Institutional Ownership
Mastec Inc
CUSIP 576323109COMMTZQ1 2026
Shares Short
4.24M
As of Jul 15, 2026
Days to Cover
4.25
Short shares ÷ avg daily volume
Change vs Prior
-3.8%
vs previous settlement
Avg Daily Volume
997.0K
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 | 4.24M | 4.40M | -3.8% | 997.0K | 4.25 |
| Jun 30, 2026 | 4.40M | 3.68M | +19.6% | 1.38M | 3.20 |
| Jun 15, 2026 | 3.68M | 3.33M | +10.5% | 1.04M | 3.53 |
| May 29, 2026 | 3.33M | 3.24M | +3.0% | 1.41M | 2.36 |
| May 15, 2026 | 3.24M | 3.11M | +4.1% | 1.12M | 2.89 |
| Apr 30, 2026 | 3.11M | 3.01M | +3.1% | 849.9K | 3.66 |
| Apr 15, 2026 | 3.01M | 2.83M | +6.3% | 656.1K | 4.59 |
| Mar 31, 2026 | 2.83M | 2.56M | +10.5% | 1.06M | 2.67 |
| Mar 13, 2026 | 2.56M | 2.57M | -0.2% | 1.09M | 2.35 |
| Feb 27, 2026 | 2.57M | 2.46M | +4.6% | 1.12M | 2.29 |
| Feb 13, 2026 | 2.46M | 2.82M | -12.9% | 943.3K | 2.60 |
| Jan 30, 2026 | 2.82M | 3.03M | -7.1% | 659.3K | 4.28 |