Ultra Clean Holdings, Inc. short interest in 2018

In 2018, Ultra Clean Holdings, Inc.'s disclosed short interest ran from 11.22% of shares outstanding on 12 Jan 2018 to 16.85% on 31 Dec 2018, a change of +5.63 percentage points. The year's high was 16.85% on 30 Nov 2018 and its low 9.65% on 30 Apr 2018, averaging 12.94% across 24 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 11.49 days on 14 Dec 2018. Full history: Ultra Clean Holdings, Inc..

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Plain

Short position data for Ultra Clean Holdings, Inc. short interest in 2018: FINRA, compiled by howshorted.com, settlement date 31 Dec 2018. https://howshorted.com/us/company/uctt/2018/

Wikipedia

<ref>{{cite web |title=Ultra Clean Holdings, Inc. short interest in 2018 short position data |url=https://howshorted.com/us/company/uctt/2018/ |website=HowShorted |publisher=howshorted.com (data: FINRA) |date=2018-12-31 |access-date=2026-10-13}}</ref>

BibTeX

@misc{howshorted-ultra-clean-holdings-inc-short-interest--2018-12-31,
  title        = {Ultra Clean Holdings, Inc. short interest in 2018 short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/us/company/uctt/2018/}},
  note         = {Data: FINRA, settlement date 31 Dec 2018; accessed 2026-10-13},
  year         = {2018}
}

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2018 in figures

Start of year: 11.22% (12 Jan 2018)
End of year: 16.85% (31 Dec 2018)
Change: +5.63 pp
High: 16.85% (30 Nov 2018)
Low: 9.65% (30 Apr 2018)
Average: 12.94%
Highest days to cover: 11.49 (14 Dec 2018)
SEC filings marked: 9

Every report in 2018

Ultra Clean Holdings, Inc. short interest in 2018
Settlement	Short interest	Days to cover	Filings since previous
12 Jan 2018	11.22%	2.22
31 Jan 2018	9.97%	1.75	results (8-K)
15 Feb 2018	10.78%	2.13
28 Feb 2018	11.94%	2.27	results (8-K)
15 Mar 2018	11.88%	4.54	10-K filed
29 Mar 2018	11.39%	4.26
13 Apr 2018	11.14%	4.80
30 Apr 2018	9.65%	2.73	results (8-K)
15 May 2018	10.97%	5.76	10-Q filed
31 May 2018	12.07%	5.54
15 Jun 2018	10.80%	4.44
29 Jun 2018	11.74%	4.29
13 Jul 2018	12.13%	5.94
31 Jul 2018	12.26%	3.15	results (8-K)
15 Aug 2018	13.67%	8.35	10-Q filed
31 Aug 2018	15.37%	7.06
14 Sep 2018	13.83%	8.29
28 Sep 2018	14.34%	9.65
15 Oct 2018	14.77%	10.90
31 Oct 2018	14.12%	7.74
15 Nov 2018	16.59%	6.49	results (8-K), 10-Q filed
30 Nov 2018	16.85%	11.30
14 Dec 2018	16.26%	11.49
31 Dec 2018	16.85%	6.71

About this data

US short interest data: FINRA (finra.org), shown as reported shares short divided by SEC-reported shares outstanding for each settlement date. FINRA® is a registered trademark of the Financial Industry Regulatory Authority, Inc. This site is not affiliated with or endorsed by FINRA or the SEC; displayed for personal reference, bulk redistribution is not permitted (see terms). Nothing here is investment advice. Method: methodology.