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 FSBC'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 FSBC's days to cover?

1.18 days for settlement date 15 Apr 2020: 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.

How shorted was FSB Bancorp, Inc.? FSBC

FSB Bancorp, Inc. left the US market in 2020. This page is a frozen archive of its reported short interest, ending 15 Apr 2020. The ticker FSBC no longer refers to this company; it currently belongs to Five Star Bancorp.

0.17%

of shares outstanding reported short · settlement date 15 Apr 2020

vs previous report: −0.02
5 reports (~10 weeks): +0.17
days to cover: 1.18

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.

Fails to deliver

The SEC's fails-to-deliver figure for FSBC: 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: 182; 27 Aug 2026
Highest in window: 232,310; 24 Jul 2026
Days with a balance: 38
Window: 16 Sep 2025 to 14 Sep 2026

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 232K shares.

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Cite this page

Plain

Short position data for FSB Bancorp, Inc.: FINRA, compiled by howshorted.com, settlement date 15 Apr 2020. https://howshorted.com/us/company/fsbc-2020/

Wikipedia

<ref>{{cite web |title=FSB Bancorp, Inc. short position data |url=https://howshorted.com/us/company/fsbc-2020/ |website=HowShorted |publisher=howshorted.com (data: FINRA) |date=2020-04-15 |access-date=2026-10-13}}</ref>

BibTeX

@misc{howshorted-fsb-bancorp-inc-2020-04-15,
  title        = {FSB Bancorp, Inc. short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/us/company/fsbc-2020/}},
  note         = {Data: FINRA, settlement date 15 Apr 2020; accessed 2026-10-13},
  year         = {2020}
}

Sector: Financials

History

Full reported short interest history
Settlement date	Short %	Change
15 Apr 2020	0.17%	−0.02
31 Mar 2020	0.19%	+0.19
29 Nov 2019	0.00%	0.00
15 Nov 2019	0.00%	0.00
31 Oct 2019	0.00%	0.00
15 Oct 2019	0.00%	–

Frequently asked questions

How shorted was FSB Bancorp, Inc.?: FSB Bancorp, Inc. left the US market in 2020. Its final reported figure was 0.17% of shares outstanding for settlement date 15 Apr 2020, per FINRA's consolidated short interest report; this page preserves its full history.
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 FSBC'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 FSBC's days to cover?: 1.18 days for settlement date 15 Apr 2020: 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.