TESARO, Inc. short interest in 2018

In 2018, TESARO, Inc.'s disclosed short interest ran from 13.95% of shares outstanding on 12 Jan 2018 to 11.80% on 31 Dec 2018, a change of -2.15 percentage points. The year's high was 28.27% on 28 Sep 2018 and its low 11.80% on 31 Dec 2018, averaging 19.29% across 24 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 12.86 days on 28 Sep 2018. Full history: TESARO, Inc..

Cite this page

Plain

Short position data for TESARO, Inc. short interest in 2018: FINRA, compiled by howshorted.com, settlement date 31 Dec 2018. https://howshorted.com/us/company/tsro-2020/2018/

Wikipedia

<ref>{{cite web |title=TESARO, Inc. short interest in 2018 short position data |url=https://howshorted.com/us/company/tsro-2020/2018/ |website=HowShorted |publisher=howshorted.com (data: FINRA) |date=2018-12-31 |access-date=2026-10-13}}</ref>

BibTeX

@misc{howshorted-tesaro-inc-short-interest-in-2018-2018-12-31,
  title        = {TESARO, Inc. short interest in 2018 short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/us/company/tsro-2020/2018/}},
  note         = {Data: FINRA, settlement date 31 Dec 2018; accessed 2026-10-13},
  year         = {2018}
}

2018 in figures

Start of year: 13.95% (12 Jan 2018)
End of year: 11.80% (31 Dec 2018)
Change: -2.15 pp
High: 28.27% (28 Sep 2018)
Low: 11.80% (31 Dec 2018)
Average: 19.29%
Highest days to cover: 12.86 (28 Sep 2018)
SEC filings marked: 8

Every report in 2018

TESARO, Inc. short interest in 2018
Settlement	Short interest	Days to cover	Filings since previous
12 Jan 2018	13.95%	6.94
31 Jan 2018	13.61%	4.60
15 Feb 2018	15.20%	9.09
28 Feb 2018	15.58%	6.26	results (8-K), 10-K filed
15 Mar 2018	17.08%	7.58
29 Mar 2018	17.36%	10.65
13 Apr 2018	17.31%	9.24
30 Apr 2018	17.79%	11.40
15 May 2018	17.93%	7.54	10-Q filed, results (8-K)
31 May 2018	20.01%	5.31
15 Jun 2018	17.34%	4.45
29 Jun 2018	18.46%	3.72
13 Jul 2018	19.39%	8.53
31 Jul 2018	19.48%	6.15
15 Aug 2018	19.26%	3.28	results (8-K), 10-Q filed
31 Aug 2018	22.57%	9.06
14 Sep 2018	26.02%	5.93
28 Sep 2018	28.27%	12.86
15 Oct 2018	26.03%	9.79
31 Oct 2018	22.91%	6.02
15 Nov 2018	25.85%	6.31	results (8-K), 10-Q filed
30 Nov 2018	25.86%	3.03
14 Dec 2018	13.97%	1.00
31 Dec 2018	11.80%	2.10

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.