BIO
Bio-Rad Laboratories, Inc.Company with tickers: BIO, BIO-B
CIK
12208
CUSIP
090572207
Shares Outstanding
21,700,560
Website
https://www.bio-rad.com
Investor Relations
https://investors.bio-rad.com/overview/default.aspx
13F Activity (30d)
140 filings
132 filers
Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Short Squeeze Score
66/100
Short interest 6.9% of shares — P81
Days to cover 2.6 — P48
Short-volume trend +4.2% — P68
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-05-29). Equal-weight mean of the available factors.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-05-29 | 1,506,093 | 1,340,805 | +165,288 | 2.61 |
| 2026-05-15 | 1,340,805 | 1,091,991 | +248,814 | 2.92 |
| 2026-04-30 | 1,091,991 | 1,067,080 | +24,911 | 3.69 |
| 2026-04-15 | 1,067,080 | 1,214,228 | -147,148 | 4.26 |
| 2026-03-31 | 1,214,228 | 1,008,034 | +206,194 | 3.39 |
| 2026-03-13 | 1,008,034 | 947,436 | +60,598 | 3.79 |
| 2026-02-27 | 947,436 | 950,646 | -3,210 | 3.08 |
| 2026-02-13 | 950,646 | 819,074 | +131,572 | 2.85 |
| 2026-01-30 | 819,074 | 792,425 | +26,649 | 3.34 |
| 2026-01-15 | 792,425 | 864,116 | -71,691 | 3.54 |
| 2025-12-31 | 864,116 | 898,989 | -34,873 | 5.25 |
| 2025-12-15 | 898,989 | 987,606 | -88,617 | 5.55 |
| 2025-11-28 | 987,606 | 867,843 | +119,763 | 5.59 |
| 2025-11-14 | 867,843 | 931,212 | -63,369 | 5.22 |
| 2025-10-31 | 931,212 | 1,118,321 | -187,109 | 2.93 |
| 2025-10-15 | 1,118,321 | 833,897 | +284,424 | 5.88 |
| 2025-09-30 | 833,897 | 1,105,449 | -271,552 | 3.76 |
| 2025-09-15 | 1,105,449 | 1,002,962 | +102,487 | 5.18 |
| 2025-08-29 | 1,002,962 | 1,001,100 | +1,862 | 4.00 |
| 2025-08-15 | 1,001,100 | 917,109 | +83,991 | 3.07 |
| 2025-07-31 | 917,109 | 894,308 | +22,801 | 2.96 |
| 2025-07-15 | 894,308 | 894,761 | -453 | 3.82 |
| 2025-06-30 | 894,761 | 890,787 | +3,974 | 1.83 |
| 2025-06-13 | 890,787 | 1,221,550 | -330,763 | 2.48 |
Showing 1–24 of 24 settlements