How should traders determine position size for 1DTE SPX Iron Condors when targeting 10 percent of account balance with VIX below 16?

At VixShield we follow a disciplined approach to position sizing rooted in Russell Clark's SPX Mastery methodology. Our core strategy centers on 1DTE SPX Iron Condors placed after the 3:09 PM CST cascade with signals firing at 3:10 PM CST Monday through Friday. The maximum position size remains 10 percent of total account balance across all risk tiers regardless of VIX level. When VIX sits below 16 the market typically exhibits lower implied volatility which often produces smaller credit levels yet still allows for consistent theta capture within our defined risk framework. For example with a $100000 account the maximum notional risk per trade stays at $10000. In the Conservative tier targeting approximately $0.70 credit we select strikes using the EDR indicator and RSAi to keep the expected daily range comfortably inside our wings producing an approximate 90 percent win rate over backtested periods. The Balanced tier aims for $1.15 credit and the Aggressive tier targets $1.60 credit with correspondingly wider wings that still respect the 10 percent account limit. This sizing ensures that even in a full loss scenario the account drawdown remains controlled while allowing the Theta Time Shift mechanism to recover most setbacks without additional capital. Our ALVH Adaptive Layered VIX Hedge runs in parallel with a 4/4/2 contract ratio across short medium and long VIX calls providing protection that historically cuts drawdowns by 35 to 40 percent during volatility expansions. Because we operate under a Set and Forget philosophy there are no intraday adjustments or stop losses. When VIX is below 16 all three tiers remain available according to our VIX Risk Scaling rules yet we still cap exposure at 10 percent to maintain portfolio resilience. This approach turns the daily SPX range into a repeatable income engine. The combination of EDR-guided strike selection RSAi skew analysis and fixed sizing creates the foundation of our Unlimited Cash System which backtests show delivers 82 to 84 percent win rates with maximum drawdowns of 10 to 12 percent. All trading involves substantial risk of loss and is not suitable for all investors. For deeper implementation details including live signal examples and ALVH roll schedules we invite you to explore the SPX Mastery resources and VixShield subscription tools.