Comfort Systems USA Inc. short interest
Short interest in Comfort Systems USA Inc. was 910,248 shares at the 31 August 2026 settlement, down 0.5% on the previous settlement, with 2.21 days to cover at an average daily volume of 412,116 shares, as reported to FINRA.
| Settlement | Shares short | Change | Average daily volume | Days to cover |
|---|---|---|---|---|
| 31 August 2026 | 910,248 | -0.5% | 412,116 | 2.21 |
| 14 August 2026 | 915,049 | +31.5% | 378,680 | 2.42 |
| 31 July 2026 | 695,921 | -17.1% | 621,477 | 1.12 |
| 15 July 2026 | 839,258 | +12.4% | 434,788 | 1.93 |
| 30 June 2026 | 746,501 | -5.1% | 617,687 | 1.21 |
| 15 June 2026 | 786,903 | -4.7% | 462,637 | 1.70 |
| 29 May 2026 | 825,373 | -8.2% | 433,080 | 1.91 |
| 15 May 2026 | 898,803 | +18.1% | 383,894 | 2.34 |
| 30 April 2026 | 760,735 | +0.0% | 450,774 | 1.69 |
| 15 April 2026 | 760,531 | +22.4% | 335,079 | 2.27 |
| 31 March 2026 | 621,334 | -7.1% | 454,739 | 1.37 |
| 13 March 2026 | 669,099 | +2.5% | 439,698 | 1.52 |
FINRA publishes consolidated short interest twice a month, about ten days after each settlement. Days to cover is shares short over average daily volume. Short interest as a share of the float is not shown: the float is not in the public record.
Source
FINRA equity short interest data, the public dataset.
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