Portola Pharmaceuticals, Inc. short interest in 2020

In 2020, Portola Pharmaceuticals, Inc.'s disclosed short interest ran from 19.91% of shares outstanding on 15 Jan 2020 to 13.21% on 30 Jun 2020, a change of -6.70 percentage points. The year's high was 23.50% on 31 Mar 2020 and its low 13.21% on 30 Jun 2020, averaging 20.17% across 12 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 18.02 days on 14 Feb 2020. Full history: Portola Pharmaceuticals, Inc..

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Plain

Short position data for Portola Pharmaceuticals, Inc. short interest in 2020: FINRA, compiled by howshorted.com, settlement date 30 Jun 2020. https://howshorted.com/us/company/ptla-2021/2020/

Wikipedia

<ref>{{cite web |title=Portola Pharmaceuticals, Inc. short interest in 2020 short position data |url=https://howshorted.com/us/company/ptla-2021/2020/ |website=HowShorted |publisher=howshorted.com (data: FINRA) |date=2020-06-30 |access-date=2026-10-13}}</ref>

BibTeX

@misc{howshorted-portola-pharmaceuticals-inc-short-intere-2020-06-30,
  title        = {Portola Pharmaceuticals, Inc. short interest in 2020 short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/us/company/ptla-2021/2020/}},
  note         = {Data: FINRA, settlement date 30 Jun 2020; accessed 2026-10-13},
  year         = {2020}
}

By year: 2018 · 2019 · 2020

2020 in figures

Start of year: 19.91% (15 Jan 2020)
End of year: 13.21% (30 Jun 2020)
Change: -6.70 pp
High: 23.50% (31 Mar 2020)
Low: 13.21% (30 Jun 2020)
Average: 20.17%
Highest days to cover: 18.02 (14 Feb 2020)
SEC filings marked: 5

Every report in 2020

Portola Pharmaceuticals, Inc. short interest in 2020
Settlement	Short interest	Days to cover	Filings since previous
15 Jan 2020	19.91%	4.34	results (8-K)
31 Jan 2020	22.21%	12.64
14 Feb 2020	22.54%	18.02
28 Feb 2020	22.64%	10.31	results (8-K), 10-K filed
13 Mar 2020	23.43%	12.04
31 Mar 2020	23.50%	9.51
15 Apr 2020	23.20%	12.47
30 Apr 2020	23.31%	11.27
15 May 2020	14.18%	1.00	10-Q filed, results (8-K)
29 May 2020	17.44%	4.28
15 Jun 2020	16.50%	7.44
30 Jun 2020	13.21%	6.67

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.