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As of 2026-08-24, Sionna Therapeutics, Inc. Common Stock (SION) has a 3-month relative strength percentile of 2 within the TickerStance CS+ADRC universe (~5,000 tickers). Its Power rating (absolute 1–99) is 23. The current market Stance is 47.8 (Neutral). Sector: Healthcare, ranked 3 of 11. Average daily range 11.3%, relative volume 0.41×. TickerStance reports observed regime conditions across the full CS+ADRC universe; band assignment reflects current breadth, momentum, and macro inputs computed at the daily close. Percentile ranks run from 1 (weakest) to 99 (strongest) relative to all universe members on the same date.
SION is in a stage 4 downtrend, week 1. Extended from base. VCP detected: inconclusive. Distance from 50d / 200d: -84.3% / -85.5%.
Relative strength across horizons plus the leadership score.
Accumulation rating, relative volume, U/D ratio, breakout-day proof.
Daily range, ATR, beta, and the math for a 1-ADR stop.
Diluted EPS, last 8 quarters. Loss makers are judged by progress toward breakeven.
YoY sales growth, last 8 quarters. Sales must back the earnings story.
Operating margin unavailable
YoY common shares outstanding. Down = buyback tailwind. Up > 2% = dilution flag.
Reported figures from SEC filings. No analyst estimates or forward guidance.
SION is held by 17 ETFs as of May 2026. Top owner: VTWO at 0.02% weight, $4M notional. Top 3 carry $9M.
Held by 37 ETFs · $102M across latest filings · largest weight 1.23% (SBIO).
Top 10 by value, from SEC N-PORT-P filings dated May 2026.
| ETF | Weight | Value | Δ |
|---|---|---|---|
| VTWO | 0.02% | $4M | — |
| SCHASchwab U.S. Small-Cap ETF | 0.01% | $3M | — |
| VFMO | 0.13% | $2M | +0.03 pp |
| SBIO | 1.23% | $2M | +0.17 pp |
| VTWG | 0.04% | $649K | — |
| ONEQ | 0.01% | $593K | — |
| SCHBSchwab U.S. Broad Market ETF | 0.00% | $316K | — |
| GSSC | 0.02% | $215K | new |
| IBBQ | 0.15% | $102K | +0.03 pp |
| BIB | 0.10% | $71K | +0.01 pp |
Showing 10 of 17 ETF owners.
As filed in N-PORT — quarterly holdings with up to ~60-day publication lag. Not live positioning.
Weak relative strength and quiet attention. Little to read here either way.
Measures how unusual this name’s public attention is against its own 90-day history — a surprise reading, not a ranking of how watched it is versus other stocks. Intel, not a signal.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SION Jan avg: 2.72% median: 2.72% win: 100% σ: 0.00% n: 1 2025-02-10 → 2026-07-31 | SION Feb avg: -29.23% median: -29.23% win: 0% σ: 22.19% n: 2 2025-02-10 → 2026-07-31 | SION Mar avg: -7.16% median: -7.16% win: 50% σ: 23.87% n: 2 2025-02-10 → 2026-07-31 | SION Apr avg: 5.77% median: 5.77% win: 50% σ: 13.06% n: 2 2025-02-10 → 2026-07-31 | SION May avg: 12.22% median: 12.22% win: 100% σ: 2.23% n: 2 2025-02-10 → 2026-07-31 | SION Jun avg: 14.73% median: 14.73% win: 100% σ: 16.97% n: 2 2025-02-10 → 2026-07-31 | SION Jul avg: 1.87% median: 1.87% win: 50% σ: 7.45% n: 2 2025-02-10 → 2026-07-31 | SION Aug avg: 46.90% median: 46.90% win: 100% σ: 0.00% n: 1 2025-02-10 → 2026-07-31 (current) | SION Sep avg: 19.46% median: 19.46% win: 100% σ: 0.00% n: 1 2025-02-10 → 2026-07-31 | SION Oct avg: 29.92% median: 29.92% win: 100% σ: 0.00% n: 1 2025-02-10 → 2026-07-31 | SION Nov avg: 14.03% median: 14.03% win: 100% σ: 0.00% n: 1 2025-02-10 → 2026-07-31 | SION Dec avg: -5.58% median: -5.58% win: 0% σ: 0.00% n: 1 2025-02-10 → 2026-07-31 |