S&P 500 has seen increased institutional selling: Sell Imbalance hits -$166.8 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 $624.07. Large volume bursts in S&P 500 stocks reached 63.7 million shares worth a total of $8.6 billion in transactions. There was notable buy pressure in the Technology and Industrials sectors. Overall, sell volume pressure exceeded buy volume pressure by 4.2%. There were 116 stocks that had more buy pressure on balance, and 140 stocks that had more sell pressure from large institutions. As a whole, there was a net negative -$166.8 million in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 61.6%, compared with 38.4% 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 is -$166.8 million, however, the furthest sell imbalance for the day occurred at 1:15 PM, when the net sell dollar volume was -$314.8 million. The highest cumulative buy imbalance occurred at 11:45 AM, when the net buy hit +$204.2 million. The largest spike in imbalance came between 12:45 PM and 1:00 PM when the sell pressure surpassed the buy pressure by a 7.2 to 1 ratio.
Flow by Sector
Technology had the largest dollar volume bursts of all the SPDR sectors, with buy dollar volume exceeding sell dollar volume by $383.4 million. 26 of the Technology stocks had positive dollar balance, versus 23 that were net negative.
Individual Stocks
NVDA stock had the single biggest volume burst activity of all the S&P 500 stocks. Buy volume bursts exceeded sell volume by 349,038 shares. As of this afternoon, the average purchase price on buy volume was $171.44. The stock price increased $6.48, indicating strength following the trade.

