The week in 5 minutes
The week's gains were narrow and unevenly distributed. Technology added 3.61% and pulled the Nasdaq 100 up 3.31%, but six of eleven sectors finished lower, and small-caps slipped 0.74%. The S&P 500 rose 1.28% on the back of large-cap tech rather than broad participation.
Broad uptrend with healthy participation: most stocks above trend.
What moved the week, and what it sets up
AMD's market capitalisation crossed $1 trillion this week, a milestone that arrived while Treasury yields were sitting at levels last seen in 2007. The combination of a mega-cap tech breakthrough and elevated borrowing costs sharpened the split already visible in the sector table: high-growth, long-duration names benefited from momentum, while Financials fell 1.51%, Utilities dropped 3.11% and Real Estate shed 1.45%. For anyone managing their own money, this sets up a market where rate-sensitive sectors and growth sectors can move in opposite directions on the same day, widening the range of outcomes within a single portfolio. Fed meeting dates and yield moves are likely to carry more weight than usual for the remainder of 2026.
Where the money went
Weekly total return of the 11 SPDR sector ETFs, measured Friday close to Friday close.
| Technology | +3.61% | |
| Communication Svcs | +2.22% | |
| Health Care | +1.76% | |
| Industrials | +0.68% | |
| Materials | +0.06% | |
| Consumer Discretionary | -0.20% | |
| Consumer Staples | -0.24% | |
| Real Estate | -1.45% | |
| Financials | -1.51% | |
| Energy | -2.93% | |
| Utilities | -3.11% |
The prints that mattered
Ranked by surprise versus consensus. Figures from the reported quarter.
| Company | Actual | Source |
|---|---|---|
Costco's quarter was built on strong digital sales and pharmacy growth, but a $152 million charge tied to memory chip inflation in electronics was the detail that dominated the conversation. Analysts at Bernstein and Mizuho kept their positive ratings while trimming price targets, suggesting the charge was noted rather than dismissed. | 6.60 | Full report › · Our thesis › |
Sep 28 – Oct 2
What is scheduled. Not a forecast of how it lands.
Names we have a view on
What in each report would support or undermine our published research. Business facts only, not price calls.
Confirms: Gross and operating margin expansion alongside stable or growing direct-to-consumer revenue would signal the turnaround is gaining traction.
Breaks: A further contraction in operating margin or declining free cash flow generation would suggest operating leverage improvements remain elusive.
Confirms: Strong HBM and DRAM pricing guidance, robust bit-shipment growth outlook, and sustained operating margins would validate the memory upcycle thesis.
Breaks: A cut to DRAM or HBM demand guidance, slowing bit-shipment growth, or operating margins showing early compression would indicate the upcycle may be peaking.
Confirms: Bookings growth acceleration, stable or expanding free cash flow margins, and rising generative AI consulting demand would reinforce the durable compounder thesis.
Breaks: Negative organic revenue growth or operating margin falling toward the low teens would signal consulting and outsourcing demand is deteriorating meaningfully.
What this means
The week ahead carries three high-impact releases: GDP and PCE inflation both land on September 30, followed by the Jobs report on October 2. JOLTS on September 29 adds a medium-impact labour read early in the week. A week with simultaneous growth, inflation and employment data historically produces wider intraday ranges, particularly around each release, as the market recalibrates its rate outlook with each print. Earnings from NKE, MU and ACN run alongside the macro schedule, with MU reporting after the close on September 30, the same day as GDP and PCE.
Not personalized advice, and not a recommendation to buy or sell any security. Figures are sourced from public market data and the agencies linked above.
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