News · Yahoo Finance

Microsoft, Alphabet, and Amazon Make Up About 15% of the S&P 500. All 3 Report Earnings Within 2 Days.

The S&P 500 is up about 12% in 2026 excluding dividends, while Microsoft is up about 8%, Amazon about 7%, and Alphabet about 2% (based on its Class A shares); together these three stocks make up about 15% of the index. Microsoft and Alphabet report quarterly results on October 28, and Amazon follows on October 29. By the author's estimate, Apple and Nvidia added about 3 percentage points to the index's 12% gain, while the three laggards added about 1 point; had they matched the index, the fund would have gained almost 13%. Each stock has moved roughly 10% or more the day after at least one report this year. For a $10,000 position in an S&P 500 fund (about $1,500 in these three stocks), reactions like those after their July reports would add about $110, while reactions like those after the January and February reports would take away about $80. The author would not change anything in an S&P 500 fund before October 28.

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S&P 500earningsMSFTGOOGLAMZN

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AMZN

• Neutral

Amazon

Relevance: medium

MarketUS stocks
SectorConsumer Discretionary
IndustryBroadline Retail
Market cap$2.7T
Close on 10/23/2026248.04
Change that session-0.93%
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GOOGL

• Neutral

Alphabet Inc. (Class A)

Relevance: medium

MarketUS stocks
SectorCommunication Services
IndustryInteractive Media & Services
Market cap$4.0T
Close on 10/23/2026320.25
Change that session-1.22%
GOOGL price, forecasts and signals →

MSFT

• Neutral

Microsoft

Relevance: medium

MarketUS stocks
SectorInformation Technology
IndustrySystems Software
Market cap$3.9T
Close on 10/23/2026524.53
Change that session+0.66%
MSFT price, forecasts and signals →

QQQ

• Neutral

Invesco QQQ Trust

Relevance: medium

MarketUS stocks
SectorETF
Close on 10/23/2026704.39
Change that session-0.01%
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SPY

• Neutral

SPDR S&P 500 ETF

Relevance: medium

MarketUS stocks
SectorETF
Close on 10/23/2026759.85
Change that session-0.54%
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