KMX · Carmax Inc

$61.29 -0.82 (-1.32%) At close · Aug 31

S&P 600 member Russell 1000 member Rebalance outlook locked

Market Cap

$8.81B

141.91M

Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.

KMX Short Interest Forecast

Equibles' model estimates 12,642,896 shares sold short for the August 31, 2026 settlement, +0.3% versus the latest reported position. This model prediction uses FINRA data through August 21, 2026; FINRA's official release is expected September 10, 2026.

Model estimate

Expected Aug 31 short interest

as of Aug 21

12,642,896 +0.3% vs reported

The latest estimate appears in the chart below. Official release expected Sep 10. Methodology

Short Squeeze Score

65/100

Short interest 8.9% of shares — P88 Days to cover 7.2 — P82 Price vs VWAP +15.8% — P89 Short-volume trend -6.7% — P27 Short interest change -8.6% — P28 Worst FTD 0.00% of shares — P21

Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-08-14). Weighted mean of the available factors (short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, fails-to-deliver 10%) plus catalyst boosts (price spike, volume surge, earnings within days), capped at +20 and clamped to 100.

1M 3M 6M 1Y 5Y All

Short Interest History

Settlement Date	Current Position	Previous Position	Change	Avg Daily Volume	Days to Cover
2026-09-15 Scheduled FINRA publishes Sep 24	—	—	—	—	—
2026-08-31 Scheduled FINRA publishes Sep 10	—	—	—	—	—
2026-08-14	12,605,601	13,797,326	-1,191,725	1,744,410	7.23
2026-07-31	13,797,326	11,526,450	+2,270,876	2,859,395	4.83
2026-07-15	11,526,450	12,599,625	-1,073,175	2,824,566	4.08
2026-06-30	12,599,625	14,919,965	-2,320,340	5,004,174	2.52
2026-06-15	14,919,965	15,131,814	-211,849	3,414,908	4.37
2026-05-29	15,131,814	17,105,933	-1,974,119	3,036,183	4.98
2026-05-15	17,105,933	15,018,095	+2,087,838	2,657,607	6.44
2026-04-30	15,018,095	14,261,257	+756,838	3,064,050	4.90
2026-04-15	14,261,257	15,085,743	-824,486	4,537,962	3.14
2026-03-31	15,085,743	16,912,585	-1,826,842	3,077,332	4.90
2026-03-13	16,912,585	15,016,886	+1,895,699	3,212,988	5.26
2026-02-27	15,016,886	14,488,831	+528,055	3,527,041	4.26
2026-02-13	14,488,831	14,338,051	+150,780	3,270,902	4.43
2026-01-30	14,338,051	16,653,471	-2,315,420	3,187,316	4.50
2026-01-15	16,653,471	15,631,463	+1,022,008	4,223,143	3.94
2025-12-31	15,631,463	13,249,828	+2,381,635	4,898,008	3.19
2025-12-15	13,249,828	15,132,799	-1,882,971	3,322,196	3.99
2025-11-28	15,132,799	14,675,372	+457,427	4,356,207	3.47
2025-11-14	14,675,372	16,629,871	-1,954,499	8,007,649	1.83
2025-10-31	16,629,871	14,467,857	+2,162,014	6,617,985	2.51
2025-10-15	14,467,857	14,312,235	+155,622	4,158,634	3.48
2025-09-30	14,312,235	14,938,233	-625,998	6,947,888	2.06
2025-09-15	14,938,233	14,835,041	+103,192	2,755,320	5.42

Full FINRA short interest reporting calendar

Showing 1–23 of 23 settlements

Key facts CIK 1170010 CUSIP 143130102 13F (30d) 414 filings 398 filers Visit website Investor relations