Why Meta Stock Slid After Earnings While Microsoft Soared

Meta Platforms (NASDAQ:META) and Microsoft (NASDAQ:MSFT) both reported earnings after the close on July 29, and both companies are pouring tens of billions into AI infrastructure. Both displayed signs of financial success in their core businesses.

The market, though, punished Meta with a 10% drop while rewarding Microsoft with an 8% gain, a gap of nearly 18 percentage points on the same evening over the same spending measures. The split reaction, the numbers behind it, and the lesson for your portfolio all come down to proof.

Meta beat on revenue at $60.8 billion but missed on earnings by 14%

Meta reported Q2 revenue of $60.8 billion, up 28% year over year and slightly above the $60.17 billion consensus, according to CNBC. Diluted earnings per share of $6.18 fell 14% short of the $7.22 analysts expected, weighed down by $2.4 billion in legal charges and $1.18 billion in severance costs.

The ad business remained healthy, with impressions up 14% and average price per ad up 12% year over year. Revenue growth was not the problem, rather, the miss came entirely from the cost side, and the magnitude of the EPS shortfall made it impossible for the revenue beat to offset.

Microsoft beat on both lines with Azure crossing $100 billion in annual revenue

Microsoft posted Q4 fiscal 2026 revenue of $90.01 billion, up 18% year over year and above the $87.62 billion consensus, with adjusted EPS of $4.74 that beat the $4.24 estimate. Net income rose 31% to $35.77 billion, as reported by CNBC.

Azure and other cloud services revenue grew 43% in Q4, accelerating from 40% in Q3, and Azure annual revenue crossed $100 billion for the first time, as reported by Quartz. Microsoft added roughly $260 billion in market value in a single after-hours session.

Meta's free cash flow fell 91% while Microsoft stayed cash-flow positive

Meta's free cash flow collapsed 91% year over year to just $784 million as capital expenditures surged to $31.1 billion, consuming nearly all of the quarter's $31.9 billion in operating cash flow, as reported by Eastern Herald. The key contrasts between the two reports include the following.

• Meta capex of $31.1 billion with free cash flow of $784 million.
• Microsoft capex plus finance leases of $41 billion, remaining cash-flow positive.
• Meta raised the low end of its 2026 capex guidance to $130 billion, narrowing the range to $130-$145 billion.
• Microsoft reiterated its 2026 capex plans unchanged at approximately $190 billion.

Microsoft proved its AI spending earns revenue through Azure

The fundamental difference between the two reactions is that Microsoft has Azure, a cloud business generating more than $100 billion in annual revenue that directly monetizes AI infrastructure. Every dollar Microsoft spends on data centers and AI chips feeds into a product customers pay for, and the 43% growth rate proves demand is accelerating.

Meta lacks an equivalent proof point. CEO Mark Zuckerberg told analysts that Meta is getting offers to lease excess compute capacity at a significant premium, but no cloud division exists to turn AI spending into a separate revenue line, as reported by Fortune. Meta's AI spending feeds into advertising, which grew 28%, but the connection between capex and ad revenue is less direct.

Microsoft held its capex forecast steady while Meta raised the floor

Microsoft CFO Amy Hood reiterated the company's 2026 capital spending plans and said Microsoft would remain cash-flow positive in fiscal 2027, according to CNBC. The company also announced FY2027 capex will grow year over year, but gave no concrete number. Pre-earnings analyst previews project a capex guidance of $255 billion to $260 billion. This is a significant increase, but the market accepted it because Azure proved the spending generates returns.

Meta raised the lower end of its full-year 2026 capex guidance to $130 billion from $125 billion, narrowing the range of $130 billion to $145 billion, as reported by TradingKey. Q3 revenue guidance also came in below expectations, reinforcing investor concern about spending outpacing revenue growth.

Both stocks trade at very different valuations after the same evening

Meta dropped to roughly $529 after hours, putting the stock at approximately 18 to 19 times normalized forward earnings, well below its three-year average of about 25 times, as analyzed by IndMoney. The discount reflects investor frustration with the cash flow trajectory.

Microsoft jumped roughly 8% after hours, adding about $260 billion in market value and pushing the stock above $422, as noted by Investing. A forward P/E near 25 times represents a premium your portfolio pays for visible, proven AI monetization through the cloud.

The market now demands proof that AI spending converts into returns

July 29 made one thing clear for investors holding either stock. The market has moved past accepting AI capex on faith and now requires evidence that the spending translates into measurable revenue. Microsoft provided that evidence through Azure, while Meta has not provided it yet.

The split reaction does not mean Meta's business is broken, since ad revenue grew 28%, impressions rose, and pricing power held. The issue is that without a cloud business or a visible non-advertising revenue stream tied to AI, investors have no way to independently verify whether the spending pays off.

Bottom line

Microsoft soared because Azure's 43% growth and $100 billion annual revenue milestone gave investors clear proof that AI spending generates returns. Meta slid because its $31 billion in quarterly capex consumed nearly all operating cash flow, and no cloud business exists to show the money coming back.

Comparing these two earnings reports side by side on must-have investing apps could help you evaluate which AI spending story carries more near-term risk. The lesson from July 29 is that the market no longer accepts large AI budgets on promise alone and now rewards the companies that show returns.

This article is for informational purposes only and should not be considered investment advice.

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