SPY Short Volume
State Street SPDR S&P 500 ETF (SPY) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $829.92B, listed on AMEX, carrying a beta of 1.01 to the broader market. SPY is the best-recognized and oldest US listed ETF and typically tops rankings for largest AUM and greatest trading volume. public since 1993-01-22.
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
- 2026-10-06
- Short Volume
- 7.3M
- Total Volume
- 12.4M
- Short %
- 58.91%
- 30-Day Avg Short %
- 57.39%
Showing 30 days of FINRA short volume data for State Street SPDR S&P 500 ETF.
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 | $780.00 | Oct 7, 2026 | 107.0K | 3.5K | 9.4% | $1.35 | $1.36 |
| PUT | $500.00 | Mar 19, 2027 | 102.8K | 8.8K | 36.3% | $1.63 | $1.64 |
| PUT | $655.00 | Mar 19, 2027 | 101.8K | 2.5K | 23.5% | $6.04 | $6.06 |
| PUT | $780.00 | Oct 7, 2026 | 101.2K | 515 | 9.4% | $1.75 | $1.76 |
| CALL | $790.00 | Oct 14, 2026 | 88.7K | 801 | 9.4% | $1.12 | $1.13 |
| PUT | $779.00 | Oct 7, 2026 | 83.8K | 542 | 9.6% | $1.29 | $1.30 |
| CALL | $781.00 | Oct 7, 2026 | 82.0K | 2.9K | 9.2% | $0.91 | $0.92 |
| PUT | $725.00 | Oct 30, 2026 | 79.2K | 84.0K | 18.7% | $0.94 | $0.95 |
| PUT | $740.00 | Oct 30, 2026 | 78.2K | 7.8K | 16.7% | $1.53 | $1.55 |
| CALL | $782.00 | Oct 7, 2026 | 58.7K | 6.2K | 9.0% | $0.59 | $0.60 |
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 Oct 6, 2026, State Street SPDR S&P 500 ETF (SPY) short volume is 7.3M shares against 12.4M total reported volume, or 58.91% 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.