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Current options analysis: weak signal for selling premium on WST.
No strategies meet current entry criteria.
West Pharmaceutical Services (WST) is a Healthcare stock with actively traded listed options. IV Rank 31% is 5pp below the Healthcare sector median of 36%. WST put/call walls.
WST Edge Score: 75/100 — data coverage is strong, but current trading conditions are unfavorable.
No strategies meet entry criteria. Consider waiting for better conditions.
WST See full analysis →WST conditions are unfavorable — but other tickers may have edge today
When conditions are weak for one stock, others in the S&P 500 often show strong setups. Check today's top-ranked candidates instead of forcing a trade here.
Weak — Unfavorable for premium selling
EM = Price × RV₂₀d × √(t/252). Uses Yang-Zhang 20d realized volatility (not implied). ±1σ (68% confidence).
Conditions are weak — explore alternatives or wait for a better setup.
Volatility
IV Rank, IV vs RV comparison
Volatility Risk Premium edge
Volatility smile & skew shifts
IV curve across expirations
Strategy
P&L calculator for any strategy
Ranked strategies & selling conditions
Best CC strikes, premiums & scores
CSP → assignment → CC calculator
Early assignment probability & alerts
Flow & Events
Support & resistance from OI
IV crush & historical earnings
Price range & strike placement
Historical expected move hit rates
Quantitative screening, not investment advice. Verify with your broker. Disclaimer
Edge Score = weighted composite of VRP, IV Rank, RV Regime, Earnings Proximity, Term Structure, and Liquidity. Ranges: Defensive (0–39), Selective (40–64), Favorable (65–100).IV Rank, VRP, RV Ratio, days to earnings, backwardation/contango, bid-ask spread quality
ORATS institutional options data, updated daily after market close (~6:00 PM ET)
The score reflects current market conditions and changes daily. A high score indicates favorable conditions for premium selling, not guaranteed profit. Always verify execution quality with your broker.
West Pharmaceutical Services is currently one of the calmest stocks in the S&P 500 by our RV ratio measure. Yang-Zhang realized volatility shows 48.0% over 20 days versus a 38.6% 60-day baseline. The RV Ratio (HV 20d / IV 30d) is 0.69, placing it in the "sweet spot" for premium sellers. As a relatively predictable large-cap with moderate volatility, WST at this ratio suggests a period of consolidation where options may be significantly overpriced.
Looking at the past 18 trading days, WST's RV ratio has been trending lower. The ratio ranged from 1.47 to 1.38, with the current reading of 0.69 near the lower end. 0 of 18 days showed seller-favorable conditions. A gradual decline is often more sustainable than a sharp drop, suggesting WST may remain in this lower-vol regime for a while.
Based on current realized volatility, traders can expect WST to move approximately ±$8.28 (3.0%) per day and ±$18.52 (6.8%) over five trading days. At a stock price of $273.97, these ranges are derived from the Yang-Zhang volatility model which accounts for overnight gaps and intraday range — more accurate than simple close-to-close calculations. Premium sellers typically place short strikes outside these 1-standard-deviation ranges to achieve approximately 68%+ probability of profit.
Current conditions on WST favor a short strangle approach. Very calm stock (ratio 0.69) with strong VRP edge (+14.8%). Ideal for selling premium on both sides — stock unlikely to move beyond expected range. This neutral strategy profits from time decay as long as WST stays within the breakeven range. The current RV Ratio suggests options are overpricing movement, which benefits premium sellers on both sides of the trade.
Healthcare stocks often show lower baseline volatility, but can spike on FDA decisions, drug trials, or policy changes. WST specifically a Healthcare sector component tracked by VolRadar. Understanding sector-level volatility dynamics helps premium sellers diversify their positions across different correlation regimes.
VolRadar tracks WST daily as part of the S&P 500 universe, providing Yang-Zhang (OHLC-based) realized volatility across 10, 20, and 60-day windows, RV ratio analysis, expected move calculations, and premium selling condition assessments. Note: RV values on this page use the Yang-Zhang estimator (captures overnight gaps); VRP and RV Ratio use ORATS close-to-close RV to match the IV data source. Data is updated daily after market close (~6:00 PM ET). All analysis is for educational purposes only and does not constitute financial advice. Options trading involves significant risk of loss.
More about WST
West Pharmaceutical Services currently shows a weak premium selling signal. Consider waiting for conditions to improve. The VRP Analysis page tracks historical premium edge trends that may signal when conditions are turning.
West Pharmaceutical Services's IV Rank is 31%, indicating relatively cheap options. While premiums are thinner, low IV can present opportunities for option buyers or for sellers who focus on probability rather than absolute premium. See the IV Analysis page for detailed breakdown.
West Pharmaceutical Services's 5-day expected move is ±6.8% (±$18.52 from $273.97). A wide expected range reflects elevated realized volatility. See the Expected Move page for strike placement guidance and probability analysis.
West Pharmaceutical Services currently shows a weak premium selling signal because multiple factors are unfavorable. Consider waiting for conditions to improve.
West Pharmaceutical Services's volatility is measured using two key metrics. The RV Ratio compares realized volatility (ORATS HV 20d) to implied volatility (IV 30d). When the RV Ratio drops below 0.85, realized movement is well below what options are pricing — the sweet spot for premium sellers. VRP (Volatility Risk Premium) measures the gap between IV and HV in percentage points — positive VRP means options are overpriced relative to actual movement. Current RV Ratio: 0.69.
West Pharmaceutical Services's snapshot: IV Rank 31% (average premiums), VRP +14.8pp (options overpriced), RV Ratio 0.69 (calming volatility). These three metrics work together — IV Rank shows historical context, VRP shows current overpricing, and RV Ratio shows the volatility trend. See the IV Analysis page for peer comparisons and deeper breakdown.
VolRadar provides 10 analysis pages for West Pharmaceutical Services: Overview (this page), Premium Selling (signal and strategy verdict), VRP Analysis (volatility risk premium history), Expected Move (range and probabilities), IV Analysis (implied volatility breakdown and peer comparison), Earnings Crush (historical post-earnings IV patterns), Options Strategy Builder (18 presets + custom calculator), Covered Call Analysis (ranked by CC Score), Wheel Strategy (CSP calculator and viability), and Support & Resistance Walls (options-derived price levels).
Every options trade carries risk: undefined-risk strategies (naked puts/calls) expose you to large losses on gap moves, while defined-risk strategies cap losses but reduce premium. For West Pharmaceutical Services, current conditions require careful selection — check the signal strength before entering positions — always size positions so no single trade risks more than 1-3% of your account. Use the Strategy Builder to model worst-case scenarios before entering.
West Pharmaceutical Services's Volatility Risk Premium (VRP) is +14.8pp, meaning implied volatility exceeds realized volatility by that amount. A positive VRP indicates options are overpriced relative to actual stock movement — this is the statistical edge premium sellers seek.
Based on Yang-Zhang realized volatility, West Pharmaceutical Services has a 1-day expected move of ±$8.28 (±3.0%) and a 5-day expected move of ±$18.52 (±6.8%). This means the stock is expected to trade between $255 and $292 over the next week with approximately 68% probability.
Higher RV Ratio (closer to 1.0) means IV barely exceeds RV, resulting in slimmer VRP edge. Lower RV Ratio = wider gap between IV and actual movement = stronger seller edge.
View all Healthcare tickers →More analysis sections planned — Dark Pool Flow, Unusual Activity, Sector Comparison, and more.