Skip to content
HowShorted

How shorted is Hyliion Holdings Corp.? HYLN

#830most shorted US stockof 3,805 ranked stocks, more shorted than 78%

8.95%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.96
5 reports (~10 weeks)
+2.61
days to cover
10.50
Aggregate net short position time series for Hyliion Holdings Corp.

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 Hyliion Holdings Corp. 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
11 Aug 20269.29% 31 Jul 20269.98% 14 Aug 2026+0.69
12 May 20267.88% 30 Apr 20267.31% 15 May 2026−0.57
25 Feb 20267.39% 13 Feb 20267.64% 27 Feb 2026+0.25
12 Nov 20258.95% 31 Oct 20259.02% 14 Nov 2025+0.07
12 Aug 20259.88% 31 Jul 20259.77% 15 Aug 2025−0.11
13 May 20259.36% 30 Apr 20259.34% 15 May 2025−0.02
25 Feb 20259.19% 14 Feb 20259.20% 28 Feb 2025+0.01
14 Nov 20246.50% 31 Oct 20246.95% 15 Nov 2024+0.45

Fails to deliver

The SEC's fails-to-deliver figure for HYLN: 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
384
11 Sep 2026
Highest in window
198,180
4 Dec 2025
Days with a balance
92
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Hyliion Holdings Corp. 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 198K 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: Industrials

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20268.95%−0.96
31 Aug 20269.91%−0.07
14 Aug 20269.98%+0.69
31 Jul 20269.29%+0.81
15 Jul 20268.48%+2.14
30 Jun 20266.34%+0.38
15 Jun 20265.96%+0.23
29 May 20265.73%−1.58
15 May 20267.31%−0.57
30 Apr 20267.88%+0.17
15 Apr 20267.71%+0.04
31 Mar 20267.67%+0.14
13 Mar 20267.53%−0.11
27 Feb 20267.64%+0.25
13 Feb 20267.39%+0.17
30 Jan 20267.22%−0.92
15 Jan 20268.14%−0.26
31 Dec 20258.40%−0.49
15 Dec 20258.89%−0.13
28 Nov 20259.02%0.00
14 Nov 20259.02%+0.07
31 Oct 20258.95%−0.64
15 Oct 20259.59%+0.15
30 Sep 20259.44%−0.14
15 Sep 20259.58%−0.03
29 Aug 20259.61%−0.16
15 Aug 20259.77%−0.11
31 Jul 20259.88%−0.01
15 Jul 20259.89%−0.33
30 Jun 202510.22%+0.04
13 Jun 202510.18%−0.55
30 May 202510.73%+1.39
15 May 20259.34%−0.02
30 Apr 20259.36%+0.35
15 Apr 20259.01%−0.42
31 Mar 20259.43%−0.28
14 Mar 20259.71%+0.51
28 Feb 20259.20%+0.01
14 Feb 20259.19%+1.86
31 Jan 20257.33%−0.22
15 Jan 20257.55%−0.25
31 Dec 20247.80%+0.13
13 Dec 20247.67%+0.51
29 Nov 20247.16%+0.21
15 Nov 20246.95%+0.45
31 Oct 20246.50%−0.22
15 Oct 20246.72%−0.02
30 Sep 20246.74%+0.10
13 Sep 20246.64%+0.10
30 Aug 20246.54%+0.13
15 Aug 20246.41%+0.75
31 Jul 20245.66%+0.16
15 Jul 20245.50%−0.35
28 Jun 20245.85%−0.05
14 Jun 20245.90%−0.31
31 May 20246.21%−0.07
15 May 20246.28%−0.40
30 Apr 20246.68%+0.77
15 Apr 20245.91%+0.80
28 Mar 20245.11%+0.72
15 Mar 20244.39%−0.05
29 Feb 20244.44%−0.25
15 Feb 20244.69%+0.13
31 Jan 20244.56%+0.03
12 Jan 20244.53%+0.13
29 Dec 20234.40%+1.02
15 Dec 20233.38%−0.37
30 Nov 20233.75%−0.77
15 Nov 20234.52%−0.56
31 Oct 20235.08%−0.85
13 Oct 20235.93%+0.38
29 Sep 20235.55%−0.31
15 Sep 20235.86%+0.07
31 Aug 20235.79%−0.29
15 Aug 20236.08%−0.01
31 Jul 20236.09%−0.02
14 Jul 20236.11%+0.03
30 Jun 20236.08%−1.13
15 Jun 20237.21%−0.52
31 May 20237.73%−0.08
15 May 20237.81%0.00
28 Apr 20237.81%+0.69
14 Apr 20237.12%+0.77
31 Mar 20236.35%+0.17
15 Mar 20236.18%−0.04
28 Feb 20236.22%+0.28
15 Feb 20235.94%−0.27
31 Jan 20236.21%−0.74
13 Jan 20236.95%−0.35
30 Dec 20227.30%−0.01
15 Dec 20227.31%+0.13
30 Nov 20227.18%−0.15
15 Nov 20227.33%−0.65
31 Oct 20227.98%0.00
14 Oct 20227.98%+0.12
30 Sep 20227.86%−0.87
15 Sep 20228.73%+0.96
31 Aug 20227.77%+0.15
15 Aug 20227.62%−0.16
29 Jul 20227.78%−0.14
15 Jul 20227.92%−0.02
30 Jun 20227.94%+0.46
15 Jun 20227.48%−0.73
31 May 20228.21%−0.26
13 May 20228.47%−0.08
29 Apr 20228.55%+0.42
14 Apr 20228.13%+0.07
31 Mar 20228.06%−0.57
15 Mar 20228.63%−1.84
28 Feb 202210.47%−0.03
15 Feb 202210.50%−1.23
31 Jan 202211.73%+0.59
14 Jan 202211.14%+0.06
31 Dec 202111.08%−1.14
15 Dec 202112.22%−1.07
30 Nov 202113.29%−0.08
15 Nov 202113.37%−0.25
29 Oct 202113.62%−0.55
15 Oct 202114.17%+0.05
30 Sep 202114.12%+0.07
15 Sep 202114.05%+0.76
31 Aug 202113.29%+0.54
13 Aug 202112.75%−0.01
30 Jul 202112.76%−0.70
15 Jul 202113.46%−0.19
30 Jun 202113.65%+1.68
15 Jun 202111.97%−2.15
28 May 202114.12%+0.18
14 May 202113.94%−0.39
30 Apr 202114.33%+0.98
15 Apr 202113.35%+4.54
31 Mar 20218.81%+2.32
15 Mar 20216.49%+1.52
26 Feb 20214.97%−0.13
12 Feb 20215.10%+1.63
29 Jan 20213.47%−2.08
15 Jan 20215.55%–

Newest first. Scroll inside the table for earlier dates, back to 15 Jan 2021.

Frequently asked questions

How shorted is Hyliion Holdings Corp. right now?
8.95% of Hyliion Holdings Corp.'s (HYLN) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 830th 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 HYLN'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 HYLN's days to cover?
10.50 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.