2.16 USD
↗ 0.90 (71.43%)PRE MARKET (AS OF 05:29 AM EDT)
SPRO Stock Premarket
Spero Therapeutics, Inc. Common Stock
SPRONASDAQ • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
SPRO last traded at $2.16 in premarket, up $0.90 (71.43%) from its previous close of $1.26.
📅 SPRO is expected to report earnings around Aug 12, 2026 (estimated), with an estimated EPS of $-0.17. SPRO earnings details →
SPRO Premarket Chart
SPRO Premarket News
Gap Analytics — 5-year history, 5% minimum gap
No qualifying gap events found for SPRO.
Frequently Asked Questions
What is SPRO's premarket price?
Spero Therapeutics (SPRO) is trading at $2.16 in premarket, up $0.90 (71.43%) from the previous close of $1.26.
Why is SPRO moving in premarket?
Spero Therapeutics (SPRO) is up 71.43% from its previous close in premarket trading. Premarket moves are usually driven by company-specific news, earnings results, analyst rating or price-target changes, or broad market and sector sentiment. Check the latest SPRO premarket headlines and gap history below for the likely catalyst.
When does SPRO premarket trading start?
Premarket trading for SPRO on the NASDAQ runs from 4:00 AM to 9:30 AM Eastern Time, ahead of the regular session (9:30 AM – 4:00 PM ET). After-hours runs from 4:00 PM to 8:00 PM ET.
When does SPRO report earnings?
SPRO is expected to report earnings around Aug 12, 2026 (estimated), with an estimated EPS of $-0.17.