The primary phase of Main Force accumulation occurred around the 14:25:00 period (Row 18, Volume: 918,679). This high-volume spike successfully drove the price up from the low 454.10s to 454.76, immediately reversing the existing bearish momentum (MACD was deeply negative prior to this candle) and initiating the subsequent multi-hour rally that peaked near 455.67. This accumulation was followed by a massive, ambiguous 10-million share volume event at 15:35:00 (Row 4), which absorbed liquidity but capped the rally, signaling a potential shift from accumulation to distribution or profit-taking at the session highs.