CLSK Short Volume
CleanSpark, Inc. (CLSK) operates in the Technology sector, specifically the Software - Application industry, with a market capitalization near $3.41B, listed on NASDAQ, employing roughly 256 people, carrying a beta of 3.72 to the broader market. CleanSpark, Inc. Led by S. Matthew Schultz, public since 2016-11-16.
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
- 2026-05-15
- Short Volume
- 4.4M
- Total Volume
- 7.8M
- Short %
- 56.97%
- 30-Day Avg Short %
- 48.51%
Showing 30 days of FINRA short volume data for CleanSpark, Inc..
Learn how short volume is reported and how to read the data →
CLSK most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| PUT | $13.00 | May 22, 2026 | 7.0K | 439 | 88.9% | $0.48 | $0.52 |
| PUT | $12.50 | May 22, 2026 | 4.3K | 1.7K | 90.2% | $0.28 | $0.33 |
| CALL | $18.00 | Jun 18, 2026 | 3.6K | 4.6K | 88.3% | $0.25 | $0.30 |
| CALL | $16.00 | May 22, 2026 | 3.5K | 2.2K | 92.0% | $0.06 | $0.08 |
| CALL | $14.00 | May 22, 2026 | 2.1K | 905 | 88.3% | $0.36 | $0.42 |
| CALL | $20.00 | Jan 15, 2027 | 2.1K | 19.7K | 87.9% | $2.00 | $2.27 |
| PUT | $10.00 | Jun 18, 2026 | 2.1K | 7.8K | 95.8% | $0.22 | $0.26 |
| CALL | $13.00 | Jun 18, 2026 | 1.9K | 4.0K | 83.9% | $1.50 | $1.56 |
| CALL | $18.00 | May 22, 2026 | 1.7K | 712 | 107.0% | $0.01 | $0.03 |
| CALL | $13.00 | Jan 15, 2027 | 1.7K | 715 | 88.2% | $3.85 | $4.15 |
Top 10 contracts from the ORATS-sourced nightly scan; ranked by volume within the broader S&P 500/400/600 + ETF universe.
Frequently asked CLSK short volume questions
- What is the daily CLSK short volume?
- As of May 15, 2026, CleanSpark, Inc. (CLSK) short volume is 4.4M shares against 7.8M total reported volume, or 56.97% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is CLSK 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 CLSK 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.