SPY: Stocks with Huge Volume Spikes


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S&P 500 is showing signs of institutional buying: Buy Imbalance sits at +$524.2 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 $590.26. Large volume bursts in S&P 500 stocks reached 50.4 million shares worth a total of $6.5 billion in transactions. There was notable buy pressure in the Technology and Consumer Discretionary sectors. Overall, buy volume pressure surpassed sell volume pressure by a 1.2 to 1 ratio. There were 117 stocks that had more buy pressure on balance, and 121 stocks that had more sell pressure from large institutions. As a whole, there was a net positive +$524.2 million in dollar volume trades. A larger portion of the trading volume matched up in the dark pool, with 54.8% of the large volume transactions being made off-exchange, while only 45.2% was traded on lit exchanges. 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 +$524.2 million occurred at 2:00 PM. This also represented the peak buy imbalance for the day. The largest spike in imbalance came between 10:30 AM and 10:45 AM when the buy pressure outweighed the sell pressure by a 2.4 to 1 ratio.

Flow by Sector

Consumer Discretionary experienced the most dollar volume bursts of all the SPDR sectors, with buy dollar volume exceeding sell dollar volume by $281.6 million. 15 of the Consumer Discretionary stocks had positive dollar balance, versus 13 that were net negative.

Individual Stocks

SMCI stock had the single biggest volume burst activity of all the S&P 500 stocks. Sell volume bursts outpaced buy volume by 14,617 shares. As of this afternoon, the average trade price on sell volume was $27.37. Even though the sell pressure has been significant, the stock price has risen $6.65 on the day.