The S&P 500 closed the week at 7,811.54, up 88.82 points, or 1.15%, from October 2 to October 9. Breadth was broad, with 355 of the index's 503 members higher on the week, and concentration sat at 38%, which the payload tags as a mixed week rather than a narrow one.
Microsoft led with 15.57 points on a 3.39% gain, followed by Amazon at 12.73 points on 4.34%, Alphabet's Class A shares at 5.7 points, Palantir at 5.4 points on a 10.75% move, and Visa at 4.96 points. On the other side, Nvidia was the heaviest drag at negative 13.76 points on a 2% decline, with Intel down 8.83 points on a 12.26% slide, Micron off 6.21 points, AMD down 5.27 points, and Lam Research down 4.25 points.
The Dow
The DJIA closed at 51,655.00, up 478.04 points, or 0.93%, with 22 of 30 members higher. Concentration ran to 67%, a narrow week by the payload's own label, and the gap with the S&P's mixed profile shows up immediately in the names.
Visa supplied 147.34 points on a 6.87% gain, nearly a third of the Dow's entire advance by itself. Microsoft added 104.25 points, Amgen 70.31 points on a 2.94% move, Amazon 64.84 points, and Travelers 49.75 points. Caterpillar was the story on the other side of the ledger, subtracting 267.16 points on a 5.32% decline, a single-stock drag larger than the index's net gain. Goldman Sachs took off 43.03 points, Honeywell 37.21 points, Salesforce 33.05 points, and Nvidia 27.76 points. Caterpillar does not appear among the S&P 500's bottom five, which marks this as a Dow-specific hit rather than a broad market theme.
The Nasdaq 100
The Nasdaq 100 closed at 30,883.15, up just 75.22 points, or 0.24%, with 66 of 101 members higher. Concentration measured 345%, a narrow read that signals the gross swings inside the index dwarfed its tiny net move.
Amazon contributed 98.62 points on its 4.34% gain, and Alphabet's two share classes together added 160.67 points, 83.3 from the Class A shares and 77.37 from the Class C shares. Apple added 73.45 points on a modest 0.88% move, and Microsoft added 66.85 points. Against that, Nvidia subtracted 126.61 points on a 2% decline, Meta cut 59.03 points on a 1.29% decline, Space Exploration Technologies subtracted 49.47 points despite a 2.27% gain in the payload's return figure, Intel dropped 42.42 points on its 12.26% slide, and Arm fell 34.02 points on a 13.4% decline. Where the Dow's drag was concentrated in one industrial name, the Nasdaq's came from a cluster of chip and semiconductor-adjacent stocks, which is the clearest divergence from both the S&P and the Dow this week.
The sectors
Eight of eleven sectors rose this week, led by defensive and cyclical groups rather than technology.
Utilities was the strongest sector, up 3.93%, adding 1.57 points, with Constellation Energy the top driver at 0.44 points on a 15.76% gain.
Technology was the weakest sector, down 0.52%, losing 1.03 points, with Intel the top driver of that decline at negative 0.84 points on its 12.26% slide. Industrials was the only other sector in the red, down 0.41%, with Caterpillar as its top driver at negative 0.67 points.
The payload does not carry a percentile reading against the past year for any of the three indices this week, so no claim is made here about how this move ranks historically.
The numbers
- The S&P 500 closed at 7,811.54, up 88.82 points, or 1.15%, for the week.
- The Dow closed at 51,655.00, up 478.04 points, or 0.93%, for the week.
- The Nasdaq 100 closed at 30,883.15, up 75.22 points, or 0.24%, for the week.
- S&P 500 breadth was 355 of 503 members higher, while the Dow's breadth was 22 of 30 and the Nasdaq 100's was 66 of 101.
- Visa was the Dow's biggest driver, adding 147.34 points on a 6.87% weekly gain.
- Caterpillar was the Dow's biggest drag, subtracting 267.16 points on a 5.32% weekly decline.
- Nvidia was the Nasdaq 100's biggest drag, subtracting 126.61 points on a 2% weekly decline.
- Utilities was the strongest sector, up 3.93%, and Technology was the weakest, down 0.52%.
- No percentile data against the past year was available in the payload for any index this week.
From Babylon Burns
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