stockNASDAQ: SPRO • Today's Updates
Spero Therapeutics Inc. (SPRO) Today Close
Showing Closing Date Range from Oct 7 to Oct 8, 2026.
Investor Relations:investors.sperotherapeutics.com
NASDAQ MarketOfficial Close Wall Street: 9:42 PM ET
Today's Session Settled & Finalized
Official market closing rate settled for Oct 08, 2026. Next session begins at 9:30 AM ET.
Multi-Day Trends:View 28-Day Chart
Started At
Market Open Opening price at session start (9:30 AM ET)
$1.20
Opening Gap+$0.03(+2.56%)
Closed At
OFFICIAL CLOSESettled close for Oct 08, 2026
$1.14
Session DateOct 08, 2026
Lost Today
LOSS Net movement vs previous close
$-0.03 (-2.56%)
Intraday (from open)$-0.06 (-5.00%)
Day's High & Low Range
Session Low
$1.13
Session High
$1.22
Low ($1.13)Closed At ($1.14)High ($1.22)
Trading Activity & Liquidity
Shares Traded
718.8K
718,836 shares
Dollar Volume
$819.5K
Close × Volume traded
Session Turnover$819.5K USD
Session Statistics Breakdown
Key opening, settlement, and trading metrics for Spero Therapeutics Inc. (SPRO).
Oct 08, 2026
Started At (Open)
$1.20
Previous Close
$1.17
Session High
$1.22
Session Low
$1.13
Closed At
$1.14
Gained / Lost ($)
$-0.03
Gained / Lost (%)
-2.56%
Day's Spread
$0.09