Healthcare
Sionna Therapeutics, Inc.(SION)
Live Price
Offline$36.68
+1.75% today
1Y Change
+148.45%
Window
Jun 20, 2025 โ Jun 15, 2026
- Market Cap
- $1.76B
- Revenue Growth
- 0.0%
- EPS Growth
- -34.3%
- Dividend Yield
- 0.0%
Coverage: 248 bars ยท Jun 20, 2025 โ Jun 15, 2026
Research Briefing
A compact read on the setup, peer context, quarterly changes, and recent earnings reaction.
Research Snapshot
Sionna Therapeutics, Inc. (SION) is a Healthcare stock with a market cap of $1.76B and listed on NASDAQ. The stock last traded around $36.68 and up 148.4% across the available one-year price window (Jun 20, 2025 โ Jun 15, 2026). Baseline metrics include revenue growth of 0.0%, EPS growth of -34.3%, a dividend yield of 0.0%. What stands out right now is revenue 0.0%, EPS -34.3%, free cash flow -26.2% with operating margin 0.0% and ROIC -28.2%. Overall, the current profile looks closer to a turnaround or cyclical reset than a generic broad-market placeholder. Stock Foundry combines SION price history, valuation, growth, dividend context, earnings, analyst forecasts, news, related Healthcare peers on this page.
Sector Context
How this name stacks up against nearby peers on first-pass metrics.
Revenue Growth
Below sector median
0.0% vs +7.6% peer median
Operating Margin
Below sector median
0.0% vs +19.4% peer median
What Changed This Quarter
Latest report context and the signals most likely to have changed the story.
Latest report is on the board
2026 was reported on May 11, 2026, but the surprise data is still limited.
The operating picture looks softer than before
Revenue is at 0.0% and EPS is at -34.3%, with operating margin around 0.0%.
Earnings Reaction Memory
How the stock has tended to move after recent reports.
Across the last 3 reported quarters, the stock averaged +0.1% over the next 5 trading days and finished higher after 2 of those reports.
View quarter-by-quarter reaction table
| Quarter | EPS ฮ | 1D | 5D | 20D |
|---|---|---|---|---|
2026 May 11, 2026 | โ | -10.9% | -14.6% | -26.7% |
2026 Mar 2, 2026 | +14.7% | +0.5% | +10.6% | +8.1% |
2025 Nov 5, 2025 | +11.5% | -1.9% | +4.3% | +16.5% |
Benchmark Comparison
Normalized Performance vs SPY
Compare this ticker against a broad index, growth benchmark, or sector ETF using a shared 1Y normalization window.
SION
โ
Normalized return
SPY
โ
S&P 500
Excess Return
โ
Relative to SPY
SION Max Drawdown
-27.07%
Trailing 1Y
SPY Max Drawdown
โ
Trailing 1Y
Calendar-Year Returns
Uses the longest available daily history for SION and SPY.
Company Overview
Sionna Therapeutics, Inc.
NASDAQ Global Market
Sionna Therapeutics, Inc. is a biopharmaceutical company. The Company provides treatment paradigm for cystic fibrosis patients by developing medicines that normalize the function of the cystic fibrosis transmembrane conductance regulator.
- Leadership
- Michael Cloonan
- IPO Date
- Feb 7, 2025
- Employees
- 41
- Street Address
- 21 Hickory Drive Suite 500
- Mailing
- Waltham, MA, 02451
- Region
- Waltham, MA, US
- Reporting Currency
- USD
- Investor Line
- 617 819 2020
- Last Updated
- May 4, 2026
Key Fundamentals
Valuation, growth, profitability, and balance sheet signals.
Valuation
- P/E
- โ
- EV/EBITDA
- โ
- Price/Sales
- โ
- Price/Book
- 5.1
Growth
- Revenue
- 0.0%
- EPS
- -34.3%
- Free Cash Flow
- -26.2%
Profitability
- Gross Margin
- 0.0%
- Operating Margin
- 0.0%
- Net Margin
- 0.0%
- ROE
- -22.9%
- ROIC
- -28.2%
Balance Sheet
- Debt/Equity
- 0.03
- Current Ratio
- 20.61
Earnings Reports
Latest News
Official Releases
Company announcements and filings-style updates.
Next Step
Keep the research moving
After the overview, the strongest next step is usually chart context or a tighter compare set.