Micron options chain prices another big swing after pre-earnings rout (MU:NASDAQ)

Micron shares fell in pre-earnings trading as options markets priced a post-earnings swing of roughly 13% in either direction. Straddles on the stock were implying a range between $920 and $1,200, with both calls and puts seeing elevated volume.

The implied move is on the higher end of Micron’s recent earnings history. Over the past eight quarters, the stock has moved an average of 8% on report day, with the largest swing – a 14% drop – coming last September. The current straddle cost suggests traders are bracing for something closer to that outlier than the typical reaction.

Heavy activity was concentrated in the weekly options series expiring Friday. The $1,100 strike saw the most call volume, while the $950 strike led on the put side. That clustering around round numbers near the current share price – around $1,050 before the session – is common when positioning is directional rather than hedged. The skew between put and call implied volatility was relatively flat, meaning the market is not pricing a bias toward downside or upside, just a large move.

The pre-earnings rout itself – a drop of roughly 5% in the days before the report – adds another layer. When a stock slides into earnings, the options market often overpays for downside protection. The flat skew here suggests the slide has not triggered a panic shift into puts. If anything, the put-call ratio across all tenors is near its 20-day average.

For traders watching the setup, the straddle price reflects a binary event. The $1,200 call side implies a roughly 14% gain from the pre-earnings level, while the $920 put implies a 12% loss. Those are the boundaries the options market sees as the edges of a one-standard-deviation move. A print inside that range would mean the straddle buyer loses money; a print outside it yields a profit.

Earnings are scheduled after the close on Wednesday. The report will include fiscal third-quarter results and guidance for the current quarter. With the options chain pricing such a wide range, the actual move could either validate the fear embedded in the straddle or surprise to the upside.

Micron's recent history of big earnings swings – especially in a sector sensitive to memory pricing and AI demand – makes this one of the higher-volatility events on the semiconductor calendar this month.