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SPROPenny Stock
Spero Therapeutics, Inc. — live penny stock scanner data, RVOL, VWAP, and vibe signals.
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Reading today's tape on SPRO…
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About Spero Therapeutics, Inc. (SPRO)
Spero Therapeutics Inc is a clinical-stage biopharmaceutical firm. It focuses on identifying, developing, and commercializing novel treatments for MDR (Multi-drug-resistant) bacterial infections and rare diseases. The company's product candidate, tebipenem pivoxil hydrobromide or tebipenem HBr, is designed to be an oral carbapenem-class antibiotic for use in adults to treat MDR Gram-negative infections. It is also developing SPR720, a novel oral antibiotic designed for the treatment of a rare, orphan disease caused by pulmonary non-tuberculous mycobacterial infections, or NTM disease. It is also focused on SPR206, a next-generation polymyxin investigational product candidate being developed as an IV-administered medicine to treat MDR Gram-negative infections in the hospital.
SPRO trades on NASDAQ and is tracked by the PennyStock.Ninja real-time scanner. The scanner monitors SPRO for premarket gaps, unusual relative volume (RVOL), VWAP reclaims and rejections, and vibe signals such as the Surfer breakout, Ninja stealth accumulation, and Fade caution patterns. Biotech and healthcare names like this one are highly catalyst-driven — FDA decisions, clinical trial results, and PDUFA dates can move the stock 50-200% in a single session, so position sizing and stop discipline matter more here than in any other sector.
What to watch on SPRO
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Frequently asked questions about SPRO
Why is SPRO moving today?
SPRO (Spero Therapeutics, Inc.) moves on relative volume (RVOL), VWAP behavior, sector rotation, and catalysts like earnings, FDA decisions, contract wins, or unusual options flow. See the live "Why is SPRO moving today?" panel above for an auto-generated read on today's tape, and the news section for current headlines.
Is SPRO a good penny stock to buy?
PennyStock.Ninja does not give buy or sell recommendations on SPRO. We give you the data — live RVOL, VWAP, float, short interest, analyst consensus, and vibe signals — so you can make your own decision. Always do your own research and never risk more than you can afford to lose.
What is SPRO's RVOL and why does it matter?
RVOL compares SPRO's current volume to its 30-day average. RVOL above 3× often signals a real catalyst — but watch the price action. High RVOL with the stock dumping below VWAP is distribution, not opportunity.
When does SPRO report earnings?
Earnings dates for SPRO are tracked in the PennyStock.Ninja scanner. See the "Upcoming Catalysts" panel above for the scanner's current estimate. Spero Therapeutics, Inc. typically reports quarterly; check the company's investor relations page for the next confirmed date.
What is SPRO's float and short interest?
SPRO float is shown in the "Short Interest & Float" panel above. Low-float names (under 75M shares) with elevated short interest can squeeze violently — always check both before sizing into a momentum trade. Live short interest, days-to-cover, and the Ninja Squeeze Score are members-only.
How can I get alerts on SPRO?
Sign up for a free 7-day PennyStock.Ninja trial (no credit card required) to set real-time alerts on SPRO for premarket gaps, RVOL spikes, VWAP reclaims, halts, and Ninja vibe signals.
Glossary quick reference
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