KMX
CarMax Inc.
stockNYSE
Market OpenOct 12, 2026 3:24:20 PM EDT
50.65USD-3.726%(-1.96)768,458
50.63Bid50.67Ask0.04SpreadAs of 2026-09-30, there were 10,762,114 shares short with a short interest of 8.21%.
KMX Short Interest - Official
Short Interest
KMX Short Position Change - Official
Short Position Change
KMX Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | 8.21 | 10,762,114 | 2.39 | +946,255 | +9.64 | 141,942,807 | 131,141,463 |
| 2026-09-15 | 7.48 | 9,815,859 | 6.33 | -1,370,936 | -12.25 | 141,911,096 | 131,141,463 |
| 2026-08-31 | 8.53 | 11,186,795 | 6.43 | -1,418,806 | -11.26 | 141,911,096 | 131,141,463 |
| 2026-08-14 | 9.61 | 12,605,601 | 7.23 | -1,191,725 | -8.64 | 141,911,096 | 131,141,463 |
| 2026-07-31 | 10.52 | 13,797,326 | 4.83 | +2,270,876 | +19.70 | 141,911,096 | 131,141,463 |
| 2026-07-15 | 8.79 | 11,526,450 | 4.08 | -1,073,175 | -8.52 | 141,911,096 | 131,141,463 |
| 2026-06-30 | 9.61 | 12,599,625 | 2.52 | -2,320,340 | -15.55 | 141,911,096 | 131,176,941 |
| 2026-06-15 | 11.38 | 14,919,965 | 4.37 | -2,185,968 | -12.78 | 141,820,715 | 131,145,870 |
| 2026-05-15 | 12.85 | 17,105,933 | 6.44 | +2,087,838 | +13.90 | 141,820,715 | 133,149,796 |
| 2026-04-30 | 10.28 | 15,018,095 | 4.90 | +756,838 | +5.31 | 141,820,715 | 146,063,637 |
| 2026-04-15 | 9.76 | 14,261,257 | 3.14 | -824,486 | -5.47 | 141,799,070 | 146,063,637 |
| 2026-03-31 | 10.33 | 15,085,743 | 4.90 | -1,826,842 | -10.80 | 141,796,641 | 146,063,637 |
| 2026-03-13 | 11.58 | 16,912,585 | 5.26 | +1,895,699 | +12.62 | 141,796,641 | 146,063,637 |
| 2026-02-27 | 10.28 | 15,016,886 | 4.26 | +528,055 | +3.64 | 141,796,641 | 146,063,637 |
| 2026-02-13 | 9.92 | 14,488,831 | 4.43 | +150,780 | +1.05 | 141,796,641 | 146,063,637 |
| 2026-01-30 | 9.82 | 14,338,051 | 4.50 | -2,315,420 | -13.90 | 141,796,641 | 146,063,637 |
| 2026-01-15 | 11.40 | 16,653,471 | 3.94 | +1,022,008 | +6.54 | 141,796,641 | 146,063,637 |
| 2025-12-31 | 10.70 | 15,631,463 | 3.19 | +2,381,635 | +17.97 | 141,796,641 | 146,063,637 |
| 2025-12-15 | 9.07 | 13,249,828 | 3.99 | -1,882,971 | -12.44 | 146,845,043 | 146,063,637 |
| 2025-11-28 | 10.37 | 15,132,799 | 3.47 | +457,427 | +3.12 | 146,845,043 | 145,969,847 |
| 2025-11-14 | 10.05 | 14,675,372 | 1.83 | -1,954,499 | -11.75 | 146,845,043 | 145,987,468 |
| 2025-10-31 | 11.39 | 16,629,871 | 2.51 | +2,162,014 | +14.94 | 146,845,043 | 145,987,468 |
| 2025-10-15 | 9.90 | 14,467,857 | 3.48 | +155,622 | +1.09 | 146,845,043 | 146,084,196 |
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.