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Rhythm Pharmaceuticals, Inc. (RYTM): Short Interest History

The most recent FINRA short interest report for RYTM (settlement date August 14, 2026) shows 10,154,327 shares sold short , a change of 7.56% from the prior report .

Days to cover: 12.24.

FINRA settlement history

Settlement date Short interest Change Avg daily volume Days to cover
Aug 14, 2026 10,154,327 7.56% 829,841 12.24
Jul 31, 2026 9,440,417 -1.40% 583,684 16.17
Jul 15, 2026 9,574,527 -0.94% 696,954 13.74
Jun 30, 2026 9,665,089 20.73% 1,275,960 7.57
Jun 15, 2026 8,005,303 1.19% 691,418 11.58
May 29, 2026 7,911,004 -4.48% 535,388 14.78
May 15, 2026 8,282,367 2.79% 1,000,436 8.28
Apr 30, 2026 8,057,652 2.90% 553,925 14.55
Apr 15, 2026 7,830,912 2.70% 611,253 12.81
Mar 31, 2026 7,624,913 16.66% 1,284,776 5.93
Mar 13, 2026 6,535,847 3.39% 861,136 7.59
Feb 27, 2026 6,321,762 4.97% 694,357 9.10
Feb 13, 2026 6,022,578 -3.45% 762,478 7.90
Jan 30, 2026 6,237,463 -0.76% 528,760 11.80
Jan 15, 2026 6,285,002 1.36% 636,899 9.87
Dec 31, 2025 6,200,378 11.10% 771,443 8.04
Dec 15, 2025 5,581,124 1.13% 1,121,309 4.98
Nov 28, 2025 5,518,605 0.30% 647,265 8.53
Nov 14, 2025 5,502,046 5.19% 785,650 7.00
Oct 31, 2025 5,230,596 -6.16% 566,004 9.24
Oct 15, 2025 5,574,246 -0.08% 528,085 10.56
Sep 30, 2025 5,578,461 6.85% 712,661 7.83
Sep 15, 2025 5,220,961 5.05% 609,141 8.57
Aug 29, 2025 4,969,794 6.32% 507,237 9.80

Frequently asked questions

What is short interest in RYTM?

Short interest is the total number of RYTM shares currently sold short but not yet covered or closed out. FINRA publishes this data twice monthly.

How is RYTM short interest calculated?

Short interest is aggregated from member firm reports to FINRA. Every U.S. broker-dealer must report aggregate short positions in each security as of the 15th and last trading day of each month.

What does a high short interest mean?

Higher short interest can indicate bearish sentiment, but it also raises the potential for a short squeeze if positive news forces short sellers to cover their positions simultaneously. Compare short interest to float (short percent of float) for context.

Source: FINRA short interest reports, published bi-monthly.

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