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BUCK · Simplify Treasury Option Income ETF · Short Interest ETF

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$23.11 -0.04 (-0.17%)
Volume · Oct 21 31.79K Avg daily vol (3M) 210.75K

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

Pull short interest history through the short interest API or MCP →

BUCK Latest Reported Short Interest

FINRA reported 399,361 BUCK shares sold short as of the September 30, 2026 settlement date, an increase of 90,221 shares. Days to cover was 1.51 based on FINRA's reported average daily volume.

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

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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-10-30 Scheduled
    FINRA publishes Nov 10
    		 — — — —
    2026-10-15 Scheduled
    FINRA publishes Oct 26
    		 — — — —
    2026-09-30 399,361 309,140 +90,221 1.51
    2026-09-15 309,140 328,452 -19,312 1.24
    2026-08-31 328,452 270,335 +58,117 1.59
    2026-08-14 270,335 285,965 -15,630 1.49
    2026-07-31 285,965 371,121 -85,156 1.81
    2026-07-15 371,121 356,746 +14,375 2.42
    2026-06-30 356,746 353,261 +3,485 1.28
    2026-06-15 353,261 311,277 +41,984 2.37
    2026-05-29 311,277 347,859 -36,582 2.28
    2026-05-15 347,859 441,034 -93,175 2.67
    2026-04-30 441,034 332,342 +108,692 3.35
    2026-04-15 332,342 271,229 +61,113 2.14
    2026-03-31 271,229 294,894 -23,665 1.86
    2026-03-13 294,894 369,568 -74,674 1.43
    2026-02-27 369,568 266,555 +103,013 2.09
    2026-02-13 266,555 261,516 +5,039 1.00
    2026-01-30 261,516 324,693 -63,177 1.00
    2026-01-15 324,693 274,775 +49,918 2.29
    2025-12-31 274,775 267,547 +7,228 1.51
    2025-12-15 267,547 258,590 +8,957 1.97
    2025-11-28 258,590 256,864 +1,726 1.56
    2025-11-14 256,864 325,236 -68,372 2.08
    2025-10-31 325,236 325,720 -484 2.34

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements