What Greeks do you focus on most when selecting strikes from the option chain for credit spreads or iron condors?

When selecting strikes for credit spreads or iron condors, the primary Greeks to monitor are delta and theta, with secondary attention to gamma and vega depending on the setup. Delta serves as the directional probability proxy, guiding how far out-of-the-money your short strikes should sit. For VixShield's 1DTE SPX Iron Condor Command, we target short deltas typically between 0.10 and 0.18 to balance premium collection against the probability of the underlying staying within the wings by expiration. This aligns directly with the EDR Expected Daily Range indicator, which forecasts the likely one-day move in SPX using a blend of VIX9D implied volatility and 20-day historical volatility. At current levels with VIX at 17.95 and SPX near 7138.80, an EDR reading around 1.16 percent might suggest placing short strikes roughly 80 to 85 points away from spot for the balanced tier. Theta is equally critical because our entire methodology is built on positive theta decay. In 1DTE trades, theta accelerates dramatically in the final hours, which is why we place positions at the 3:10 PM CST post-close window. This timing captures maximum daily decay while qualifying as an after-close trade to avoid PDT restrictions. We ignore raw premium targets in isolation and instead let RSAi Rapid Skew AI dynamically adjust strikes in real time to hit exact credit objectives of approximately 0.70 for conservative, 1.15 for balanced, and 1.60 for aggressive tiers. Gamma receives attention near expiration because it spikes as strikes approach at-the-money, increasing the rate of delta change and thus risk of breach. Vega is de-emphasized for pure 1DTE iron condors since short-term vega impact is modest, but it becomes vital when volatility expands and we engage the Temporal Theta Martingale or Temporal Vega Martingale recovery mechanics. In those cases, we roll threatened positions forward to 1-7 DTE on EDR above 0.94 percent or VIX above 16, capturing vega swell before rolling back on a VWAP pullback. The ALVH Adaptive Layered VIX Hedge runs in parallel across all regimes, layering VIX calls in a 4/4/2 ratio at 0.50 delta to offset spike risk without requiring active management. This set-and-forget structure, combined with position sizing capped at 10 percent of account balance, produces the documented 90 percent win rate on the conservative tier across backtested periods. All trading involves substantial risk of loss and is not suitable for all investors. For deeper examples and live signal walkthroughs, explore the SPX Mastery book series and join VixShield for daily RSAi-driven setups.