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HowShorted

How shorted is Duolingo, Inc.? DUOL

#332most shorted US stockof 3,805 ranked stocks, more shorted than 91%

14.05%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−2.14
5 reports (~10 weeks)
−1.92
days to cover
4.97
Aggregate net short position time series for Duolingo, 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 Duolingo, 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
5 Aug 202615.59% 31 Jul 202615.16% 14 Aug 2026−0.43
4 May 202616.20% 30 Apr 202616.71% 15 May 2026+0.51
26 Feb 202618.88% 13 Feb 202618.32% 27 Feb 2026−0.56
12 Jan 202613.93% 31 Dec 202516.08% 15 Jan 2026+2.15
5 Nov 202510.03% 31 Oct 202511.61% 14 Nov 2025+1.58
6 Aug 20255.40% 31 Jul 20256.60% 15 Aug 2025+1.20
1 May 20252.80% 30 Apr 20252.61% 15 May 2025−0.19
27 Feb 20253.27% 14 Feb 20252.72% 28 Feb 2025−0.55

Fails to deliver

The SEC's fails-to-deliver figure for DUOL: 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
200
8 Sep 2026
Highest in window
239,338
3 Feb 2026
Days with a balance
66
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Duolingo, 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 239K shares.

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Sector: Technology

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202614.05%−2.14
31 Aug 202616.19%+1.03
14 Aug 202615.16%−0.43
31 Jul 202615.59%−0.49
15 Jul 202616.08%+0.11
30 Jun 202615.97%−1.01
15 Jun 202616.98%+0.64
29 May 202616.34%−0.37
15 May 202616.71%+0.51
30 Apr 202616.20%−0.48
15 Apr 202616.68%−0.30
31 Mar 202616.98%+0.72
13 Mar 202616.26%−2.06
27 Feb 202618.32%−0.56
13 Feb 202618.88%+3.95
30 Jan 202614.93%−1.15
15 Jan 202616.08%+2.15
31 Dec 202513.93%+3.18
15 Dec 202510.75%−0.94
28 Nov 202511.69%+0.08
14 Nov 202511.61%+1.58
31 Oct 202510.03%+1.61
15 Oct 20258.42%+0.20
30 Sep 20258.22%+0.69
15 Sep 20257.53%+0.31
29 Aug 20257.22%+0.62
15 Aug 20256.60%+1.20
31 Jul 20255.40%+0.07
15 Jul 20255.33%+0.28
30 Jun 20255.05%+0.97
13 Jun 20254.08%+0.92
30 May 20253.16%+0.55
15 May 20252.61%−0.19
30 Apr 20252.80%−0.26
15 Apr 20253.06%−0.55
31 Mar 20253.61%+0.27
14 Mar 20253.34%+0.62
28 Feb 20252.72%−0.55
14 Feb 20253.27%−0.01
31 Jan 20253.28%+0.18
15 Jan 20253.10%+0.16
31 Dec 20242.94%+0.16
13 Dec 20242.78%−0.29
29 Nov 20243.07%−0.18
15 Nov 20243.25%−0.79
31 Oct 20244.04%−0.24
15 Oct 20244.28%−0.39
30 Sep 20244.67%−0.28
13 Sep 20244.95%−0.20
30 Aug 20245.15%−0.04
15 Aug 20245.19%+0.05
31 Jul 20245.14%+0.52
15 Jul 20244.62%−1.62
28 Jun 20246.24%−0.30
14 Jun 20246.54%+0.27
31 May 20246.27%+0.07
15 May 20246.20%−0.96
30 Apr 20247.16%+2.97
15 Apr 20244.19%−0.33
28 Mar 20244.52%−0.28
15 Mar 20244.80%+0.66
29 Feb 20244.14%−0.70
15 Feb 20244.84%−0.47
31 Jan 20245.31%+0.16
12 Jan 20245.15%+0.30
29 Dec 20234.85%−0.96
15 Dec 20235.81%+0.08
30 Nov 20235.73%+0.18
15 Nov 20235.55%−0.91
31 Oct 20236.46%+0.77
13 Oct 20235.69%+0.08
29 Sep 20235.61%+0.34
15 Sep 20235.27%+0.29
31 Aug 20234.98%−0.55
15 Aug 20235.53%+0.39
31 Jul 20235.14%−0.80
14 Jul 20235.94%+0.34
30 Jun 20235.60%+0.77
15 Jun 20234.83%−1.21
31 May 20236.04%−0.11
15 May 20236.15%+0.38
28 Apr 20235.77%0.00
14 Apr 20235.77%−0.10
31 Mar 20235.87%−0.25
15 Mar 20236.12%+0.75
28 Feb 20235.37%+0.36
15 Feb 20235.01%−0.08
31 Jan 20235.09%+0.45
13 Jan 20234.64%−0.77
30 Dec 20225.41%+0.46
15 Dec 20224.95%+0.23
30 Nov 20224.72%+0.13
15 Nov 20224.59%−0.20
31 Oct 20224.79%−0.60
14 Oct 20225.39%+0.08
30 Sep 20225.31%−0.04
15 Sep 20225.35%+0.51
31 Aug 20224.84%−0.80
15 Aug 20225.64%−1.24
29 Jul 20226.88%−0.47
15 Jul 20227.35%−1.39
30 Jun 20228.74%+2.31
15 Jun 20226.43%−0.87
31 May 20227.30%+1.47
13 May 20225.83%+0.14
29 Apr 20225.69%+0.70
14 Apr 20224.99%+0.33
31 Mar 20224.66%+0.25
15 Mar 20224.41%−0.82
28 Feb 20225.23%−1.22
15 Feb 20226.45%+0.59
31 Jan 20225.86%+0.28
14 Jan 20225.58%+1.17
31 Dec 20214.41%+0.43
15 Dec 20213.98%+0.92
30 Nov 20213.06%−0.91
15 Nov 20213.97%0.00
29 Oct 20213.97%+0.43
15 Oct 20213.54%+0.60
30 Sep 20212.94%+0.68
15 Sep 20212.26%+0.02
31 Aug 20212.24%+1.12
13 Aug 20211.12%–

Newest first. Scroll inside the table for earlier dates, back to 13 Aug 2021.

Frequently asked questions

How shorted is Duolingo, Inc. right now?
14.05% of Duolingo, Inc.'s (DUOL) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 332nd 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 DUOL'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 DUOL's days to cover?
4.97 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.