In today's From Theory to Practice, Dr. Jim examines how much leverage traders should use in derivatives trading, emphasizing the importance of the delta-theta ratio for short delta portfolios. He recommends targeting a 0.5 ratio (one short delta for every two positive theta), with portfolio theta levels between 0.1% to 0.5% of net liquidation value based on experience level, account size and market volatility.

The session highlights how VIX levels should influence position sizing, with higher volatility periods warranting more aggressive theta deployment.