OLN Short Volume
Olin Corporation (OLN) operates in the Basic Materials sector, specifically the Chemicals industry, with a market capitalization near $2.18B, listed on NYSE, employing roughly 7,849 people, carrying a beta of 1.20 to the broader market. Olin Corporation is a global producer and supplier of chemical products, serving markets across the United States, Europe, and internationally. Led by Kenneth Todd Lane, public since 1987-12-30.
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
- 2026-08-14
- Short Volume
- 398.5K
- Total Volume
- 918.1K
- Short %
- 43.41%
- 30-Day Avg Short %
- 57.84%
Showing 30 days of FINRA short volume data for Olin Corporation.
Learn how short volume is reported and how to read the data →
OLN most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $17.50 | Aug 21, 2026 | 0 | 161 | 842.5% | $1.35 | $1.85 |
| PUT | $17.50 | Aug 21, 2026 | 17 | 1.2K | 842.5% | $0.05 | $0.10 |
| CALL | $20.00 | Aug 21, 2026 | 87 | 613 | 231.5% | $0.10 | $0.20 |
| PUT | $20.00 | Aug 21, 2026 | 2 | 2.2K | 231.5% | $1.00 | $1.45 |
Top 4 contracts from the institutional-grade nightly options scan; ranked by volume within the broader S&P 500/400/600 + ETF universe.
Frequently asked OLN short volume questions
- What is the daily OLN short volume?
- As of Aug 14, 2026, Olin Corporation (OLN) short volume is 398.5K shares against 918.1K total reported volume, or 43.41% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is OLN 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 OLN 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.