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HowShorted

ZYBT short interest Nasdaq Capital Market

Zhengye Biotechnology Holding. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: an SEC filer exists but no defensible share count is available yet.

Shares short
137,172
vs previous settlement
−36,686 (-21.1%)
days to cover
3.63
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for ZYBT shares short

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Aggregate net short position time series for ZYBT days to cover

Fails to deliver

The SEC's fails-to-deliver figure for ZYBT: 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
145
28 Aug 2026
Highest in window
457,897
23 Jul 2026
Days with a balance
124
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Zhengye Biotechnology Holding 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 458K shares.

History

Every FINRA settlement we hold for ZYBT, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026137,172−36,6863.63
31 Aug 2026173,858−188,2451.00
14 Aug 2026362,103+65,1791.00
31 Jul 2026296,924+239,5611.00
15 Jul 202657,363+13,8451.00
30 Jun 202643,518−64,8362.10
15 Jun 2026108,354+78,7111.00
29 May 202629,643−4,2664.18
15 May 202633,909+2,4881.00
30 Apr 202631,421−19,7011.35
15 Apr 202651,122−96,6651.92
31 Mar 2026147,787+134,8741.00
13 Mar 202612,913−7,4991.49
27 Feb 202620,412−2,3421.99
13 Feb 202622,754+501.00
30 Jan 202622,704+1,3132.02
15 Jan 202621,391−10,3511.06
31 Dec 202531,742+9541.81
15 Dec 202530,788−15,2071.34
28 Nov 202545,995−36,2311.54
14 Nov 202582,226−60,2172.92
31 Oct 2025142,443−21,4782.35
15 Oct 2025163,921−6,0221.00
30 Sep 2025169,943−20,1661.00
15 Sep 2025190,109−8,7381.00
29 Aug 2025198,847+4,6141.00
15 Aug 2025194,233−31,9112.03
31 Jul 2025226,144−20,23610.13
15 Jul 2025246,380−14,9342.92
30 Jun 2025261,314+76,3551.00
13 Jun 2025184,959+2,3891.00
30 May 2025182,570+53,7261.00
15 May 2025128,844−8,2491.00
30 Apr 2025137,093+36,6651.00
15 Apr 2025100,428+29,7321.00
31 Mar 202570,696+42,8941.00
14 Mar 202527,802−6,3341.69
28 Feb 202534,136−12,2661.00
14 Feb 202546,402+9,2141.84
31 Jan 202537,188−28,7611.00
15 Jan 202565,949–1.00

Scroll inside the table for earlier settlements, back to 15 Jan 2025.

Questions

Frequently asked questions

What is ZYBT's short interest?
137,172 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 36,686 from the previous settlement.
Why is there no percentage for ZYBT?
Because no defensible share count exists to divide by: an SEC filer exists but no defensible share count is available yet. The symbol maps to an SEC filer, but its share count cannot be used yet. A newly listed company needs two cover-page counts on file before the first is trusted; a split or an unexplained jump pauses publication until a fresh SEC count corroborates it; a secondary share class publishes under the company's primary line; and a foreign filer's short count is in depositary-share units. This page upgrades to a percentage automatically once a defensible count exists.
What is ZYBT's days to cover?
3.63 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume, published in the same file and shown verbatim. We hold no volume data ourselves.
Is this the short float?
No. This page shows FINRA's share count only. Short float divides that count by the public float, and short interest as we publish it elsewhere divides it by shares outstanding from SEC filings. Neither denominator is available for this line, so neither ratio is shown.
How often does this update?
FINRA member firms report short positions as of the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. We ingest each file the day it appears and re-read recent settlements for revisions.

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