Wall Street's Question This Week: When Does the Money Spent on AI Come Back?
A Fed decision and earnings from Microsoft, Alphabet and Amazon land in the same week. Capital needs and returns on AI investment may matter more to markets than AI growth itself.

Earnings are strong. Why is the market uneasy?
U.S. stocks closed Friday, Oct. 23, with the S&P 500 at 7,623.68 and the Nasdaq Composite at 25,955.34. Both indexes fell for the week, while the Dow rose 0.41% and the Russell 2000 gained about 2%.
The market did not break down across the board. One reading is that investors are demanding more from richly valued growth stocks and AI-linked companies.
Two numbers stand out: the 10-year Treasury yield near 5% and WTI crude above $100 a barrel. High yields lower the present value of future earnings. Rising oil prices can feed inflation and risk extending the Fed's tightening.
AI adds its own problem. Demand for chips and data centers may be strong, but whether the companies building those facilities can keep raising money is a separate question.
Ed Yardeni of Yardeni Research has flagged the scale of AI companies' spending and borrowing as a concern. He cut his year-end 2026 S&P 500 target to 7,900 and pushed back the timing of his earlier 8,400 target to mid-2027. The war in the Middle East and higher oil prices are also major worries for him.
Three events that could move the market this week
| U.S. schedule | Event | What investors will look for |
|---|---|---|
| Wed., Oct. 28 | FOMC rate decision, Chair Warsh press conference | Odds of another hike in December |
| Wed., Oct. 28 | Microsoft, Alphabet earnings | Azure and Google Cloud growth, AI investment |
| Thu., Oct. 29 | Q3 GDP advance estimate, September PCE price index | Growth, core inflation, Treasury yields |
| Thu., Oct. 29 | Amazon earnings | AWS growth, capital spending, cash flow |
The Fed announcement is at 2 p.m. Eastern on Wednesday, with the press conference at 2:30 p.m.
The Fed can rattle markets even with a hold
In a Reuters poll on Oct. 20, economists expected the Fed to hold rates in October, and all 100 respondents forecast a hike in December. That is a survey result, not the same as the probability priced into fed funds futures.
The Fed's current target range is 3.75% to 4.00%. A hold this week is largely expected, so the market is likely to focus on how Warsh weighs inflation against economic growth.
The key issue is less whether rates rise than how long they stay high. With Big Tech capital spending and data center operators' borrowing costs both climbing, moves in long-term Treasury yields matter.
AI spending: look at cash flow as well as revenue
The three companies' numbers should not be read the same way.
For Microsoft, the link between Azure growth and AI capital spending is central. If cloud revenue grows but depreciation and operating costs grow faster, questions about profitability remain.
For Alphabet, Google Cloud growth and operating profit improvement need to be read together. Whether expanding AI search erodes the profitability of traditional search advertising is another key variable.
For Amazon, AWS growth and company-wide free cash flow are the focus. The question is how much the build-out of AI data centers is squeezing cash generation.
AI infrastructure suppliers sit in a different position. For Nvidia, HBM memory makers, networking firms and chip equipment makers, customer spending turns into revenue. But if hyperscalers find funding harder to come by, order schedules could be affected over time.
Strong near-term results at chip companies therefore do not show that the whole AI investment cycle is safe.
The most important question for the week comes down to one thing: not how much money AI needs, but how much sustainable profit that money can produce.
Insight Times Editorial Desk


































