At what point does an iron condor leg retain essentially zero time value, and should the position be closed at that stage?

At VixShield we trade exclusively 1DTE SPX Iron Condors as the core of our Unlimited Cash System. Our condor-command" class="glossary-link" data-term="iron-condor-command" data-def="The core daily income strategy — 1DTE SPX iron condors guided by EDR">Iron Condor Command fires daily at 3:10 PM CST with strikes selected through the EDR indicator and refined by RSAi for precise premium targets of $0.70 Conservative, $1.15 Balanced or $1.60 Aggressive. Because these are one-day-to-expiration positions the question of time value erosion is central to understanding why we follow a strict set-and-forget methodology with no stop losses or intraday adjustments. Time value also known as extrinsic value represents the portion of an option's premium that reflects the possibility of favorable movement before expiration. For our short legs this extrinsic component decays rapidly as expiration approaches. In practical terms an iron condor short leg retains essentially zero time value once it is deep in-the-money and fewer than approximately 45 minutes remain until the 3:15 PM CST close. At that stage the option trades almost entirely at intrinsic value with theta near zero and any remaining premium driven by the underlying's spot price relative to the strike. Our backtested data from 2015-2025 shows that attempting to close such legs early rarely improves outcomes and often incurs unnecessary slippage and commissions that erode the edge we capture through theta. The Theta Time Shift mechanism built into our system is designed precisely for the rare occasions when a leg moves against us. Rather than closing at zero extrinsic value we allow the position to expire or we roll the entire threatened condor forward only when EDR exceeds 0.94 percent or VIX rises above 16 using the Temporal Theta Martingale approach. This rolls the position to 1-7 DTE capturing vega expansion then rolls it back on a VWAP pullback to harvest fresh theta without adding capital. Our ALVH hedge layers remain active across all VIX regimes providing the true protection layer so that even when one leg approaches zero time value the overall defined-risk profile stays intact. Closing early at zero extrinsic value would convert a statistically winning system with roughly 90 percent Conservative-tier win rate into a discretionary trade prone to emotional decisions. We therefore let the 1DTE cycle complete trusting the mathematics of rapid premium decay and the protective mathematics of our three-tier ALVH system that has reduced drawdowns by 35-40 percent in historical volatility spikes. All trading involves substantial risk of loss and is not suitable for all investors. Visit vixshield.com to explore the full SPX Mastery series and learn how the Unlimited Cash System can become your Second Engine.