SPDR S&P 500 ETF Trust (SPY) Short Interest Ratio & Short Volume

The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. SPY shares currently have a short interest ratio of 2.4. Learn More on SPDR S&P 500 ETF Trust's short interest ratio.

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of SPDR S&P 500 ETF Trust: Galaxy Group Investments LLC, Hsbc Holdings PLC, Corient Private Wealth LLC, OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC , Corecam Pte. Ltd., Alpine Global Management LLC, and Mariner Investment Group LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 11.70% of SPDR S&P 500 ETF Trust's floating shares are currently sold short.

SPDR S&P 500 ETF Trust saw a decline in short interest in the month of April. As of April 30th, there was short interest totaling 119,797,329 shares, a decline of 4.2% from the previous total of 125,003,596 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment.

11.70% of SPDR S&P 500 ETF Trust's shares are currently sold short. Here is how the short interest of companies compare to SPDR S&P 500 ETF Trust: iShares Core S&P 500 ETF (1.33%), Vanguard S&P 500 ETF (0.35%), Invesco QQQ (9.11%), Vanguard Growth ETF (0.68%), Vanguard Value ETF (0.11%), State Street SPDR Portfolio S&P 500 ETF (0.50%), iShares Russell 1000 Growth ETF (0.60%), Invesco NASDAQ 100 ETF (0.78%), Invesco S&P 500 Equal Weight ETF (6.78%), iShares S&P 500 Growth ETF (0.41%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($86.09 billion), Invesco QQQ ($39.89 billion), iShares Russell 2000 ETF ($26.13 billion), Western Digital Corporation ($12.66 billion), Salesforce Inc. ($12.29 billion), Sandisk Corporation ($11.87 billion), SPDR S&P Biotech ETF ($9.82 billion), Lumentum Holdings Inc. ($8.51 billion), iShares 20+ Year Treasury Bond ETF ($7.76 billion), and Bloom Energy Corporation ($7.40 billion). View all of the most shorted stocks.

Short selling SPY is an investing strategy that aims to generate trading profit from SPDR S&P 500 ETF Trust as its price is falling. SPY shares are trading up $2.92 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit.

A short squeeze for SPDR S&P 500 ETF Trust occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of SPY, which in turn drives the price of the stock up even further.

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including SPY, twice per month. The most recent reporting period available is April, 30 2026.