Microsoft's Options Show Heavy Call Buying at $400 — Bullish Breakout Potential Looms as News Drives Optimism

Microsoft's options market is skewed bullish with heavy call open interest at $400. The RSI is near oversold levels at 29. A $52.5B Activision acquisition and AI cloud launch are fueling investor optimism. Block trades suggest insider attention at key call levels.

Microsoft (MSFT) is at a pivotal moment — and the options market is leaning firmly bullish. The stock opened today at $384.98, already above Friday’s close of $372.29, but is now trading down to $371.65 midday, showing a volatile start. Yet the sentiment is clear: traders are positioning for a near-term rally. A combination of heavy call buying at key strike levels, strategic block trades, and a string of major corporate moves — from AI expansion to a blockbuster Activision acquisition — is setting the stage for a potential breakout.

Call Buyers Are Bidding for the $400 Level, While Puts Hint at Caution Below $350

The options chain reveals a clear imbalance. For Friday’s expiry, the top OTM call is at $390 with 7191 open interest, but the real attention is on $400 with 6259 open interest. That means a lot of traders are betting MicrosoftMSFT-0.03% will pop above $400 in the next two days. For next week, the call-heavy trend continues — the $400 call alone has 22,468 open interest, and the $500 call has 37,423 open interest — showing long-term bullish positioning is strong.

On the put side, the highest open interest is at $370 (3980 OI) and $365 (3854 OI) for Friday, with a similar pattern for next week. This suggests a cautious stance among traders who don’t want to be left holding the bag if MSFTMSFT-0.03% dips below $370. The overall put/call ratio for open interest is 0.466, meaning calls dominate the options landscape — a sign of strong conviction in the upside.

What’s more, some block trades are catching the eye. One large 500-lot sale of the $400 call on Friday (MSFT20260417C400MSFT20260417C400-13.89%) moved $30,000 in volume — a move that could signal aggressive positioning by a big player. Another block of 1,000 lots of the same strike was sold for $230,000 — perhaps a sign that someone is either locking in profits or setting up a major short-term hedge.

Corporate News Is Fueling the Bullish Sentiment — and It’s No Fluke

Microsoft isn’t just getting a tailwind from market sentiment — the company is actively building a story that justifies a higher stock price. The Q1 earnings report was a blockbuster: $62 billion in revenue, 11% growth, and 24% Azure growth. That’s not just noise — it’s a clear signal that Microsoft’s core business is firing on all cylinders.

The Activision acquisition — $52.5 billion in cash — is a huge strategic move. It’s not just about games; it’s about cloud integration, cross-platform AI, and building a stronger foothold in entertainment. Microsoft is also launching a new AI cloud platform tailored for enterprises, which analysts say could become a new growth engine.

Then there’s the $30 billion share buyback program, the new Surface laptop model, and the AI Ethics Council — all of these are positioning Microsoft as a responsible, growth-focused tech leader. The news flow is strong, and it’s giving options buyers a reason to act now.

Trading Opportunities: Play the Call at $400 or Take a Scalp at $390

For those looking to trade MSFT today, two options stand out. First, the MSFT20260417C400 call — if the stock can close above $400 this week, this call could see a sharp move up. Given the block trades and open interest, this could be a high-probability play for those willing to hold through Friday.

For a shorter-term bet, the MSFT20260417C390MSFT20260417C390-18.70% call is also a good option. With 7191 open interest and the stock already flirting with $385, the 390s could act as a momentum play if the price breaks above $385 and holds. Entry could be around $385, with a target at $392–395 for a 0.5–1% move.

On the stock side, if MSFT can hold above $371.86 (the 30-day support level), it could retest the 30-day moving average at $388.58. That’s a key level to watch — a close above $388 would confirm a shift in momentum. For those bullish, a buy near $375–380 with a stop just below $371.45 (the intraday low today) and a target at $390–$400 could be a solid setup.

Volatility on the Horizon as Microsoft Builds a New Narrative

The coming days will test whether this bullish setup plays out. With the stock trading in a tight range but options activity screaming “upside,” the risk is in a breakdown below $371.45. But if Microsoft can hold and show strength in the next 48 hours — especially with the news backdrop — the 388–400 range looks like the next battleground.

Traders who want to stay in the game should keep an eye on Friday’s options expiry and the block trade activity. If the 400s start moving, it could be the beginning of a larger trend — one that could see Microsoft’s new AI and gaming story get priced in at a much higher valuation.