RBBN
Ribbon Communications Inc. Common Stock
stockNASDAQ
Market OpenNov 13, 2026 1:31:02 PM EST
1.43USD-1.034%(-0.02)146,657
As of 2026-10-30, there were 5,110,819 shares short with a short interest of 3.53%.
RBBN Short Interest - Official
RBBN Short Position Change - Official
RBBN Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-10-30 | 3.53 | 5,110,819 | 3.56 | -93,404 | -1.79 | 179,173,611 | 144,820,969 |
| 2026-10-15 | 3.60 | 5,204,223 | 3.40 | +191,551 | +3.82 | 178,823,352 | 144,537,266 |
| 2026-09-30 | 3.48 | 5,012,672 | 4.02 | -120,491 | -2.35 | 178,823,352 | 144,014,745 |
| 2026-09-15 | 3.56 | 5,133,163 | 7.07 | +408,647 | +8.65 | 178,823,352 | 144,014,745 |
| 2026-08-31 | 3.28 | 4,724,516 | 7.08 | +301,093 | +6.81 | 178,823,352 | 144,014,745 |
| 2026-08-14 | 3.07 | 4,423,423 | 7.40 | +389,391 | +9.65 | 178,823,352 | 144,014,745 |
| 2026-07-31 | 2.84 | 4,034,032 | 4.85 | -127,531 | -3.06 | 176,139,067 | 141,853,191 |
| 2026-07-15 | 2.93 | 4,161,563 | 5.05 | +511,700 | +14.02 | 176,139,067 | 141,879,259 |
| 2026-06-30 | 2.57 | 3,649,863 | 4.24 | -178,338 | -4.66 | 176,139,067 | 141,879,259 |
| 2026-06-15 | 2.69 | 3,828,201 | 4.80 | +283,458 | +8.00 | 176,139,067 | 142,159,320 |
| 2026-05-15 | 2.46 | 3,544,743 | 5.20 | +120,173 | +3.51 | 176,139,067 | 143,819,783 |
| 2026-04-30 | 2.38 | 3,424,570 | 2.98 | +232,340 | +7.28 | 175,507,629 | 143,673,459 |
| 2026-04-15 | 2.22 | 3,192,230 | 3.06 | +40,264 | +1.28 | 175,604,524 | 143,673,459 |
| 2026-03-31 | 2.19 | 3,151,966 | 5.90 | +147,409 | +4.91 | 175,604,524 | 143,673,459 |
| 2026-03-13 | 2.09 | 3,004,557 | 3.93 | -364,667 | -10.82 | 175,604,524 | 143,673,459 |
| 2026-02-27 | 2.35 | 3,369,224 | 3.16 | -337,915 | -9.12 | 176,599,590 | 143,673,459 |
| 2026-02-13 | 2.58 | 3,707,139 | 2.39 | +212,986 | +6.10 | 176,599,590 | 143,673,459 |
| 2026-01-30 | 2.43 | 3,494,153 | 8.03 | +116,329 | +3.44 | 176,599,590 | 143,673,459 |
| 2026-01-15 | 2.35 | 3,377,824 | 5.62 | +25,314 | +0.76 | 176,599,590 | 143,673,459 |
| 2025-12-31 | 2.33 | 3,352,510 | 5.79 | +134,331 | +4.17 | 176,599,590 | 143,673,459 |
| 2025-12-15 | 2.24 | 3,218,179 | 4.57 | +82,044 | +2.62 | 176,599,590 | 143,673,459 |
| 2025-11-28 | 2.18 | 3,136,135 | 4.20 | -119,065 | -3.66 | 176,599,590 | 143,673,459 |
| 2025-11-14 | 2.27 | 3,255,200 | 4.85 | +119,716 | +3.82 | 176,599,590 | 143,444,782 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.