Spero Therapeutics Inc. (SPRO) Dividend Safety Gauge & 10-Year DRIP Compounder

$1.06 -4.50% NASDAQ β€’ Live Quote vs Prior Daily Close (Synced Snapshot) EXT / AFTER-HRS: $1.05

Spero Therapeutics Inc. (SPRO) carries a Roarable Rating of D- (Sell) with 43/100 RQD Confidence due to weak cash-flow efficiency and sensitivity to current interest rates. Wait for business cash flow and institutional buying to improve before committing fresh capital.

ROARABLE D- β€’ SELL / AVOID Cap $64.6M
πŸ“€ Share Live RQD Speedometer Card: 𝕏 Post Reddit StockTwits ⬇ Live SVG Card
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πŸ€– Mara Quenwick β€’ AI Quant Lead (Click for Instant Brief) Is SPRO stock a Buy, Hold, or Sell right now according to Roarable's RQD model?
β–Ό

As of 2026-11-02, Spero Therapeutics Inc. (NASDAQ: SPRO) is rated D- (Sell / SELL) by Roarable's 5-pillar RQD engine with a composite confidence score of 43/100 at a spot price of $1.06 (-4.50% 1D, market cap $64.6M). Pillar breakdown: Fundamental Cash Engine 7/20, Institutional 13F & Options Flow 6/20, Executive Insider Alignment 10/20, FRED Macro Regime Fit 9/20, and SEC Balance-Sheet Forensics 11/20. Across 1016 tracked Health Care issuers, SPRO ranks #465 in composite RQD confidence.

βœ“ Pre-computed one-to-many AI Quant brief
πŸ€– Ellis Vennor β€’ AI Peer & Flow Quant (Click for Instant Brief) How does SPRO compare to CPIX and GOSS in the Health Care sector?
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Within the Health Care sector (Biotechnology: Pharmaceutical Preparations), SPRO carries a Roarable D- (43/100 RQD), trailing P/E of 7.5x, gross margin of β€”, and ROIC of 26.6%. By comparison, CPIX (Cumberland Pharmaceuticals Inc.) holds a D- grade (38/100 RQD, P/E N/A, ROIC -16.4%, cap $65.2M) and GOSS (Gossamer Bio Inc.) posts a E grade (33/100 RQD, P/E N/A, ROIC -35.0%, cap $65.4M). Among the 5-stock peer group, SPRO leads on earnings multiple (7.5x) while SPRO leads on capital efficiency (26.6% ROIC).

βœ“ Pre-computed one-to-many AI Quant brief
πŸ€– Gideon Ashmere β€’ AI SEC 10-K Forensics (Click for Instant Brief) What are the biggest fundamental strengths and SEC risk factors for SPRO?
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Per SPRO's SEC EDGAR XBRL 10-K filing (FY2025, filed 2025-12-31, CIK 0001701108), Spero Therapeutics Inc. generated $12.6M in revenue (+3292.5% YoY), $8.6M in net income, and -$12.6M in free cash flow against $68.9M in total assets and $0 in total debt. Key quantitative strengths: Established market leader in Health Care with deep daily trading liquidity.. Primary risk factors monitored: Sensitive to high interest rates and tighter Federal Reserve market liquidity.. Institutional options positioning shows a 50% call / 50% put premium split.

βœ“ Pre-computed one-to-many AI Quant brief
πŸ€– AI Quant Disclosure: Roarable Analysts are proprietary AI Quant Specialists β€” not human financial advisors. Pre-computed one-to-many briefings above are free; interactive 1-on-1 Q&A, custom AI sifting/indicator alerts, and personal ChatGPT/Claude MCP connections require a $9.95/mo Pro account (currently waitlist-only).
INTERACTIVE SCENARIO DECK:
πŸ›‘οΈ Portfolio Crash X-Ray
EXT / AFTER-HRS: $1.05 (-1.00%)🧬 Disciplined Float (+0.24% YoY Shares)βš™οΈ Cash Engine: 7/20 (D-) β€’ 0% FCF Margin
Verify 90D Bucket Audit β†’
πŸ“Š Historical Track Record Warning: Scores below 50 (43/100 Β· D-) historically underperformed SPY in 71% of rolling 90-day windows (-6.7% avg 90D alpha vs SPY β€’ 29.0% hit rate).
Audit Bucket Track Record β†’
RQD QUANT TACHOMETERSELL / AVOID β€’ D-
025507510043
3-of-3 JEV AI Jury Bearish Warning
Cash
SEC
Whale

Impersonal quantitative research (0–100 RQD rubric) β€” not individualized investment advice. Past performance does not guarantee future results. Full Disclaimer

5-PILLAR SNOWFLAKE RADARRw D- Β· Rk D
Cash (7)Whales (6)SEC (10)Macro (9)CEO (11)
Each axis scored 0–20
12M PRICE TARGET CONE-6.6% Base Target
$3 Bull$1 Base$1 Bear
πŸ“¬ FREE SPRO RATING-CHANGE & BRIEFING ALERTSManage / Unsubscribe
WHALE OPTIONS SNAPSHOT: β€” (No Active Options Snapshot on file for SPRO)Realized 20D OHLCV Swing Band: Β±11.9%
Deterministic 5-Pillar Attribution (43/100 Composite)
πŸ” WHY SPRO SCORES 43/100 (D-) β€” TOP 3 DRIVERS2 Bullish Pillars + #1 Risk Drag
β–² #1 Bullish Driver: Insider Conviction & Share Dilution+11/20 pts (26% of score)

SEC Form 4 / 13F Thermometer: 55% Net Buy β€’ Disciplined Float (+0.24% YoY Shares)

β–² #2 Bullish Driver: SEC 10-K Forensic Risk+10/20 pts (23% of score)

Altman Z-Score 0.20 (DISTRESS RISK (<1.8)) β€’ Piotroski F-Score 5/9

β–Ό #1 Drag / Risk Factor: Whale & Options Positioning6/20 pts (-14 pt drag)

Put hedging (50% put share) caps near-term gamma upside (-14 pts vs max)

πŸ“ˆ PAST 4 QUARTERS RQD vs SUBSEQUENT RETURNQ1 β†’ Q2 β†’ Q3 β†’ Current
Q1 (-3Q)
51
Grade C-$1.20-8.3% Next Q
Q2 (-2Q)
48
Grade D$1.10+0.9% Next Q
Q3 (-1Q)
46
Grade D$1.11-4.5% Next Q
Current
43
Grade D-$1.06-6.7% Hist 90D Ξ±
Trajectory: C- (51) β†’ D- (43)Full Audit β†’
βš”οΈ ADVERSARIAL OPPOSING CASE & FORENSIC KILL-SWITCH (WHY THE BULL/BEAR THESIS COULD FAIL)CONTRARIAN TURNAROUND & SHORT-SQUEEZE DOSSIER

βš”οΈ Adversarial Opposing Case: What Could Spark a SPRO Turnaround Squeeze

Gideon Ashmere Forensic Desk β†’

While SPRO currently carries a cautious 43/100 (D-) rating due to Whale & Options Positioning (6/20), shorts face asymmetric squeeze risk if free cash flow inflects or management executes accretive buybacks.

πŸš€ Contrarian Squeeze Trigger #1

Established market leader in Health Care with deep daily trading liquidity.

πŸš€ Contrarian Squeeze Trigger #2

Options & Short-Covering Gamma: Reclaiming the 50-day SMA ($1.17) and Max Pain ($1.11) forces dealer call-delta covering toward $3.23.

πŸš€ Contrarian Squeeze Trigger #3

Forensic Repair Trigger: Halting share dilution (Disciplined Float (+0.24% YoY Shares)) or retiring high-cost debt immediately upgrades the SEC 10-K Forensic pillar.

🎲 LIVE PREDICTION MARKET ODDS TIED TO $SPROβ€’ $2.4M Crowd Pool β€’ Kalshi / Polymarket Composite
Contract: β€œSPRO Beats Next Quarter EPS Consensus (Dec 30, 2026) & Holds Above 200D SMA”
CASH DIVIDEND + BUYBACK YIELD
0.6% Total Yield
0% Cash ($0.00/yr) + 0.6% Buybacks
PAYOUT SAFETY SPEEDOMETER
74/100 β€’ REINVESTING IN GROWTH + BUYBACKS
FREE CASH FLOW PAYOUT RATIO
0% (100% Reinvested)
Retains cash flow for R&D and share repurchases
INTERACTIVE DRIP & SHAREHOLDER-YIELD COMPOUNDER (15.1% EST. ANNUAL)

$10,000 Compounded Over 10 Years β†’ $40,809

Est. Year-10 Shareholder Yield: $245/yr
$11.5K
Yr 1
$13.2K
Yr 2
$15.2K
Yr 3
$17.6K
Yr 4
$20.2K
Yr 5
$23.3K
Yr 6
$26.8K
Yr 7
$30.8K
Yr 8
$35.5K
Yr 9
$40.8K
Yr 10
ON-DEMAND RQD QUANT WORKSHOP β€’ SPONSORED / PARTNER SPOTLIGHTHosted by Perry Belcher & Roarable Forensic Quant Desk

Red-Light Warning Desk: Spotting SEC Cash-Flow & Dilution Risks Before Downgrades (Featuring SPRO)

  • βœ“Walkthrough of SPRO's RQD Radar, SEC cash-conversion gap & downside invalidation levels
  • βœ“3 asymmetric Bear/Hedge frameworks when 10-year Treasury yields stay elevated
  • βœ“Includes nightly RQD rating-change & forensic signal email alerts on your tracked stocks
RQD INSIDER CLUB WAITLIST$49/YR PLANNED
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SPRO // CANDLESTICK & AUTO-TRENDLINE WORKSTATION6M: -57.77%πŸ›‘οΈ HOLDING TREND SUPPORT
2026-10-30O $1.11H $1.12L $1.05C $1.06VOL 309.9K
RES: $1.59SUP: $1.03SMA50: $1.17SMA200: $1.98
$3.22$2.63$2.04$1.45$0.86RES $1.59SUP $1.03$1.062026-04-302026-06-152026-07-312026-09-162026-10-30
PRIMARY-SOURCE FORENSICS, SECOND-ORDER LINKS & AI ANALYST DESK

SPRO Dilution Monitor, Expectations Hurdle, Butterfly Connections & Policy Exposure

Share Count & Dilution Monitor (#25)

Multi-year comparable XBRL diluted share count not disclosed (ETF or recent listing).

Reverse-DCF Expectations Hurdle (#30)
-6.7%/yr Implied 5Y Growth

vs. +180.0% actual YoY revenue growth (assuming 9.25% cost of equity & 16.5x terminal multiple).

Ellis Vennor Setup Ledger (#33)

No active Ellis Vennor swing setup published on SPRO today. View full Setup Ledger β†’

πŸ¦‹ Documented & Second-Order Butterfly Connections Open Graph β†’

No direct multi-tier Butterfly edges indexed yet for SPRO. Explore sector supply chains on /butterfly.

AI Analyst Theses, Washington Policy & Company Video
🎬 No recent verified company-specific video clip queued for SPRO today (we never pad ticker pages with unrelated generic clips). Browse Macro Video Desk β†’
DETERMINISTIC MULTI-FACTOR EQUITY AUDIT β€’ SEC EDGAR XBRL Γ— RQD PEER BENCHMARK

πŸ“Š Quantitative Sector Peer Comparison, SEC Filing Delta & Investment FAQ (SPRO)

1. Head-to-Head Health Care Peer Comparison (SPRO vs. CPIX, GOSS, RNTX, FBIO)

Industry: Biotechnology: Pharmaceutical Preparations (489 Tracked Issuers)

Across 1016 tracked Health Care securities in the Roarable RQD universe, Spero Therapeutics Inc. (SPRO) ranks #465 by composite RQD confidence (43/100, grade D-) and #719 by equity capitalization ($64.6M). Within this direct 5-issuer industry benchmark cohort, SPRO leads on earnings valuation at 7.5x trailing P/E, while SPRO leads on capital efficiency and profitability with 26.6% ROIC and β€” gross margin. RNTX currently holds the highest overall quantitative score in the immediate peer group at 49/100 (D) compared with SPRO at 43/100 (D-).

Ticker / Company Roarable Grade RQD Score Trailing P/E Gross Margin ROIC 1D Change Market Cap Head-to-Head
SPRO ACTIVE
Spero Therapeutics Inc.
D- 43/100 7.5x β€” 26.6% -4.50% $64.6M Benchmark Subject
CPIX
Cumberland Pharmaceuticals Inc.
D- 38/100 β€” 85.0% -16.4% +7.82% $65.2M /cpix-vs-spro β†’
GOSS
Gossamer Bio Inc.
E 33/100 β€” β€” -35.0% -2.90% $65.4M /goss-vs-spro β†’
RNTX
Rein Therapeutics Inc.
D 49/100 β€” β€” -35.0% -7.79% $62.7M /rntx-vs-spro β†’
FBIO
Fortress Biotech Inc.
D- 39/100 β€” 66.9% -35.0% -4.00% $66.7M /fbio-vs-spro β†’

2. Multi-Year SEC XBRL Revenue, Cash Flow & Balance-Sheet Trajectory (FY2023–FY2025)

SEC EDGAR 10-K β€’ FILED 2025-12-31 β€’ CIK 0001701108

In its most recent audited fiscal period (FY2025, filed 2025-12-31), Spero Therapeutics Inc. (SPRO) reported GAAP revenue of $12.6M (+3292.5% vs. FY2024 revenue of $371.0K , and +1249.0% cumulative change since FY2023) , GAAP net income of $8.6M, operating cash flow of -$12.6M, and free cash flow of -$12.6M (+46.2% YoY). On the balance sheet, SPRO closed FY2025 with $68.9M in total assets against $0 in total debt (Altman Z-Score: 0.20, Piotroski F-Score: 5/9).

Fiscal Period Filing Date Revenue Net Income Operating Cash Flow Free Cash Flow Total Assets Total Debt
FY2025 (FY) 2025-12-31 $12.6M $8.6M -$12.6M -$12.6M $68.9M β€”
FY2024 (FY) 2024-12-31 $371.0K -$68.6M -$23.4M -$23.4M $110.5M β€”
FY2023 (FY) 2023-12-31 $933.0K $22.8M -$33.0M -$33.0M β€” β€”

3. SPRO Data-Verified Investor FAQ (RQD Rating, Sector Peers, SEC Forensics & Technicals)

βœ“ SCHEMA.ORG FAQPAGE JSON-LD ENABLED

Is SPRO stock a Buy, Hold, or Sell right now according to Roarable's RQD model?

As of 2026-11-02, Spero Therapeutics Inc. (NASDAQ: SPRO) is rated D- (Sell / SELL) by Roarable's 5-pillar RQD engine with a composite confidence score of 43/100 at a spot price of $1.06 (-4.50% 1D, market cap $64.6M). Pillar breakdown: Fundamental Cash Engine 7/20, Institutional 13F & Options Flow 6/20, Executive Insider Alignment 10/20, FRED Macro Regime Fit 9/20, and SEC Balance-Sheet Forensics 11/20. Across 1016 tracked Health Care issuers, SPRO ranks #465 in composite RQD confidence.

How does SPRO compare to CPIX and GOSS in the Health Care sector?

Within the Health Care sector (Biotechnology: Pharmaceutical Preparations), SPRO carries a Roarable D- (43/100 RQD), trailing P/E of 7.5x, gross margin of β€”, and ROIC of 26.6%. By comparison, CPIX (Cumberland Pharmaceuticals Inc.) holds a D- grade (38/100 RQD, P/E N/A, ROIC -16.4%, cap $65.2M) and GOSS (Gossamer Bio Inc.) posts a E grade (33/100 RQD, P/E N/A, ROIC -35.0%, cap $65.4M). Among the 5-stock peer group, SPRO leads on earnings multiple (7.5x) while SPRO leads on capital efficiency (26.6% ROIC).

What are the biggest fundamental strengths and SEC risk factors for SPRO?

Per SPRO's SEC EDGAR XBRL 10-K filing (FY2025, filed 2025-12-31, CIK 0001701108), Spero Therapeutics Inc. generated $12.6M in revenue (+3292.5% YoY), $8.6M in net income, and -$12.6M in free cash flow against $68.9M in total assets and $0 in total debt. Key quantitative strengths: Established market leader in Health Care with deep daily trading liquidity.. Primary risk factors monitored: Sensitive to high interest rates and tighter Federal Reserve market liquidity.. Institutional options positioning shows a 50% call / 50% put premium split.

Where is SPRO trading relative to its 50-day, 200-day, and 52-week technical levels?

SPRO last traded at $1.06 (-4.50% on volume of 309,875 shares), positioning the stock -9.40% below its 50-day simple moving average ($1.17) and -46.46% below its 200-day simple moving average ($1.98). Across its 52-week range of $1.04 to $3.08, SPRO sits at the 1.0% percentile with a 14-day RSI of 41.2 (NEUTRAL RANGE) and an implied next-earnings move of Β±11.9% ($1.00 to $1.19).

SPRO Investor FAQ & Complete 8-Part Research Index

100% OPEN ACCESS β€’ SEC EDGAR Γ— CBOE Γ— FRED

Does SPRO pay a dividend and is it safe?

Spero Therapeutics Inc. (SPRO) offers a 0% cash dividend yield ($0.00 annualized) and 0.6% total shareholder yield including buybacks. Roarable rates its payout coverage as REINVESTING IN GROWTH + BUYBACKS.

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