Russell Clark's proprietary indicator for daily SPX range forecasting
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VixShield Proprietary — From SPX Mastery by Russell Clark
This term is part of the proprietary VixShield methodology developed by Russell Clark, FNP-C — author of the SPX Mastery series.
Definition
Russell Clark's custom TradingView indicator (Version 8 Build 20, ticker: SPXDCP / SPXMASTERY) that forecasts SPX's likely daily price range by blending short-term implied volatility (VIX9D) and historical volatility (HV). It generates three risk-tuned strike recommendations (High/Medium/Low) for Iron Condor placement, serving as the primary decision tool for all SPX Mastery strategies.
EDR runs pre-close daily to determine where Iron Condor strikes should be placed for each of the three risk tiers. The High mode (blended VIX9D + HV) produces the widest range and smallest credits ($0.55–$0.95) with 90–95% win odds — used in calm markets. The Medium mode (VIX9D-driven) produces standard range strikes ($0.75–$1.30) with 85–90% win odds. The Low mode (VIX30-driven) produces the tightest range ($1.30–$2.85) with 80–85% win odds for conservative conditions. EDR also triggers the Temporal Theta Martingale: when EDR > 0.94%, positions roll forward for vega capture; when EDR < 0.94%, positions roll back for theta harvest.
Source Books
📖 Iron Condor Command📖 Theta Time Shift📖 VIX Hedge Vanguard📖 Big Top Cash Press📖 AI Driven Options Mastery
What is EDR's key threshold for triggering the Temporal Theta Martingale?
EDR > 0.94% triggers the forward-roll phase of the Temporal Theta Martingale (capturing vega on volatility expansion). When EDR drops back below 0.94% and SPX returns below VWAP, the rollback phase is triggered to harvest theta decay.
APA Citation
Clark, R. (2025). SPX Mastery: Iron Condor Command – Daily Cash from Market-Close Trades. Diva Dog Press.
RC
Russell Clark, FNP-C
Author of SPX Mastery series · Founder of VixShield
Last updated:
· Source: VixShield Trading Glossary — From SPX Mastery by Russell Clark
⚠️ Not financial advice. This definition is educational content from the SPX Mastery book series by Russell Clark (VixShield). Past performance is not indicative of future results. Trading options involves substantial risk of loss and is not appropriate for all investors. Always paper trade before risking real capital.