Gap Up Trap: Closed Below Previous Close
Gapped up 1-15%, printed an upper wick of at least 0.5%, then sold off through the whole gap to trade below yesterday's close - a fully reversed gap (red on the day, not just a red candle). Judged on the live daily candle (official open, running high / low, latest price) against the previous official close - the same answer on 5m, 15m, 1h and 1d, refreshed every few minutes; best read after 3:15 PM.
About This Scan
The strictest version of a failed gap-up: not just a red candle, but a stock that opened 1-15% higher and slid all the way through yesterday's close, so it is red on the day. These traps often show forced unwinding of early longs. The scan needs an upper wick of at least 0.5% so only gaps that were actually sold, not drifted, qualify.
Scan Rules
Stock passes all of the below filters in the ALL segment using 1D candles:
- 1.Day Gap Up % between 1
- 2.Day Change vs Previous Close % less than 0
- 3.Day Upper Wick % greater than or equal to 0.5
- 4.Traded Value (Rs lakh) greater than or equal to 500
Last Session Sample
As of 2026-11-06, 9 stocks passed every rule. The 5 below are the strongest movers on the list.
| Symbol | Close | Change vs previous close |
|---|---|---|
| BRITANNIA | 4785 | -3.92% |
| TONBO | 1472.4 | -3.78% |
| TIMETECHNO | 170.65 | -1.98% |
| CPPLUS | 4131.4 | -0.94% |
| PERSISTENT | 6053.5 | -0.92% |
Sign in to see the full list, the sector breakdown, a clickable history of every day and extra columns. Past matches are not a forecast.
How To Use This Scan
- •Treat the previous close as the line the gap had to defend - a close below it means the whole gap was rejected.
- •Prefer names with above-average volume; thin gaps fill by default.
- •Use the sister scan 'Gap Up, Red Candle with Upper Wick' for the broader, earlier version of this setup.
Frequently Asked Questions
What is a gap fill?
A gap fill happens when price returns to the previous close after opening away from it. This scan looks for gap-ups that filled completely and closed beyond it.
Why cap the gap at 15%?
Gaps beyond 15% on daily data are usually corporate-action price adjustments such as splits or bonuses, not genuine overnight gaps.