SPRO
Spero Therapeutics, Inc. Common Stock
stockNASDAQ
At CloseOct 2, 2026 3:59:56 PM EDT
1.19USD-5.556%(-0.07)906,916
Pre-marketOct 2, 2026 8:37:30 AM EDT
1.25USD-0.794%(-0.01)
After-hoursOct 2, 2026 4:01:30 PM EDT
1.20USD+0.840%(+0.01)
SPRO’s Short Volume on 2026-10-02 was 156,608, which is 38.23% of the day’s total reported volume. Over the past 30 days, the average Short Volume has been 35.76%. Short volume is the FINRA-reported daily short-sale volume — distinct from short interest, the standing position.
SPRO Short Volume by Venue
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SPRO Short Volume by Venue
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SPRO Short Volume · History
Historical data is split-adjusted.
2 Total from available short volume files. Not every exchange reports the daily short volume free of charge (or at all), so total volume in this table will be less than the daily volume at the top of the page. Volume for trades during regular trading hours.
3 FINRA short data reported after market close (4pm ET).
4 Cboe stopped publishing short volume on June 30, 2023.
5 Nasdaq short data reported after market close (4pm ET).
6 NYSE short data reported after trading day close (8pm ET).