Institutional Ownership
Vertex Pharmaceuticals Inc
CUSIP 92532F100COMVRTXQ1 2026
Shares Short
4.99M
As of Jul 15, 2026
Days to Cover
3.10
Short shares ÷ avg daily volume
Change vs Prior
+1.0%
vs previous settlement
Avg Daily Volume
1.61M
FINRA reported ADV
Short Interest History
17 settlements on record · FINRA consolidated
Higher short interest is bearish: increases show red, decreases green.
| Settlement | Shares Short | Prior | Change | Avg Daily Vol | Days to Cover |
|---|---|---|---|---|---|
| Jul 15, 2026 | 4.99M | 4.94M | +1.0% | 1.61M | 3.10 |
| Jun 30, 2026 | 4.94M | 4.62M | +7.0% | 2.45M | 2.01 |
| Jun 15, 2026 | 4.62M | 4.49M | +2.8% | 1.21M | 3.82 |
| May 29, 2026 | 4.49M | 4.46M | +0.7% | 1.41M | 3.19 |
| May 15, 2026 | 4.46M | 4.17M | +6.9% | 1.22M | 3.64 |
| Apr 30, 2026 | 4.17M | 4.34M | -3.8% | 967.6K | 4.31 |
| Apr 15, 2026 | 4.34M | 4.02M | +7.8% | 1.15M | 3.78 |
| Mar 31, 2026 | 4.02M | 4.13M | -2.6% | 1.49M | 2.69 |
| Mar 13, 2026 | 4.13M | 4.43M | -6.9% | 1.45M | 2.85 |
| Feb 27, 2026 | 4.43M | 4.47M | -0.7% | 1.26M | 3.51 |
| Feb 13, 2026 | 4.47M | 4.42M | +1.0% | 1.68M | 2.66 |
| Jan 30, 2026 | 4.42M | 4.42M | -0.0% | 1.59M | 2.79 |