Silence Therapeutics Plc American Depository Share(SLN)
Stock quote, options chain, IV rank, technicals, AI analysis, and institutional ownership.
SLN iron condor setups
SLN expected move
SLN IV rank history
SLN Fibonacci levels
SLN insider trading
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
SLN
$11.18
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Snapshot
$11.18
After hours
$11.18
+0.00%
- 52-Week Range
- $4.19 – $17.58
- YTD
- +81.79%
- IV Rank (30D)
- 35.3
- Straddle Price
- $2.75
- P/C Vol Ratio
- 0.01
- Market Cap
- $0.7B
Fair Value
A blended fair-value estimate combining up to six valuation methods. Each method is weighted by how well it fits the company — DCF down-weights for unprofitable names; DDM only fires for steady dividend payers; comparables down-weight when peer multiples disagree.
- DCF (quality-aware) — projects free cash flow with a horizon that scales to business quality. True compounders (quality 6/6) get 10 years explicit + 10 years fade before terminal; cyclical/struggling names (quality 0-1) get a 5-year terminal cliff. Quality is scored from ROE, gross margin, growth, FCF margin, debt load, and FCF consistency — the same factors that drive market premium for compounders.
- Market-Implied Growth (in Model Inputs) — reverse-DCF that answers "what growth rate is the market pricing in?". Lets you sanity-check the deviation: if implied growth is plausible for the business, the model's bearish flag may be wrong; if implausible, the market may be over-extrapolating.
- DDM (Gordon Growth Dividend Model) — values the stream of future dividends. Only used when trailing yield ≥ 2% and dividend payments are stable — below that the dividend is a token payout and Gordon (which values only the dividend stream) systematically underprices growth names, so those route to DCF + comparables + market anchor instead.
- P/E, EV/EBITDA, P/B, P/S — applies the peer-group median multiple to this company's per-share metric. Peers come from the same set as the "Related symbols" card. Earnings/sales metrics are forward-tilted by the company's recent revenue growth (capped at 25%) so they're comparable to peers' growth-embedded multiples — mimics how analysts use NTM rather than TTM. Per-multiple weights are biased by company quality (e.g. P/B down-weighted for asset-light tech).
- Market Anchor (SMA50) — the 50-day moving average, weighted by recent trading-range stability (tighter Bollinger bands → higher weight). Captures information fundamentals miss (forward consensus, sentiment, supply/demand) — but only when recent trading is steady enough that the market has converged on a view. During wild breakouts or breakdowns the anchor's weight collapses.
- Options Expected (B-L 30d) — the risk-neutral expected stock price at 30-day options expiration, derived from the full implied-volatility surface via Breeden-Litzenberger (second derivative of call price wrt strike → implied PDF, then E[S_T]). Forward-looking, captures all options-implied information (smile, skew, term structure) in one number. Weighted by chain liquidity. SP500-only at present (pre-computed daily). Backtest evidence: adds modest alpha across most bucket × holding combos.
- Blended value — weighted average. Confidence reflects how many methods fired and how tight peer dispersion is.
- Deviation pill — green when blended FV ≥ 10% above current price (undervalued); red when ≥ 10% below; grey otherwise.
| 10-yr Treasury (rf) | 4.96% |
| Beta vs SPY | 1.07 |
| Cost of Equity (CAPM) | 10.83% (VRP-adj) |
| WACC | 10.82% |
| Volatility Risk Premium | +198.1pp (IV − HV30), ERP adj +50bps |
| Effective Tax Rate | 21.0% |
| Rev. Growth (YoY, DCF input) | +3.0% |
| DCF Horizon | 5 years explicit + fade |
| Forward Tilt (NTM/TTM) | ×1.03 (applied to P/E, EV/EBITDA, P/S) |
| Quality Score | 0/6 — cyclical/struggling (5y DCF) |
| SMA 50 | $12.69 (Market Anchor value) |
| SMA 20 / Bollinger Mid | $13.15 |
| Bollinger Width / SMA20 | 235.5% (drives anchor stability) |
| Net Debt | $0.0B |
Peers used for multiples: ALNY, AMGN, GILD, MRNA, NTRA, REGN, RVMD, VRTX
Blended Fair Value
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Deviation
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| Method | Implied Price | Weight | Detail |
|---|---|---|---|
| DCF | n/a | 0% | |
| DDM (Gordon) | n/a | 0% | |
| Peer P/E | n/a | 0% | median 27.4× · 4 peers |
| Peer EV/EBITDA | n/a | 0% | median 24.3× · 5 peers |
| Peer P/B | n/a | 0% | median 15.8× · 8 peers |
| Peer P/S | n/a | 0% | median 6.9× · 7 peers |
| Market Anchor (SMA50) | $12.69 | 0% | stability 0% (BB-width) |
| Options Expected (B-L 30d) | $10.98 | 0% | 8 strikes · skew +0.18 |
As of 2026-09-25 · updated
Info
- Industry (SIC)
- PHARMACEUTICAL PREPARATIONS (2834)
- Exchange
- XNAS
- Market Cap
- $0.7B
Silence Therapeutics PLC is a biotechnology company focused on discovering and developing novel molecules incorporating short-interfering ribonucleic acid or siRNA. Using its mRNAi GOLD platform, the company has generated siRNA product candidates both for its internal development pipeline as well as for out-licensed programs with third-party collaborators. Its wholly owned pipeline is focused on three therapeutic areas: cardiovascular disease, hematology, and rare diseases. The different product candidates in its pipeline are Divesiran (SLN124), a siRNA product candidate that has the potential…
Summary
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composite
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No summary data available for this symbol yet.
Each spoke is this symbol's rank within its sector (0–100; the dotted ring marks the sector median at 50). Higher is more constructive for a long. One spoke — News sentiment — is an absolute reading, not a sector rank. Grayed spokes have no data. A fuller shape is a summary, not a recommendation.
Chart
Seasonality
| Month | Avg Return | Years of Data |
|---|---|---|
| Jan | -11.49% | 6 |
| Feb | +0.69% | 6 |
| Mar | -15.39% | 6 |
| Apr | +9.57% | 6 |
| May | +0.73% | 6 |
| Jun | +14.09% | 6 |
| Jul | -0.24% | 6 |
| Aug | +11.18% | 6 |
| Sep | -5.89% | 6 |
| Oct | +2.59% | 5 |
| Nov | +12.43% | 5 |
| Dec | +1.25% | 5 |
Technical Indicators
Quick-reference for reading the values below. Indicators combine to confirm a view — no single one is a trade signal on its own.
Trend Indicators
- SMA 20 / 50 / 200 — price above = uptrend, below = downtrend. SMA 50 crossing SMA 200 is the golden/death cross.
- EMA 12 / 26 — faster-reacting averages; 12 above 26 is short-term bullish.
- MACD — bullish when MACD > signal (green badge), bearish when below. Divergence from price often precedes reversals.
- ADX (14) — trend strength regardless of direction. <20 range, 20–25 weak trend, 25–50 trend, >50 strong trend.
- +DI / −DI — +DI > −DI favors bulls; the reverse favors bears. Read alongside ADX.
Momentum Oscillators
- RSI (14) — <30 oversold, >70 overbought. 40–60 is neutral; trending names can stay extreme.
- Stochastic %K / %D — <20 oversold, >80 overbought. %K crossing %D is an early momentum signal.
- Williams %R — inverted scale: <−80 oversold, >−20 overbought.
Oscillators work best in range-bound markets; in strong trends they give premature reversal signals.
Volume & Volatility
- Bollinger Bands — price at upper band = overbought, lower = oversold. Narrow bands (squeeze) often precede expansion.
- OBV — cumulative volume; rising OBV confirms uptrend, falling OBV confirms downtrend. Divergence from price is a warning.
- Vol SMA 20 / Vol ROC — today's volume vs. 20-day average. Positive ROC with price move = conviction.
- ATR / True Range — average daily $ move; sizing and stop-loss reference.
- HV 20 / 30 / 60 — realized (historical) volatility. Compare to IV on the options cards: IV > HV = rich premium.
Confluence matters: trend + momentum + volume agreeing carries far more weight than any single indicator. For how these feed the spread scanner score, see the algorithm docs →
Trend Indicators
SMA 20: $13.04
SMA 50: $12.70
SMA 200: $8.09
Current: $11.17
EMA 12: $12.22
EMA 26: $12.62
MACD: -0.4047 | Signal: -0.3006
BEARISH
ADX (14): 26.76
TREND
+DI: 14.96
−DI: 28.93
Momentum Oscillators
RSI (14): 32.35
NEUTRAL
Stoch %K: 6.55
Stoch %D: 7.67
Williams %R: -95.79
Volume & Volatility
BB Upper: $15.25
BB Lower: $10.83
NEUTRAL
OBV: 3,589,096
Vol SMA 20: 798,062
Vol ROC: 4.39%
ATR: $0.72
True Range: $0.44
HV 20: 51.4%
HV 30: 47.5%
HV 60: 82.6%
Data Summary
Data Points: 500
Last Updated:
Date Range: 2024-09-26T00:00:00 – 2026-09-24T00:00:00
AI Analysis
LLM Stock Analysis Report
Executive Summary
Overall Assessment: BEARISH (Confidence Level: 6/10)
Key Drivers and Primary Risks:
- Strong technical signals indicating overbought conditions
- High volatility, potentially leading to increased risk
- Bearish sentiment from options market
2-3 Sentence Investment Thesis: SLN's recent price surge is unsustainable, with a high likelihood of a pullback or correction. The stock's technical indicators are flashing warning signs, while the options market is pricing in a significant move lower. Investors should exercise caution and consider hedging strategies to mitigate potential losses.
Recent News Sentiment Impact: Neutral headlines have not significantly impacted the stock's price movement.
Technical Analysis
Trend Direction:
- Short-term (1-4 weeks): Bearish
- Medium-term (1-3 months): Downtrend
- Long-term (3-12 months): Range-bound
Support/Resistance Levels:
- Lower Bollinger Band: $8.83
- Upper Bollinger Band: $13.56
- SMA 20: $11.20
- EMA 26: $10.93
Momentum Signals:
- RSI (14): Overbought (>70) - potential sell signal
- MACD: Bullish, but showing signs of weakening
- Bollinger Bands: Overbought
Volume Analysis:
- Volume SMA 20: Increasing
- On-Balance Volume (OBV): Increasing
- Volume Rate of Change: High
News & Sentiment Analysis
Recent Headlines Summary: Neutral headlines have not significantly impacted the stock's price movement.
Sentiment Assessment: Neutral, with no clear bullish or bearish trends emerging from recent news articles.
Catalyst Identification: No imminent catalysts identified that could impact the stock's price movement in the near term.
Market Narrative: The market narrative is currently centered around SLN's technical indicators and volatility levels, rather than specific company news or events.
Risk & Volatility Assessment
Beta Interpretation: High-risk stock with a beta of 1.60 (vs SPY).
Volatility Regime: High volatility - stock moves more than the market.
Options Market Signals:
- IV Rank: Low
- Put/Call Volume Ratio: Bearish sentiment
- Expected Move: $3.40 (39 DTE), with options market pricing in a significant move lower
Market Context & Positioning
Sector Performance: SLN is outperforming its sector and the broader market.
Institutional Activity: Increasing volume and open interest from institutional investors, indicating potential accumulation or hedging activity.
Correlation Analysis: High correlation with the SPY (0.24), suggesting that SLN may be more sensitive to broader market movements than previously thought.
Key Levels & Action Items
Critical Price Levels:
- Support: Lower Bollinger Band ($8.83)
- Resistance: Upper Bollinger Band ($13.56)
Breakout/Breakdown Levels: SMA 20 ($11.20) and EMA 26 ($10.93) may serve as resistance levels in the event of a pullback.
Time-Sensitive Catalysts: No imminent catalysts identified that could impact the stock's price movement in the near term.
Risk Management:
- Stop-loss levels: Consider setting stop-losses around $12.50 to mitigate potential losses.
- Position sizing: Reduce position size or consider hedging strategies to manage risk.
By analyzing SLN's technical indicators, options market signals, and recent news headlines, we conclude that the stock is likely to experience a pullback or correction in the near term. The high volatility and bearish sentiment from the options market further support this conclusion. As such, investors should exercise caution and consider hedging strategies to mitigate potential losses.
Generated
News
Earnings History
5 of 5 under expected move
Avg Expected Move
58.09%
Avg Actual Move
6.47%
| Earnings Date | Timing | Expected Move | Actual Move | Ratio | Outcome |
|---|---|---|---|---|---|
| 2025-02-27 | After-Close | 67.80% | 6.99% | 0.10x | Within |
| 2025-05-08 | After-Close | 71.03% | 3.20% | 0.05x | Within |
| 2025-08-07 | After-Close | 13.01% | 6.32% | 0.49x | Within |
| 2025-11-06 | Pre-Market | 48.88% | 3.37% | 0.07x | Within |
| 2026-03-05 | After-Close | 89.74% | 12.45% | 0.14x | Within |
Options Activity
- IV Rank (30D)
- 35.3
- IV Rank (7D)
- 35.3
- Avg IV
- 239.7%
- Straddle (30D)
- $2.75
- Straddle (7D)
- $2.75
- P/C Volume
- 0.01
Spread Scanner GPU
Each spread is ranked by a composite score built in three stages. Full documentation →
Stage 1 — Base Score (GPU scanner)
score = P(profit) × (credit / spread_width)
P(profit) from short leg delta (1 − |delta|), penalised above 85%. Credit uses mid-price to handle illiquid chains fairly.
Stage 2 — Skew Adjustment (±25% cap)
RR and BF (30-delta) from the persisted per-symbol skew snapshot — wing strikes picked by real greeks.delta, not a moneyness proxy. Put skew boosts bull puts, penalises bear calls. High butterfly boosts iron condors. Calendars are skew-neutral.
Stage 3 — Technical Overlay (±50% cap, 5 groups)
Group 1 · Directional Bias (±0.25)
- RSI <40 bullish / >60 bearish
- MACD crossover + histogram trend
- Price vs SMA 50 & SMA 200
Group 2 · Momentum (±0.10)
- Stochastic %K <20 / >80
- Williams %R <−80 / >−20
Group 3 · Volatility (up to −0.25 / +0.15)
- Blended ATR + straddle expected-move penalty
- Bollinger Band signal (+ counter-trend penalty)
- BB width — vol contraction boost for ICs
Group 4 · IV Regime (±0.15)
- IV rank ≥ 75 → strong boost for credit spreads
- IV rank < 25 → penalty (selling cheap vol)
Group 5 · Liquidity (penalty up to −0.10)
- Min open interest across all legs
- OI < 100 → −0.10 · OI < 500 → −0.05
score = base_score × skew_multiplier × tech_multiplier
Both multipliers are shown per spread. Beta is informational only — ATR already captures realized vol. Full algorithm documentation →
Enter a ticker to scan for optimal spread opportunities.
Evaluates all bull put, bear call, iron condor, and calendar spread combinations using GPU-accelerated analysis.
Skew (Wing IV − ATM IV)
DTE:
Wing Δ:
Wing vs ATM
IV(put wing) − IV(ATM), in vol pointsHow much the OTM put trades above (or below) the at-the-money strike. Measures the height of the put-side tail relative to ATM — i.e. how expensive crash insurance is on this name.
- Positive (typical) — wing IV > ATM IV. Standard equity put skew: portfolios bid up crash protection, so OTM puts trade richer than ATM.
- Near zero or negative (unusual) — wing IV ≤ ATM IV. Flat or inverted put side. Common when there's no fear demand, in tightly mean-reverting names, or right after an earnings catalyst clears.
- Percentile vs own 3-yr history: high = wings rich (good time to sell wing premium); low = wings cheap (good time to buy protection).
- Not directional — high or low wings don't predict up or down moves. It's a price tag on tail insurance, not a forecast.
Risk Reversal
IV(call wing) − IV(put wing), equal delta on each sideWhich side of the smile is the market paying up for? Measures the tilt of the surface — call skew vs put skew at matched deltas.
- Negative (typical) — puts richer than calls. Standard equity behavior: hedging demand makes puts carry a premium. Most large-caps sit in the −1 to −5 vol-point range.
- Strongly negative (< −5 pts) — heavy downside hedging, elevated fear, or an upcoming catalyst (earnings, FDA, macro event). Worth flagging.
- Positive — calls richer than puts. Unusual for equities; signals bullish momentum, short-squeeze positioning, or takeover/M&A speculation.
- Near zero — symmetric surface. Market sees roughly equal up/down risk. Rare for large-caps; more common in commodities and FX.
Reading them together
Wing-vs-ATM tells you how expensive the tails are. Risk Reversal tells you which side is favored. Combined:
- High wing percentile + deeply negative RR → strong put bid; stress or major event priced in. Owning protection costs a premium; selling put premium is dangerous.
- Low wing percentile + near-zero RR → complacency; insurance cheap and balanced. Good environment to add cheap downside hedges.
- Positive RR + elevated wings → call-side fear-of-missing-out; common in squeeze setups. Upside calls expensive, downside puts not bid.
14 DTE / 10d
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pts
EXTREME
ATM — / Wing —
30 DTE / 10d
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—
pts
EXTREME
ATM — / Wing —
Extreme reading.
Historically these have been contrarian — on the small set of observed earnings-day cases, large negative wing-vs-ATM gaps (calls pricing much richer than puts at the same delta) preceded sharp drops in the underlying within 1-12 days. Not financial advice and the dataset is small.
Percentile is the rank of today's reading within ~3 years of this symbol's own history. High percentile = wings are rich relative to history; not a directional signal. Skew is read off the chain in real time, not from CBOE SKEW.
Volatility Surface
Enter a ticker to render the implied volatility surface.
Volatility Smile
Enter a ticker to render the implied volatility smile.
IV Rank (7 DTE)
IV Rank (30 DTE)
Straddle Price (30 DTE)
Beta Analysis
- Beta (1Y vs SPY)
- 1.51
- Correlation (SPY)
- 23.1%
- R²
- 0.05
- Ann. Volatility
- 84.9%
- SPY Volatility
- 13.0%
High volatility - stock moves more than market
Beta & Alpha Over Time
Institutional Ownership (13F)
Latest filings — 2026-06-30
Institutional managers with $100M+ AUM file Form 13F-HR quarterly, due 45 days after quarter end. Holdings are reported gross at quarter-end market value — they are a snapshot, not a real-time position.
- Shares — long equity positions in this name, aggregated across share classes.
- Calls / Puts — notional value of long call / put exposure where this ticker is the underlying.
- % of Float — holder's reported shares divided by the latest diluted shares outstanding. Sums above 100% indicate large custodian / prime broker positions where the same shares are reported by multiple filers.
- Custodian badge — filers with more than 5,000 holdings are typically broker-dealers / custodians reporting customer-held shares, not active managers.
Each filer is counted once at its latest 13F-HR filing. New filings are ingested on a weekly cadence.
5 filers$7.04M notional
| # | Filer | Notional Value | % of Total | Period |
|---|---|---|---|---|
| 1 | Tetragon Partners GP Ltd | $3.29M | 46.79% | 2026-06-30 |
| 2 | Caption Management, LLC | $3.27M | 46.46% | 2026-06-30 |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP Custodian | $213.01K | 3.03% | 2026-06-30 |
| 4 | JANE STREET GROUP, LLC Custodian | $202.03K | 2.87% | 2026-06-30 |
| 5 | SIMPLEX TRADING, LLC Custodian | $60.39K | 0.86% | 2026-06-30 |
2 filers$415.04K notional
| # | Filer | Notional Value | % of Total | Period |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP Custodian | $327.20K | 78.84% | 2026-06-30 |
| 2 | SIMPLEX TRADING, LLC Custodian | $87.84K | 21.16% | 2026-06-30 |
Insider Activity
Latest: 2026-08-13
Form 4 filings — insider beneficial-ownership changes by officers, directors, and 10%+ holders. Filed within 2 business days of transaction.
| Filed | Reporter | Role | Action | Shares | Avg Price | Net $ | Link |
|---|---|---|---|---|---|---|---|
| 2026-08-13 | Richard Ian Griffiths | 10%+ Owner | Sell (S) | +5,484,320 RSU | — | EDGAR | |
| 2026-07-07 | Richard Ian Griffiths | 10%+ Owner | Sell (S) | +1,544,374 RSU | — | EDGAR | |
| 2026-02-13 | Richard Ian Griffiths | 10%+ Owner | Mixed | +44,000 RSU | — | EDGAR | |
| 2026-01-06 | James Ede-Golightly | Director | Grant (A) | +90,000 opt | — | EDGAR | |
| 2026-01-06 | TIMOTHY MCINERNEY | Director | Grant (A) | +90,000 opt | — | EDGAR | |
| 2026-01-06 | RHONDA LYNETTE HELLUMS | Chief Financial Officer | Grant (A) | +375,000 opt | — | EDGAR | |
| 2026-01-06 | David Lemus | Director | Grant (A) | +90,000 opt | — | EDGAR | |
| 2026-01-06 | Steven J. Romano | EVP and Chief R&D Officer | Grant (A) | +300,000 opt | — | EDGAR | |
| 2025-12-22 | Iain Ross | Interim PEO | Grant (A) | +900,000 opt | — | EDGAR | |
| 2025-12-22 | James Ede-Golightly | Director | Grant (A) | +90,000 opt | — | EDGAR | |
| 2025-08-04 | Richard Ian Griffiths | 10%+ Owner | Buy (P) | +18,376 RSU | — | EDGAR | |
| 2025-07-31 | Richard Ian Griffiths | 10%+ Owner | Buy (P) | +23,482 RSU | — | EDGAR | |
| 2025-07-23 | Richard Ian Griffiths | 10%+ Owner | Buy (P) | +25,345 RSU | — | EDGAR | |
| 2025-07-16 | Richard Ian Griffiths | 10%+ Owner | Buy (P) | +71,293 RSU | — | EDGAR | |
| 2025-07-10 | Richard Ian Griffiths | 10%+ Owner | Buy (P) | +62,457 RSU | — | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (described in filing footnote — typically 401(k), trust, inheritance) · W = will/inheritance. Only P / S codes carry directional signal.
ETF Holders
| # | ETF | Provider | Weight | $ Exposure | ETF AUM | As Of |
|---|
Fundamentals
Quarterly filings sourced from SEC 10-Q / 10-K reports. TTM tiles aggregate the most recent four quarters; bars show the last ~12 quarters oldest → newest.
Metrics
- Revenue — top-line sales. Look for consistent YoY growth; seasonal businesses need same-quarter comparisons (Q4 '24 vs Q4 '23).
- Net Income — bottom-line profit after all expenses. Can be volatile from one-time items; red bars = net loss.
- Diluted EPS — net income per share assuming options/converts are exercised. Direct input to the P/E ratio.
- Operating Cash Flow — cash generated from core operations, before capex and financing. Harder to manipulate than net income; growing OCF is a quality signal.
How to read the bars
- Sequential growth — quarter-over-quarter trend. Accelerating bars are a momentum signal.
- YoY growth — compare to the same quarter a year earlier to remove seasonality.
- Quality — OCF should roughly track Net Income over time. Large divergence (net income ≫ OCF) flags accruals risk.
- Margins — scan the bar ratios: Net Income / Revenue tells you margin trend without needing a separate chart.
TTM (trailing-twelve-month) smooths seasonality and is used for the P/E calculation. Filings appear 30–90 days after the period closes.