RYTM
Rhythm Pharmaceuticals, Inc. Common Stock
stockNASDAQ
At CloseOct 2, 2026 3:59:59 PM EDT
92.79USD-0.664%(-0.62)503,543
Pre-marketOct 2, 2026 8:41:30 AM EDT
94.99USD+1.691%(+1.58)
As of 2026-09-15, there were 10,287,811 shares short with a short interest of 18.39%.
RYTM Short Interest - Official
Short Interest
RYTM Short Position Change - Official
Short Position Change
RYTM Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | 18.39 | 10,287,811 | 20.06 | -15,220 | -0.15 | 68,852,082 | 55,931,300 |
| 2026-08-31 | 18.42 | 10,303,031 | 21.89 | +148,704 | +1.46 | 68,852,082 | 55,931,300 |
| 2026-08-14 | 18.15 | 10,154,327 | 12.24 | +713,910 | +7.56 | 68,852,082 | 55,931,300 |
| 2026-07-31 | 16.96 | 9,440,417 | 16.17 | -134,110 | -1.40 | 68,593,574 | 55,671,778 |
| 2026-07-15 | 17.20 | 9,574,527 | 13.74 | -90,562 | -0.94 | 68,593,574 | 55,671,778 |
| 2026-06-30 | 17.36 | 9,665,089 | 7.57 | +1,659,786 | +20.73 | 68,593,574 | 55,674,519 |
| 2026-06-15 | 14.37 | 8,005,303 | 11.58 | -277,064 | -3.35 | 68,593,574 | 55,697,820 |
| 2026-05-15 | 14.87 | 8,282,367 | 8.28 | +224,715 | +2.79 | 68,532,607 | 55,697,135 |
| 2026-04-30 | 12.93 | 8,057,652 | 14.55 | +226,740 | +2.90 | 68,530,107 | 62,333,853 |
| 2026-04-15 | 12.56 | 7,830,912 | 12.81 | +205,999 | +2.70 | 68,285,039 | 62,333,853 |
| 2026-03-31 | 12.23 | 7,624,913 | 5.93 | +1,089,066 | +16.66 | 68,285,039 | 62,333,853 |
| 2026-03-13 | 10.49 | 6,535,847 | 7.59 | +214,085 | +3.39 | 68,285,039 | 62,333,853 |
| 2026-02-27 | 10.14 | 6,321,762 | 9.10 | +299,184 | +4.97 | 66,736,056 | 62,333,853 |
| 2026-02-13 | 9.66 | 6,022,578 | 7.90 | -214,885 | -3.45 | 66,736,056 | 62,333,853 |
| 2026-01-30 | 10.01 | 6,237,463 | 11.80 | -47,539 | -0.76 | 66,736,056 | 62,333,853 |
| 2026-01-15 | 10.08 | 6,285,002 | 9.87 | +84,624 | +1.36 | 66,736,056 | 62,333,853 |
| 2025-12-31 | 9.95 | 6,200,378 | 8.04 | +619,254 | +11.10 | 66,736,056 | 62,333,853 |
| 2025-12-15 | 8.95 | 5,581,124 | 4.98 | +62,519 | +1.13 | 66,736,056 | 62,333,853 |
| 2025-11-28 | 8.85 | 5,518,605 | 8.53 | +16,559 | +0.30 | 66,736,056 | 62,333,853 |
| 2025-11-14 | 9.98 | 5,502,046 | 7.00 | +271,450 | +5.19 | 66,736,056 | 55,119,978 |
| 2025-10-31 | 9.54 | 5,230,596 | 9.24 | -343,650 | -6.16 | 66,420,091 | 54,803,881 |
| 2025-10-15 | 10.17 | 5,574,246 | 10.56 | -4,215 | -0.08 | 66,420,091 | 54,803,881 |
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.