A bull call spread buys an ATM call and sells a higher-strike call expiring the same day. The long call gives upside; the short call finances part of the premium and caps the max gain at the higher strike. Maximum loss is the net premium paid, known up front. This defined-risk structure suits a moderate directional view without the naked-buy Gamma blow-up near expiry.
The AI risk filter pairs well: take the spread only when P(up) sits in 0.58-0.80, VIX z is below 2, and max-pain distance is safe. Because both legs are options, Theta still decays, but the net position is far smaller than a naked call. Size it as a percentage of premium at risk, not by lots.
Q: What is a bull call spread?
A: Buy ATM call, sell higher-strike call same expiry; debit paid is max loss.
Q: Why not buy a naked call?
A: Naked calls bleed Theta and can lose all premium; spreads cap loss and cost less.
Q: When does it work best?
A: Moderate upside view with VIX calm and filter confirming direction.
Q: What is the max gain?
A: Difference between strikes minus net debit, realized at expiry above the short strike.
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By Shakti Tiwari · Options AI research pillar. NISM XII certified. Educational only, not investment advice; verify before acting.