See who controls the tape
before the candle closes
BidAskBattle is a live institutional pulse + option depth desk for Nifty and Bank Nifty. Spot huge walls, imbalance flips, and leading flow — without waiting on chart lag alone.
Near-ATM option depth
NIFTY 50
24,648.40+0.12%Institutional Pulse
Regime · Buyers in control
Accel ↑1m Imbalance
+62%
15s Accel
+0.08%
CE 1m
Bids
PE 1m
Asks
Depth battle
Qty vs medianHuge bid wallSPIKE
24650 CE
1.2L
3.4× median
Huge ask wall
24600 PE
48K
2.1× median
Signal stream
Max size windows
Tracking
09:28:04
Feed
12ms
What this is
Live institutional pulse + option depth
It answers who is stacking size right now, whether a huge wall just appeared, if flow is leading or only confirming, and whether the index actually moved after a signal.
Who is in control?
See buyers and sellers stacking near-ATM size as the book changes — live.
Leading or lagging?
Catch wall spikes, Δqty, and imbalance flips before a big 5m candle finishes.
Did it follow through?
Measure the index after every signal with accountable 1m and 5m outcomes.
Live session only. Tracking begins when you open the desk. Earlier history is not stored, and the 1m / 5m / 15m / 30m windows fill from the “Tracking from” time shown on screen.
Main functions
Everything on the desk
Built for intraday index options traders who want tape / depth context alongside price.
Live depth desk
Subscribes to full feed for index + nearest-expiry ATM±5 option contracts. Both Nifty and Bank Nifty stay mounted so stats keep running while you switch tabs.
Institutional Pulse
Score, regime, accel, imbalance, CE/PE split, Δqty, walls, and alerts — one glance at who is stacking size right now.
Huge bid / ask walls
Detects size ~3× larger than recent normal. Toast + tone on new walls so you don’t miss institutional stacking while looking elsewhere.
Max Bid / Ask cards
Highest displayed bid/ask size over rolling 1m / 5m / 15m / 30m windows — max snapshot size, not raw tick sum junk.
Peak liquidity cards
Highest bid/ask price+qty peaks over those windows (ATM±1) — where size really concentrated.
Option depth table
Live strikes with tags when a row is the 1m / 5m / 15m / 30m high bid or high ask.
Signal log
Debounced alerts plus After 1m / After 5m index outcome from LTP at signal time. Judge which cues actually preceded follow-through.
Cross-index hints
Nifty ↔ Bank Nifty peer confirmation when both lean the same way — less single-index noise.
Stale feed + session reset
Warns if ticks stop updating. Clears buffers around IST 09:15 so pre-open doesn’t poison the day.
Data shown
Institutional Pulse metrics
Header shows index LTP, ATM strike, live/stale status, regime badge, and tab chips for Buyers / Sellers / Even from 1m max bid vs ask size.
Pulse readouts
15s Accel
Very short index move — early pressure cue
1m / 5m Index
Short confirm windows after a lean
1m Imbalance
Max bid size vs max ask size lean
CE 1m / PE 1m
Calls vs puts book lean
Δ Bid / Δ Ask 1m
Net size adds on each side
Inst. Score (−100…+100)
Buy vs sell pressure summary in one number
Huge bid / ask wall
Symbol, qty, price, × vs median, spike flag
Live alerts
Early cues — wall spike, Δqty, imbalance flip, CE/PE lean.
Usually after the move is already visible (e.g. big 5m %).
Signal log outcomes
Debounced signal title + time, then After 1m / After 5m index % from LTP at signal time. A dash means that window has not elapsed yet (or no LTP yet).
Benefits
Why traders keep the desk open
Earlier context than candles
Wall spikes, Δqty, and imbalance flips can show up before a big 5m candle finishes.
Noise control
Signals debounced (~20s per type). Max-size windows avoid summing every tick into junk totals.
Accountability
Signal log shows what the index did after the alert (1m / 5m), so you can judge which cues work for you.
Both indices at once
Tab chips show who is in control on Nifty vs Bank Nifty without losing state.
How it helps
Context for real market moments
It does not replace risk management, option Greeks, or a trading plan. It is a context layer on live depth.
Index chopping
See whether bids or asks keep winning the size battle.
Sudden spike / dump
Separate leading wall/Δqty from lagging “confirmed 5m move” signals.
Fake breakout fear
Huge ask into a rally (or huge bid into a dip) flags absorption / distribution.
Waiting for confirmation
Peer index lean + score meter reduces single-index noise.
Reviewing your reads
Signal log outcomes teach which alerts actually preceded follow-through.
Trade ideas
Confluence — not a single badge
Use multiple cues together. Prefer leading alerts over late confirm prints.
Find the wall
Near-ATM depth
Confirm the flow
Score + imbalance
Define invalidation
Before entry
Bullish / CE lean
Buyers defending the book
Conditions
5-point confluence- 1Huge bid wall (or bid wall spike) near ATM
- 21m imbalance / Δ Bid lean buyers
- 3Inst. Score turning clearly positive
- 4Preferably peer index also buyer-leaning
- 5Prefer leading alerts over late “Confirmed 5m rise”
Illustrative execution
Buy CE / bullish structure on a dip toward the bid wall.
Invalidation: Wall pulls and the ask side seizes control
Bearish / PE lean
Sellers controlling supply
Conditions
5-point confluence- 1Huge ask wall (or ask wall spike) near ATM
- 21m imbalance / Δ Ask lean sellers
- 3Inst. Score clearly negative
- 4Peer index also seller-leaning
- 5Prefer leading cues; treat confirmed 5m fall as already late
Illustrative execution
Buy PE / bearish structure on a bounce into the ask wall.
Invalidation: Wall vanishes and bids reclaim control
Stay flat / wait
No position is a valid position
- Quiet regime or two-sided battle
- Feed is stale
- Only late confirmation remains
- Rolling windows are still filling
Pre-entry checklist
Six checks before risk goes on
- 1Is the feed live (not stale)?
- 2Is there a leading cue + matching score/imbalance?
- 3Does the peer index agree (or at least not strongly opposite)?
- 4Is the wall still present (not immediately pulled)?
- 5Do you have a defined stop if size flips the other way?
- 6After entry, watch signal log outcomes over days to refine which alerts you trust.
Alerts & sound
Toast + tone for huge walls
Debounced wall alerts
Toast + tone only for Huge bid wall / Huge ask wall — not every tick.
Color coded
Green toast = buyers stacking · Red toast = sellers stacking.
Mute anytime
Speaker icon on the Pulse card mutes tones. First click also unlocks browser audio.
Limitations
Read this before trading
Live only from page open — no historical rebuild of earlier walls
Depth can spoof / pull; walls can disappear quickly
ATM hysteresis reduces flicker, but ATM can still shift on strong moves
Not financial advice — sample workflow for discretionary traders only
Open the desk. Watch the battle.
Live Nifty & Bank Nifty option depth with institutional pulse, wall alerts, and accountable signal outcomes.
Try BidAskBattle