Spero Therapeutics is trading 5.16% lower at $1.20 on October 2, 2026, with no clear company-specific catalyst identified in available search results.
- Surfaced company news was earlier, not a new October 2 announcement.
- Broader markets were reported higher, offering no clear explanation for the stock’s decline.
- Volume information was unavailable in the provided price context; supplied price data is authoritative.