On October 14, 2024, the S&P 500 Index (SPX) reached its 46th all-time high (ATH) amid a notably low trading volume. The session recorded 9.47 billion shares traded, marking it as the third slowest volume day of the year, with a notional value of $465 billion, which is the eighth slowest. The SPX options market showed significant call stacking at levels 5775, 5790, and 5800, with further call dominance observed at 5810, 5825, 5850, and 5870/75. Additionally, the SPY ETF experienced its lowest trading volume since July. Analysts noted that the recent all-time high was achieved despite a deceleration in trading volume, attributed to the holiday period.