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HowShorted

How shorted is Vaxart, Inc? VXRT

7.44%
of shares outstanding reported short · settlement date 30 Jun 2025
vs previous report
−1.85
5 reports (~10 weeks)
+1.67
days to cover
5.75
Aggregate net short position time series for Vaxart, 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 Vaxart, 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
13 May 20255.29% 30 Apr 20256.29% 15 May 2025+1.00
21 Mar 20255.36% 14 Mar 20255.67% 31 Mar 2025+0.31
13 Nov 20244.96% 31 Oct 20245.04% 15 Nov 2024+0.08
8 Aug 20246.95% 31 Jul 20245.94% 15 Aug 2024−1.01
13 May 202410.62% 30 Apr 202410.70% 15 May 2024+0.08
14 Mar 20249.02% 29 Feb 20248.98% 15 Mar 2024−0.04
2 Nov 20239.30% 31 Oct 20238.27% 15 Nov 2023−1.03
3 Aug 202313.73% 31 Jul 202311.18% 15 Aug 2023−2.55

Fails to deliver

The SEC's fails-to-deliver figure for VXRT: 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
126
10 Sep 2026
Highest in window
111,891
22 Apr 2026
Days with a balance
41
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Vaxart, 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 112K shares.

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Sector: Healthcare · By year: 2020 · 2021 · 2022 · 2023 · 2024 · 2025

History

Full reported short interest history
Settlement dateShort %Change
30 Jun 20257.44%−1.85
13 Jun 20259.29%+2.85
30 May 20256.44%+0.15
15 May 20256.29%+1.00
30 Apr 20255.29%−0.48
15 Apr 20255.77%+0.10
31 Mar 20255.67%+0.31
14 Mar 20255.36%−0.48
28 Feb 20255.84%+0.85
14 Feb 20254.99%+0.11
31 Jan 20254.88%−0.23
15 Jan 20255.11%+0.02
31 Dec 20245.09%+0.13
13 Dec 20244.96%+0.04
29 Nov 20244.92%−0.12
15 Nov 20245.04%+0.08
31 Oct 20244.96%−0.20
15 Oct 20245.16%−0.15
30 Sep 20245.31%−0.25
13 Sep 20245.56%−0.04
30 Aug 20245.60%−0.34
15 Aug 20245.94%−1.01
31 Jul 20246.95%−0.17
15 Jul 20247.12%−0.90
28 Jun 20248.02%−3.48
14 Jun 202411.50%+0.62
31 May 202410.88%+0.18
15 May 202410.70%+0.08
30 Apr 202410.62%+0.07
15 Apr 202410.55%+0.66
28 Mar 20249.89%+0.91
15 Mar 20248.98%−0.04
29 Feb 20249.02%+0.69
15 Feb 20248.33%+1.02
31 Jan 20247.31%−0.24
12 Jan 20247.55%−0.20
29 Dec 20237.75%+0.30
15 Dec 20237.45%−0.27
30 Nov 20237.72%−0.55
15 Nov 20238.27%−1.03
31 Oct 20239.30%−1.48
13 Oct 202310.78%−0.33
29 Sep 202311.11%+0.19
15 Sep 202310.92%+0.08
31 Aug 202310.84%−0.34
15 Aug 202311.18%−2.55
31 Jul 202313.73%+1.05
14 Jul 202312.68%−0.14
30 Jun 202312.82%−3.16
15 Jun 202315.98%+0.53
31 May 202315.45%+1.65
15 May 202313.80%−0.19
28 Apr 202313.99%−1.04
14 Apr 202315.03%+0.15
31 Mar 202314.88%−1.07
15 Mar 202315.95%−0.92
28 Feb 202316.87%+0.25
15 Feb 202316.62%−0.17
31 Jan 202316.79%−0.15
13 Jan 202316.94%−0.40
30 Dec 202217.34%−0.72
15 Dec 202218.06%−0.56
30 Nov 202218.62%−0.15
15 Nov 202218.77%−0.23
31 Oct 202219.00%−0.37
14 Oct 202219.37%−0.80
30 Sep 202220.17%+1.20
15 Sep 202218.97%+0.69
31 Aug 202218.28%−0.06
15 Aug 202218.34%−0.53
29 Jul 202218.87%+1.37
15 Jul 202217.50%−0.36
30 Jun 202217.86%−0.51
15 Jun 202218.37%+0.37
31 May 202218.00%−0.38
13 May 202218.38%−0.22
29 Apr 202218.60%+0.55
14 Apr 202218.05%+0.35
31 Mar 202217.70%−0.87
15 Mar 202218.57%−0.47
28 Feb 202219.04%+0.25
15 Feb 202218.79%+0.71
31 Jan 202218.08%+0.30
14 Jan 202217.78%−0.32
31 Dec 202118.10%+1.31
15 Dec 202116.79%+0.61
30 Nov 202116.18%−0.15
15 Nov 202116.33%+0.19
29 Oct 202116.14%−1.26
15 Oct 202117.40%+2.04
30 Sep 202115.36%+2.13
15 Sep 202113.23%−0.93
31 Aug 202114.16%−2.41
13 Aug 202116.57%−0.88
30 Jul 202117.45%−2.88
15 Jul 202120.33%+0.93
30 Jun 202119.40%−0.35
15 Jun 202119.75%+0.18
28 May 202119.57%−1.51
14 May 202121.08%−1.62
30 Apr 202122.70%−0.69
15 Apr 202123.39%+1.57
31 Mar 202121.82%−1.75
15 Mar 202123.57%−0.30
26 Feb 202123.87%−1.26
12 Feb 202125.13%−2.88
29 Jan 202128.01%−2.36
15 Jan 202130.37%−0.28
31 Dec 202030.65%+5.07
15 Dec 202025.58%−1.09
30 Nov 202026.67%−2.59
13 Nov 202029.26%−0.37
30 Oct 202029.63%+5.16
15 Oct 202024.47%+1.79
30 Sep 202022.68%+6.72
15 Sep 202015.96%+3.66
31 Aug 202012.30%−0.37
14 Aug 202012.67%+11.82
15 Apr 20200.85%−0.97
31 Mar 20201.82%+1.67
15 Nov 20190.15%−0.82
31 Oct 20190.97%−0.84
15 Oct 20191.81%–

Newest first. Scroll inside the table for earlier dates, back to 15 Oct 2019.

Frequently asked questions

How shorted is Vaxart, Inc right now?
7.44% of Vaxart, Inc's (VXRT) shares outstanding were reported short for settlement date 30 Jun 2025, per FINRA's consolidated short interest report.
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 VXRT'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 VXRT's days to cover?
5.75 days for settlement date 30 Jun 2025: 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.