IMSR Short Interest (August 31, 2026 Update)
Short interest for IMSR was 6.6M as of August 31, 2026, +5.5% from the prior report.
This page tracks IMSR short interest over time, including historical values, changes between reports, and days to cover.
Terrestrial Energy Inc. Common | IMSR | Nasdaq | Latest report: August 31, 2026
At the latest settlement date of August 31, 2026, Terrestrial Energy Inc. Common (IMSR) showed reported short interest of 6,581,856 shares. That compared with 6,239,551 shares in the prior report, a change of 342.3K shares, or +5.5%. The latest reported days to cover was 6.27, based on average daily volume of 1.0M.
The historical data currently tracked for IMSR includes 21 reported entries from October 31, 2025 to August 31, 2026. Over that span, reported short interest has ranged from 1.2M to 6.6M shares.
Extreme edge-case readings may reflect unusually low reported average volume.
| Settlement Date | Short Interest | Prior Short Interest | Change Shares | Change % | Average Daily Volume | Days to Cover |
|---|---|---|---|---|---|---|
| August 31, 2026 | 6,581,856 | 6,239,551 | 342.3K | +5.5% | 1.0M | 6.27 |
| August 14, 2026 | 6,239,551 | 5,824,372 | 415.2K | +7.1% | 1.3M | 4.65 |
| July 31, 2026 | 5,824,372 | 5,683,558 | 140.8K | +2.5% | 2.5M | 2.38 |
| July 15, 2026 | 5,683,558 | 5,978,828 | -295.3K | -4.9% | 1.8M | 3.1 |
| June 30, 2026 | 5,978,828 | 5,814,557 | 164.3K | +2.8% | 2.3M | 2.66 |
| June 15, 2026 | 5,814,557 | 4,779,175 | 1.0M | +21.7% | 3.3M | 1.76 |
| May 29, 2026 | 4,779,175 | 4,083,931 | 695.2K | +17.0% | 3.4M | 1.39 |
| May 15, 2026 | 4,083,931 | 3,443,602 | 640.3K | +18.6% | 3.4M | 1.19 |
| April 30, 2026 | 3,443,602 | 3,276,068 | 167.5K | +5.1% | 3.1M | 1.1 |
| April 15, 2026 | 3,276,068 | 3,255,139 | 20.9K | +0.6% | 1.5M | 2.16 |
| March 31, 2026 | 3,255,139 | 3,296,337 | -41.2K | -1.2% | 1.8M | 1.77 |
| March 13, 2026 | 3,296,337 | 3,686,500 | -390.2K | -10.6% | 1.2M | 2.81 |
| February 27, 2026 | 3,686,500 | 3,697,779 | -11.3K | -0.3% | 1.4M | 2.71 |
| February 13, 2026 | 3,697,779 | 3,089,469 | 608.3K | +19.7% | 2.0M | 1.83 |
| January 30, 2026 | 3,089,469 | 3,770,596 | -681.1K | -18.1% | 4.5M | 1 |
| January 15, 2026 | 3,770,596 | 3,024,640 | 746.0K | +24.7% | 5.8M | 1 |
| December 31, 2025 | 3,024,640 | 1,611,109 | 1.4M | +87.7% | 2.0M | 1.53 |
| December 15, 2025 | 1,611,109 | 1,224,234 | 386.9K | +31.6% | 1.5M | 1.08 |
| November 28, 2025 | 1,224,234 | 1,906,165 | -681.9K | -35.8% | 2.0M | 1 |
| November 14, 2025 | 1,906,165 | 2,558,429 | -652.3K | -25.5% | 1.8M | 1.07 |
| October 31, 2025 | 2,558,429 | 1,212,762 | 1.3M | +111.0% | 3.5M | 1 |