S&P 500 Large Volume Bursts Reach $3.0 billion


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S&P 500 is showing signs of institutional selling: Sell Imbalance sits at -$18.2 million

Following the Big Money in S&P 500 Stocks

So far in trading today, the S&P 500 ETF is unchanged. SPY stock last traded at $571.24. Large volume bursts in S&P 500 stocks reached 22.2 million shares worth a total of $3.0 billion in transactions. There was notable buy pressure in the Technology and Real Estate sectors. Overall, buy volume pressure and sell volume pressure were fairly similar during trading. There were 94 stocks that had more buy pressure on balance, and 95 stocks that had more sell pressure from large institutions. As a whole, there was a net negative -$18.2 million in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 66.6%, compared with 33.4% being transacted in the dark pool. To learn more about large volume trades, check out our help section.

Daily Chart: Large Volume Bursts Over Time

As you can see from the chart below, the most recent cumulative sell imbalance of -$18.2 million occurred at 2:00 PM. This also represented the largest sell imbalance for the day. The highest cumulative buy imbalance occurred at 12:30 PM, when the net buy hit +$116.8 million. The largest spike in imbalance came between 9:30 AM and 9:45 AM when the buy pressure outweighed the sell pressure by a 1.6 to 1 ratio.

Flow by Sector

Technology experienced the highest amount of dollar volume bursts of all the SPDR sectors, with buy dollar volume exceeding sell dollar volume by $132.0 million. 14 of the Technology stocks had positive dollar balance, versus 22 that were net negative.

Individual Stocks

OXY stock had the single biggest volume burst activity of all the S&P 500 stocks. Sell volume bursts exceeded buy volume by 2.8 million shares. As of this afternoon, the average trade price on sell volume was $51.11. Even though the sell pressure has been significant, the stock price has risen $0.23 on the day.