Exact Sciences Corp
EXASDelisted Mar 23, 2026- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001124140
Exact Sciences Corp was delisted on Mar 23, 2026; its insiders filed their last Form 4 on Mar 23, 2026; 715 institutions reported holding it in 13F filings for Q4 2025, worth $17.9B in total; superinvestors Soros Fund Management and ARK Invest held it.
Four kinds of short-selling data, each measuring something different:
- Short interest: shares sold short and not yet bought back, as of a settlement date. FINRA publishes it twice a month, about eight business days after the settlement date.
- Daily short volume: shares sold short each day in off-exchange trades reported to FINRA. It counts trades, not open positions, and is published the next day.
- Fails-to-deliver: shares not delivered by the settlement date. The SEC publishes them twice a month, about two weeks late.
- ATS (dark pool) volume: weekly volume on alternative trading systems and other off-exchange venues. FINRA publishes it two to four weeks after the week.
More in the glossary.
Short interest
Shares sold short and not yet bought back, from FINRA, on every settlement date in the last two years.
- Short interest
- 7.84M
- Shares, settlement Mar 13, 2026
- Change
- +436.9K
- +5.9% vs. Feb 27, 2026
- Days to cover
- 3.54
- Short interest ÷ average daily volume
- Average daily volume
- 2.21M
- Shares, as reported by FINRA
| Settlement date | Short interest | Change | Change % | Avg. daily volume | Days to cover |
|---|---|---|---|---|---|
| Mar 13, 2026 | 7.84M | +436.9K | +5.9% | 2.21M | 3.54 |
| Feb 27, 2026 | 7.40M | +277.2K | +3.9% | 1.92M | 3.85 |
| Feb 13, 2026 | 7.12M | +474.2K | +7.1% | 2.30M | 3.09 |
| Jan 30, 2026 | 6.65M | −895.2K | −11.9% | 2.43M | 2.74 |
| Jan 15, 2026 | 7.54M | −993.8K | −11.6% | 2.42M | 3.12 |
| Dec 31, 2025 | 8.54M | +3.38M | +65.5% | 2.52M | 3.38 |
| Dec 15, 2025 | 5.16M | +59.6K | +1.2% | 6.50M | 1.00 |
| Nov 28, 2025 | 5.10M | −2.26M | −30.7% | 16.0M | 1.00 |
| Nov 14, 2025 | 7.36M | −575.9K | −7.3% | 3.62M | 2.03 |
| Oct 31, 2025 | 7.94M | −33.1K | −0.4% | 2.15M | 3.70 |
| Oct 15, 2025 | 7.97M | +1.25M | +18.7% | 1.99M | 4.00 |
| Sep 30, 2025 | 6.72M | −1.37M | −17.0% | 2.22M | 3.03 |
| Sep 15, 2025 | 8.09M | +751.2K | +10.2% | 3.20M | 2.53 |
| Aug 29, 2025 | 7.34M | −2.13M | −22.5% | 2.51M | 2.92 |
| Aug 15, 2025 | 9.46M | +2.59M | +37.6% | 5.13M | 1.85 |
| Jul 31, 2025 | 6.88M | −591.6K | −7.9% | 2.15M | 3.20 |
| Jul 15, 2025 | 7.47M | +451.8K | +6.4% | 2.42M | 3.08 |
| Jun 30, 2025 | 7.02M | −915.8K | −11.6% | 3.38M | 2.07 |
| Jun 13, 2025 | 7.93M | −2.74M | −25.7% | 2.33M | 3.40 |
| May 30, 2025 | 10.7M | −470.2K | −4.2% | 3.60M | 2.97 |
| May 15, 2025 | 11.1M | +1.02M | +10.1% | 3.62M | 3.08 |
| Apr 30, 2025 | 10.1M | −614.6K | −5.7% | 2.14M | 4.73 |
| Apr 15, 2025 | 10.7M | −435.3K | −3.9% | 3.29M | 3.27 |
| Mar 31, 2025 | 11.2M | +564.7K | +5.3% | 1.64M | 6.79 |
| Mar 14, 2025 | 10.6M | −60.7K | −0.6% | 2.29M | 4.63 |
| Feb 28, 2025 | 10.7M | +448.4K | +4.4% | 2.94M | 3.62 |
| Feb 14, 2025 | 10.2M | +284.0K | +2.9% | 1.59M | 6.41 |
| Jan 31, 2025 | 9.93M | −360.4K | −3.5% | 2.39M | 4.15 |
| Jan 15, 2025 | 10.3M | −395.5K | −3.7% | 2.37M | 4.35 |
| Dec 31, 2024 | 10.7M | −509.3K | −4.6% | 1.53M | 6.99 |
| Dec 13, 2024 | 11.2M | −631.8K | −5.3% | 1.92M | 5.82 |
| Nov 29, 2024 | 11.8M | −2.02M | −14.6% | 2.72M | 4.35 |
| Nov 15, 2024 | 13.8M | −215.9K | −1.5% | 4.89M | 2.83 |
| Oct 31, 2024 | 14.1M | −1.48M | −9.5% | 1.32M | 10.63 |
| Oct 15, 2024 | 15.5M | +1.51M | +10.7% | 1.53M | 10.14 |
| Sep 30, 2024 | 14.0M | −2.39M | −14.5% | 2.62M | 5.36 |
| Sep 13, 2024Revised | 16.4M | +1.86M | +12.8% | 3.12M | 5.26 |
| Aug 30, 2024 | 14.5M | +693.0K | +5.0% | 1.65M | 8.77 |
| Aug 15, 2024 | 13.8M | +222.6K | +1.6% | 3.18M | 4.35 |
| Jul 31, 2024 | 13.6M | −387.1K | −2.8% | 2.78M | 4.89 |
| Jul 15, 2024 | 14.0M | −233.0K | −1.6% | 2.14M | 6.54 |
| Jun 28, 2024 | 14.2M | +4.77M | +50.5% | 4.31M | 3.30 |
| Jun 14, 2024 | 9.45M | +664.4K | +7.6% | 2.08M | 4.55 |
| May 31, 2024 | 8.78M | +279.3K | +3.3% | 3.78M | 2.32 |
| May 15, 2024 | 8.50M | −374.2K | −4.2% | 3.51M | 2.42 |
| Apr 30, 2024 | 8.88M | −1.02M | −10.3% | 2.13M | 4.16 |
| Apr 15, 2024 | 9.89M | +3.55M | +56.0% | 3.76M | 2.63 |
| Mar 28, 2024 | 6.34M | −179.1K | −2.8% | 2.47M | 2.57 |
| Mar 15, 2024 | 6.52M | −519.6K | −7.4% | 1.77M | 3.68 |
Fails-to-deliver
Shares that weren't delivered by the settlement date, from the SEC, for the last 30 dates with fails. The price is the previous day's closing price published by the SEC.
| Settlement date | Shares | Price | Value |
|---|---|---|---|
| Mar 24, 2026 | 2,099 | $104.91 | $220.2K |
| Mar 23, 2026 | 6,494 | $104.91 | $681.3K |
| Mar 3, 2026 | 55,749 | $103.35 | $5.76M |
| Feb 13, 2026 | 20,470 | $103.23 | $2.11M |
| Jan 20, 2026 | 4,513 | $102.43 | $462.3K |
| Jan 16, 2026 | 37 | $102.34 | $3.79K |
| Jan 15, 2026 | 1,446 | $102.26 | $147.9K |
| Jan 14, 2026 | 508 | $102.25 | $51.9K |
| Jan 9, 2026 | 3 | $101.78 | $305.34 |
| Dec 30, 2025 | 4,813 | $101.93 | $490.6K |
| Dec 23, 2025 | 557,190 | $101.82 | $56.7M |
| Dec 16, 2025 | 34 | $101.74 | $3.46K |
| Dec 4, 2025 | 67 | $101.25 | $6.78K |
| Dec 3, 2025 | 2,309 | $101.20 | $233.7K |
| Dec 2, 2025 | 209 | $101.20 | $21.2K |
| Nov 26, 2025 | 9,100 | $101.13 | $920.3K |
| Nov 24, 2025 | 1,186 | $100.90 | $119.7K |
| Nov 21, 2025 | 19,786 | $100.67 | $1.99M |
| Nov 20, 2025 | 278 | $86.18 | $24.0K |
| Nov 17, 2025 | 100 | $67.03 | $6.70K |
| Nov 14, 2025 | 33,779 | $67.75 | $2.29M |
| Nov 12, 2025 | 9,076 | $67.50 | $612.6K |
| Nov 10, 2025 | 100 | $66.18 | $6.62K |
| Nov 6, 2025 | 13,471 | $69.63 | $938.0K |
| Nov 3, 2025 | 100 | $64.69 | $6.47K |
| Oct 28, 2025 | 242 | $63.50 | $15.4K |
| Oct 22, 2025 | 11,877 | $63.41 | $753.1K |
| Oct 20, 2025 | 1,628 | $61.23 | $99.7K |
| Oct 14, 2025 | 105,705 | $59.36 | $6.27M |
| Oct 10, 2025 | 195 | $59.46 | $11.6K |
Daily short volume
Off-exchange short-sale volume, not short interest: shares sold short each day in trades reported to FINRA, for the last 30 trading days.
The short volume ratio isn't a sentiment gauge: market makers sell short to fill buy orders and to hedge, so short sales are usually about half of off-exchange volume.
| Trade date | Short volume | Short exempt | Off-exchange volume | Short volume ratio |
|---|---|---|---|---|
| Mar 20, 2026 | 1,792,267 | 3,357 | 4,768,073 | 37.6% |
| Mar 19, 2026 | 332,069 | 45 | 719,220 | 46.2% |
| Mar 18, 2026 | 169,211 | 0 | 388,816 | 43.5% |
| Mar 17, 2026 | 222,635 | 401 | 564,093 | 39.5% |
| Mar 16, 2026 | 278,559 | 1 | 782,276 | 35.6% |
| Mar 13, 2026 | 308,301 | 707 | 883,250 | 34.9% |
| Mar 12, 2026 | 183,975 | 1,057 | 391,129 | 47.0% |
| Mar 11, 2026 | 216,621 | 1,256 | 449,989 | 48.1% |
| Mar 10, 2026 | 251,165 | 2,645 | 694,705 | 36.2% |
| Mar 9, 2026 | 360,303 | 170 | 889,770 | 40.5% |
| Mar 6, 2026 | 210,915 | 106 | 485,125 | 43.5% |
| Mar 5, 2026 | 294,837 | 254 | 526,285 | 56.0% |
| Mar 4, 2026 | 303,154 | 323 | 798,535 | 38.0% |
| Mar 3, 2026 | 173,917 | 676 | 961,349 | 18.1% |
| Mar 2, 2026 | 110,356 | 631 | 515,320 | 21.4% |
| Feb 27, 2026 | 219,717 | 404 | 873,406 | 25.2% |
| Feb 26, 2026 | 183,008 | 2,194 | 700,066 | 26.1% |
| Feb 25, 2026 | 292,060 | 62,310 | 942,150 | 31.0% |
| Feb 24, 2026 | 212,283 | 154 | 824,448 | 25.7% |
| Feb 23, 2026 | 96,534 | 83 | 592,338 | 16.3% |
| Feb 20, 2026 | 110,794 | 145 | 877,539 | 12.6% |
| Feb 19, 2026 | 139,340 | 1,034 | 741,464 | 18.8% |
| Feb 18, 2026 | 291,925 | 0 | 874,267 | 33.4% |
| Feb 17, 2026 | 262,422 | 310 | 864,075 | 30.4% |
| Feb 13, 2026 | 113,317 | 47 | 545,604 | 20.8% |
| Feb 12, 2026 | 186,572 | 447 | 713,429 | 26.2% |
| Feb 11, 2026 | 113,040 | 7,045 | 609,754 | 18.5% |
| Feb 10, 2026 | 82,471 | 395 | 837,179 | 9.9% |
| Feb 9, 2026 | 121,313 | 350 | 1,501,974 | 8.1% |
| Feb 6, 2026 | 298,143 | 31,287 | 1,629,869 | 18.3% |
ATS (dark pool) volume
Weekly volume on alternative trading systems (ATS) and other off-exchange (OTC) venues, from FINRA, for the last 12 weeks. ATS share is ATS volume ÷ (ATS + OTC volume), not a share of all trading.
| Week of | Tier | ATS shares | ATS trades | Other OTC shares | Other OTC trades | ATS share |
|---|---|---|---|---|---|---|
| Mar 16, 2026 | T1 | 4,172,137 | 40,329 | 4,617,087 | 6,939 | 47.5% |
| Mar 9, 2026 | T1 | 2,378,227 | 36,594 | 1,568,835 | 6,802 | 60.3% |
| Mar 2, 2026 | T1 | 2,101,926 | 36,477 | 2,461,890 | 7,166 | 46.1% |
| Feb 23, 2026 | T1 | 2,575,207 | 37,620 | 2,009,305 | 8,724 | 56.2% |
| Feb 16, 2026 | T1 | 1,689,640 | 28,635 | 2,218,189 | 5,751 | 43.2% |
| Feb 9, 2026 | T1 | 1,983,023 | 29,209 | 2,484,832 | 6,184 | 44.4% |
| Feb 2, 2026 | T1 | 2,855,654 | 37,605 | 2,661,272 | 8,671 | 51.8% |
| Jan 26, 2026 | T1 | 1,816,167 | 34,943 | 3,789,380 | 6,729 | 32.4% |
| Jan 19, 2026 | T1 | 2,093,824 | 29,290 | 4,060,578 | 6,035 | 34.0% |
| Jan 12, 2026 | T1 | 2,056,203 | 31,451 | 3,111,912 | 7,232 | 39.8% |
| Jan 5, 2026 | T1 | 3,617,168 | 39,584 | 4,493,899 | 9,056 | 44.6% |
| Dec 29, 2025 | T1 | 1,359,090 | 21,125 | 1,447,797 | 4,997 | 48.4% |