Session Chart
Minute candles for an index or F&O stock with every number the app has drawn on them — the dealer-positioning levels at their prices, the session's context and the read on the legend lines, the auctions shaded, the day's events marked.
What the Session Chart shows
One-minute candles of the index or stock you pick, with everything the app knows drawn on the chart itself: the call wall, the put wall, the pin, the gamma flip, the expected-move band and the session VWAP at their prices; the open, the previous session, the day's range, max pain and the hedge flow as quiet lines; the open-interest bars beside the candles; the auctions shaded; the day's events marked along the top; and three legend lines at the top-left — the bar under the cursor, the session's positioning context, and the read. The read asks one question of every candle: which way does the backdrop lean right now, and do its parts agree — and it lists the reasons rather than hiding them.
Watch the tutorial
Session Chart, section by section, in a 4-minute video, also in Hindi, Tamil, Telugu, Kannada and Malayalam.
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How to read it
- All, Selected, Hidden — the switch at the chart's top-right sets how much the chart shows. All shows every legend line, every line on the chart and the full key. Selected shows only what you pick: press the sliders button beside the switch and tick what you want, from each number on the legend lines to each line on the chart. Hidden leaves the candles, the call wall, the put wall, the pin, the gamma flip and VWAP. The chart opens on All on a wide screen, Selected on a laptop or tablet and Hidden on a phone, and remembers your choice for each screen size in this browser.
- Leans up / Leans down · agreement — the lean of the backdrop and how much its parts agree (0–100). Agreement rises when the parts point the same way and volume confirms; it falls near the gamma flip, in the first fifteen minutes, into the close and on expiry afternoons.
- Candles that carry the flow — solid body = the current-month future's open interest rose during the bar (a long build-up on a green bar, a short build-up on a red one); hollow body = open interest fell (short covering on green, long unwinding on red); brighter colour = volume above the session's median. Hover a bar for its volume, OI change, build-up and the read's lean at that time.
- The three legend lines — top-left, over the chart, each labelled with its time. BAR is the bar under the cursor — its prices, volume against the session's median, futures OI change and build-up, basis, and the straddle's expected move to expiry. SESSION is the positioning context as of the collector's last minute: the gamma regime and net GEX, the pin, put-call ratio, ATM implied vol, futures OI and its day change, futures volume, dealer delta, expiry and the sessions left, the corridor, concentration, vanna and charm. READ is the read: its lean, agreement and sentence, with a chip per reason (hover a chip for the full reason). The things that change a decision are badges — the build-up, heavy volume, the gamma regime, a strike that is pinning, expiry day — and green or red chips carry the direction of an OI change and the lean.
- What happened, minute by minute — small marks along the top of the chart replay the options-activity ranking and the flow reads through the day: a strike-side trading four times its usual five-minute volume, or a strike-side whose open interest moved three percent in one bucket, with the read the flow page gives it. Hover a mark for the time and the fact. Facts with a time, not directions. Pick a past session and a span of up to five sessions from the controls.
- The auction windows — the shaded band before 09:15 is the opening auction — no index prints; it carries the previous close, the implied open and the gap the bell printed, with the 09:30 verdict once it is in. The band from 15:15 is the closing auction — the index stops updating at 15:15 while closing orders are collected, the auction reprints it in one step around 15:30 (the candle that jumps off the flat line, marked with the print and its divergence from futures-implied cash), and futures trade on to 15:40.
- The lines — call wall (red) and put wall (green) are drawn bar by bar, so you see where they moved through the day; the pin (amber, dashed) the same way, and the gamma flip as a purple dotted path that follows it through the day; each current level is named on the price axis. The grey band is the day's share of the straddle's expected move from the open — the straddle prices the move to expiry, and one session gets that over the square root of the sessions left. Dotted lines carry the open, the previous session's close, high and low, the session's high and low, max pain, the hedge flow desks would trade at half a percent either way, and any strike you set an alert on. While the market is open, a tag under the live price counts down the time left in the forming bar.
- The reasons — every read lists what drove it — regime, walls, pin conviction, futures OI build-up, VWAP, stretch from the open, implied-vol drift, charm into expiry, volume and the clock — so nothing is a black box.
Frequently asked questions
No. It is a reading of hedging pressure, open interest and volume against the candle on screen — which way the backdrop leans and whether this candle agrees with it. It says nothing about what you should trade; it gives you the context to decide.
Measured, not assumed. Each part of the read is a tendency found in the stored sessions (for example, a move beyond one expected move from the open giving some back), weighted by how often it held. On the five sessions it was calibrated on, the combined lean matched the next fifteen-minute direction about half the time on the sessions held out — so it is shown as context on the chart's read line, with its reasons, and never as an arrow on a candle. The calibration is re-run as sessions accumulate.
Prices, volume and futures open interest stream from your own broker connection through the app's market-data feed, minute by minute, and the levels are the same dealer-positioning numbers the Dealer Positioning cockpit computes from the option chain every minute.
The first fifteen minutes, the last ten before the cash freeze, the closing auction and expiry afternoons are times when the clock outranks positioning — the open is still finding its level, or decay pins the price. The read says so in its reasons rather than pretending to a confidence it does not have.
Any NSE F&O stock. The first time a stock is opened it joins the live feed and the positioning collector, so its first minute can take a moment; after that it streams like an index.