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SYBX · Synlogic, Inc. · Short Interest

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$0.62 +0.06 (+10.71%) At close · Jan 21
Market Cap
$14.70M
Shares
12.25M
Volume · Jan 21 347.7K Avg daily vol (3M) 104.69K

Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.

SYBX Latest Reported Short Interest

FINRA reported 36,009 SYBX shares sold short as of the July 31, 2026 settlement date, an increase of 3,627 shares. Days to cover was 1.00 based on FINRA's reported average daily volume.

Official FINRA short-interest data · share counts are restated for subsequent splits of this listing

Options positioning & squeeze sensitivity

Nearest expiration after today within 30 calendar days; same-day expirations and later maturities are excluded.

No active listed options were found.

Open interest has both a buyer and a seller; it does not reveal dealer hedge direction. Gross gamma sums both calls and puts without netting and uses a local 1% price-change approximation. It measures sensitivity, not predicted buying or a squeeze probability.

Assessment prepared 2026-10-06 23:23 UTC. Options model values may come from a cached snapshot; their original computation time is not supplied. Open interest has its own effective date.

Short Interest History

Settlement Date Current Position Previous Position Change Days to Cover
2026-10-15 Scheduled
FINRA publishes Oct 26
— — — —
2026-09-30 Scheduled
FINRA publishes Oct 9
— — — —
2026-07-31 36,009 32,382 +3,627 1.00
2026-07-15 32,382 3,076 +29,306 1.10
2026-06-30 3,076 3,059 +17 1.00
2026-06-15 3,059 3,243 -184 1.00
2026-05-29 3,243 3,059 +184 1.00
2026-05-15 3,059 3,198 -139 1.00
2026-04-30 3,198 3,334 -136 1.00
2026-04-15 3,334 12,075 -8,741 1.00
2026-03-31 12,075 12,132 -57 1.00
2026-03-13 12,132 12,132 0 1.00
2026-02-27 12,132 12,932 -800 3.30
2026-02-13 12,932 35,112 -22,180 1.00
2026-01-30 35,112 7,729 +27,383 1.00
2026-01-15 7,729 10,406 -2,677 1.00
2025-12-31 10,406 9,485 +921 1.00
2025-12-15 9,485 15,427 -5,942 1.00
2025-11-28 15,427 27,494 -12,067 1.00
2025-11-14 27,494 39,631 -12,137 1.00
2025-10-31 39,631 35,153 +4,478 1.00
2025-10-15 35,153 33,645 +1,508 1.52

Full FINRA short interest reporting calendar

Showing 1–20 of 20 settlements
Key facts CIK 1527599 CUSIP 87166L209 Visit website Investor relations