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BILS · State Street(R) SPDR(R) Bloomberg 3-12 Month T-Bill ETF · Short Interest ETF

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$99.33 +0.03 (+0.03%) At close · Oct 23
Volume · Oct 23 317.94K Avg daily vol (3M) 333.06K

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 →

BILS Latest Reported Short Interest

FINRA reported 364,589 BILS shares sold short as of the September 30, 2026 settlement date, an increase of 59,246 shares. Days to cover was 1.07 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
    		 — — — —
    2026-09-30 364,589 305,343 +59,246 1.07
    2026-09-15 305,343 206,423 +98,920 1.00
    2026-08-31 206,423 114,930 +91,493 1.00
    2026-08-14 114,930 133,523 -18,593 1.00
    2026-07-31 133,523 220,867 -87,344 1.00
    2026-07-15 220,867 35,965 +184,902 1.00
    2026-06-30 35,965 36,540 -575 1.00
    2026-06-15 36,540 69,498 -32,958 1.00
    2026-05-29 69,498 60,795 +8,703 1.00
    2026-05-15 60,795 128,635 -67,840 1.00
    2026-04-30 128,635 6,750 +121,885 1.00
    2026-04-15 6,750 106,796 -100,046 1.00
    2026-03-31 106,796 164,321 -57,525 1.00
    2026-03-13 164,321 41,456 +122,865 1.00
    2026-02-27 41,456 40,469 +987 1.00
    2026-02-13 40,469 44,537 -4,068 1.00
    2026-01-30 44,537 18,220 +26,317 1.00
    2026-01-15 18,220 91,128 -72,908 1.00
    2025-12-31 91,128 17,490 +73,638 1.00
    2025-12-15 17,490 15,790 +1,700 1.00
    2025-11-28 15,790 99,446 -83,656 1.00
    2025-11-14 99,446 72,327 +27,119 1.00
    2025-10-31 72,327 68,094 +4,233 1.00

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements