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HowShorted

How shorted is DELCATH SYSTEMS, INC.? DCTH

#1,234most shorted US stockof 3,805 ranked stocks, more shorted than 67%

6.66%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.20
5 reports (~10 weeks)
−1.65
days to cover
6.93
Aggregate net short position time series for DELCATH SYSTEMS, 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 DELCATH SYSTEMS, 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
6 Aug 20267.30% 31 Jul 20266.79% 14 Aug 2026−0.51
7 May 202610.28% 30 Apr 20269.94% 15 May 2026−0.34
26 Feb 202611.62% 13 Feb 202611.50% 27 Feb 2026−0.12
12 Jan 202612.20% 31 Dec 202512.36% 15 Jan 2026+0.16
4 Nov 202512.01% 31 Oct 202512.03% 14 Nov 2025+0.02
20 Oct 202513.64% 15 Oct 202512.01% 31 Oct 2025−1.63
6 Aug 20258.05% 31 Jul 20258.66% 15 Aug 2025+0.61
8 May 20253.00% 30 Apr 20252.70% 15 May 2025−0.30

Fails to deliver

The SEC's fails-to-deliver figure for DCTH: 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
696
11 Sep 2026
Highest in window
398,899
1 Oct 2025
Days with a balance
81
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for DELCATH SYSTEMS, 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 399K shares.

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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20266.66%+0.20
31 Aug 20266.46%−0.33
14 Aug 20266.79%−0.51
31 Jul 20267.30%−0.50
15 Jul 20267.80%−0.51
30 Jun 20268.31%−1.24
15 Jun 20269.55%+0.54
29 May 20269.01%−0.93
15 May 20269.94%−0.34
30 Apr 202610.28%−0.83
15 Apr 202611.11%−0.30
31 Mar 202611.41%−0.42
13 Mar 202611.83%+0.33
27 Feb 202611.50%−0.12
13 Feb 202611.62%−0.30
30 Jan 202611.92%−0.44
15 Jan 202612.36%+0.16
31 Dec 202512.20%−0.30
15 Dec 202512.50%+0.22
28 Nov 202512.28%+0.25
14 Nov 202512.03%+0.02
31 Oct 202512.01%−1.63
15 Oct 202513.64%+2.29
30 Sep 202511.35%+2.21
15 Sep 20259.14%+0.44
29 Aug 20258.70%+0.04
15 Aug 20258.66%+0.61
31 Jul 20258.05%+1.78
15 Jul 20256.27%+1.69
30 Jun 20254.58%+2.69
13 Jun 20251.89%−0.28
30 May 20252.17%−0.53
15 May 20252.70%−0.30
30 Apr 20253.00%−0.10
15 Apr 20253.10%+0.52
31 Mar 20252.58%+0.17
14 Mar 20252.41%+0.31
28 Feb 20252.10%−0.66
14 Feb 20252.76%−0.33
31 Jan 20253.09%+0.16
15 Jan 20252.93%−0.32
31 Dec 20243.25%−0.98
13 Dec 20244.23%−0.49
29 Nov 20244.72%+1.03
15 Nov 20243.69%−0.40
31 Oct 20244.09%−0.37
15 Oct 20244.46%+0.12
30 Sep 20244.34%−0.57
13 Sep 20244.91%−0.08
30 Aug 20244.99%−0.24
15 Aug 20245.23%−0.40
31 Jul 20245.63%−0.11
15 Jul 20245.74%+0.15
28 Jun 20245.59%+0.91
14 Jun 20244.68%+0.71
31 May 20243.97%+0.05
15 May 20243.92%+0.14
30 Apr 20243.78%+0.44
15 Apr 20243.34%−0.47
28 Mar 20243.81%−0.27
15 Mar 20244.08%+0.30
29 Feb 20243.78%+0.08
15 Feb 20243.70%+0.18
31 Jan 20243.52%−0.06
12 Jan 20243.58%−0.17
29 Dec 20233.75%+0.38
15 Dec 20233.37%−0.17
30 Nov 20233.54%+0.31
15 Nov 20233.23%−1.81
31 Oct 20235.04%+0.01
13 Oct 20235.03%−0.15
29 Sep 20235.18%+0.30
15 Sep 20234.88%−1.39
31 Aug 20236.27%+1.55
15 Aug 20234.72%−0.28
31 Jul 20235.00%−1.12
14 Jul 20236.12%+1.68
30 Jun 20234.44%+0.20
15 Jun 20234.24%−0.29
31 May 20234.53%−0.02
15 May 20234.55%+0.33
28 Apr 20234.22%+0.51
14 Apr 20233.71%+1.37
31 Mar 20232.34%−0.27
15 Mar 20232.61%+0.10
28 Feb 20232.51%+0.13
15 Feb 20232.38%+0.17
31 Jan 20232.21%+0.16
13 Jan 20232.05%+0.01
30 Dec 20222.04%−0.14
15 Dec 20222.18%+0.03
30 Nov 20222.15%+0.21
15 Nov 20221.94%+0.11
31 Oct 20221.83%−0.15
14 Oct 20221.98%−0.31
30 Sep 20222.29%−0.12
15 Sep 20222.41%+0.08
31 Aug 20222.33%−0.14
15 Aug 20222.47%−0.67
29 Jul 20223.14%−0.45
15 Jul 20223.59%−0.29
30 Jun 20223.88%−0.12
15 Jun 20224.00%+0.66
31 May 20223.34%−0.48
13 May 20223.82%−0.04
29 Apr 20223.86%−0.14
14 Apr 20224.00%−0.03
31 Mar 20224.03%−0.42
15 Mar 20224.45%−0.36
28 Feb 20224.81%−0.28
15 Feb 20225.09%−0.32
31 Jan 20225.41%−0.59
14 Jan 20226.00%+0.43
31 Dec 20215.57%+0.26
15 Dec 20215.31%+1.92
30 Nov 20213.39%+0.01
15 Nov 20213.38%−0.29
29 Oct 20213.67%−0.38
15 Oct 20214.05%−0.91
30 Sep 20214.96%−0.39
15 Sep 20215.35%+0.02
31 Aug 20215.33%−0.69
13 Aug 20216.02%−1.22
30 Jul 20217.24%−0.19
15 Jul 20217.43%+0.27
30 Jun 20217.16%−0.45
15 Jun 20217.61%−0.12
28 May 20217.73%+0.18
14 May 20217.55%+1.06
30 Apr 20216.49%+0.71
15 Apr 20215.78%−0.90
31 Mar 20216.68%−2.89
15 Mar 20219.57%+0.56
26 Feb 20219.01%−3.07
12 Feb 202112.08%+2.13
29 Jan 20219.95%+0.48
15 Jan 20219.47%+1.88
31 Dec 20207.59%+3.02
15 Dec 20204.57%+0.17
30 Nov 20204.40%+0.72
13 Nov 20203.68%−0.19
30 Oct 20203.87%+0.20
15 Oct 20203.67%+0.15
30 Sep 20203.52%−0.28
15 Sep 20203.80%+0.37
31 Aug 20203.43%+0.14
14 Aug 20203.29%−3.67
15 May 20206.96%–

Newest first. Scroll inside the table for earlier dates, back to 15 May 2020.

Frequently asked questions

How shorted is DELCATH SYSTEMS, INC. right now?
6.66% of DELCATH SYSTEMS, INC.'s (DCTH) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 1,234th 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 DCTH'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 DCTH's days to cover?
6.93 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.