{"ticker": {"uuid": "2d51f6c2-5cb5-4af5-9a28-30a231af2d6a", "symbol": "SPRO", "name": "Spero Therapeutics Inc", "exchange": "NASDAQ", "asset_type": "equity"}, "latest_week": "2026-06-12", "summary": "SPRO closed the latest completed week at 2.85 USD. The 4-week return is 2.2% and the 12-week return is 20.3%. Trend Signal is active, Market Dynamics is 1.27.", "description": "Spero Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on identifying, developing, and commercializing novel treatments for multidrug resistant (MDR) bacterial infections and rare diseases in the United States. 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