Skip to content
HowShorted

How shorted is BioAge Labs, Inc.? BIOA

#1,220most shorted US stockof 3,805 ranked stocks, more shorted than 67%

The ticker BIOA previously referred to BioAmber Inc. (to 2018).

6.70%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.77
5 reports (~10 weeks)
−1.74
days to cover
6.06
Aggregate net short position time series for BioAge Labs, 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 BioAge Labs, 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 20265.59% 31 Jul 20264.83% 14 Aug 2026−0.76
8 May 20264.25% 30 Apr 20263.85% 15 May 2026−0.40
24 Mar 20263.77% 13 Mar 20263.51% 31 Mar 2026−0.26
6 Nov 20251.29% 31 Oct 20251.19% 14 Nov 2025−0.10
6 Aug 20256.65% 31 Jul 20256.70% 15 Aug 2025+0.05
6 May 20255.02% 30 Apr 20254.86% 15 May 2025−0.16
20 Mar 20254.89% 14 Mar 20254.98% 31 Mar 2025+0.09

Fails to deliver

The SEC's fails-to-deliver figure for BIOA: 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
434
4 Sep 2026
Highest in window
1,397,112
12 Dec 2025
Days with a balance
56
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for BioAge Labs, 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 1.4M 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 20266.70%+0.77
31 Aug 20265.93%+1.10
14 Aug 20264.83%−0.76
31 Jul 20265.59%+0.07
15 Jul 20265.52%−2.92
30 Jun 20268.44%+3.95
15 Jun 20264.49%+0.46
29 May 20264.03%+0.18
15 May 20263.85%−0.40
30 Apr 20264.25%+0.32
15 Apr 20263.93%+0.42
31 Mar 20263.51%−0.26
13 Mar 20263.77%+0.21
27 Feb 20263.56%−0.18
13 Feb 20263.74%+1.20
30 Jan 20262.54%−0.49
15 Jan 20263.03%+1.37
31 Dec 20251.66%+0.10
15 Dec 20251.56%+0.16
28 Nov 20251.40%+0.21
14 Nov 20251.19%−0.10
31 Oct 20251.29%−5.66
30 Sep 20256.95%+0.43
15 Sep 20256.52%+0.01
29 Aug 20256.51%−0.19
15 Aug 20256.70%+0.05
31 Jul 20256.65%+0.21
15 Jul 20256.44%−0.02
30 Jun 20256.46%+2.51
13 Jun 20253.95%−0.47
30 May 20254.42%−0.44
15 May 20254.86%−0.16
30 Apr 20255.02%+0.21
15 Apr 20254.81%−0.17
31 Mar 20254.98%+0.09
14 Mar 20254.89%−0.28
28 Feb 20255.17%−0.39
14 Feb 20255.56%+0.67
31 Jan 20254.89%−0.85
15 Jan 20255.74%0.00
31 Dec 20245.74%+1.97
13 Dec 20243.77%–

Newest first. Scroll inside the table for earlier dates, back to 13 Dec 2024.

Frequently asked questions

How shorted is BioAge Labs, Inc. right now?
6.70% of BioAge Labs, Inc.'s (BIOA) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 1,220th 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 BIOA'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 BIOA's days to cover?
6.06 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.