First-hour volume & direction → day classification → pullback levels
Buy-up open — Big volume (20.26M) with a +0.45% 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 +0.88 pts above the FH high to 347.09. The 25% pullback to 346.51 and 50% pullback has triggered.
Key levels: Hold above 346.21 (FH High → support) = bullish continuation. A dip to 345.93 (50% PB) near the FH high is the secondary entry zone. Losing 341.03 (FH Low) flips the session bearish.