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VIOO · VANGUARD S&P SMALL-CAP 600 INDEX FUND · Short Interest ETF

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$128.14 +1.70 (+1.34%) At close · Oct 20
Volume · Oct 20 87.44K Avg daily vol (3M) 81.2K

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 →

VIOO Latest Reported Short Interest

FINRA reported 30,165 VIOO shares sold short as of the September 30, 2026 settlement date, an increase of 3,163 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

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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 30,165 27,002 +3,163 1.00
    2026-09-15 27,002 79,286 -52,284 1.00
    2026-08-31 79,286 37,312 +41,974 1.00
    2026-08-14 37,312 52,296 -14,984 1.00
    2026-07-31 52,296 63,046 -10,750 1.00
    2026-07-15 63,046 119,716 -56,670 1.00
    2026-06-30 119,716 65,118 +54,598 1.45
    2026-06-15 65,118 51,973 +13,145 1.00
    2026-05-29 51,973 48,210 +3,763 1.00
    2026-05-15 48,210 33,793 +14,417 1.00
    2026-04-30 33,793 52,553 -18,760 1.00
    2026-04-15 52,553 47,280 +5,273 1.00
    2026-03-31 47,280 10,582 +36,698 1.00
    2026-03-13 10,582 49,808 -39,226 1.00
    2026-02-27 49,808 56,913 -7,105 1.00
    2026-02-13 56,913 43,023 +13,890 1.00
    2026-01-30 43,023 18,939 +24,084 1.00
    2026-01-15 18,939 51,782 -32,843 1.00
    2025-12-31 51,782 115,613 -63,831 1.00
    2025-12-15 115,613 81,063 +34,550 1.22
    2025-11-28 81,063 26,474 +54,589 1.07
    2025-11-14 26,474 19,808 +6,666 1.00
    2025-10-31 19,808 4,396 +15,412 1.00

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements