First-hour volume & direction → day classification → pullback levels
Buy-up open — Big volume (39.57M) with a +0.40% 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 +4.56 pts above the FH high to 715.25. The 25% pullback to 714.34 and 50% pullback has triggered.
Key levels: Hold above 710.69 (FH High → support) = bullish continuation. A dip to 713.44 (50% PB) near the FH high is the secondary entry zone. Losing 705.58 (FH Low) flips the session bearish.