S&P 500 has seen increased institutional selling: Sell Imbalance sits at -$910.4 million
Following the Big Money in S&P 500 Stocks
So far in trading today, the S&P 500 ETF is down 1.2%. SPY stock last traded at $668.45. Large volume bursts in S&P 500 stocks reached 49.6 million shares worth a total of $8.0 billion in transactions. There was notable buy pressure in the Energy and Materials sectors. Overall, sell volume pressure exceeded buy volume pressure by a 1.3 to 1 ratio. There were 151 stocks that had more buy pressure on balance, and 166 stocks that had more sell pressure from large institutions. As a whole, there was a net negative -$910.4 million in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 57.7%, compared with 42.3% 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 -$910.4 million, however, the furthest sell imbalance for the day occurred at 11:15 AM, when the net sell dollar volume was -$1.2 billion. The largest spike in imbalance came between 9:45 AM and 10:00 AM when the sell pressure surpassed the buy pressure by a 4.8 to 1 ratio.
Flow by Sector
Technology had the biggest dollar volume bursts of all the SPDR sectors, with sell dollar volume exceeding buy dollar volume by $615.0 million. 27 of the Technology stocks had positive dollar balance, versus 26 that were net negative.
Individual Stocks
NVDA stock had the single biggest volume burst activity of all the S&P 500 stocks. Sell volume bursts exceeded buy volume by 285,071 shares. As of this afternoon, the average trade price on sell volume was $183.00. The stock has fallen $2.40, indicating weakness following the trade.

