Option Focus | Micron's $11.8 Million Bet Targets $1,190 Calls Expiring This Month, While Calendar Put Spread Signals Defensive Positioning

Micron Technology shares closed at $1,032.28, down 10.57% on the session. Despite the sharp selloff, institutional-sized options activity reflected a tug-of-war between bullish and bearish positioning, with overall sentiment remaining tilted to the upside.

Options Metrics

Micron's implied volatility (IV) stood at 106.34%, with an IV percentile of 90.44%, indicating that option premiums remain elevated relative to historical levels and that the market continues to price in significant future volatility.

Meanwhile, the IV/HV ratio was 0.83, suggesting implied volatility has not expanded materially beyond the stock's realized volatility. The call-to-put volume ratio came in at 0.93, pointing to relatively balanced trading activity between calls and puts.

Notable Block Trades

One of the day's largest multi-leg trades was a $1.41 million three-leg calendar put strategy, reflecting a structured downside hedge.

The position consisted of two purchases of the MU Jul. 10, 2026 $600 Put and the sale of one MU Jul. 2, 2026 $650 Put, forming a calendar bearish structure.

$MU 20260710 600.0 PUT$

$MU 20260702 650.0 PUT$

Source: Tiger Trade App

The strategy combines long-dated out-of-the-money puts with the sale of a shorter-dated out-of-the-money put, resulting in a net premium outlay. Such positioning suggests traders are seeking relatively cost-efficient exposure to potential downside while partially offsetting premium costs through short-term time decay.

With Micron closing at $1,032.28, both strike prices remain deeply out of the money, indicating that the trade is not aimed at protecting against modest price fluctuations. Instead, it appears designed either as protection against a sharp downside move or as a wager on a low-probability tail-risk event.

The largest single-leg transaction of the session was a $11.85 million purchase of the MU Jul. 24, 2026 $1,190 Call.

$MU 20260724 1190.0 CALL$

Source: Tiger Trade App

The option was out of the money at the time of execution, making the directional view clearly bullish. By paying a substantial premium for upside exposure above the current share price, the buyer demonstrated expectations for continued gains over the coming weeks while expressing a strong preference for leveraged upside participation.

The $1,190 strike sits well above the current market price, suggesting the trade represents an aggressive bullish bet rather than a conservative positioning strategy. The transaction underscores optimism about Micron's upside potential and reflects continued momentum-driven buying interest.

Market Sentiment

Looking across the day's block trades, defensive positioning—including calendar put structures, purchases of out-of-the-money puts, and bear put spreads—was evident. However, bullish flows dominated both in terms of notional value and overall market impact.

In particular, the more than $10 million out-of-the-money call purchase significantly strengthened the day's risk-on profile, suggesting that institutional options activity continued to reflect a predominantly bullish outlook despite the stock's sharp decline.

Strategy Watch

For option sellers, elevated implied volatility may present opportunities to collect premium by selling deep out-of-the-money options (for example, contracts with an absolute delta below 0.20).

Investors seeking to limit margin requirements may instead consider defined-risk spread strategies, such as selling an out-of-the-money near-term call while simultaneously purchasing a further out-of-the-money call as protection.