S&P 500 is showing signs of institutional selling: Sell Imbalance reaches -$545.6 million
Following the Big Money in S&P 500 Stocks
So far in trading today, the S&P 500 ETF is down 1.0%. SPY stock last traded at $676.21. Large volume bursts in S&P 500 stocks reached 64.4 million shares worth a total of $8.4 billion in transactions. There was notable buy pressure in the Health Care and Industrials sectors. Overall, sell volume pressure exceeded buy volume pressure by 14.9%. There were 147 stocks that had more buy pressure on balance, and 137 stocks that had more sell pressure from large institutions. As a whole, there was a net negative -$545.6 million in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 59.9%, compared with 40.1% 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 is -$545.6 million, however, the furthest sell imbalance for the day occurred at 1:45 PM, when the net sell dollar volume was -$566.1 million. The highest cumulative buy imbalance occurred at 10:45 AM, when the net buy hit +$496.7 million. The largest spike in imbalance came between 12:15 PM and 12:30 PM when the sell pressure surpassed the buy pressure by a 2.5 to 1 ratio.
Flow by Sector
Technology saw the most dollar volume bursts of all the SPDR sectors, with sell dollar volume exceeding buy dollar volume by $524.2 million. 26 of the Technology stocks had positive dollar balance, versus 29 that were net negative.
Individual Stocks
PFE stock had the single biggest volume burst activity of all the S&P 500 stocks. Buy volume bursts surpassed sell volume by 1.2 million shares. As of this afternoon, the average purchase price on buy volume was $24.83. Despite the buy pressure, the stock has dropped $0.40 on the day.

