As Wall Street turns its attention to Microsoft and Alphabet's earnings reports this week, the credit derivatives market has already sounded an early warning signal 鈥?credit default swap prices for both tech giants have simultaneously hit all-time records, revealing deep-seated investor concerns over whether massive AI capital expenditures can translate into actual returns.
According to Bloomberg, Alphabet (ASX: GOOGL) five-year credit default swaps (CDS) touched a historic high last Friday, surging 16% in October alone; Microsoft (ASX: MSFT) five-year CDS also set a record high the same day, rising nearly 9% in October and on track for a fifth consecutive monthly gain 鈥?which would be the longest streak on record. This signal means that even for mega-cap tech companies viewed as market safe havens, their credit risk premiums are quietly climbing.
Both companies are scheduled to report quarterly results after Wednesday's U.S. market close. Analysts and investors will focus on cloud computing growth rates 鈥?typically seen as a barometer of AI demand 鈥?and whether capital expenditures can generate sufficient cash flow returns. Meta's stock plunged 7% in a single day last week after its earnings report raised future spending plans, sounding an alarm for the market.
Stock Divergence: Microsoft Leads, Alphabet Lags
Since the last earnings season, the two companies' stock trajectories have clearly diverged, reflecting differing market judgments on their respective AI investment return paths.
Microsoft shares have gained 36% cumulatively since its July 29 earnings release. At that time, the company reported its fastest cloud growth in four years, sending the stock up 16% in a single day 鈥?its largest one-day gain since 2008.
Alphabet has moved in the opposite direction. Since its July 22 earnings release, its stock has fallen 6.3% cumulatively. That quarter's report showed free cash flow turned negative due to significantly elevated capital expenditures, and the market reacted coolly.
Year-to-date, both companies have underperformed the broader market: Microsoft is up 9.9%, Alphabet has gained just 2.4%, while the S&P 500 has risen 13% over the same period and the Nasdaq 100 has climbed 17%.
Luke O'Neill, portfolio manager at Catalyst Dynamic Alpha Fund, said: "In the current market environment, companies that can prove to shareholders they are generating cash have more leverage than those that can't. That's exactly why Microsoft has outperformed other hyperscalers over the past few months 鈥?it has demonstrated the ability to balance spending and returns."
Free Cash Flow Under Pressure: AI Spending Erodes Financial Headroom
The sheer scale of both companies' capital expenditures has begun to exert substantive pressure on free cash flow, which is precisely the core of the credit market's vigilance.
According to Bloomberg consensus estimates, Alphabet's capital expenditures are expected to more than double from $91 billion last year to $202 billion this year. Dragged down by this, the company is projected to record negative free cash flow of $3.6 billion in 2026, deteriorating further to negative $30 billion in 2027, with a return to positive territory not expected until 2028. Yet as recently as 2025, Alphabet's free cash flow stood at $73 billion.
Microsoft's situation is relatively more manageable but still not encouraging. Analysts expect Microsoft's capital expenditures to exceed $190 billion in fiscal year 2027, up about 65% from approximately $116 billion last year. Its free cash flow is projected to decline from $67 billion last year to less than $32 billion in fiscal year 2027, before gradually recovering 鈥?to about $47 billion in fiscal year 2028 and about $87 billion in fiscal year 2029.
Dan Sheehan, director of portfolio management at Telos Wealth Advisors, said he is not worried about Alphabet's negative free cash flow: "If it wanted to, it could cut spending somewhere at any time, and cash flow would come right back." He views such mega-cap tech companies as safe-haven assets with durable growth resilience in the market.
Cloud Growth Is Key: Market Awaits AI Monetization Signals
Against the backdrop of elevated capital expenditures, whether cloud business growth can accelerate has become the core indicator for investors to judge whether AI investments are worthwhile.
According to Bloomberg consensus estimates, Microsoft's Azure cloud business is expected to achieve 45% growth on a constant-currency basis this quarter. TD Cowen analyst Derrick Wood noted in an October 14 research report that third-party data shows Azure's performance this quarter is "the strongest in history," with the possibility of an "above-normal beat."
Alphabet's Google Cloud is expected to generate approximately $29 billion in revenue this quarter, up 91% year-over-year, accelerating from 81% growth in the previous quarter.
Ted Parrish, chief investment officer at Parrish Capital, said he holds Microsoft shares and plans to add to his position: "If we can see further acceleration in cloud growth, it will greatly boost investor confidence in AI investments."
Sheehan pointed out that the path to AI monetization is gradually becoming clearer: "We are starting to see marginal returns, though this is not yet enough to alleviate pressure on their balance sheets."
Notably, Anthropic's IPO filing this week further confirmed AI companies' heavy reliance on cloud giants 鈥?Anthropic has committed to spending at least $114 billion with Google and approximately $45 billion with Microsoft over the coming years, regardless of whether the related computing power is actually used.
ROI Concerns Dominate Pricing Logic
The divergence between CDS prices and stock prices reveals a subtle market reality: the equity market is still digesting disagreements, while the credit market has already begun pricing in tail risks.
Luke O'Neill stated bluntly: "Fear in the current market is clearly on high alert, and the core issue is spending versus return on investment." He believes Microsoft has won market favor because it has demonstrated a focus on capital discipline.
If the two companies disappoint on cloud growth or fail to effectively prove that spending is generating returns, their stocks will face downward pressure similar to Meta's. Meta's earnings last week showed several positive trends, but it immediately announced an increase in future spending commitments by $125 billion to $825 billion, and the stock fell 7% the next day.
For investors, the core question this earnings season is no longer growth itself, but whether growth can convert into cash fast enough 鈥?as the AI arms race continues to heat up, the answer to this question will determine the market's repricing of these two tech giants.
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