Amazon's Cloud Surge Overpowers Apple's Supply Warning as July Ends a Wild Month

The S&P 500 closed Friday at 7,489.72, up 0.70%, as a blockbuster cloud-earnings beat from Amazon overpowered a guidance-driven slide from Apple and gave the AI capex trade a fresh vote of confidence^[1][2]. The Nasdaq Composite surged 1.0% to 25,373.85 and the Dow Jones Industrial Average added 0.53% — about 277 points — to finish at 52,485.03^[2]. All three major indexes posted weekly gains, though July as a whole was mostly lower^[1].

Beneath the headline green, the breadth was narrow. The Russell 2000 (IWM) fell 0.48% to 291.20^[3]. Financials (XLF) slipped 0.11%, health care (XLV) dropped 0.59%, and even the Technology Select Sector ETF (XLK) finished marginally lower at -0.22%^[3]. Energy (XLE) was the standout sector, up 1.01%^[3]. As Interactive Brokers noted, “only three of the primary S&P 500 sectors traded higher,” a sign that megacap earnings — not broad risk appetite — carried the tape^[1].

Amazon: AWS Acceleration to 37% Growth

Amazon delivered the single most consequential earnings print of the week. Net sales increased 20% year-over-year to $200.6 billion — the first time quarterly revenue crossed $200 billion^[4]. Operating income rose 43% to $27.5 billion. But the headline was AWS: cloud revenue grew 37% year-over-year to $42.2 billion, the fastest growth rate in 18 quarters and well above the 31% analysts had expected^[4].

CEO Andy Jassy said the $169 billion annualized run-rate cloud business is seeing AI and core services “driving each other’s growth”^[4]. The company also signaled that capital spending would reach $220 billion this year^[4] — a staggering figure that, depending on one’s perspective, either confirms the AI infrastructure boom is real or raises the bar for eventual return on that investment.

The market chose the optimistic read. AMZN closed at $271.58, up 15.32% on the session^[5][6].

Apple: Supply-Chain Strains Sink the Outlook

Apple’s earnings told a mirror-image story. The company posted fiscal Q3 revenue of $109.4 billion, up 16% year-over-year, with diluted EPS of $2.02 — both records^[7]. But the Q4 guidance disappointed: Apple forecast September-quarter sales growth below Wall Street targets, citing chip shortages driven by high iPhone demand and rising memory costs^[7].

The stock fell 7.35% to $308.91^[5][6]. Management said the Mac supply shortage problem that has persisted all year is about to get worse^[7].

Microsoft: Cloud and AI Strength Confirms the Pattern

Microsoft, reporting July 29, reinforced the Amazon narrative. Revenue reached $90.0 billion, up 18%, with operating income of $40.6 billion^[8]. Azure growth and healthy forward guidance pushed MSFT up 3.02% to $464.72 on the week’s final session^[5][6]. CFO Amy Hood said capital spending plans for fiscal 2026 are unchanged, with more coming in the new fiscal year, and that Microsoft should remain cash-flow positive in fiscal 2027^[8].

Among other megacaps, META gained 3.28% to $556.71 and NVDA rose 2.93% to $200.75^[5][6]. AMD bucked the trend, falling 1.90% to $476.15^[5].

The Bond Market’s Counter-narrative

While equities celebrated cloud growth, the Treasury market was telling a less comfortable story. The 30-year Treasury yield hit 5.28%, its highest level since 2007, and the 10-year note yield climbed to 4.67%^[9]. The 10-year minus 2-year spread widened from +34 basis points to +47 basis points — a bear steepener that signals the bond market is pricing in persistent inflation rather than rate cuts^[9].

The Fed left rates unchanged at its July 29 meeting, with the funds rate at 3.63%^[10]. But the market read the pause as insufficient. As the Financial Post reported, the yield surge sent a “credibility warning” to Fed Chair Kevin Warsh — the bond market is effectively saying the Fed is not moving fast enough to tame inflation^[9].

This is the tension underneath the equity rally: AI-driven capex and cloud growth can lift megacap earnings, but the same fiscal and inflationary pressures driving yields higher also raise the discount rate on all future cash flows. The macro snapshot as of June 2026 shows CPI inflation at 3.46% year-over-year, still well above the Fed’s 2% target, with consumer sentiment at 49.5 — down 18.45% year-over-year^[10].

Oil’s 22% July Rally

Energy was the only sector ETF besides the index proxies to close meaningfully higher, and the reason was crude oil. Oil rallied approximately 22% in July, driven by supply concerns centered on the Strait of Hormuz and recovering global demand^[11]. XLE closed up 1.01% to 59.55^[3]. The IEA’s July oil market report noted a recovery in world oil demand^[11], and Oppenheimer upgraded the energy sector to “tactically attractive” on July 21^[11].

The oil rally complicates the inflation picture. Higher energy costs feed through to transportation, manufacturing, and consumer prices, reinforcing the bond market’s message that inflation is not yet beaten.

Megacap Scorecard: Friday, July 31

All closes as of 16:00 ET on July 31, 2026. Source: FMP via FN2^[5][6].

What to Watch Next

• July jobs report (Friday, August 7, 8:30 AM ET): The Bureau of Labor Statistics releases July nonfarm payrolls. June’s print was just 57,000 — well below forecasts — and the unemployment rate is expected to tick up to 4.3%^[12]. A weak number would intensify the stagflation debate; a strong one would give the Fed cover to hold or hike. The current unemployment rate sits at 4.2%^[10].
• Earnings deluge: Palantir, AMD, and SanDisk headline the first full week of August earnings^[12]. AMD’s report will be particularly watched as a read on semiconductor demand outside the hyperscaler cloud buildout.
• Treasury yields: Whether the 30-year holds above 5.28% or retreats will shape equity valuations. A continued bear steepener would compress multiples even as earnings deliver.
• Oil and Hormuz: The 22% July crude rally leaves Strait of Hormuz throughput as the key swing factor^[11]. Any escalation in Iran-related shipping disruption would amplify the inflation signal.
• Breadth: The narrowness of Friday’s rally — three sectors up, the rest down, small caps lower — is worth monitoring. A market that depends on a handful of megacap cloud names to hold its level is more fragile than the index prints suggest.

The balanced read is this: Amazon and Microsoft have demonstrated that AI infrastructure spending is producing real, accelerating revenue — not just capex promises. That is a genuine fundamental positive. But the same economy is producing 3.46% inflation, 5.28% 30-year yields, a 22% oil rally, and 49.5 consumer sentiment. Both things are true simultaneously. The question for August is which truth the market decides weighs more.