PACIFIC BIOSCIENCES OF CALIFORNIA, INC. short interest in 2026

In 2026, PACIFIC BIOSCIENCES OF CALIFORNIA, INC.'s disclosed short interest ran from 11.62% of shares outstanding on 15 Jan 2026 to 15.73% on 15 Sep 2026, a change of +4.11 percentage points. The year's high was 19.50% on 15 Jun 2026 and its low 11.62% on 15 Jan 2026, averaging 15.15% across 17 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 10.49 days on 15 Sep 2026. Full history: PACIFIC BIOSCIENCES OF CALIFORNIA, INC..

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Plain

Short position data for PACIFIC BIOSCIENCES OF CALIFORNIA, INC. short interest in 2026: FINRA, compiled by howshorted.com, settlement date 15 Sep 2026. https://howshorted.com/us/company/pacb/2026/

Wikipedia

<ref>{{cite web |title=PACIFIC BIOSCIENCES OF CALIFORNIA, INC. short interest in 2026 short position data |url=https://howshorted.com/us/company/pacb/2026/ |website=HowShorted |publisher=howshorted.com (data: FINRA) |date=2026-09-15 |access-date=2026-10-13}}</ref>

BibTeX

@misc{howshorted-pacific-biosciences-of-california-inc-sh-2026-09-15,
  title        = {PACIFIC BIOSCIENCES OF CALIFORNIA, INC. short interest in 2026 short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/us/company/pacb/2026/}},
  note         = {Data: FINRA, settlement date 15 Sep 2026; accessed 2026-10-13},
  year         = {2026}
}

By year: 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026

2026 in figures

Start of year: 11.62% (15 Jan 2026)
End of year: 15.73% (15 Sep 2026)
Change: +4.11 pp
High: 19.50% (15 Jun 2026)
Low: 11.62% (15 Jan 2026)
Average: 15.15%
Highest days to cover: 10.49 (15 Sep 2026)
SEC filings marked: 7

Every report in 2026

PACIFIC BIOSCIENCES OF CALIFORNIA, INC. short interest in 2026
Settlement	Short interest	Days to cover	Filings since previous
15 Jan 2026	11.62%	4.00	results (8-K)
30 Jan 2026	11.79%	4.25
13 Feb 2026	12.89%	5.27	results (8-K)
27 Feb 2026	12.65%	7.14	10-K filed
13 Mar 2026	13.70%	6.56
31 Mar 2026	15.11%	8.41
15 Apr 2026	15.35%	8.42
30 Apr 2026	15.16%	7.04
15 May 2026	19.29%	9.02	results (8-K), 10-Q filed
29 May 2026	15.68%	8.57
15 Jun 2026	19.50%	10.17
30 Jun 2026	15.29%	6.51
15 Jul 2026	14.89%	9.97
31 Jul 2026	15.77%	7.35
14 Aug 2026	17.18%	6.63	results (8-K), 10-Q filed
31 Aug 2026	15.95%	6.75
15 Sep 2026	15.73%	10.49

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.