Unusual Options Activity in MSFT As $1M Call Sweep Signals Bullish Bet for September

MSFT options
Bullish MSFT 535C expiring 9/4/2025

A notable options trade was executed for Microsoft (MSFT) involving a $535 strike Call option expiring on September 5, 2025. The trade type was a Sweep, indicating urgency and a potential attempt to avoid detection by executing across multiple exchanges. The spot price of MSFT at the time of the trade was $536.19, placing the call slightly in-the-money.

The buyer purchased 800 contracts at a premium of $12.77 per contract, resulting in a total premium of approximately $1,021,600 (800 x 100 x $12.77). This aligns with the $1M premium listed. What stands out most is the volume-to-open-interest (V/OI) ratio. At the time of the trade, it came in at 6.8 as 934 contracts exchanged hands with an open interest of 138. This strongly suggests new positioning rather than closing trades. High V/OI ratios often reflect fresh bullish sentiment.

The aggressive size, sweep designation, and elevated premium all point to a high-conviction bullish bet on MSFT holding or exceeding $535 in the coming year. This may reflect investor confidence in Microsoft’s short-term outlook, possibly due to expected AI advancements or strong earnings momentum.

Volume and Open Interest Data

Bullish MSFT 535C expiring 9/4/2025 Volume and Open Interest Data

On August 4th, the MSFT $535 Call option expiring September 5, 2025 experienced a significant surge in trading activity. With 981 contracts traded, this marks a sharp spike compared to its existing open interest (OI) of only 138 contracts. This results in a Volume/Open Interest (V/OI) ratio of approximately 7.1. This strongly indicating that this was primarily opening activity, not just rotation or closing of existing positions.

The accompanying chart shows no volume or open interest in the preceding days, confirming this as fresh bullish positioning. The option closed at $13.55, with an implied volatility (IV) of 17.89%, suggesting modest market expectations of future price movement. The surge in volume paired with relatively low OI and steady price appreciation points to unusual call buying interest—likely driven by institutional activity anticipating continued upside in MSFT’s stock.

What’s Happening with Microsoft

Microsoft has experienced a dynamic start to the second half of the year, highlighted by robust financial results and active product updates. Just last week, Microsoft announced its earnings for the quarter ending June 30, 2025. The company reported substantial growth driven by continued demand for its cloud and AI offerings. Quarterly revenue reached $76.4 billion—an 18% year-over-year increase—while net income soared to $27.2 billion, up 24%. Azure, Microsoft’s cloud platform, surpassed $75 billion in annual revenue, growing 34%, and Microsoft Cloud’s revenue for the quarter hit $46.7 billion, reflecting a 27% jump. As a result of this strong performance, Microsoft’s market capitalization exceeded $4 trillion. This marks it the second company ever to reach that milestone.

Alongside these financial achievements, August has brought over 25 updates to the Microsoft 365 suite. These include new features like an AI-driven Data Security Investigations tool, enhancements to Teams, retirements of older services such as the Azure AD Graph API and classic eDiscovery, and productivity improvements across apps such as Outlook and SharePoint. Microsoft also continues to host major industry events and conferences—many focused on AI, Copilot, and cloud technologies—signaling ongoing investment in innovation and IT sector leadership.

About Microsoft

Microsoft is a diversified technology giant whose mission is “to empower every person and every organization on the planet to achieve more.” It delivers that promise through three broad business segments. Productivity & Business Processes houses collaboration and enterprise-software staples such as Microsoft 365 (Word, Excel, Teams, Copilot), LinkedIn, and the Dynamics 365 CRM/ERP suite.

Intelligent Cloud is anchored by the Azure hyperscale platform, which provides public-, private- and hybrid-cloud infrastructure, AI and data services, plus on-premises server products and enterprise support. More Personal Computing includes the Windows operating system, Surface devices and HoloLens, Xbox hardware and Game Pass subscriptions, as well as Bing/Copilot search and advertising. Together these franchises give Microsoft a presence from consumer PCs to enterprise datacenters and emerging AI workloads, making it one of the world’s most influential and vertically integrated tech providers.

Analyst Ratings

FirmRating TypeRatingUpdated
CFRAStar Rating★★★★★08/03/2025
Market EdgeStanceLong05/09/2025
ArgusRecommendationBuy08/01/2025
MorningstarStar Rating★★★★07/31/2025
LSEGPerformance RatingOutperform08/01/2025
Schwab Equity RatingsLetter GradeB08/04/2025

As of early August, Microsoft is receiving strongly bullish sentiment from major equity research firms. Notably, CFRA has assigned a 5-star rating, the highest possible, indicating a strong conviction in long-term outperformance. Market Edge has shifted to a “Long” stance, up from previously neutral positions, while Argus upgraded their view to a firm “Buy”.

Morningstar maintains a 4-star rating, suggesting the stock is undervalued relative to its long-term fundamentals. LSEG (London Stock Exchange Group) has also rated MSFT as “Outperform”, and Schwab Equity Ratings gives it a solid B, reinforcing the broader bullish outlook. Altogether, this wave of positive sentiment aligns with recent institutional activity in both the options and dark pool markets, further validating investor confidence in MSFT’s growth prospects.

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Disclaimer: Options trading involves significant risk and is not suitable for all investors. You may lose the entire investment, and certain strategies may result in losses exceeding the initial amount invested. Past performance does not guarantee future results. This content is for informational purposes only and should not be considered investment advice. Always consult a financial or tax advisor before making investment decisions.

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