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HowShorted

How shorted is Vaxcyte, Inc.? PCVX

#575most shorted US stockof 3,805 ranked stocks, more shorted than 84%

10.84%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.75
5 reports (~10 weeks)
−1.26
days to cover
13.04
Aggregate net short position time series for Vaxcyte, 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 Vaxcyte, 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 202610.02% 31 Jul 20269.94% 14 Aug 2026−0.08
6 May 202610.80% 30 Apr 20269.55% 15 May 2026−1.25
24 Feb 202610.51% 13 Feb 202610.13% 27 Feb 2026−0.38
4 Nov 20256.55% 31 Oct 20257.13% 14 Nov 2025+0.58
6 Aug 202510.31% 31 Jul 20258.81% 15 Aug 2025−1.50
7 May 20259.66% 30 Apr 202510.46% 15 May 2025+0.80
25 Feb 202510.70% 14 Feb 20259.89% 28 Feb 2025−0.81
5 Nov 20248.00% 31 Oct 20247.77% 15 Nov 2024−0.23

Fails to deliver

The SEC's fails-to-deliver figure for PCVX: 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
208
10 Sep 2026
Highest in window
44,128
3 Oct 2025
Days with a balance
56
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Vaxcyte, 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 44K shares.

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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202610.84%+0.75
31 Aug 202610.09%+0.15
14 Aug 20269.94%−0.08
31 Jul 202610.02%+0.16
15 Jul 20269.86%−2.24
30 Jun 202612.10%+1.97
15 Jun 202610.13%+0.11
29 May 202610.02%+0.47
15 May 20269.55%−1.25
30 Apr 202610.80%−0.17
15 Apr 202610.97%+0.52
31 Mar 202610.45%+0.47
13 Mar 20269.98%−0.15
27 Feb 202610.13%−0.38
13 Feb 202610.51%+1.38
30 Jan 20269.13%−0.11
15 Jan 20269.24%+0.14
31 Dec 20259.10%+0.83
15 Dec 20258.27%+0.40
28 Nov 20257.87%+0.74
14 Nov 20257.13%+0.58
31 Oct 20256.55%−1.16
15 Oct 20257.71%−0.83
30 Sep 20258.54%−0.21
15 Sep 20258.75%−0.11
29 Aug 20258.86%+0.05
15 Aug 20258.81%−1.50
31 Jul 202510.31%−0.25
15 Jul 202510.56%−0.34
30 Jun 202510.90%+0.28
13 Jun 202510.62%+0.39
30 May 202510.23%−0.23
15 May 202510.46%+0.80
30 Apr 20259.66%−0.24
15 Apr 20259.90%+0.24
31 Mar 20259.66%−0.46
14 Mar 202510.12%+0.23
28 Feb 20259.89%−0.81
14 Feb 202510.70%−0.16
31 Jan 202510.86%−0.76
15 Jan 202511.62%+0.13
31 Dec 202411.49%+1.38
13 Dec 202410.11%+1.26
29 Nov 20248.85%+1.08
15 Nov 20247.77%−0.23
31 Oct 20248.00%−0.37
15 Oct 20248.37%−0.28
30 Sep 20248.65%−0.05
13 Sep 20248.70%−0.53
30 Aug 20249.23%−0.84
15 Aug 202410.07%−0.50
31 Jul 202410.57%−0.34
15 Jul 202410.91%+1.46
28 Jun 20249.45%+0.55
14 Jun 20248.90%+0.08
31 May 20248.82%+0.07
15 May 20248.75%−0.11
30 Apr 20248.86%+0.20
15 Apr 20248.66%−0.02
28 Mar 20248.68%−0.35
15 Mar 20249.03%+0.14
29 Feb 20248.89%−2.31
15 Feb 202411.20%+1.85
31 Jan 20249.35%+0.57
12 Jan 20248.78%+0.77
29 Dec 20238.01%+0.28
15 Dec 20237.73%+0.29
30 Nov 20237.44%−0.20
15 Nov 20237.64%−0.17
31 Oct 20237.81%+0.45
13 Oct 20237.36%−0.32
29 Sep 20237.68%−0.76
15 Sep 20238.44%+0.40
31 Aug 20238.04%−0.22
15 Aug 20238.26%+0.28
31 Jul 20237.98%−0.02
14 Jul 20238.00%+0.04
30 Jun 20237.96%+0.62
15 Jun 20237.34%−0.20
31 May 20237.54%+0.28
15 May 20237.26%−1.04
28 Apr 20238.30%−0.63
14 Apr 20238.93%+1.32
31 Mar 20237.61%+0.43
15 Mar 20237.18%+0.93
28 Feb 20236.25%+0.27
15 Feb 20235.98%+0.09
31 Jan 20235.89%+0.34
13 Jan 20235.55%−0.13
30 Dec 20225.68%+1.33
15 Dec 20224.35%+0.15
30 Nov 20224.20%−0.41
15 Nov 20224.61%−2.39
31 Oct 20227.00%+1.60
14 Oct 20225.40%+1.23
30 Sep 20224.17%+0.77
15 Sep 20223.40%+0.32
31 Aug 20223.08%−0.46
15 Aug 20223.54%+0.09
29 Jul 20223.45%−0.03
15 Jul 20223.48%+0.31
30 Jun 20223.17%+0.33
15 Jun 20222.84%−0.63
31 May 20223.47%+0.06
13 May 20223.41%−0.21
29 Apr 20223.62%+0.10
14 Apr 20223.52%−0.26
31 Mar 20223.78%−0.01
15 Mar 20223.79%−0.06
28 Feb 20223.85%+0.34
15 Feb 20223.51%+0.41
31 Jan 20223.10%+0.67
14 Jan 20222.43%+0.30
31 Dec 20212.13%−0.57
15 Dec 20212.70%+0.55
30 Nov 20212.15%−0.16
15 Nov 20212.31%−0.20
29 Oct 20212.51%+0.06
15 Oct 20212.45%−0.28
30 Sep 20212.73%−0.69
15 Sep 20213.42%−1.07
31 Aug 20214.49%−0.96
13 Aug 20215.45%+0.01
30 Jul 20215.44%−0.36
15 Jul 20215.80%−0.18
30 Jun 20215.98%−0.89
15 Jun 20216.87%−0.08
28 May 20216.95%−0.31
14 May 20217.26%−0.01
30 Apr 20217.27%−0.08
15 Apr 20217.35%−1.96
31 Mar 20219.31%+1.94
15 Mar 20217.37%−0.05
26 Feb 20217.42%+0.83
12 Feb 20216.59%+0.23
29 Jan 20216.36%+0.38
15 Jan 20215.98%+0.60
31 Dec 20205.38%+1.81
15 Dec 20203.57%+0.59
30 Nov 20202.98%+0.73
13 Nov 20202.25%+2.13
31 Aug 20200.12%+0.02
14 Aug 20200.10%–

Newest first. Scroll inside the table for earlier dates, back to 14 Aug 2020.

Frequently asked questions

How shorted is Vaxcyte, Inc. right now?
10.84% of Vaxcyte, Inc.'s (PCVX) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 575th 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 PCVX'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 PCVX's days to cover?
13.04 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.