Scans every stock in the uploaded NSE bhavcopy. For each stock's nearest expiry, finds the strike with the highest Call OI and the strike with the highest Put OI, then ranks stocks by how close the current price is to that strike.

OI Change (green=built up, red=unwound) needs the previous day's bhavcopy uploaded above — compares today's OI at that strike to yesterday's. PCR = stock's total Put OI ÷ total Call OI across all strikes (that expiry) — above 1 leans bearish-hedged, below 1 leans bullish-hedged. Max Pain = the strike that would cause option writers the least payout at expiry, a common (if imperfect) magnet-price estimate.

CPR is a next-day indicator: today's High/Low/Close builds the CPR (Pivot/TC/BC) that applies to tomorrow's session — not today's. So upload today's bhavcopy after market close, and this list is your shortlist for tomorrow's trading. A "narrow" CPR (small TC−BC gap relative to price) often signals a higher chance of a breakout/trending day. Formula: Pivot = (H+L+C)/3, BC = (H+L)/2, TC = 2×Pivot − BC.

Direction and Day Type need the previous day's bhavcopy uploaded above too. Volatility (D/A) shows Daily/Annualised volatility from NSE's official FOVOLT file (EWMA-based, same methodology NSE uses for margining) — optional upload above. Percentile shows where each stock ranks among ALL scanned stocks that day (0% = narrowest). Streak counts consecutive days this stock has been narrow (saved automatically in your browser each time you run this — builds up the more days you use it). OI Match cross-checks against the OI Screener — flags stocks within 0.5% of their highest-OI Call/Put strike.

Combines the Narrow CPR and OI Screener signals into one ranked list, instead of checking each tab separately. A stock scores points for: narrow CPR (up to 3), proximity to its highest-OI strike (up to 3), fresh OI buildup (+1), CPR-Direction/OI-side agreement (+1), and Delivery % ≥50 (+1) — max 9. Needs both bhavcopy files uploaded above (NSE zip for both CPR and OI; previous day's zip and delivery file optional but unlock bonus points).

Camarilla Pivots are a different formula from CPR, using the day's High-Low range × 1.1: R4 = C + Range×0.55, R3 = C + Range×0.275, S3 = C − Range×0.275, S4 = C − Range×0.55 (from today's H/L/C — predicts tomorrow's levels, same next-day logic as CPR). This screener needs the previous day's bhavcopy uploaded above (required, not optional here) since it checks a double-confirmed narrowing: tomorrow's R3 < today's R3, tomorrow's S3 > today's S3, tomorrow's R4 < today's R4, tomorrow's S4 > today's S4 — i.e. tomorrow's whole range sits entirely inside today's. Min Thinner % lets you require more than just "any shrink" — e.g. set it to 20 to only show stocks whose range shrank by at least 20% versus today's, not just marginally narrower.

Upload several consecutive trading days' bhavcopy files at once (5 or more recommended). This finds stocks whose daily traded range (High − Low) shrank every single day, oldest to newest — e.g. Day5 > Day4 > Day3 > Day2 > Day1 — not just narrower than yesterday once. A stricter, more selective version of the single-day shrink check. Min Overall Shrink % additionally requires the total contraction (oldest range vs newest range) to be at least that much — without it, even a trivial 0.01% decrease each day would technically qualify.

Date order is detected automatically from filenames like fo280726.zip (28-Jul-2026). If any file's date can't be parsed from its name, results fall back to your upload/selection order instead — check the detected order shown below before trusting the results.

Classic narrow-range setups: NR4 = today's range (High−Low) is the smallest of the last 4 days (today + previous 3). NR7 = smallest of the last 7 days (today + previous 6). Unlike Multi-Day Range, the days in between don't need to be monotonically shrinking — only today needs to be the narrowest of the group. Upload the same number of consecutive days' bhavcopy files as your chosen N (4 for NR4, 7 for NR7) — same auto date-detection and manual-correction as Multi-Day Range. OI Match cross-checks against the OI Screener (needs the NSE options bhavcopy uploaded at the top) — flags stocks within 0.5% of their highest-OI Call/Put strike.

Cross-references whichever scanners you've already run this session (OI Screener, Narrow CPR, Quality Score, Narrow Camarilla, Multi-Day Range, NR4/NR7). A stock appearing in multiple scanners' results is a stronger, independently-confirmed signal than one appearing in just one. Run whichever scanners you want included first, then come back here and click Build List.

Requires the local fyers_live_scanner.js bridge script running on your machine (see the README that came with it). This tab connects to it over ws://localhost:8765 — nothing here talks to Fyers directly, your API credentials never touch the browser.