TENB
Tenable Holdings, Inc.
stockNASDAQ
At CloseOct 2, 2026 3:59:59 PM EDT
36.86USD+2.077%(+0.75)2,044,897
Pre-marketOct 2, 2026 9:05:30 AM EDT
35.44USD-1.850%(-0.67)
After-hoursOct 2, 2026 4:09:30 PM EDT
36.91USD+0.136%(+0.05)
As of 2026-09-15, there were 18,181,258 shares short with a short interest of 16.73%.
TENB Short Interest - Official
Short Interest
TENB Short Position Change - Official
Short Position Change
TENB Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | 16.73 | 18,181,258 | 3.03 | +2,997,640 | +19.74 | 110,139,983 | 108,688,604 |
| 2026-08-31 | 13.97 | 15,183,618 | 3.30 | +4,683,393 | +44.60 | 110,139,983 | 108,688,604 |
| 2026-08-14 | 9.66 | 10,500,225 | 3.63 | +306,568 | +3.01 | 110,139,983 | 108,688,604 |
| 2026-07-31 | 9.38 | 10,193,657 | 2.68 | -434,882 | -4.09 | 110,271,973 | 108,688,604 |
| 2026-07-15 | 9.77 | 10,628,539 | 2.77 | -471,971 | -4.25 | 110,271,973 | 108,777,788 |
| 2026-06-30 | 10.20 | 11,100,510 | 3.23 | -419,467 | -3.64 | 110,271,973 | 108,777,788 |
| 2026-06-15 | 10.59 | 11,519,977 | 3.37 | -4,066,159 | -26.09 | 110,271,973 | 108,781,096 |
| 2026-05-15 | 14.31 | 15,586,136 | 4.98 | +1,377,890 | +9.70 | 110,271,973 | 108,906,806 |
| 2026-04-30 | 12.03 | 14,208,246 | 4.07 | -2,181,713 | -13.31 | 114,530,327 | 118,142,469 |
| 2026-04-15 | 13.87 | 16,389,959 | 4.58 | +1,682,860 | +11.44 | 114,887,618 | 118,142,469 |
| 2026-03-31 | 12.45 | 14,707,099 | 4.75 | +5,315,635 | +56.60 | 114,887,618 | 118,142,469 |
| 2026-03-13 | 7.95 | 9,391,464 | 4.10 | +2,552,941 | +37.33 | 114,887,618 | 118,142,469 |
| 2026-02-27 | 5.79 | 6,838,523 | 2.32 | +886,134 | +14.89 | 118,450,000 | 118,142,469 |
| 2026-02-13 | 5.04 | 5,952,389 | 1.41 | -821,325 | -12.13 | 119,344,266 | 118,142,469 |
| 2026-01-30 | 5.73 | 6,773,714 | 3.58 | +1,241,492 | +22.44 | 119,344,266 | 118,142,469 |
| 2026-01-15 | 4.68 | 5,532,222 | 3.65 | +578,401 | +11.68 | 119,344,266 | 118,142,469 |
| 2025-12-31 | 4.19 | 4,953,821 | 3.06 | -321,658 | -6.10 | 119,344,266 | 118,142,469 |
| 2025-12-15 | 4.47 | 5,275,479 | 4.06 | -376,924 | -6.67 | 119,344,266 | 118,142,469 |
| 2025-11-28 | 4.78 | 5,652,403 | 5.59 | +220,330 | +4.06 | 119,344,266 | 118,142,469 |
| 2025-11-14 | 4.60 | 5,432,073 | 4.63 | +238,583 | +4.59 | 119,344,266 | 118,173,499 |
| 2025-10-31 | 4.37 | 5,193,490 | 4.18 | +14,946 | +0.29 | 120,034,000 | 118,873,271 |
| 2025-10-15 | 4.32 | 5,178,544 | 4.32 | +266,580 | +5.43 | 121,094,958 | 119,925,181 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.