Quest Diagnostics Inc. short interest
Short interest in Quest Diagnostics Inc. was 3.4 million shares at the 31 August 2026 settlement, up 3.7% on the previous settlement, with 3.86 days to cover at an average daily volume of 893,699 shares, as reported to FINRA.
| Settlement | Shares short | Change | Average daily volume | Days to cover |
|---|---|---|---|---|
| 31 August 2026 | 3,445,561 | +3.7% | 893,699 | 3.86 |
| 14 August 2026 | 3,321,414 | -9.8% | 711,512 | 4.67 |
| 31 July 2026 | 3,684,192 | +5.0% | 1,344,732 | 2.74 |
| 15 July 2026 | 3,509,407 | -6.0% | 823,847 | 4.26 |
| 30 June 2026 | 3,732,507 | +9.2% | 971,160 | 3.84 |
| 15 June 2026 | 3,419,621 | -0.3% | 802,904 | 4.26 |
| 29 May 2026 | 3,430,849 | -7.7% | 822,173 | 4.17 |
| 15 May 2026 | 3,715,019 | +9.6% | 744,798 | 4.99 |
| 30 April 2026 | 3,389,572 | -4.6% | 1,310,134 | 2.59 |
| 15 April 2026 | 3,551,568 | -14.9% | 771,838 | 4.60 |
| 31 March 2026 | 4,174,813 | +7.8% | 936,713 | 4.46 |
| 13 March 2026 | 3,871,587 | -0.0% | 744,853 | 5.20 |
FINRA publishes consolidated short interest twice a month, about ten days after each settlement. Days to cover is shares short over average daily volume. Short interest as a share of the float is not shown: the float is not in the public record.
Source
FINRA equity short interest data, the public dataset.
The same record on your computer
GreekSoup is also a free program for your own computer. It reads these same filings for the names you follow, refreshed as they land, with no account. One pasted line installs it.