Long Call 103: Strike Selection (The Delta Rule)

The Delta Rule: Matching Tool to Task

The book gives a golden rule: The shorter your timeframe, the higher the Delta you should buy.

• Day Trading: Use Delta ~0.90 (Deep ITM). Why? Because OTM options have wide bid-ask spreads. If you are only looking for a $1 move in the stock, an OTM option won't even move enough to cover the spread.

• Short Term (1-2 Weeks): Use Delta 0.80+. You need high responsiveness to the stock's immediate direction.

• Intermediate Term (Months): Use Delta 0.50 (ATM). You are buying more "Time" to be right, so you can afford a slower Delta.

The "Lotto Ticket" Trap

Beginners love Deep Out-of-the-Money (OTM) calls because they cost $0.10. They think: "If the stock jumps, I'll make 1000%!"

The reality: These options have a near-zero probability of success. As the book notes, "time is the enemy of the buyer." For every one that hits, ninety-nine expire worthless.

Professionals treat OTM calls as Aggressive Speculation, not core trading.

Ranking by Volatility

Don't just buy calls on stocks that look "cheap". Buy them on stocks where the Volatility is underpriced.

The book suggests ranking opportunities by Volatility-adjusted return potential. A $4 call on a volatile stock might be a better value than a $2 call on a boring stock, because the volatile stock has a much higher chance of actually reaching the strike.