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HowShorted

How shorted is C3.ai, Inc.? AI

#40most shorted US stockof 3,805 ranked stocks, more shorted than 98%

26.37%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−2.68
5 reports (~10 weeks)
−2.36
days to cover
6.93
Aggregate net short position time series for C3.ai, 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 C3.ai, 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
2 Sep 202629.05% 31 Aug 202626.37% 15 Sep 2026−2.68
3 Jun 202633.72% 29 May 202629.10% 15 Jun 2026−4.62
12 May 202632.18% 30 Apr 202632.44% 15 May 2026+0.26
25 Feb 202628.93% 13 Feb 202630.25% 27 Feb 2026+1.32
3 Dec 202527.30% 28 Nov 202526.99% 15 Dec 2025−0.31
3 Sep 202524.77% 29 Aug 202527.32% 15 Sep 2025+2.55
11 Aug 202517.60% 31 Jul 202524.32% 15 Aug 2025+6.72
28 May 202516.07% 15 May 202518.59% 30 May 2025+2.52

Fails to deliver

The SEC's fails-to-deliver figure for AI: 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.

Last balance on file
36,024
4 Sep 2026
Highest in window
851,021
2 Feb 2026
Days with a balance
129
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for C3.ai, 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 851K shares.

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Sector: Technology · By year: 2021 · 2022 · 2023 · 2024 · 2025 · 2026

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202626.37%−2.68
31 Aug 202629.05%−1.92
14 Aug 202630.97%+1.18
31 Jul 202629.79%+1.22
15 Jul 202628.57%−0.16
30 Jun 202628.73%−0.37
15 Jun 202629.10%−4.62
29 May 202633.72%+1.28
15 May 202632.44%+0.26
30 Apr 202632.18%+1.90
15 Apr 202630.28%+1.21
31 Mar 202629.07%+0.97
13 Mar 202628.10%−2.15
27 Feb 202630.25%+1.32
13 Feb 202628.93%−0.22
30 Jan 202629.15%+0.54
15 Jan 202628.61%+0.58
31 Dec 202528.03%+1.04
15 Dec 202526.99%−0.31
28 Nov 202527.30%−2.11
14 Nov 202529.41%+0.80
31 Oct 202528.61%−0.24
15 Oct 202528.85%−0.33
30 Sep 202529.18%+1.86
15 Sep 202527.32%+2.55
29 Aug 202524.77%+0.45
15 Aug 202524.32%+6.72
31 Jul 202517.60%−0.28
15 Jul 202517.88%−0.83
30 Jun 202518.71%+0.84
13 Jun 202517.87%−0.72
30 May 202518.59%+2.52
15 May 202516.07%−0.06
30 Apr 202516.13%−0.23
15 Apr 202516.36%−0.80
31 Mar 202517.16%+0.52
14 Mar 202516.64%−0.13
28 Feb 202516.77%+0.29
14 Feb 202516.48%−0.25
31 Jan 202516.73%−0.21
15 Jan 202516.94%+0.06
31 Dec 202416.88%+0.03
13 Dec 202416.85%−2.65
29 Nov 202419.50%+1.58
15 Nov 202417.92%−0.30
31 Oct 202418.22%−1.11
15 Oct 202419.33%−1.03
30 Sep 202420.36%+0.28
13 Sep 202420.08%−2.23
30 Aug 202422.31%+1.98
15 Aug 202420.33%−0.56
31 Jul 202420.89%−0.86
15 Jul 202421.75%+0.18
28 Jun 202421.57%−2.31
14 Jun 202423.88%−1.41
31 May 202425.29%−2.96
15 May 202428.25%+0.88
30 Apr 202427.37%+0.33
15 Apr 202427.04%+0.95
28 Mar 202426.09%+0.25
15 Mar 202425.84%−2.29
29 Feb 202428.13%−0.68
15 Feb 202428.81%−4.00
31 Jan 202432.81%+0.89
12 Jan 202431.92%−0.73
29 Dec 202332.65%+2.35
15 Dec 202330.30%+0.56
30 Nov 202329.74%+0.03
15 Nov 202329.71%−1.02
31 Oct 202330.73%−1.40
13 Oct 202332.13%+0.42
29 Sep 202331.71%−1.43
15 Sep 202333.14%+2.76
31 Aug 202330.38%+1.87
15 Aug 202328.51%+1.90
31 Jul 202326.61%−1.76
14 Jul 202328.37%−2.66
30 Jun 202331.03%+2.48
15 Jun 202328.55%−0.26
31 May 202328.81%+5.42
15 May 202323.39%−2.40
28 Apr 202325.79%−2.01
14 Apr 202327.80%+5.70
31 Mar 202322.10%−0.01
15 Mar 202322.11%+1.08
28 Feb 202321.03%+13.87
31 Jan 20237.16%−0.46
13 Jan 20237.62%−0.19
30 Dec 20227.81%−0.02
15 Dec 20227.83%−0.73
30 Nov 20228.56%−0.06
15 Nov 20228.62%−1.01
31 Oct 20229.63%−1.64
14 Oct 202211.27%−0.30
30 Sep 202211.57%+0.53
15 Sep 202211.04%−0.67
31 Aug 202211.71%+0.86
15 Aug 202210.85%−1.02
29 Jul 202211.87%−0.40
15 Jul 202212.27%−0.22
30 Jun 202212.49%−1.51
15 Jun 202214.00%+0.77
31 May 202213.23%−2.27
13 May 202215.50%−0.57
29 Apr 202216.07%+0.51
14 Apr 202215.56%+0.30
31 Mar 202215.26%+0.99
15 Mar 202214.27%+1.64
28 Feb 202212.63%+0.77
15 Feb 202211.86%−1.31
31 Jan 202213.17%−0.49
14 Jan 202213.66%−0.83
31 Dec 202114.49%−0.56
15 Dec 202115.05%+1.87
30 Nov 202113.18%+0.81
15 Nov 202112.37%−0.78
29 Oct 202113.15%−0.09
15 Oct 202113.24%−0.13
30 Sep 202113.37%+1.78
15 Sep 202111.59%+1.40
31 Aug 202110.19%+2.34
13 Aug 20217.85%+1.44
30 Jul 20216.41%+1.08
15 Jul 20215.33%−0.31
30 Jun 20215.64%−1.18
15 Jun 20216.82%−3.38
28 May 202110.20%−0.16
14 May 202110.36%+1.35
30 Apr 20219.01%−0.72
15 Apr 20219.73%+0.40
31 Mar 20219.33%+2.88
15 Mar 20216.45%+2.22
26 Feb 20214.23%–

Newest first. Scroll inside the table for earlier dates, back to 26 Feb 2021.

Frequently asked questions

How shorted is C3.ai, Inc. right now?
26.37% of C3.ai, Inc.'s (AI) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 40th 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 AI'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 AI's days to cover?
6.93 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.