BLDR short interest
Builders FirstSource Inc. · Basic Materials · Construction Materials · settlement date 2026-09-30
| Shares short | 9,165,569 |
|---|---|
| Change vs prior report | 258,494 (+2.9%) |
| Change over six months | +29.4% |
| Days to cover | 1.94 (sector: 2.35) |
| Average daily volume | 4,723,820 |
| Rank in Basic Materials | #224 of 278 by days to cover |
BLDR short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 9,165,569 | +2.9% | 1.94 | 4,723,820 |
| 2026-09-15 | 8,907,075 | +13.8% | 3.37 | 2,642,881 |
| 2026-08-31 | 7,829,223 | +7.8% | 4.38 | 1,789,115 |
| 2026-08-14 | 7,264,682 | -9.3% | 3.75 | 1,938,857 |
| 2026-07-31 | 8,013,450 | +11.3% | 3.05 | 2,627,706 |
| 2026-07-15 | 7,200,190 | -5.3% | 3.61 | 1,994,731 |
| 2026-06-30 | 7,603,336 | -4.2% | 2.87 | 2,651,727 |
| 2026-06-15 | 7,936,719 | -9.8% | 3.57 | 2,222,803 |
| 2026-05-29 | 8,797,863 | +1.3% | 2.59 | 3,394,283 |
| 2026-05-15 | 8,682,445 | +7.7% | 2.85 | 3,043,729 |
| 2026-04-30 | 8,059,726 | +11.5% | 3.14 | 2,569,008 |
| 2026-04-15 | 7,230,744 | +2.1% | 3.75 | 1,928,317 |
| 2026-03-31 | 7,084,828 | +7.3% | 3.28 | 2,159,622 |
| 2026-03-13 | 6,603,493 | +18.4% | 2.19 | 3,009,664 |
| 2026-02-27 | 5,576,445 | +18.7% | 2.63 | 2,122,556 |
| 2026-02-13 | 4,698,707 | +4.2% | 1.73 | 2,711,184 |
| 2026-01-30 | 4,508,345 | -5.2% | 2.42 | 1,863,688 |
| 2026-01-15 | 4,753,876 | -0.2% | 2.12 | 2,244,318 |
| 2025-12-31 | 4,765,888 | +4.1% | 3.21 | 1,486,785 |
| 2025-12-15 | 4,578,394 | -10.6% | 2.55 | 1,792,883 |
| 2025-11-28 | 5,122,241 | -8.1% | 1.97 | 2,596,118 |
| 2025-11-14 | 5,573,309 | -5.3% | 2.20 | 2,529,470 |
| 2025-10-31 | 5,884,781 | -6.2% | 3.27 | 1,799,172 |
| 2025-10-15 | 6,275,268 | -8.5% | 3.71 | 1,690,007 |
| 2025-09-30 | 6,856,227 | -14.5% | 3.14 | 2,186,982 |
import finzdata as yf
yf.Ticker("BLDR").short_interest # every report since 2017
yf.Client().short_interest(["BLDR"], start="2018-01-01")Basic Materials short interest · BLDR price history · Who owns BLDR · All short interest