NIFTY 21-May 15m: Compression base 23728-23815, breakoutNifty 50 IndexNSE:NIFTYAlphaAdeptNIFTY 21-May-2026 intraday on 15m timeframe -- 10:15 IST. OPEN TYPE: Gap-up FAILED at supply, now compressing. 15m BAR-BY-BAR: B1 09:15: -73 RED (high 23,860 rejected, close 6% of range, vol 27M) B2 09:30: +34 GRN (low 23,728 absorbed, close 98% of range, hammer) B3 09:45: -22 RED (rejected 23,812, lower high) B4 10:00: -7 RED inside bar (coiling) STRUCTURE: Higher-low + Lower-high + dropping volume (27M->17M->13M->8M). Compression base 23,728-23,815. Pre-breakout coil. SHORT (15m close basis): - Trigger 23,728 (break of B2 / day low) - T1 23,695 | T2 23,665 (gap fill) | T3 23,605 - SL 23,815 LONG (15m reversal): - Trigger 23,815 (close above B3 high) - T1 23,860 | T2 23,900 | T3 23,950 - SL 23,755 KEY LEVELS VWAP 23,782 | Day H 23,860 | Day L 23,728 | Yest C 23,664 Supply 23,860-23,900 | Demand 23,665-23,695 NO-TRADE: inside 23,728-23,815 base. Not financial advice. Educational only.