Sionna Therapeutics, Inc. (SION)
NASDAQ: SION · Real-Time Price · USD
4.820
+0.070 (1.47%)
At close: Oct 7, 2026, 4:00 PM EDT
4.568
-0.252 (-5.23%)
Pre-market: Oct 8, 2026, 4:15 AM EDT
Sionna Therapeutics Market Cap
Sionna Therapeutics has a market cap or net worth of $217.92 million as of October 7, 2026. That makes Sionna Therapeutics the 20,412th most valuable company in the world and 3,546th in the United States. Its market cap has decreased by 83.12% in one year.
Market Cap
217.92M
Enterprise Value
-42.26M
1-Year Change
-83.12%
Global Rank
Country Rank
#3,546 United States
Category
ChartMarket Cap Chart
Since the IPO on February 7, 2025, Sionna Therapeutics's market cap has decreased from $733.61M to $217.92M, a decrease of -70.29%. That is a compound annual growth rate of -51.80%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 7, 2026 | 217.92M | -88.13% |
| Dec 31, 2025 | 1.84B | 150.27% |
| Feb 7, 2025 | 733.61M | - |
Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
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