How does the 0.10 delta 120 DTE long call keep the overall position theta positive in Russell Clark's SPX method?

At VixShield we rely on Russell Clark's SPX Mastery methodology to generate consistent daily income through two primary vehicles: the 1DTE Iron Condor Command and the Big Top Temporal Theta Cash Press. The latter is a covered calendar call structure that pairs a long 120 DTE call purchased at approximately 0.10 delta with a short 1 DTE call sold 10 to 20 minutes before the close. This construction is deliberately engineered to remain theta positive on a net basis. The short 1 DTE call carries extremely high negative theta, often decaying at a rate of $250 to $500 per contract on the final day, while the long 120 DTE 0.10 delta call exhibits very low negative theta, typically only $15 to $35 per day. Because the short leg's theta decay far outpaces the modest time-value erosion of the long leg, the combined position collects net positive theta every trading day. We select the 0.10 delta strike on the long call because it balances capital efficiency with sufficient vega and gamma cushion to absorb moderate upside moves without immediately going deep in-the-money. In practice, when we sell the 1 DTE call against this long leg we target credit tiers that align with our EDR projections, typically harvesting $110 to $330 per contract depending on the regime. The ALVH hedge sits alongside this structure in a 4/4/2 layered ratio, protecting the entire book from volatility spikes while the Temporal Theta Martingale provides recovery mechanics on the rare days the short call finishes threatened. RSAi™ scans the skew surface at 3:05 PM CST to ensure the short strike lands at the precise premium level the market is offering. The net result is a position that benefits from premium decay the vast majority of days while the long leg acts as a rolling hedge that we adjust on a scheduled cadence rather than daily. This architecture allows us to maintain defined risk without stop losses and to benefit from the Theta Time Shift on any temporary breaches. All trading involves substantial risk of loss and is not suitable for all investors. To see the complete mechanics and backtested results, explore the SPX Mastery book series and join our live sessions at VixShield.com.