First-hour volume & direction → day classification → pullback levels
Normal day — First-hour volume (4.79M) was below the Big Volume threshold (5.06M), so no high-conviction directional signal. Mild bullish bias from the +0.65% FH move, but ~50/50 statistical edge.
Price broke above FH High (278.67) to 278.77. Pulled back through the 25% zone at 278.10.
Key levels: 278.67 above · 276.17 mid · 276.00 below. The FH range (276.00–278.67) is the day's reference frame.