For iron condors on SPX, do you use 95 percent or 99 percent VaR to set position size, and how does that compare to using delta or expected move?

At VixShield we approach position sizing for our 1DTE SPX Iron Condors through a disciplined framework built on Russell Clark's SPX Mastery methodology rather than relying on Value at Risk calculations. We do not use 95 percent or 99 percent VaR to determine trade size. Instead our core rule is simple and consistent: never allocate more than 10 percent of total account balance to any single Iron Condor Command position. This defined risk approach aligns directly with our Set and Forget philosophy that avoids stop losses and active management. The maximum loss on each trade is known precisely at entry and capped by the width of the strikes we select using the Expected Daily Range indicator. At VixShield we trade exclusively one day to expiration Iron Condors with signals firing daily at 3:10 PM CST after the SPX close. We offer three risk tiers calibrated to specific credit targets: Conservative at 0.70 credit targeting approximately 90 percent win rate, Balanced at 1.15 credit, and Aggressive at 1.60 credit. Strike selection is driven by our proprietary EDR formula which blends short term implied volatility from VIX9D with historical volatility to forecast the likely daily price range. RSAi then refines these strikes in real time by analyzing current options skew, VWAP positioning, and VIX momentum to match the exact premium the market is willing to pay. This combination proves far more practical for daily income generation than VaR models that require assumptions about return distributions which often fail during volatility spikes. When comparing to delta based sizing we find delta alone can be misleading for short dated condors because gamma accelerates rapidly near expiration. A 0.10 delta wing might appear safe yet still breach during a late day cascade if EDR is underestimated. Expected Move derived from VIX provides a useful one standard deviation benchmark but our EDR indicator improves upon it by incorporating regime specific multipliers and VIX9D for greater accuracy in 1DTE environments. Our ALVH Adaptive Layered VIX Hedge adds another layer of protection with its three timeframe VIX call structure in a 4/4/2 ratio that has historically cut drawdowns by 35 to 40 percent during high volatility periods at an annual cost of only 1 to 2 percent of account value. The Theta Time Shift mechanism further allows recovery of threatened positions by rolling forward to capture vega expansion then rolling back on pullbacks without adding capital. Current market conditions with VIX at 17.95 and SPX at 7138.80 place us in a regime where Conservative and Balanced tiers remain fully available while we monitor for any shift above 20 that would trigger a hold. All trading involves substantial risk of loss and is not suitable for all investors. To implement these concepts with daily signals, the EDR indicator, and live examples from Russell Clark join us at VixShield.com where the Unlimited Cash System brings these tools together for consistent income generation.