Options-implied expected move through earnings
The move the options market prices through the next earnings report: the scheduled report date paired with the at-the-money implied volatility of the expiry that brackets it. Shown as the dollar and percent move, the expected range, and the event premium — how much richer that expiry's vol trades than the front expiry's vol carried to the same tenor. The expected move is not a directional indicator.
Prior prints — realized moves (implied-move history not retained)
Historical option chains are not archived; no prior implied move is available for comparison and no hit rate is computed. Realized move: the change in AAPL across the session that absorbed each prior print.
4 prior quarters are on the calendar for AAPL; none carries an announcement session, so the reaction day cannot be identified. Realized moves measurable: 0 of 4.
Implied move = spot × ATM implied vol × √(days/365) — the ±1σ priced into the expiry that brackets the earnings date. Event premium = bracket move − (front ATM vol × √(bracket days/365)): the front's vol carried to the bracket's tenor, re-derivable as bracket move × front vol ÷ bracket vol. Earnings date from the earnings calendar. The expected move is not a directional indicator.