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XBI · State Street(R) SPDR(R) S&P(R) Biotech ETF ETF

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$163.81 -0.57 (-0.35%) At close · Sep 4

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

XBI Latest Reported Short Interest

FINRA reported 77,134,345 XBI shares sold short as of the August 14, 2026 settlement date, a decrease of 1,713,577 shares. Days to cover was 10.39 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
    2026-09-15 Scheduled
    FINRA publishes Sep 24
    		 — — — —
    2026-08-31 Scheduled
    FINRA publishes Sep 10
    		 — — — —
    2026-08-14 77,134,345 78,847,922 -1,713,577 10.39
    2026-07-31 78,847,922 75,109,557 +3,738,365 9.52
    2026-07-15 75,109,557 75,148,378 -38,821 8.34
    2026-06-30 75,148,378 79,068,702 -3,920,324 6.30
    2026-06-15 79,068,702 76,993,110 +2,075,592 9.09
    2026-05-29 76,993,110 74,341,107 +2,652,003 9.72
    2026-05-15 74,341,107 74,759,404 -418,297 8.73
    2026-04-30 74,759,404 73,334,898 +1,424,506 10.24
    2026-04-15 73,334,898 85,442,601 -12,107,703 7.59
    2026-03-31 85,442,601 76,727,653 +8,714,948 8.10
    2026-03-13 76,727,653 76,616,433 +111,220 7.35
    2026-02-27 76,616,433 76,806,715 -190,282 8.42
    2026-02-13 76,806,715 78,134,359 -1,327,644 9.00
    2026-01-30 78,134,359 80,184,169 -2,049,810 8.82
    2026-01-15 80,184,169 77,756,282 +2,427,887 7.08
    2025-12-31 77,756,282 80,476,208 -2,719,926 10.08
    2025-12-15 80,476,208 76,120,323 +4,355,885 7.82
    2025-11-28 76,120,323 76,138,417 -18,094 7.46
    2025-11-14 76,138,417 68,946,860 +7,191,557 5.80
    2025-10-31 68,946,860 72,301,700 -3,354,840 6.99
    2025-10-15 72,301,700 77,523,328 -5,221,628 6.81
    2025-09-30 77,523,328 73,052,302 +4,471,026 7.75
    2025-09-15 73,052,302 74,788,083 -1,735,781 7.40

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements