Buying AAPL calls: the math before the ticket

A long call is the right to buy 100 shares at $310 until August 28, 2026. You pay $890 for it and that debit is the entire risk — max loss $890, no margin calls, no assignment exposure.

The payoff below the strike is flat at −$890; above it, P/L rises one-for-one with the stock and turns positive at $318.9. Upside is unlimited, which is the whole appeal.

Every day you hold it, theta takes a slice. At 27% implied vol with 27 days left, that decay is modest now and vicious in the final fortnight — an ATM call loses roughly half its remaining extrinsic value in the last third of its life.

The engine's 34% probability of profit is the honest framing: long calls are low-probability, high-payoff. That is not a criticism — it is the shape you are buying — but it is the opposite of how most retail traders size them.

Max loss is 100% of the premium and it is the modal outcome. AAPL finishing anywhere at or below $310 on August 28, 2026 — a wide range of perfectly ordinary outcomes — pays zero.

Being right and still losing is routine: AAPL can rise 1.6% and this call still expires worthless because the breakeven is $318.9.

The ceiling on a spread is a real cost, not a theoretical one. It is paid exactly in the scenarios where your thesis worked best, which is when it hurts most to notice.

Apple's problem for a directional buyer is that it moves in steps, not slopes: nine quiet weeks and then a gap on a print or a product cycle. Debit structures dated to catch the step are fine; ones dated to catch drift bleed. Put the short leg where the last two earnings gaps actually landed, not where the narrative wants the stock to be.

AAPL's Aug 28 strikes are $5 apart near the money (1.62% of spot). Coarse enough that the strike you want frequently does not exist, and the nearest rung is a different trade. 32k contracts of open interest on Aug 28 is workable around the money and thin in the wings — width costs more here than the ladder suggests. 18 strikes on that expiry — 41% of the board — carry prints that agree with their own implied volatility and hold up across the ladder, and those are the strikes priced here. Penny-wide almost everywhere. If a spread will not fill near mid on Apple, the price is wrong, not the market.

Skew is inverted: the 25-delta CALL implies 1.7% more vol than the put. That is the market pricing upside risk above downside risk — a squeeze, a takeover rumour, or a crowded short. Owning upside on an inverted skew means paying the expensive side of the surface, which is worth knowing before you buy the call. The term structure is flat inside 1.5% between the two captured expiries, so there is no calendar edge to harvest and no event visibly priced into one month over the other.

At 27% ATM implied vol, the Aug 28 options are pricing a one-standard-deviation move of $22.60 over 27 days — roughly −7.3% to +7.3%, or $286.31 to $331.51. That band is the free part of the move. Anything your structure needs beyond it is the part you have to be right about.

The specific way people lose money on AAPL: Writing calls into a September product cycle at the same delta you used in July. The distribution changes; the delta table does not tell you that.