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HowShorted

How shorted is AAR Corp.? AIR

#2,058most shorted US stockof 3,805 ranked stocks, more shorted than 45%

3.98%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.25
5 reports (~10 weeks)
+0.12
days to cover
4.70
Aggregate net short position time series for AAR Corp.

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 AAR Corp. 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
21 Jul 20263.55% 15 Jul 20263.31% 31 Jul 2026−0.24
24 Mar 20262.93% 13 Mar 20263.21% 31 Mar 2026+0.28
6 Jan 20263.02% 31 Dec 20253.51% 15 Jan 2026+0.49
23 Sep 20252.66% 15 Sep 20253.08% 30 Sep 2025+0.42
16 Jul 20252.31% 15 Jul 20252.10% 31 Jul 2025−0.21
27 Mar 20251.79% 14 Mar 20252.48% 31 Mar 2025+0.69
7 Jan 20252.21% 31 Dec 20242.32% 15 Jan 2025+0.11
23 Sep 20242.09% 13 Sep 20242.14% 30 Sep 2024+0.05

Fails to deliver

The SEC's fails-to-deliver figure for AIR: 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
1,824
14 Sep 2026
Highest in window
201,853
18 Aug 2026
Days with a balance
43
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for AAR Corp. 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 202K shares.

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Sector: Industrials

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20263.98%+0.25
31 Aug 20263.73%+0.34
14 Aug 20263.39%+0.08
31 Jul 20263.31%−0.24
15 Jul 20263.55%−0.31
30 Jun 20263.86%+0.68
15 Jun 20263.18%+0.09
29 May 20263.09%+0.20
15 May 20262.89%−0.05
30 Apr 20262.94%+0.08
15 Apr 20262.86%−0.35
31 Mar 20263.21%+0.28
13 Mar 20262.93%−0.02
27 Feb 20262.95%−0.24
13 Feb 20263.19%+0.41
30 Jan 20262.78%−0.73
15 Jan 20263.51%+0.49
31 Dec 20253.02%−0.03
15 Dec 20253.05%−0.08
28 Nov 20253.13%+0.12
14 Nov 20253.01%−0.27
31 Oct 20253.28%+0.14
15 Oct 20253.14%+0.06
30 Sep 20253.08%+0.42
15 Sep 20252.66%+0.06
29 Aug 20252.60%+0.38
15 Aug 20252.22%+0.12
31 Jul 20252.10%−0.21
15 Jul 20252.31%0.00
30 Jun 20252.31%+0.31
13 Jun 20252.00%+0.24
30 May 20251.76%−0.23
15 May 20251.99%+0.13
30 Apr 20251.86%−0.24
15 Apr 20252.10%−0.38
31 Mar 20252.48%+0.69
14 Mar 20251.79%+0.08
28 Feb 20251.71%−0.07
14 Feb 20251.78%−0.13
31 Jan 20251.91%−0.41
15 Jan 20252.32%+0.11
31 Dec 20242.21%+0.49
13 Dec 20241.72%+0.19
29 Nov 20241.53%+0.01
15 Nov 20241.52%−0.05
31 Oct 20241.57%−0.40
15 Oct 20241.97%−0.17
30 Sep 20242.14%+0.05
13 Sep 20242.09%−0.09
30 Aug 20242.18%−0.06
15 Aug 20242.24%+0.04
31 Jul 20242.20%−0.04
15 Jul 20242.24%+0.18
28 Jun 20242.06%−0.58
14 Jun 20242.64%+0.18
31 May 20242.46%−0.02
15 May 20242.48%−0.17
30 Apr 20242.65%+0.14
15 Apr 20242.51%−0.19
28 Mar 20242.70%+0.15
15 Mar 20242.55%+0.52
29 Feb 20242.03%−0.27
15 Feb 20242.30%+0.13
31 Jan 20242.17%+0.34
12 Jan 20241.83%+0.34
29 Dec 20231.49%−0.71
15 Dec 20232.20%+0.12
30 Nov 20232.08%+0.14
15 Nov 20231.94%+0.25
31 Oct 20231.69%−0.11
13 Oct 20231.80%+0.01
29 Sep 20231.79%+0.36
15 Sep 20231.43%+0.21
31 Aug 20231.22%+0.01
15 Aug 20231.21%−0.12
31 Jul 20231.33%−0.41
14 Jul 20231.74%−0.01
30 Jun 20231.75%−0.26
15 Jun 20232.01%+0.03
31 May 20231.98%−0.17
15 May 20232.15%−0.15
28 Apr 20232.30%−0.09
14 Apr 20232.39%−0.07
31 Mar 20232.46%−0.64
15 Mar 20233.10%−0.16
28 Feb 20233.26%0.00
15 Feb 20233.26%+0.17
31 Jan 20233.09%+0.02
13 Jan 20233.07%−0.37
30 Dec 20223.44%−0.14
15 Dec 20223.58%+0.15
30 Nov 20223.43%−0.02
15 Nov 20223.45%−0.33
31 Oct 20223.78%−0.67
14 Oct 20224.45%−0.17
30 Sep 20224.62%−1.23
15 Sep 20225.85%−0.09
31 Aug 20225.94%−0.22
15 Aug 20226.16%−0.48
29 Jul 20226.64%−0.76
15 Jul 20227.40%+0.78
30 Jun 20226.62%+1.30
15 Jun 20225.32%+0.97
31 May 20224.35%+0.28
13 May 20224.07%−0.10
29 Apr 20224.17%−0.03
14 Apr 20224.20%−1.12
31 Mar 20225.32%−0.08
15 Mar 20225.40%−0.24
28 Feb 20225.64%−0.15
15 Feb 20225.79%+0.53
31 Jan 20225.26%−0.84
14 Jan 20226.10%+0.33
31 Dec 20215.77%−0.69
15 Dec 20216.46%+0.29
30 Nov 20216.17%+0.06
15 Nov 20216.11%−0.20
29 Oct 20216.31%+0.33
15 Oct 20215.98%−0.30
30 Sep 20216.28%−0.11
15 Sep 20216.39%+0.26
31 Aug 20216.13%+0.68
13 Aug 20215.45%−0.08
30 Jul 20215.53%+0.81
15 Jul 20214.72%+0.32
30 Jun 20214.40%0.00
15 Jun 20214.40%+0.61
28 May 20213.79%+0.34
14 May 20213.45%+0.51
30 Apr 20212.94%+0.33
15 Apr 20212.61%−0.10
31 Mar 20212.71%−0.09
15 Mar 20212.80%+0.12
26 Feb 20212.68%−0.22
12 Feb 20212.90%−0.54
29 Jan 20213.44%−0.32
15 Jan 20213.76%+0.08
31 Dec 20203.68%−0.55
15 Dec 20204.23%+0.76
30 Nov 20203.47%−0.10
13 Nov 20203.57%−0.01
30 Oct 20203.58%−0.14
15 Oct 20203.72%+0.20
30 Sep 20203.52%−0.48
15 Sep 20204.00%−0.20
31 Aug 20204.20%−0.15
14 Aug 20204.35%−0.34
31 Jul 20204.69%+0.82
15 Jul 20203.87%−0.39
30 Jun 20204.26%+0.01
15 Jun 20204.25%+0.46
29 May 20203.79%+0.04
15 May 20203.75%+0.49
30 Apr 20203.26%−0.33
15 Apr 20203.59%+0.65
31 Mar 20202.94%−0.29
13 Mar 20203.23%−0.73
28 Feb 20203.96%+0.04
14 Feb 20203.92%+0.19
31 Jan 20203.73%+0.02
15 Jan 20203.71%−0.12
31 Dec 20193.83%+0.06
13 Dec 20193.77%+0.25
29 Nov 20193.52%+0.07
15 Nov 20193.45%+0.02
31 Oct 20193.43%−0.36
15 Oct 20193.79%−0.55
30 Sep 20194.34%+0.11
13 Sep 20194.23%−0.06
30 Aug 20194.29%−0.16
15 Aug 20194.45%−0.24
31 Jul 20194.69%−0.01
15 Jul 20194.70%+0.13
28 Jun 20194.57%+0.08
14 Jun 20194.49%−0.16
31 May 20194.65%+0.47
15 May 20194.18%+0.05
30 Apr 20194.13%0.00
15 Apr 20194.13%+0.05
29 Mar 20194.08%+0.83
15 Mar 20193.25%−0.29
28 Feb 20193.54%+0.07
15 Feb 20193.47%+0.85
31 Jan 20192.62%−0.02
15 Jan 20192.64%−0.16
31 Dec 20182.80%+0.34
14 Dec 20182.46%+0.09
30 Nov 20182.37%0.00
15 Nov 20182.37%−0.03
31 Oct 20182.40%+0.81
15 Oct 20181.59%+0.12
28 Sep 20181.47%−0.08
14 Sep 20181.55%+0.05
31 Aug 20181.50%−0.42
15 Aug 20181.92%−0.30
31 Jul 20182.22%−0.33
13 Jul 20182.55%−0.27
29 Jun 20182.82%−0.76
15 Jun 20183.58%+0.83
31 May 20182.75%−0.20
15 May 20182.95%+0.06
30 Apr 20182.89%+0.16
13 Apr 20182.73%−0.55
29 Mar 20183.28%−0.26
15 Mar 20183.54%+0.15
28 Feb 20183.39%+0.05
15 Feb 20183.34%+0.15
31 Jan 20183.19%+0.19
12 Jan 20183.00%+0.57
29 Dec 20172.43%–

Newest first. Scroll inside the table for earlier dates, back to 29 Dec 2017.

Frequently asked questions

How shorted is AAR Corp. right now?
3.98% of AAR Corp.'s (AIR) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 2,058th 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 AIR'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 AIR's days to cover?
4.70 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.