First-hour volume & direction → day classification → pullback levels
Buy-up open — Big volume (47.63M) with a +2.95% first-hour move. The opening thrust signals institutional demand. Post-FH pullbacks are buying opportunities as long as the FH high holds as support.
Price extended +0.62 pts above the FH high to 397.27. The 25% pullback to 394.10 and 50% pullback has triggered.
Key levels: Hold above 396.65 (FH High → support) = bullish continuation. A dip to 390.93 (50% PB) near the FH high is the secondary entry zone. Losing 383.84 (FH Low) flips the session bearish.