Skip to content
HowShorted

How shorted is BridgeBio Pharma, Inc.? BBIO

#552most shorted US stockof 3,805 ranked stocks, more shorted than 85%

11.02%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.16
5 reports (~10 weeks)
−1.29
days to cover
10.54
Aggregate net short position time series for BridgeBio Pharma, 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 BridgeBio Pharma, 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
10 Aug 202611.92% 31 Jul 202611.93% 14 Aug 2026+0.01
7 May 202612.27% 30 Apr 202612.34% 15 May 2026+0.07
24 Feb 202610.92% 13 Feb 202611.33% 27 Feb 2026+0.41
12 Jan 20268.93% 31 Dec 20259.53% 15 Jan 2026+0.60
29 Oct 20259.08% 15 Oct 202510.15% 31 Oct 2025+1.07
5 Aug 20259.69% 31 Jul 202510.72% 15 Aug 2025+1.03
29 Apr 202511.73% 15 Apr 202511.68% 30 Apr 2025−0.05
20 Feb 202510.61% 14 Feb 202511.65% 28 Feb 2025+1.04

Fails to deliver

The SEC's fails-to-deliver figure for BBIO: 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
50,173
14 Sep 2026
Highest in window
1,697,839
30 Jun 2026
Days with a balance
72
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for BridgeBio Pharma, 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 1.7M shares.

Embed this chart

Paste this snippet to embed the interactive chart. It updates with each FINRA report and keeps the source attribution. Preview

Download chart cardShare on XRedditLinkedIn
Cite this page
Plain
Wikipedia
BibTeX

Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202611.02%−0.16
31 Aug 202611.18%−0.75
14 Aug 202611.93%+0.01
31 Jul 202611.92%−1.23
15 Jul 202613.15%+0.84
30 Jun 202612.31%−0.67
15 Jun 202612.98%+0.53
29 May 202612.45%+0.11
15 May 202612.34%+0.07
30 Apr 202612.27%+0.57
15 Apr 202611.70%−0.35
31 Mar 202612.05%−0.07
13 Mar 202612.12%+0.79
27 Feb 202611.33%+0.41
13 Feb 202610.92%+0.55
30 Jan 202610.37%+0.84
15 Jan 20269.53%+0.60
31 Dec 20258.93%−0.82
15 Dec 20259.75%−0.31
28 Nov 202510.06%−0.68
14 Nov 202510.74%+0.59
31 Oct 202510.15%+1.07
15 Oct 20259.08%−0.07
30 Sep 20259.15%−1.02
15 Sep 202510.17%−0.24
29 Aug 202510.41%−0.31
15 Aug 202510.72%+1.03
31 Jul 20259.69%−0.57
15 Jul 202510.26%−1.24
30 Jun 202511.50%+0.38
13 Jun 202511.12%−0.46
30 May 202511.58%−0.22
15 May 202511.80%+0.12
30 Apr 202511.68%−0.05
15 Apr 202511.73%+0.32
31 Mar 202511.41%−0.03
14 Mar 202511.44%−0.21
28 Feb 202511.65%+1.04
14 Feb 202510.61%+0.67
31 Jan 20259.94%−0.85
15 Jan 202510.79%+0.58
31 Dec 202410.21%+1.15
13 Dec 20249.06%+0.07
29 Nov 20248.99%−0.10
15 Nov 20249.09%−0.06
31 Oct 20249.15%−0.31
15 Oct 20249.46%−0.45
30 Sep 20249.91%−0.52
13 Sep 202410.43%+1.01
30 Aug 20249.42%−0.16
15 Aug 20249.58%−1.03
31 Jul 202410.61%−0.64
15 Jul 202411.25%+0.56
28 Jun 202410.69%+1.79
14 Jun 20248.90%+0.02
31 May 20248.88%+0.45
15 May 20248.43%−0.24
30 Apr 20248.67%+0.01
15 Apr 20248.66%+0.45
28 Mar 20248.21%+0.50
15 Mar 20247.71%−0.13
29 Feb 20247.84%−0.21
15 Feb 20248.05%−0.12
31 Jan 20248.17%−1.10
12 Jan 20249.27%−0.55
29 Dec 20239.82%0.00
15 Dec 20239.82%+0.64
30 Nov 20239.18%−0.18
15 Nov 20239.36%+0.18
31 Oct 20239.18%−0.70
13 Oct 20239.88%+0.45
29 Sep 20239.43%−0.41
15 Sep 20239.84%+0.40
31 Aug 20239.44%−0.20
15 Aug 20239.64%+0.76
31 Jul 20238.88%−0.35
14 Jul 20239.23%−0.06
30 Jun 20239.29%+1.09
15 Jun 20238.20%−0.22
31 May 20238.42%+0.14
15 May 20238.28%−0.57
28 Apr 20238.85%−1.11
14 Apr 20239.96%−0.18
31 Mar 202310.14%−1.58
15 Mar 202311.72%+0.52
28 Feb 202311.20%+0.26
15 Feb 202310.94%−1.54
31 Jan 202312.48%+0.16
13 Jan 202312.32%−0.39
30 Dec 202212.71%−0.14
15 Dec 202212.85%−0.61
30 Nov 202213.46%−0.49
15 Nov 202213.95%−0.97
31 Oct 202214.92%−0.67
14 Oct 202215.59%+0.09
30 Sep 202215.50%−0.18
15 Sep 202215.68%+0.09
31 Aug 202215.59%+0.44
15 Aug 202215.15%+0.26
29 Jul 202214.89%+0.74
15 Jul 202214.15%−0.05
30 Jun 202214.20%−0.04
15 Jun 202214.24%+0.81
31 May 202213.43%+0.06
13 May 202213.37%+0.23
29 Apr 202213.14%+0.30
14 Apr 202212.84%−0.27
31 Mar 202213.11%+1.37
15 Mar 202211.74%+0.04
28 Feb 202211.70%+1.06
15 Feb 202210.64%+0.05
31 Jan 202210.59%+0.97
14 Jan 20229.62%−0.27
31 Dec 20219.89%+1.54
15 Dec 20218.35%+0.47
30 Nov 20217.88%−0.08
15 Nov 20217.96%−0.12
29 Oct 20218.08%+0.64
15 Oct 20217.44%+0.12
30 Sep 20217.32%−0.38
15 Sep 20217.70%−0.12
31 Aug 20217.82%+0.57
13 Aug 20217.25%−0.48
30 Jul 20217.73%+0.17
15 Jul 20217.56%+0.09
30 Jun 20217.47%+0.45
15 Jun 20217.02%+0.06
28 May 20216.96%−0.37
14 May 20217.33%−0.08
30 Apr 20217.41%−1.32
15 Apr 20218.73%+0.17
31 Mar 20218.56%−0.81
15 Mar 20219.37%+0.20
26 Feb 20219.17%−0.08
12 Feb 20219.25%−0.42
29 Jan 20219.67%−0.04
15 Jan 20219.71%+0.94
31 Dec 20208.77%−0.19
15 Dec 20208.96%0.00
30 Nov 20208.96%+0.16
13 Nov 20208.80%+0.02
30 Oct 20208.78%−0.24
15 Oct 20209.02%+0.32
30 Sep 20208.70%−0.31
15 Sep 20209.01%−0.22
31 Aug 20209.23%−0.44
14 Aug 20209.67%+0.19
31 Jul 20209.48%0.00
15 Jul 20209.48%+0.36
30 Jun 20209.12%+2.06
15 Jun 20207.06%−0.13
29 May 20207.19%+0.21
15 May 20206.98%+0.12
30 Apr 20206.86%−0.12
15 Apr 20206.98%−0.47
31 Mar 20207.45%+2.35
13 Mar 20205.10%+2.13
28 Feb 20202.97%+0.02
14 Feb 20202.95%−0.29
31 Jan 20203.24%+0.16
15 Jan 20203.08%−0.18
31 Dec 20193.26%+0.98
13 Dec 20192.28%+0.22
29 Nov 20192.06%+0.10
15 Nov 20191.96%−0.38
31 Oct 20192.34%−0.38
15 Oct 20192.72%–

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

Frequently asked questions

How shorted is BridgeBio Pharma, Inc. right now?
11.02% of BridgeBio Pharma, Inc.'s (BBIO) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 552nd 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 BBIO'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 BBIO's days to cover?
10.54 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.