CSGP · Costar Group, Inc. · Short Volume
$27.45
+0.05 (+0.18%)
At close · Oct 1
Return incl. dividend (before tax)
Market Cap
$11.04B
Shares
405.20M
Volume · Sep 30
6.69M
Avg daily vol (3M)
6.99M
Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.
Short Volume
| Date | Short Volume | Short Exempt | Total Volume | Short % |
|---|---|---|---|---|
| 2026-09-30 | 773,582 | 1,627 | 2,203,872 | 35.1% |
| 2026-09-29 | 645,926 | 473 | 2,096,388 | 30.8% |
| 2026-09-28 | 511,532 | 0 | 1,699,982 | 30.1% |
| 2026-09-25 | 596,045 | 0 | 2,288,640 | 26.0% |
| 2026-09-24 | 719,420 | 18,122 | 1,752,766 | 41.0% |
| 2026-09-23 | 825,877 | 6,112 | 2,103,131 | 39.3% |
| 2026-09-22 | 575,161 | 4,925 | 1,700,772 | 33.8% |
| 2026-09-21 | 660,092 | 133 | 1,708,191 | 38.6% |
| 2026-09-18 | 534,093 | 304 | 1,855,822 | 28.8% |
| 2026-09-17 | 584,159 | 51 | 1,340,428 | 43.6% |
| 2026-09-16 | 584,645 | 169 | 1,222,722 | 47.8% |
| 2026-09-15 | 1,424,244 | 371 | 2,361,615 | 60.3% |
| 2026-09-14 | 1,088,791 | 55,878 | 2,134,566 | 51.0% |
| 2026-09-11 | 1,632,022 | 13,446 | 2,779,534 | 58.7% |
| 2026-09-10 | 1,635,611 | 307 | 3,221,590 | 50.8% |
| 2026-09-09 | 701,624 | 1,104 | 1,569,339 | 44.7% |
| 2026-09-08 | 1,031,766 | 0 | 2,164,499 | 47.7% |
| 2026-09-04 | 547,782 | 100 | 1,392,201 | 39.3% |
| 2026-09-03 | 775,868 | 100 | 1,734,950 | 44.7% |
| 2026-09-02 | 1,093,217 | 131 | 1,864,540 | 58.6% |
| 2026-09-01 | 974,668 | 2,538 | 2,227,057 | 43.8% |
| 2026-08-31 | 2,343,639 | 0 | 4,510,876 | 52.0% |
| 2026-08-28 | 938,879 | 7,925 | 1,966,799 | 47.7% |
| 2026-08-27 | 901,800 | 0 | 2,292,088 | 39.3% |
| 2026-08-26 | 927,199 | 2,286 | 1,933,133 | 48.0% |
| 2026-08-25 | 955,033 | 3,274 | 1,587,825 | 60.1% |
| 2026-08-24 | 1,122,493 | 4,610 | 2,007,837 | 55.9% |
| 2026-08-21 | 928,057 | 668 | 2,115,729 | 43.9% |
| 2026-08-20 | 1,416,823 | 26,384 | 2,918,882 | 48.5% |
| 2026-08-19 | 1,429,881 | 5,057 | 2,584,278 | 55.3% |
| 2026-08-18 | 806,170 | 8,526 | 1,432,788 | 56.3% |
| 2026-08-17 | 1,177,419 | 2,163 | 1,983,822 | 59.4% |
| 2026-08-14 | 1,466,582 | 113 | 2,404,481 | 61.0% |
| 2026-08-13 | 1,620,455 | 6,855 | 2,862,444 | 56.6% |
| 2026-08-12 | 659,402 | 105 | 1,571,479 | 42.0% |
| 2026-08-11 | 718,632 | 0 | 1,374,018 | 52.3% |
| 2026-08-10 | 1,299,215 | 82 | 2,406,032 | 54.0% |
| 2026-08-07 | 718,979 | 1,100 | 1,854,079 | 38.8% |
| 2026-08-06 | 720,627 | 122 | 1,923,672 | 37.5% |
| 2026-08-05 | 1,025,211 | 2,366 | 2,376,885 | 43.1% |
| 2026-08-04 | 1,009,318 | 296 | 1,997,705 | 50.5% |
| 2026-08-03 | 1,077,310 | 55,638 | 2,367,800 | 45.5% |
| 2026-07-31 | 1,434,602 | 5,572 | 2,842,443 | 50.5% |
| 2026-07-30 | 2,406,045 | 52,752 | 5,423,385 | 44.4% |
| 2026-07-29 | 2,469,518 | 35,859 | 7,344,865 | 33.6% |
| 2026-07-28 | 1,383,928 | 43,995 | 3,667,185 | 37.7% |
| 2026-07-27 | 1,523,176 | 5,280 | 3,656,721 | 41.7% |
| 2026-07-24 | 1,139,157 | 106,478 | 3,036,687 | 37.5% |
| 2026-07-23 | 1,396,380 | 74,283 | 2,514,408 | 55.5% |
| 2026-07-22 | 1,416,056 | 1,715 | 2,493,265 | 56.8% |
Showing 1–50 of 64 days
Key facts
CIK
1057352
CUSIP
22160N109
13F (30d)
18 filings
14 filers
Visit website
Investor relations