Market-on-Close Imbalances Show Positive Readings for Major Indexes
Market-on-close order imbalances reached positive territory for the S&P 500, Nasdaq 100, and Dow 30. The figures indicate more buy orders than sell orders ahead of the closing auction.
thehindu.comMarket-on-close order imbalances turned positive across major U.S. equity indexes on May 21, 2026. The S&P 500 recorded a positive imbalance of 1,214 million dollars. A smaller positive imbalance of 29 million dollars appeared for the group of seven large-capitalization technology stocks.
These figures represent the net difference between buy and sell market-on-close orders submitted before the final auction. Positive values indicate excess buy interest that may influence closing prices upward if the imbalance persists. m. Eastern close.
The data is released periodically throughout the final hour of trading.
Key Facts
Potential Impact
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Positive imbalances may support upward pressure on closing prices for the affected indexes.
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