bluebird bio, Inc. short interest in 2021
In 2021, bluebird bio, Inc.'s disclosed short interest ran from 9.26% of shares outstanding on 15 Jan 2021 to 8.26% on 31 Dec 2021, a change of -1.00 percentage points. The year's high was 10.22% on 31 Mar 2021 and its low 7.55% on 29 Oct 2021, averaging 8.69% across 24 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 8.24 days on 30 Jul 2021. Full history: bluebird bio, Inc..
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By year: 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024
2021 in figures
- Start of year
- 9.26% (15 Jan 2021)
- End of year
- 8.26% (31 Dec 2021)
- Change
- -1.00 pp
- High
- 10.22% (31 Mar 2021)
- Low
- 7.55% (29 Oct 2021)
- Average
- 8.69%
- Highest days to cover
- 8.24 (30 Jul 2021)
- SEC filings marked
- 9
Every report in 2021
| Settlement | Short interest | Days to cover | Filings since previous |
|---|---|---|---|
| 15 Jan 2021 | 9.26% | 5.48 | results (8-K) |
| 29 Jan 2021 | 8.96% | 4.80 | |
| 12 Feb 2021 | 9.17% | 7.45 | |
| 26 Feb 2021 | 9.55% | 1.09 | 10-K filed, results (8-K) |
| 15 Mar 2021 | 8.15% | 2.48 | |
| 31 Mar 2021 | 10.22% | 3.44 | |
| 15 Apr 2021 | 10.00% | 5.69 | |
| 30 Apr 2021 | 9.41% | 6.24 | |
| 14 May 2021 | 8.74% | 6.34 | 10-Q filed, results (8-K) |
| 28 May 2021 | 7.57% | 6.19 | |
| 15 Jun 2021 | 7.93% | 3.38 | |
| 30 Jun 2021 | 9.39% | 2.84 | |
| 15 Jul 2021 | 8.70% | 6.63 | |
| 30 Jul 2021 | 9.27% | 8.24 | |
| 13 Aug 2021 | 9.35% | 2.84 | 10-Q filed, results (8-K) |
| 31 Aug 2021 | 8.45% | 5.09 | |
| 15 Sep 2021 | 7.73% | 5.44 | |
| 30 Sep 2021 | 8.54% | 5.36 | |
| 15 Oct 2021 | 8.52% | 5.90 | |
| 29 Oct 2021 | 7.55% | 6.16 | |
| 15 Nov 2021 | 7.70% | 1.88 | 10-Q filed, results (8-K) |
| 30 Nov 2021 | 8.18% | 2.93 | |
| 15 Dec 2021 | 7.92% | 2.97 | |
| 31 Dec 2021 | 8.26% | 1.71 |
See also: bluebird bio, Inc.'s full history · most shorted US stocks of 2021 · today's US league.
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.