Read the full analysis: AI Boom Checkup: Six Numbers To Study Before Big Tech Reports on ThorstenMeyerAI.com
TL;DR
SK hynix reported preliminary third-quarter operating profit of 83.3 trillion won, while Microsoft and Alphabet were due to report later on October 28, followed by Amazon on October 29. The figures to watch include chip profits, the concentration of US earnings growth, planned capital spending, cloud growth, free cash flow and evidence that data-center capacity is being used profitably.
SK hynix reported preliminary third-quarter operating profit of 83.3 trillion won on October 28, up 7.3 times from a year earlier, as investors awaited quarterly results from Microsoft and Alphabet that evening and Amazon the next day. The contrast between record chip-sector profits, heavy planned data-center spending and a steep decline in China’s AI-focused STAR50 index leaves a central question for investors: whether the AI boom can produce returns beyond its most profitable suppliers.
SK hynix, a major supplier of high-bandwidth memory used alongside AI processors, reported revenue of 104.6 trillion won, up 328% year over year, and an operating margin of 80%. The results were preliminary and unaudited. Net profit was 39.8 trillion won, down 58% from the previous quarter, which the source account attributed to non-operating items. The different movements in operating and net profit show why a single headline measure does not capture every part of the company’s results.
The company said long-term agreements with 14 major customers cover more than half of its capacity for 2027 and 2028. Its expectation that demand will exceed supply through 2030 is a company forecast, not an established outcome. SK hynix also announced a 14 trillion won dividend and a 20 trillion won share buyback for the quarter. The source account said its planned shareholder distributions for 2026 total about 100 trillion won, while noting that half of the buyback is allocated to employee compensation and is not counted by the company as a shareholder return.
The broader US earnings picture is strong but concentrated. FactSet’s blended estimate put S&P 500 third-quarter earnings growth at 29.5% as of October 23. In an October 19 calculation, FactSet analyst John Butters estimated that removing Micron and Nvidia would reduce the growth rate from 29.0% to 20.0%. Those figures are estimates, and several major companies had not reported. The source account also cites planned 2026 capital spending of roughly $725 billion to $745 billion by Alphabet, Amazon, Microsoft and Meta, based on its sum of their guidance.
Preview · 28 Oct 2026
Infographic 01 · The boom in numbers
Record profits, narrow growth, rising bills.
Six numbers from company releases, FactSet and the Census Bureau, before Microsoft, Alphabet and Amazon report.
Who carries the earnings boom
Q3 2026 earnings growth, year over year. Blended: reported results plus estimates.
S&P 500all 500 companies29.0%Without Micron + Nvidiatwo companies removed20.0%“Magnificent 7”Alphabet, Amazon, Apple, Meta, Microsoft, Nvidia, Tesla33.2%Mag 7 without Nvidia + Metathe other five7.5%The other 493rest of the S&P 50027.7%
The Wall Street Journal (Dow Jones Market Data) puts the two chipmakers at 34% of the expected growth. Top five contributors per FactSet: Micron, Nvidia, Meta, EchoStar, Boeing.
What the buyers plan to spend in 2026
Capital spending guidance, US dollars. Bars show the top of each range.
Amazonraised in July, citing memory prices~$220BAlphabetraised twice; “significant” increase in 2027$195–205BMicrosoftcalendar 2026, after a lease accounting change~$175BMetaQ3 free cash flow −$2.12B$135–145B
Q3 consensus: Alphabet free cash flow −$2.3B on $55.2B capex; Amazon −$9.9B on $58.7B. Definitions differ slightly (Microsoft includes finance leases).
Shovel seller
Revenue 104.6 trillion won, +328%Long-term deals cover >50% of 2027–28 capacityAbout 100 trillion won back to shareholders in 2026
Real economy
Core capital goods orders +10.9% this yearComputer orders +20.3% this yearCensus data do not label AI; semiconductors excluded from orders
Debt nerves
Cost to insure Meta’s debt +177% this year, Amazon’s +129%Oracle: $117B long-term debt, rated BBB-Off-balance-sheet leases don’t show up as debt (S&P)
Sources: SK hynix 3Q26 release, 28 Oct 2026 (preliminary); FactSet, 19 Oct 2026; Alphabet Q2 call, 22 Jul 2026; Amazon via CNBC, 30 Jul 2026; Microsoft via CNBC, 29 Jul 2026; Meta Q3 release, 21 Oct 2026; FactSet consensus via CNBC, 27 Oct 2026; US Census Bureau, advance durable goods report, 27 Oct 2026. Capex sum and bar scaling: Thorsten Meyer.
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Testing AI Spending Against Returns
The key issue is whether the companies building AI infrastructure can turn their spending into revenue and cash. Chip and memory suppliers are already reporting exceptional profits, but those results do not by themselves show whether cloud companies will earn enough from AI services to cover the cost of data centers, chips, power and related infrastructure.
That distinction matters to investors and to businesses planning around cloud services. If revenue growth and cash generation keep pace with investment, current spending may support durable earnings. If costs rise faster than returns, the market may reassess company valuations and future investment plans. The evidence presented so far is mixed: strong supplier results and rising demand for equipment, alongside substantial spending commitments and concerns about how concentrated earnings growth is.
The source account says analysts expect Alphabet and Amazon to report negative free cash flow again for the third quarter. That is an expectation, not a reported result. Their filings and guidance could show whether investment is being funded from operations, borrowing or other sources, and how management sees the relationship between capacity and demand.
A Split Market Before Results
The market indicators in the preview point in different directions. On October 27, the US Census Bureau reported that shipments of core capital goods rose 1.2% in September; orders for computers and related products were up 20.3% so far in 2026, according to the source account’s reading of the data. These figures are evidence of investment demand, but do not isolate spending on AI or establish that the spending will generate a profit.
In China, the STAR50 index, which tracks technology and chip-related companies, had fallen 40% since July by October 26, erasing about $480 billion in value, according to Reuters as cited in the source. The index was still trading at around 100 times past earnings. That market movement is a warning that sentiment can reverse sharply; it does not, on its own, prove that AI demand has weakened or that US companies will follow the same path.
The preview’s six-number framework brings these signals together: SK hynix’s operating profit as a measure of supplier strength; the share of index earnings growth attributable to a small number of companies; planned capital spending; cloud growth relative to that investment; free cash flow and funding; and management commentary on capacity. No single number answers whether the boom is sustainable.
“The company expects demand to exceed supply “through 2030.””
— SK hynix
Payback and Guidance Still Pending
The Big Tech results and their guidance were not yet available when the October 28 preview was written. The reported spending total of $725 billion to $745 billion is the author’s sum of company guidance; it is not a single company forecast. The source also does not specify each company’s precise spending breakdown or provide like-for-like figures for AI revenue against capital costs.
The earnings-growth estimates may change as more companies report. The 29.5% blended estimate and the 29.0% figure used in the Micron-and-Nvidia comparison have different stated dates in the source material. The comparison should be read as an estimate of how concentrated growth may be, not as a final accounting of reported earnings. Nor does the STAR50 decline establish what caused each investor’s decision to sell.
SK hynix’s results are preliminary and unaudited, and its long-term demand outlook remains a company projection. The source account says the company stopped reviewing a possible Solidigm funding round or listing, but does not report a final decision on the unit’s future financing. The extent to which AI-related demand supports future cash flow across the technology sector remains unsettled.
Results and Guidance Set the Next Test
Microsoft and Alphabet were scheduled to report on the evening of October 28, with Amazon due on October 29. Investors will be looking for cloud revenue growth alongside capital-spending guidance, as well as quarterly free cash flow and explanations of how new data-center capacity is being deployed. Management comments on customer demand, supply constraints and the timing of returns could help clarify whether investment is translating into paid usage.
Those results will not settle the longer-term question on their own. The next evidence will come from subsequent quarters: whether cloud growth holds up, whether spending continues to rise, and whether cash generation improves as capacity comes online. The source preview said it would add a dated update after the results; no post-results information is included in the supplied material.
Key Questions
What is the main development in this preview?
SK hynix reported preliminary record quarterly revenue and operating profit on October 28, just before results from Microsoft and Alphabet and a day ahead of Amazon’s scheduled report. The preview uses those events to assess the AI boom’s profits, spending and potential returns.
How much did SK hynix’s operating profit rise?
It reported 83.3 trillion won in third-quarter operating profit, up 632% from 11.4 trillion won a year earlier, or about 7.3 times the prior-year figure. The results were preliminary and unaudited.
Why does the article focus on free cash flow?
Free cash flow can help show whether a company’s operations generate cash after investment. With major technology companies planning heavy capital spending, investors will compare that spending with cloud growth and cash generation. The preview says analysts expected negative third-quarter free cash flow again at Alphabet and Amazon; their results were still pending.
Does the STAR50 decline prove the AI boom is ending?
No. The source reports that the China-focused STAR50 index fell 40% since July by October 26, but that movement does not establish why investors sold or prove that AI demand has weakened elsewhere. It is a sign of market volatility, not a definitive verdict on the sector.
Source: ThorstenMeyerAI.com