S&P 500 is indicating institutional buying: Buy Imbalance sits at +$1.3 billion
Following the Big Money in S&P 500 Stocks
So far in trading today, the S&P 500 ETF is up 0.7%. SPY stock last traded at $747.91. Large volume bursts in S&P 500 stocks reached 51.4 million shares worth a total of $9.3 billion in transactions. There was notable buy pressure in the Technology and Consumer Discretionary sectors. Overall, buy volume pressure exceeded sell volume pressure by a 1.3 to 1 ratio. There were 153 stocks that had more buy pressure on balance, and 118 stocks that had more sell pressure from large institutions. As a whole, there was a net positive +$1.3 billion in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 67.8%, compared with 32.2% 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 buy imbalance of +$1.3 billion occurred at 2:00 PM. This also represented the peak buy imbalance for the day. The lowest cumulative sell imbalance occurred at 10:15 AM, when the net sell reached -$243.9 million. The largest spike in imbalance came between 10:30 AM and 10:45 AM when the buy pressure outweighed the sell pressure by a 5.3 to 1 ratio.
Flow by Sector
Technology experienced the most dollar volume bursts of all the SPDR sectors, with buy dollar volume exceeding sell dollar volume by $536.3 million. 38 of the Technology stocks had positive dollar balance, versus 25 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 outpaced buy volume by 1.1 million shares. As of this afternoon, the average trade price on sell volume was $217.37. The stock price decreased $2.80, indicating weakness following the trade.

