Learn the OptionAlgo Stack

1.1 · Calls, Puts & Contracts

An option contract is a right — not an obligation — to transact an underlying at a fixed strike before expiry. A Call (CE) is the right to buy; a Put (PE) is the right to sell. Every option has a counterparty — the writer — who takes the mirror obligation and collects the premium up front.

OptionAlgo is built entirely around option-chain data. The dashboard reads the CE and PE ladder tick by tick and derives every downstream metric — GEX, PCR, IV rank, Sniper state, Strategy Lab payoffs — from those two sides.

Why it matters for the dashboard

• Buyer premium is on the ATM Greeks panel. Writer OI is on the OI Intelligence chart. The two rarely agree — that disagreement is signal-rich.
• Volume vs OI — a CE tick where volume jumps but OI doesn't move much is a same-side transfer; where both jump, it's fresh positioning. The Screener flags both.

1.2 · Strikes, ATM & Moneyness

Strikes are placed at fixed intervals — 50 for NIFTY, 100 for BANKNIFTY, 50 for FINNIFTY and MIDCPNIFTY, 100 for SENSEX. The ATM strike is the one nearest to spot. Everything above is OTM for calls and ITM for puts; everything below is the opposite.

OptionAlgo re-anchors "ATM" every tick. When you see the OI Momentum chart or ATM Greeks panel, it's tracking whichever strike is closest to spot right now — not a fixed level captured at open. This matters most for range-bound sessions where the ATM strike walks up and down as spot oscillates.

1.3 · Intrinsic + Time Value

Every option premium is exactly:

Intrinsic is the moneyness math — max(spot − strike, 0) for a call, max(strike − spot, 0) for a put. It's the piece the option would settle for if expiry were now. Time value is the remainder — everything the market pays for the possibility of further movement.

Straddle analysis, IV rank, expected-move computations and the Sniper's perfect-square logic all live in the time-value component. When you see "premium is elevated" on the dashboard, that's always shorthand for "extrinsic is elevated relative to what IV alone would justify."

1.4 · Greeks — the Five-Minute Primer

• Delta (Δ) — the option's speed relative to the underlying. ATM options run at ~±0.5, deep ITM approaches ±1.
• Gamma (Γ) — the acceleration of delta. Fattest at ATM near expiry. Gamma is the star of Topic 2.
• Theta (Θ) — daily decay. The clock the writer collects and the buyer pays. Steepest for ATM options in the last few days.
• Vega (ν) — sensitivity to a 1-point IV change. Rich near ATM and long-dated; near-zero deep OTM close to expiry.
• IV / IV Rank — where implied volatility sits vs its own 52-week range. IV Rank < 20 is historically cheap; > 80 is historically expensive.

Full Greek behavior — including cross-effects like vanna and charm as they show up in the dashboard — is covered in Topic 6.

1.5 · Weekly / Monthly Expiries

NSE index options expire on different weekdays: NIFTY on Thursday, BANKNIFTY on Thursday, FINNIFTY on Tuesday, MIDCPNIFTY on Monday. BSE runs its own calendar for SENSEX on Tuesday. That means multiple expiries collide within a single week — and each one drags gamma, theta and IV crush behavior with it.

The dashboard's expiry selector and the Strategy Lab's DTE input both let you pin analytics to a specific expiry cycle. The "next expiry" logic auto-rolls after 15:30 IST on expiry day.

1.6 · Lot Sizes & Notional

Every calculation in Position Size, Portfolio Heat, Strategy Lab payoffs and Screener notional filters is multiplied by lot size. NSE reviews these periodically — OptionAlgo tracks the current values (NIFTY 75 · BANKNIFTY 30 · FINNIFTY 65 · MIDCPNIFTY 120 · SENSEX 20 as of the current cycle). A one-lot NIFTY straddle at spot 24,000 is roughly ₹18 lakh in notional exposure — a fact the Portfolio Heat calculator surfaces immediately.

2.1 · Gamma Exposure Defined

Gamma Exposure (GEX) quantifies how much delta market makers must adjust for a 1-point move in the underlying, aggregated across every strike in the chain. It's built from public NSE data — no dealer books needed — under a signed-posture assumption.

When aggregate GEX is positive, dealers are net long gamma. Their delta hedges dampen moves — sell rallies, buy dips. When GEX is negative, dealers are net short gamma and their hedges amplify moves — buy strength, sell weakness. Two very different market regimes come out of that single sign flip.

2.2 · The GEX Flip Level

The flip level is the strike at which cumulative GEX changes sign. Above the flip, the market breathes inside its dealer-imposed range. Below the flip, moves compound. OptionAlgo recomputes the flip level every data tick and displays it on the Gamma Engine card for NIFTY, BANKNIFTY, FINNIFTY, MIDCPNIFTY and SENSEX. A separate GEX Pressure Heatmap visualizes the concentration of gamma by strike.

2.3 · CE Wall, PE Wall & Max Pain

• CE Wall — strike with the largest call OI. Acts as short-term resistance because writers must defend it.
• PE Wall — strike with the largest put OI. Acts as short-term support for the same reason.
• Max Pain — the strike at which aggregate long option value is minimised. Historical bias is that spot drifts toward max pain near expiry.

All three appear together on the Gamma card so you can read the current cage at a glance — spot is usually pinned somewhere between CE and PE walls with max pain as the gravity centre.

2.4 · Four-Scenario Model

Public NSE data doesn't tell you which side of every trade the dealer took. OptionAlgo computes GEX under four independent posture assumptions and weights them by IV trend, OI change direction, moneyness and recency. The output is a flip-level range rather than a false-precision single number. Bracketing the truth is more honest than pretending to nail it.

2.5 · Phase 1 — Structural Positioning

Phase 1 is the accumulated state of the option chain, updated every tick but interpreted as "where things stand." It contains:

• Strike-wise OI heatmap — the shape of the CE/PE OI ladder at a glance
• ATM PCR (OI-based) — the ratio of ATM put OI to call OI, a coarse tilt measure
• Max Pain marker — recomputed each tick
• OI change direction panels — 5-min and 30-min buildup vs unwinding by side
• Expected-move banner — ±1σ and ±2σ from ATM straddle premium
• IV Smile chart — CE and PE IV plotted across strikes to spot skew
• PCR Trend chart — 30-bar history so the number gets context

2.6 · Phase 2 — Flow & Momentum

Phase 2 measures rate-of-change. Instead of "where OI is," it reads "how fast it's growing where." Panels:

• OI velocity — same series that drives the OI Change Momentum chart
• Volume flow bias — which side (CE or PE) is winning today's traded volume
• Dealer delta tilt — combines gamma × OI × spot direction to infer whether dealers are net buying or selling futures
• IV Rank / Percentile gauge — where today's IV sits vs the 52-week band
• GEX pressure bar — buyer vs seller gamma dominance in a single visual
• Divergence alerts — when Phase 1 says one direction and Phase 2 says the other

When both phases agree, the probability of a sustained move is highest. When they diverge, expect chop or a pending reversal.

2.7 · GEX-OI Monitor

The GEX-OI Monitor runs continuously and highlights any strike whose gamma × OI contribution jumps materially inside a rolling window. When you see the flip level shift, this monitor tells you the exact strike responsible — so you can watch it, ladder into it, or avoid it based on your view.

3.1 · OI Change Momentum Chart

The chart is a 30-tick rolling buffer. Each tick is roughly 2 seconds during market hours, so the window covers about 60 seconds of live activity. Colour semantics:

• Red — ATM CE buildup: call writers adding above; overhead pressure growing
• Dark — ATM CE unwind: overhead resistance thinning
• Green — ATM PE buildup: put writers adding below; fresh support
• Grey — ATM PE unwind: support eroding
• Violet — OTM PE buildup: OTM put OI expanding; Sniper confirmation

The label under the chart names the aggregate tilt — "PE > CE (support active)" or "CE > PE (sellers in control)". Sessions where CE bars dominate morning tend to pin or push down; PE-dominant sessions often precede short-covering rallies.

3.2 · PCR Variants — OI, Volume, Trend

• PCR (OI) — total PE OI ÷ total CE OI, a slow-moving structural tilt
• PCR (Volume) — traded volume PE ÷ CE, a faster measure of intraday intent
• PCR Trend chart — 30-bar rolling history so you can spot regime changes
• Change-of-Direction (CD) alert — fires when a PCR variant flips its short-term slope

3.3 · 5% OI Spike Threshold

Any single-tick OI change exceeding 5% at a strike gets flagged in the flow alerts panel. The threshold is calibrated to filter out normal retail chatter while catching genuine institutional prints. Combined with the OI momentum chart, spikes usually pinpoint the exact strike that will drive the next 15–30 minutes of price action.

3.4 · Volume / OI Ratio (VOR)

VOR compares today's traded volume at a strike to its current OI. A high VOR — well above the strike's historical mean — implies fresh, aggressive positioning rather than rolling or hedging of existing books. When a high-VOR event happens near a GEX wall or the flip level, it often marks the ignition of a breakout or a failed test.

3.5 · OI vs Time — Any Strike

Pick any strike, get its OI curve for the current session. Independent CE and PE views with a time-range slider and an ATM-range filter let you see whether OI is being accumulated evenly, dumped in a single window, or defended at a specific price. Combined with intraday spot movement, it reveals the accumulation and distribution zones from writer flow.

3.6 · OI Buildup Screener

The OI Buildup scanner (part of the F&O Screener — see Topic 12) sweeps all F&O names for the strongest CE and PE OI moves. Sorted by strength, filterable by direction, exportable to CSV. Ideal for stock-side option plays where you'd otherwise need to open a hundred chains manually.

4.1 · Tick-Level Feed & Aggregation

The order-flow engine reads ticks from the Kotak Neo HSM WebSocket in production (with an automatic fallback to a synthetic mock feed if credentials are missing). Every tick is classified as bid-side or ask-side using an aggressor rule, streamed onto a bus, and consumed by the Aggregator which builds:

• OHLCV candles at multiple timeframes
• Per-candle bid volume & ask volume (the raw footprint inputs)
• Delta (ask − bid) and cumulative delta series
• Per-bar POC and session VWAP

All of it is persisted to a SQLite WAL database for hot writes, with daily volume-profile JSON rollups written to server/data/profile/. The frontend consumes it live via a WebSocket and lazy-loads history via a Fastify REST API.

4.2 · Bid × Ask Footprint

Instead of a single OHLC bar, the footprint view draws every candle as a vertical price ladder. Each price row inside the candle shows two numbers side by side:

• Left cell — total volume that traded at the bid at that price (aggressive sellers)
• Right cell — total volume that traded at the ask at that price (aggressive buyers)

You can pan (drag) and zoom (scroll) any window. Colour intensity scales with volume so the eye finds the price where the real action happened without a chart legend. Combined with delta, the footprint is the closest thing on a chart to sitting on the exchange tape.

4.3 · Delta Bars & Cumulative Delta

Per-bar Delta = Ask Volume − Bid Volume. Green delta = buyers were more aggressive; red = sellers. Plotted as a mini histogram underneath the candles.

The Cumulative Volume Delta (cVD) line sums delta across the whole session — it's the running "who's winning" score. The classic order-flow reversal read is a divergence: price making a new high while cVD makes a lower high means the up-move is running out of aggressive buying.

4.4 · Diagonal Imbalance (≥3×)

A diagonal imbalance compares a bid cell at price P to the ask cell at price P − 1 tick (or bid at P vs ask at P + 1 tick on the sell side). When one side is ≥ 3× the other, the cell is flagged in the footprint.

Stacks of imbalances in the same direction are the most reliable signature of aggressive absorption — one side is refusing to yield price. When a stack shows up at an obvious level (previous day high, VWAP, POC), it usually precedes a directional resolution.

4.5 · Per-Bar POC & Session VWAP

Every candle gets its own Point of Control — the price at which the most volume traded within that bar. The POC dot on each candle tells you where the acceptance was, not just where price closed.

The Session VWAP line runs across the chart from open, weighted by volume. When price returns to VWAP from a distance it's a heavily-watched level; when it accepts far above or below VWAP, imbalance is compounding.

4.6 · Order Blocks (OB)

An Order Block is the last opposite-colour candle before a strong impulsive move — the assumption being that institutions filled aggressively at that block. The engine auto-detects OBs across timeframes, scores each by strength (impulse displacement, volume, follow-through), and tracks whether the block has been mitigated (revisited) or is still fresh.

Fresh OBs act as high-probability reaction levels. The Zones view lists active OBs with strength scores, timestamps and current price distance so you can see instantly which levels matter.

4.7 · Fair Value Gaps (FVG)

An FVG is a three-candle pattern where the middle candle's range doesn't fully overlap with the wicks of the surrounding candles — leaving a gap in traded volume. The engine tracks unfilled gaps as future price magnets. When price re-enters an FVG, the fill-percent is tracked so you know how much of the gap has been resolved.

4.8 · Liquidity Pools & Sweeps

Buy-side liquidity clusters above equal highs; sell-side liquidity clusters below equal lows. That's where stops live. When price sweeps a pool and reverses within a small tolerance, it's classic institutional stop-hunting behaviour. The engine tracks:

• Active pools with type (buy-side / sell-side) and confluence score
• Sweep events with timestamps and reversal magnitude
• A toaster alert fires the instant a pool is swept

4.9 · BOS & CHoCH Markers

• BOS — Break of Structure: a swing high (or low) is decisively broken in the direction of the trend. Continuation confirmed.
• CHoCH — Change of Character: a swing high (or low) is broken against the prior trend, usually the first hint of a regime shift.

Both fire live on the chart with directional labels so you can spot the shift the moment the market prints it.

4.10 · Stacked Imbalance Zones

When two or more consecutive footprint rows all show a diagonal imbalance in the same direction, the block gets a stacked-imbalance zone marker. These behave like mini order blocks with an intra-candle resolution — often a leading read on the more established higher-timeframe OB that forms later.

4.11 · Volume Profile — POC / VAH / VAL

The session volume profile is a horizontal histogram of volume by price. Three labels sit on it:

• POC — Point of Control, the single price with highest volume
• VAH — Value Area High
• VAL — Value Area Low

The Value Area (VAH → VAL) contains ~70% of session volume and is shaded on the profile. Each level is tinted by session delta so you can see where net buying vs net selling concentrated. Nightly rollups run at 15:45 IST (10:15 UTC) so the previous session's profile is ready before the next open.

4.12 · Bar-by-Bar Replay

Every session window can be replayed bar-by-bar at 1× · 2× · 5× · 20× · 50× · 200×. All overlays — footprint cells, delta, order blocks, FVGs, liquidity pools — stay live during replay so post-market study is realistic instead of retrospective. Ideal for training the eye to spot setups before hindsight steps in.

4.13 · Live Order-Flow Alerts

Two client-side triggers fire an in-app toaster the moment they hit:

• Price entering an active Order Block zone
• A Liquidity Pool sweep — price runs the pool and reverses within tolerance

Because both run client-side, there's no polling and no server round-trip — the toaster shows within a tick.

5.1 · Why Perfect Squares?

Perfect squares — 14² = 196, 15² = 225, 16² = 256, 17² = 289, 18² = 324, 19² = 361 — act as natural psychological stops in premium space. A retail seller who sold an OTM PE for ₹130 subconsciously anchors "exit if it hits ~200" or "definitely exit at 225." Enough sellers with clustered mental stops at the same level create a cascade — as premium crosses one square, stops trigger and premium overshoots to the next.

The Sniper doesn't predict when the cascade begins. It monitors the setup structurally and fires precisely as the cascade steps through each square.

5.2 · The State Chain

5.3 · Bull & Bear Cards

Every symbol runs two independent state chains: a Bull chain watching OTM CE for upside panic, and a Bear chain watching OTM PE for downside panic. Both cards on the dashboard show current state badge (IDLE / SETUP / WATCH / ENTRY), live ATM LTP vs previous close, OTM LTP vs sniper point, progress bars, and entry + target levels.

5.4 · Multi-Symbol & Restart Logic

NIFTY, BANKNIFTY and SENSEX each run their own state machine in parallel. Each chain has independent SETUP / WATCH / ENTRY conditions. If OptionAlgo restarts during market hours and ENTRY conditions already hold on any symbol/side, the alert fires immediately on startup — no missed signals during maintenance.

5.5 · 15:35 EOD Cron

At 15:35 IST every trading day a scheduled job captures each symbol's previous-day snapshot — ATM levels, OTM levels, sniper point — and stores it as the reference for the next session. That's why the state chain can meaningfully compare "now" to "previous close" instead of an arbitrary baseline.

5.6 · Telegram Alert Flow

Each state transition fires a distinct alert. A dedup lock prevents the same state from re-firing within a session, so restarts and micro-oscillations don't spam your bot. Wire your chat ID once via the dashboard settings and the alerter dispatches immediately.

6.1 · Live ATM Greeks

• IV — the market's expectation of future volatility priced into the premium. Rising IV without a spot move signals hedging demand or event risk.
• Delta (Δ) — climbing ATM CE delta without a spot rally often precedes a dealer re-hedge and a GEX-driven acceleration.
• Gamma (Γ) — highest at ATM near expiry; drives the most hedging activity per point of spot move.
• Theta (Θ) — daily decay; accelerates in the last 3 sessions to expiry. Used to flag "decaying faster than expected" IV crush.
• Vega (ν) — sensitivity to a 1-point IV move. Rich at ATM; drives expiry-week premium expansion and post-event IV crush.

6.2 · IV Rank & IV Percentile

IV Rank normalises current IV to its 52-week high–low band on a 0–100 scale. Rank < 20 means IV is historically cheap — favourable for premium-buying setups or an IV expansion play. Rank > 80 means IV is historically expensive — favourable for premium selling. IV Percentile complements the rank by asking how often IV was below today's level in the last 252 sessions.

6.3 · IV Smile Chart

The chart plots CE and PE IV across strikes. A flat smile means the market is pricing balanced risk. A pronounced put-side smirk (PE IV > CE IV) is downside hedging demand. A pronounced call-side smirk (CE IV > PE IV) is upside breakout fear. Watching the shape shift intraday is a leading read on where dealer flow is concentrating.

6.4 · ATM IV Skew

Simple summary: CE IV minus PE IV at the ATM strike. Positive skew means CE is priced richer than PE — upside fear. Negative skew is the reverse. When skew flips direction intraday it usually precedes a change in dealer hedging bias, and a Telegram alert can fire on the flip.

6.5 · IV Term Structure

OptionAlgo plots IV across the current and next few expiries. A normal (upward-sloping) curve means near-term calm and further-term uncertainty — the default state. An inverted (downward-sloping) curve means near-term panic is priced in — usually around events, earnings and policy days. The curve reshapes almost immediately after the event, often creating IV-crush opportunities.

6.6 · Expected-Move Banner

The Expected-Move banner reads today's ATM straddle premium and converts it into ±1σ and ±2σ levels around spot. It's a quick read on the session's implied range and, over the day, on whether realised movement is outrunning or lagging what the market priced.

7.1 · Live Straddle Premium

Straddle Premium = ATM CE LTP + ATM PE LTP. The number itself is prosaic. What matters is how it evolves — sudden premium expansion without spot movement is a fear print; a slow drift down with spot flat is normal theta decay; a sharp drop with an IV move is dealer capitulation.

7.2 · Break-even Range

Straddle break-even = ATM strike ± straddle premium. This is the distance spot must travel by expiry for the buyer to recoup cost. Compare it to the recent ATR or the expected-move banner: when break-even is materially wider than realised daily range, systematic selling has a statistical edge.

7.3 · Straddle Decay Curve

The decay curve is the theoretical premium path if spot pins ATM until expiry — pure theta. Real premium tracks or deviates from this line as IV shifts. A straddle premium moving above the decay curve is IV expanding; moving below is IV compressing (crush).

7.4 · Premium & Skew Alerts

Two configurable Telegram alerts: (a) straddle premium below a threshold — useful for sellers managing exits; (b) IV skew direction flip — useful for anticipating dealer hedging changes. Both live in the Straddle card settings.

8.1 · Advance/Decline & 52W H/L

A/D counts show how many NSE stocks are advancing vs declining right now. An index up-move with A/D < 1 is a narrow move driven by heavyweights — structurally weaker than a broad rally. The 52-week new-high / new-low count sits alongside; rising highs with a rising index confirms trend health, divergence flags distribution.

8.2 · Sector Heatmap

Intraday % change for eight major NSE sectors. Read the shape of the heatmap, not any single tile — three green + five red is a rotation, not a rally, and rotations rarely sustain index moves.

8.3 · FII & DII Derivative Positions

• FII Index Futures Long/Short ratio — bullish exposure at a glance
• FII Options CE vs PE OI — CE dominance is bullish/neutral, PE dominance is bearish or heavy hedging
• DII positioning — mutual funds and insurers, structurally long cash, rarely aggressive in derivatives

8.4 · NSE Events Calendar

A rolling forward calendar of the events that move IV — RBI policy, FOMC, GDP prints, expiry days, budget dates and major earnings. Each item shows the countdown so you can size around them.

8.5 · Pivots + CPR

Standard pivot (P, R1–R3, S1–S3), Camarilla and Fibonacci variants are computed nightly on the previous session's OHLC and pinned on the levels card. The Central Pivot Range (CPR) — TC / P / BC — frames how "wide" the day's expected range is. A narrow CPR often precedes trending sessions.

8.6 · Rollover Metrics

Rollover % (from current-month to next-month futures OI) and the cost of carry are the traditional read on institutional conviction heading into the new series. High rollover with rising cost of carry is a bullish setup; low rollover with negative cost of carry is a bearish one.

8.7 · Market Movers Board

Top gainers, top losers, unusual volume, price-band hitters and 52-week movers, all in one board with click-through to the Screener for deeper filtering.

8.8 · Global Markets & GIFT NIFTY

Overnight US session close, Asia opens (SGX, Nikkei, Hang Seng) and the pre-market GIFT NIFTY print sit at the top of the dashboard so you enter the session with the same context the professional desk has.

9.1 · Crypto Gamma Exposure

BTC and ETH options on Deribit are the deepest listed crypto derivatives book. OptionAlgo reads that chain plus perpetuals data to estimate dealer gamma by strike. Because crypto trades 24/7 and there is no close to reset books, GEX flips tend to have sharper price effects than they do on NIFTY.

9.2 · Funding Rate

• Positive funding — longs pay shorts. Crowded long; elevated readings (> 0.05% / 8h) precede long liquidation cascades.
• Negative funding — shorts pay longs. Crowded short; often resolves in a short squeeze.
• Funding trend — a flip from negative to positive during an uptrend confirms institutional longs entering, not just retail.

9.3 · Long/Short Ratio

L/S from Binance top-trader perp positions. L/S > 1.5 is crowded-long — contrarian caution. L/S < 0.8 is crowded-short — potential fuel for a squeeze.

9.4 · Liquidation Heatmap

Top 3 long and top 3 short liquidation levels for BTC and ETH, refreshed every 30 minutes. Clusters act as price magnets — the market frequently hunts them before reversing.

9.5 · Crypto IV Term Structure

IV across 7 / 14 / 30 / 90-day tenors. A normal upward-sloping curve is calm; an inverted curve is near-term panic pricing.

9.6 · Fear & Greed Index

Composite 0–100 sentiment gauge with 7-day trend. Under 20 (Extreme Fear) has historically been a strong medium-term buy zone; over 80 (Extreme Greed) has preceded corrections.

9.7 · BTC.DOM & Basis

BTC dominance measures BTC's share of the total crypto market cap. Rising dominance is risk-off within crypto; falling dominance is risk-on (altcoin regime). The basis card compares perp / quarterly futures vs spot — a widening premium confirms expanding leverage; a discount signals stress.

10.1 · The 36-Strategy Library

Filtered by market outlook: 9 Volatile (long straddle, long strangle, reverse iron condor …), 9 Bullish (bull call spread, ratio spread, jade lizard …), 9 Bearish (bear put spread, put ratio, back-spread …), 9 Neutral (iron condor, butterfly, calendar …). Every template pre-fills strikes at reasonable ATM offsets so you can see the payoff shape immediately.

10.2 · Multi-Leg Builder

Legs list on the left, chart on the right. Add up to 8 legs, each with its own type (CE/PE), side (buy/sell), strike, premium and lot count. Every edit re-runs the payoff and the risk metrics.

10.3 · Live Premium Loading

Loads live LTPs from the shared option-chain cache — no extra rate-limited hits. A freshness pill under the total premium tells you how stale each price is and turns amber when it's over 30 seconds old.

10.4 · Multi-DTE Payoff Curves

Three curves overlay by default: expiry payoff (solid), T+0 (dashed), T+3 (dashed). You control DTE and IV directly. This is the single most useful view for spread traders — the "how does this look mid-trade, not at expiry" answer.

10.5 · IV Shift Slider

Slide the IV shift between −50% and +100% and the payoff cone reshapes instantly. Great intuition builder for vega-heavy structures (straddles, calendars) where you need to feel how a 5-point IV move rewrites the P&L.

10.6 · Risk Metrics

Max Profit, Max Loss, Risk:Reward, Probability of Profit (at expiry, log-normal) and every breakeven appear as chips at the bottom of the chart. Everything recomputes on each edit — no "run" button.

10.7 · Estimated Margin

Approximate SPAN + Exposure margin based on current lot sizes and standard exchange margin logic. Not broker-exact, but close enough to know whether an eight-lot Iron Condor is realistic for your account before you place it.

11.1 · Position Size Calculator

Inputs — account size, risk %, entry, stop, lot size, direction. Outputs — quantity, lot count, capital deployed, capital %, stop distance in points and %. F&O-aware: floors quantity to whole lots automatically so the shown quantity is what you can actually place.

11.2 · Risk : Reward Calculator

Enter entry, stop and target. See risk in ₹, reward in ₹, R:R ratio and a colour-coded risk vs reward bar. Especially useful for options where the R:R changes materially with each 25-point strike shift.

11.3 · Drawdown Recovery Table

The classic table: a 25% drawdown needs 33% return to recover; 50% needs 100%; 75% needs 300%. Sits inline in your session so you don't paper over a bad week by promising yourself "just one big trade."

11.4 · Portfolio Heat

List every open position with quantity, entry, stop and lot size. Get total heat as % of account. A stacked risk bar visualises how each position contributes to the whole. When heat > 6% the tool flags it — one bad session is a bad month at that exposure.

11.5 · F&O Tax Calculator

F&O is treated as non-speculative business income in India. This calculator adds F&O turnover (absolute sum of profits/losses per trade), computes tax on net income using the current slab, and estimates advance tax liability. Cash equity STCG/LTCG is handled separately.

11.6 · Performance & Expectancy

Enter win rate, average win, loss rate, average loss. See expectancy per trade and per session. Also computes payoff ratio and Kelly fraction so you can compare "should I take this setup?" answers apples-to-apples.

11.7 · Dividend / DRIP Projection

For the investing side of your account. Enter initial investment, yield, growth rate and horizon. See end value, dividends collected, extra shares acquired via DRIP and the yield-on-cost 10 or 20 years out.

12.1 · Price & Volume Movers

Top gainers, top losers, RVOL > 2, RVOL > 5 (volume shockers), price-band hitters (upper/lower). Each pill is a live count. Click through for the sortable table with % change, RVOL, RSI and a sparkline column.

12.2 · Technical Filters

RSI zones (below 30, 30–70, above 70), EMA relationships (above 20-EMA, 20 < 50, 50 < 200), 52W distance bands, MACD histogram flips, ATR breakout counts. Filters stack additively — pick "RSI 30–70 AND above 20-EMA AND close to 52W high" and you get a very specific setup list.

12.3 · OI Buildup / Unwinding

The four classic quadrants:

• Long Buildup — price up, OI up
• Short Buildup — price down, OI up
• Long Unwinding — price down, OI down
• Short Covering — price up, OI down

12.4 · Order-Flow Scans

Delivery-% scan (institutional accumulation), VWAP distance (intraday buying vs selling zone), block-trade counts and cumulative volume shockers.

12.5 · Sector Rotation Scan

Ranks sectors by their intraday % change and by rolling 5-day performance. When leadership rotates mid-session it usually rewrites the option chain positioning as well — this scan surfaces the switch fast.

12.6 · Custom Screener Builder

Pro-tier feature. Combine any filters (technical + OI + flow + sector), save with a name, and the scan runs automatically every session. Ideal for personalised setup lists you'd otherwise recreate manually every morning.

12.7 · CSV Export & Sparklines

Every table has a CSV export button. Sparklines show the last 20 sessions of price so you can eyeball the trend without leaving the scan. Filters stay applied to the exported file.

13.1 · Fixed-% Position Sizing

Everything else is downstream of sizing. If you risk 1% per trade you can be wrong 30 sessions in a row and lose ~26% of the account. If you risk 5%, the same 30-loss run leaves you at ~21% of the original account. The math of drawdown recovery is unforgiving; the Drawdown Recovery calculator makes it visual so you feel it before you live it.

13.2 · Aggregate Heat Discipline

Individual trade risk vs total open exposure are two different numbers. Ten "small" 1% risks are a 10% loss on a bad-correlation day. The Portfolio Heat calculator sits in this topic because most blow-ups start with over-optimism on correlation, not on any single trade being wrong.

13.3 · SL & Target Discipline

OptionAlgo's paper-trading engine auto-exits positions the moment price hits your SL or target — no manual override. That single behavioural gate wipes out "let me give it a bit more room" and "let me lock in a smaller profit early" simultaneously. The toast notification confirms the trigger for the audit trail.

13.4 · Decision-Quality Journal

Every exit gets a tag — Plan Followed, FOMO Entry, Revenge Trade, Early Exit. Aggregated over months the tag distribution reveals the single most expensive habit in your P&L. Fix that one habit and the win rate curve shifts on its own.

13.5 · Combining the Intelligence Stack

A rough decision flow that uses everything at once:

1. Start with the global cue + GIFT NIFTY and the previous session's Sniper snapshot — set a directional bias.
2. Open the Gamma Engine — locate the flip level and the CE / PE walls. Frame the day's likely range.
3. Overlay the Order Flow footprint — is delta / cVD confirming the direction, or diverging? Absorption at a level is the strongest confluence.
4. Mark the day's Order Blocks, FVGs and Liquidity pools — the levels the market will react at.
5. Check Expected Move vs ATR — are options priced above or below realised movement?
6. Wait for a trigger: an OB re-entry, a liquidity sweep, or the Sniper ENTRY state. Ideally two of the three align.
7. Watch OI Momentum and cVD together as confirmation the move has flow behind it.
8. Size in the Position Size calculator. Check total Portfolio Heat before placing.
9. Journal on exit. Tag the decision. Move on.

13.6 · SEBI & Educational-Only Notice