S&P 500 is showing signs of institutional buying: Buy Imbalance sits at +$575.4 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 $587.06. Large volume bursts in S&P 500 stocks reached 48.4 million shares worth a total of $7.2 billion in transactions. There was notable buy pressure in the Technology and Communication Services sectors. Overall, buy volume pressure surpassed sell volume pressure by a 1.2 to 1 ratio. There were 129 stocks that had more buy pressure on balance, and 139 stocks that had more sell pressure from large institutions. As a whole, there was a net positive +$575.4 million in dollar volume trades. A greater amount of the trading volume occurred on lit exchanges, at 60.9%, compared with 39.1% 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 buy imbalance is +$575.4 million, however, the peak buy imbalance for the day occurred at 1:00 PM, when the net buy dollar volume was +$1.4 billion. The largest spike in imbalance came between 1:15 PM and 1:30 PM when the sell pressure surpassed the buy pressure by a 16.4 to 1 ratio.
Flow by Sector
Technology had the most dollar volume bursts of all the SPDR sectors, with buy dollar volume exceeding sell dollar volume by $337.6 million. 30 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 surpassed sell volume by 2.5 million shares. As of this afternoon, the average purchase price on buy volume was $135.74. Despite the buy pressure, the stock has dropped $0.79 on the day.

