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HowShorted

How shorted is CarMax Inc.? KMX

#1,179most shorted US stockof 3,805 ranked stocks, more shorted than 69%

6.92%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.96
5 reports (~10 weeks)
−1.96
days to cover
6.33
Aggregate net short position time series for CarMax Inc.

Markers along the chart's base: ▲ results announced (an 8-K reporting results was filed) ▲ quarterly or annual report filed. Dates are SEC filing dates; hover a point to see events since the previous settlement.

Days to cover

FINRA's own figure: reported shares short divided by the stock's average daily trading volume, published alongside each settlement. It expresses the short position in days of typical trading rather than as a percentage of the company; the two can move differently.

Aggregate net short position time series for CarMax Inc. days to cover

Short interest around results

For each results announcement (an 8-K reporting results, by its SEC filing date), the FINRA settlement before it and the first one after. Settlements fall twice a month, so the two figures can sit up to a month apart and much else changes in between: this shows what was reported, not why.

Reported short interest before and after each results announcement
Results filedSettlement beforeSettlement afterChange
17 Jun 202610.52% 15 Jun 20268.88% 30 Jun 2026−1.64
14 Apr 202610.64% 31 Mar 202610.06% 15 Apr 2026−0.58
18 Dec 20259.02% 15 Dec 202511.02% 31 Dec 2025+2.00
6 Nov 202511.32% 31 Oct 20259.99% 14 Nov 2025−1.33
25 Sep 20259.78% 15 Sep 20259.75% 30 Sep 2025−0.03
20 Jun 20259.00% 13 Jun 20259.41% 30 Jun 2025+0.41
10 Apr 20258.09% 31 Mar 20257.10% 15 Apr 2025−0.99
19 Dec 20248.57% 13 Dec 20248.50% 31 Dec 2024−0.07

Fails to deliver

The SEC's fails-to-deliver figure for KMX: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Latest balance
502
14 Sep 2026
Highest in window
1,463,117
7 Nov 2025
Days with a balance
55
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for CarMax Inc. fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 1.5M shares.

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Sector: Consumer retail

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20266.92%−0.96
31 Aug 20267.88%−1.00
14 Aug 20268.88%−0.84
31 Jul 20269.72%+1.60
15 Jul 20268.12%−0.76
30 Jun 20268.88%−1.64
15 Jun 202610.52%−0.15
29 May 202610.67%−1.39
15 May 202612.06%+1.47
30 Apr 202610.59%+0.53
15 Apr 202610.06%−0.58
31 Mar 202610.64%−1.29
13 Mar 202611.93%+1.34
27 Feb 202610.59%+0.37
13 Feb 202610.22%+0.11
30 Jan 202610.11%−1.63
15 Jan 202611.74%+0.72
31 Dec 202511.02%+2.00
15 Dec 20259.02%−1.29
28 Nov 202510.31%+0.32
14 Nov 20259.99%−1.33
31 Oct 202511.32%+1.47
15 Oct 20259.85%+0.10
30 Sep 20259.75%−0.03
15 Sep 20259.78%+0.06
29 Aug 20259.72%−0.21
15 Aug 20259.93%+0.43
31 Jul 20259.50%+0.32
15 Jul 20259.18%−0.23
30 Jun 20259.41%+0.41
13 Jun 20259.00%+0.58
30 May 20258.42%+0.29
15 May 20258.13%+0.88
30 Apr 20257.25%+0.15
15 Apr 20257.10%−0.99
31 Mar 20258.09%+0.20
14 Mar 20257.89%+0.36
28 Feb 20257.53%−0.28
14 Feb 20257.81%−0.23
31 Jan 20258.04%−0.60
15 Jan 20258.64%+0.14
31 Dec 20248.50%−0.07
13 Dec 20248.57%−1.14
29 Nov 20249.71%−0.35
15 Nov 202410.06%+0.06
31 Oct 202410.00%−1.29
15 Oct 202411.29%+0.20
30 Sep 202411.09%+0.91
13 Sep 202410.18%−0.63
30 Aug 202410.81%−0.22
15 Aug 202411.03%−0.54
31 Jul 202411.57%−0.37
15 Jul 202411.94%+0.36
28 Jun 202411.58%−0.85
14 Jun 202412.43%−0.01
31 May 202412.44%−0.04
15 May 202412.48%−0.03
30 Apr 202412.51%−0.89
15 Apr 202413.40%+1.29
28 Mar 202412.11%+0.48
15 Mar 202411.63%−0.44
29 Feb 202412.07%+0.52
15 Feb 202411.55%−0.37
31 Jan 202411.92%+0.25
12 Jan 202411.67%+0.07
29 Dec 202311.60%−0.03
15 Dec 202311.63%−0.49
30 Nov 202312.12%+1.04
15 Nov 202311.08%+0.65
31 Oct 202310.43%−0.06
13 Oct 202310.49%−0.19
29 Sep 202310.68%−0.74
15 Sep 202311.42%−0.14
31 Aug 202311.56%+0.51
15 Aug 202311.05%−0.38
31 Jul 202311.43%+0.09
14 Jul 202311.34%−0.59
30 Jun 202311.93%−1.68
15 Jun 202313.61%−0.70
31 May 202314.31%+0.33
15 May 202313.98%−0.42
28 Apr 202314.40%−0.19
14 Apr 202314.59%−0.02
31 Mar 202314.61%+0.01
15 Mar 202314.60%−0.25
28 Feb 202314.85%+0.84
15 Feb 202314.01%−0.37
31 Jan 202314.38%+0.57
13 Jan 202313.81%+0.57
30 Dec 202213.24%+1.54
15 Dec 202211.70%+0.66
30 Nov 202211.04%+1.00
15 Nov 202210.04%+1.55
31 Oct 20228.49%−0.42
14 Oct 20228.91%+0.72
30 Sep 20228.19%−0.17
15 Sep 20228.36%+0.05
31 Aug 20228.31%+0.23
15 Aug 20228.08%+0.13
29 Jul 20227.95%−0.48
15 Jul 20228.43%+0.68
30 Jun 20227.75%+0.71
15 Jun 20227.04%+0.11
31 May 20226.93%−1.28
13 May 20228.21%−0.16
29 Apr 20228.37%−0.48
14 Apr 20228.85%+0.46
31 Mar 20228.39%+1.60
15 Mar 20226.79%+0.51
28 Feb 20226.28%+0.44
15 Feb 20225.84%+1.17
31 Jan 20224.67%+0.96
14 Jan 20223.71%+0.46
31 Dec 20213.25%+0.12
15 Dec 20213.13%+0.13
30 Nov 20213.00%+0.01
15 Nov 20212.99%−0.14
29 Oct 20213.13%+0.15
15 Oct 20212.98%+0.26
30 Sep 20212.72%−0.48
15 Sep 20213.20%−0.13
31 Aug 20213.33%+0.07
13 Aug 20213.26%+0.17
30 Jul 20213.09%−0.48
15 Jul 20213.57%−0.36
30 Jun 20213.93%+0.81
15 Jun 20213.12%+0.52
28 May 20212.60%+0.42
14 May 20212.18%−0.13
30 Apr 20212.31%−0.14
15 Apr 20212.45%−0.04
31 Mar 20212.49%−0.66
15 Mar 20213.15%−0.32
26 Feb 20213.47%−0.07
12 Feb 20213.54%−0.77
29 Jan 20214.31%−1.52
15 Jan 20215.83%−0.19
31 Dec 20206.02%+0.05
15 Dec 20205.97%+0.20
30 Nov 20205.77%+0.15
13 Nov 20205.62%−0.14
30 Oct 20205.76%−0.07
15 Oct 20205.83%−0.27
30 Sep 20206.10%−0.58
15 Sep 20206.68%−0.59
31 Aug 20207.27%−0.56
14 Aug 20207.83%+0.09
31 Jul 20207.74%−0.46
15 Jul 20208.20%−0.27
30 Jun 20208.47%−0.39
15 Jun 20208.86%−0.50
29 May 20209.36%−0.01
15 May 20209.37%−0.71
30 Apr 202010.08%−0.01
15 Apr 202010.09%+1.25
31 Mar 20208.84%−0.46
13 Mar 20209.30%+0.43
28 Feb 20208.87%−0.48
14 Feb 20209.35%−0.51
31 Jan 20209.86%+0.09
15 Jan 20209.77%−0.24
31 Dec 201910.01%−0.56
13 Dec 201910.57%−0.66
29 Nov 201911.23%−0.22
15 Nov 201911.45%−0.50
31 Oct 201911.95%−0.57
15 Oct 201912.52%+0.16
30 Sep 201912.36%−0.15
13 Sep 201912.51%−0.40
30 Aug 201912.91%+0.48
15 Aug 201912.43%+0.96
31 Jul 201911.47%+0.30
15 Jul 201911.17%−0.52
28 Jun 201911.69%−0.50
14 Jun 201912.19%−0.59
31 May 201912.78%+3.01
15 May 20199.77%−0.43
30 Apr 201910.20%−1.45
15 Apr 201911.65%+1.17
29 Mar 201910.48%+0.13
15 Mar 201910.35%+0.95
28 Feb 20199.40%+0.74
15 Feb 20198.66%+0.94
31 Jan 20197.72%+0.66
15 Jan 20197.06%+0.19
31 Dec 20186.87%+0.62
14 Dec 20186.25%−0.41
30 Nov 20186.66%−0.30
15 Nov 20186.96%−0.50
31 Oct 20187.46%+0.85
15 Oct 20186.61%−0.43
28 Sep 20187.04%+0.08
14 Sep 20186.96%+0.44
31 Aug 20186.52%−0.08
15 Aug 20186.60%−0.08
31 Jul 20186.68%−0.04
13 Jul 20186.72%−0.70
29 Jun 20187.42%−2.03
15 Jun 20189.45%−0.14
31 May 20189.59%+0.23
15 May 20189.36%+0.37
30 Apr 20188.99%+0.57
13 Apr 20188.42%+0.65
29 Mar 20187.77%–

Newest first. Scroll inside the table for earlier dates, back to 29 Mar 2018.

Frequently asked questions

How shorted is CarMax Inc. right now?
6.92% of CarMax Inc.'s (KMX) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 1,179th most shorted US stock, out of 3,805 we rank.
What does this number include?
FINRA member firms must report their short positions in all US equities twice a month; FINRA consolidates them per security. We divide that official share count by the company's shares outstanding from its SEC filings. This is the regulatory figure, not a daily estimate.
Why does it only update twice a month?
US short interest is reported for settlement on the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. That cadence is set by regulation; no daily official figure exists.
Is this KMX's short float?
No. This is short interest as a percentage of shares outstanding, the count in the company's SEC filings. "Short float" divides the same FINRA short count by the public float, which excludes closely held shares, so it comes out higher for the same company. We publish no float estimates: the float is not a regulatory figure.
What is KMX's days to cover?
6.33 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume. It is published in the same FINRA file and shown verbatim; we hold no volume data ourselves.
Which funds are short?
US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.