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HowShorted

How shorted is Fuel Tech, Inc.? FTEK

0.44%
of shares outstanding reported short · settlement date 31 Aug 2026
vs previous report
+0.08
5 reports (~10 weeks)
+0.17
days to cover
1.22
Aggregate net short position time series for Fuel Tech, 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 Fuel Tech, 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
4 Aug 20260.28% 31 Jul 20260.36% 14 Aug 2026+0.08
5 May 20260.37% 30 Apr 20260.34% 15 May 2026−0.03
3 Mar 20260.29% 27 Feb 20260.32% 13 Mar 2026+0.03
4 Nov 20251.89% 31 Oct 20251.36% 14 Nov 2025−0.53
5 Aug 20252.53% 31 Jul 20252.49% 15 Aug 2025−0.04
12 May 20250.31% 30 Apr 20250.36% 15 May 2025+0.05
4 Mar 20250.24% 28 Feb 20250.22% 14 Mar 2025−0.02
6 Nov 20240.56% 31 Oct 20240.32% 15 Nov 2024−0.24

Fails to deliver

The SEC's fails-to-deliver figure for FTEK: 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
15,629
10 Sep 2026
Highest in window
15,629
10 Sep 2026
Days with a balance
11
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Fuel Tech, 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 16K shares.

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Sector: Industrials

History

Full reported short interest history
Settlement dateShort %Change
31 Aug 20260.44%+0.08
14 Aug 20260.36%+0.08
31 Jul 20260.28%−0.07
15 Jul 20260.35%−0.29
30 Jun 20260.64%+0.37
15 Jun 20260.27%+0.07
29 May 20260.20%−0.14
15 May 20260.34%−0.03
30 Apr 20260.37%+0.02
15 Apr 20260.35%+0.03
31 Mar 20260.32%0.00
13 Mar 20260.32%+0.03
27 Feb 20260.29%−0.01
13 Feb 20260.30%−0.01
30 Jan 20260.31%−0.24
15 Jan 20260.55%−0.36
31 Dec 20250.91%−0.23
15 Dec 20251.14%−0.06
28 Nov 20251.20%−0.16
14 Nov 20251.36%−0.53
31 Oct 20251.89%−0.20
15 Oct 20252.09%−0.21
30 Sep 20252.30%+0.17
15 Sep 20252.13%−0.15
29 Aug 20252.28%−0.21
15 Aug 20252.49%−0.04
31 Jul 20252.53%+2.30
13 Jun 20250.23%−0.06
30 May 20250.29%−0.07
15 May 20250.36%+0.05
30 Apr 20250.31%+0.02
15 Apr 20250.29%+0.03
31 Mar 20250.26%+0.04
14 Mar 20250.22%−0.02
28 Feb 20250.24%−0.03
14 Feb 20250.27%−0.06
31 Jan 20250.33%−0.09
15 Jan 20250.42%−0.04
31 Dec 20240.46%+0.26
13 Dec 20240.20%−0.01
29 Nov 20240.21%−0.11
15 Nov 20240.32%−0.24
31 Oct 20240.56%−0.07
15 Oct 20240.63%−0.03
30 Sep 20240.66%−0.19
13 Sep 20240.85%−0.18
30 Aug 20241.03%+0.03
15 Aug 20241.00%+0.02
31 Jul 20240.98%−0.03
15 Jul 20241.01%+0.11
28 Jun 20240.90%0.00
14 Jun 20240.90%−0.01
31 May 20240.91%−0.11
15 May 20241.02%−0.21
30 Apr 20241.23%−0.03
15 Apr 20241.26%−0.11
28 Mar 20241.37%−0.02
15 Mar 20241.39%+0.24
29 Feb 20241.15%−0.14
15 Feb 20241.29%−0.31
31 Jan 20241.60%+0.15
12 Jan 20241.45%−0.05
29 Dec 20231.50%−0.13
15 Dec 20231.63%+0.16
30 Nov 20231.47%−0.14
15 Nov 20231.61%+0.13
31 Oct 20231.48%0.00
13 Oct 20231.48%−0.02
29 Sep 20231.50%−0.18
15 Sep 20231.68%+0.04
31 Aug 20231.64%−0.02
15 Aug 20231.66%−0.01
31 Jul 20231.67%+0.01
14 Jul 20231.66%+0.13
30 Jun 20231.53%−0.13
15 Jun 20231.66%+0.06
31 May 20231.60%−0.19
15 May 20231.79%−0.27
28 Apr 20232.06%+0.30
14 Apr 20231.76%0.00
31 Mar 20231.76%+0.16
15 Mar 20231.60%−0.18
28 Feb 20231.78%−0.01
15 Feb 20231.79%−0.13
31 Jan 20231.92%0.00
13 Jan 20231.92%−0.05
30 Dec 20221.97%+0.07
15 Dec 20221.90%+0.02
30 Nov 20221.88%−0.02
15 Nov 20221.90%−0.06
31 Oct 20221.96%−0.12
14 Oct 20222.08%−0.17
30 Sep 20222.25%+0.12
15 Sep 20222.13%−0.18
31 Aug 20222.31%+0.50
15 Aug 20221.81%−0.27
29 Jul 20222.08%−0.26
15 Jul 20222.34%−0.17
30 Jun 20222.51%+0.22
15 Jun 20222.29%−0.54
31 May 20222.83%−0.42
13 May 20223.25%+0.06
29 Apr 20223.19%−0.31
14 Apr 20223.50%−0.76
31 Mar 20224.26%+0.80
15 Mar 20223.46%−0.27
28 Feb 20223.73%+0.74
15 Feb 20222.99%+0.18
31 Jan 20222.81%−1.00
14 Jan 20223.81%−0.13
31 Dec 20213.94%−0.85
15 Dec 20214.79%+1.33
30 Nov 20213.46%−2.86
15 Nov 20216.32%+0.24
29 Oct 20216.08%+3.48
15 Oct 20212.60%−0.46
30 Sep 20213.06%−0.38
15 Sep 20213.44%+0.13
31 Aug 20213.31%−0.83
13 Aug 20214.14%+3.01
28 May 20211.13%−0.49
14 May 20211.62%0.00
30 Apr 20211.62%−6.83
31 Mar 20218.45%−0.40
15 Mar 20218.85%−0.41
26 Feb 20219.26%−2.03
30 Nov 202011.29%+2.91
13 Nov 20208.38%+8.16
30 Oct 20200.22%−0.01
15 Oct 20200.23%−0.35
30 Sep 20200.58%+0.25
15 Sep 20200.33%−0.11
31 Aug 20200.44%+0.25
14 Aug 20200.19%−0.07
31 Jul 20200.26%+0.22
30 Apr 20200.04%+0.01
31 Mar 20200.03%0.00
13 Mar 20200.03%−0.05
31 Jan 20200.08%−0.11
15 Jan 20200.19%+0.04
31 Dec 20190.15%−0.12
13 Dec 20190.27%+0.15
29 Nov 20190.12%−0.06
15 Nov 20190.18%+0.06
31 Oct 20190.12%+0.04
15 Oct 20190.08%−0.09
30 Sep 20190.17%−0.11
15 Aug 20190.28%−0.16
31 Jul 20190.44%−0.32
15 Jul 20190.76%−0.03
28 Jun 20190.79%−0.38
14 Jun 20191.17%+0.23
31 May 20190.94%−0.57
15 May 20191.51%+0.09
30 Apr 20191.42%+1.37
15 Mar 20190.05%−0.02
28 Feb 20190.07%−0.03
15 Feb 20190.10%−0.10
31 Jan 20190.20%+0.01
15 Jan 20190.19%0.00
31 Dec 20180.19%−0.11
14 Dec 20180.30%−0.04
30 Nov 20180.34%+0.07
15 Nov 20180.27%−0.05
31 Oct 20180.32%+0.11
15 Oct 20180.21%−0.05
28 Sep 20180.26%−0.31
14 Sep 20180.57%+0.12
31 Aug 20180.45%+0.24
15 Aug 20180.21%+0.01
31 Jul 20180.20%0.00
13 Jul 20180.20%−0.01
29 Jun 20180.21%+0.01
15 Jun 20180.20%0.00
31 May 20180.20%−0.24
15 May 20180.44%0.00
30 Apr 20180.44%−0.03
13 Apr 20180.47%+0.04
29 Mar 20180.43%−0.24
15 Mar 20180.67%+0.23
28 Feb 20180.44%+0.02
15 Feb 20180.42%−0.14
31 Jan 20180.56%+0.12
12 Jan 20180.44%−0.01
29 Dec 20170.45%–

Newest first. Scroll inside the table for earlier dates, back to 29 Dec 2017.

Frequently asked questions

How shorted is Fuel Tech, Inc. right now?
0.44% of Fuel Tech, Inc.'s (FTEK) shares outstanding were reported short for settlement date 31 Aug 2026, per FINRA's consolidated short interest report.
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 FTEK'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 FTEK's days to cover?
1.22 days for settlement date 31 Aug 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.