SPY Short Volume
State Street SPDR S&P 500 ETF Trust (SPY) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $765.22B, listed on AMEX, carrying a beta of 1.00 to the broader market. The State Street SPDR S&P 500 ETF Trust seeks to provide investment results that, before expenses, correspond generally to the price and yield performance of the S&P 500 Index (the “Index”)The S&P 500 Index is a diversified large cap U. public since 1993-01-29.
Short volume measures the number of shares sold short on a given day as reported by FINRA. Tracking short volume relative to total volume helps identify unusual bearish sentiment or short-squeeze potential.
- Latest Date
- 2026-05-19
- Short Volume
- 10.5M
- Total Volume
- 17.7M
- Short %
- 59.45%
- 30-Day Avg Short %
- 52.70%
Showing 30 days of FINRA short volume data for State Street SPDR S&P 500 ETF Trust.
Learn how short volume is reported and how to read the data →
SPY most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $740.00 | May 19, 2026 | 78.8K | 2.4K | 14.5% | $1.35 | $1.37 |
| CALL | $820.00 | Mar 19, 2027 | 75.3K | 74.5K | 15.0% | $18.49 | $18.64 |
| PUT | $736.00 | May 19, 2026 | 69.8K | 1.8K | 15.6% | $1.57 | $1.58 |
| PUT | $710.00 | May 29, 2026 | 66.7K | 126.4K | 19.6% | $1.47 | $1.49 |
| CALL | $738.00 | May 19, 2026 | 64.2K | 1.1K | 15.0% | $2.29 | $2.30 |
| PUT | $735.00 | May 19, 2026 | 61.6K | 4.8K | 15.9% | $1.26 | $1.28 |
| PUT | $675.00 | May 29, 2026 | 58.3K | 61.7K | 26.3% | $0.30 | $0.31 |
| PUT | $700.00 | Jun 5, 2026 | 56.9K | 35.3K | 20.4% | $1.82 | $1.85 |
| PUT | $725.00 | Jun 5, 2026 | 56.4K | 4.4K | 16.9% | $5.27 | $5.31 |
| CALL | $737.00 | May 19, 2026 | 55.4K | 871 | 15.3% | $2.84 | $2.88 |
Top 10 contracts from the institutional-grade nightly options scan; ranked by volume within the broader S&P 500/400/600 + ETF universe.
Frequently asked SPY short volume questions
- What is the daily SPY short volume?
- As of May 19, 2026, State Street SPDR S&P 500 ETF Trust (SPY) short volume is 10.5M shares against 17.7M total reported volume, or 59.45% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is SPY short volume reported?
- FINRA publishes the Daily Short Sale Volume File for trades reported to FINRA TRFs and the FINRA/Nasdaq ADF on a T+1 basis. The headline figure is the count of shares that printed at the short-sale or short-exempt tick across all reporting venues for the symbol; each exchange separately publishes its own daily short-sale data file.
- What does SPY short volume tell options traders?
- Daily short-sale flow is one input that helps disambiguate dealer-hedging activity from directional bear flow when the chain shows fresh customer call inventory. It is not a clean MM-only proxy: the headline number mixes directional shorting, options-MM delta-hedging, ETF-creation arbitrage, and convertible-arb hedging. Cross-check against gamma-exposure and OI changes for a cleaner read.