Standard & Poor’s 500-Stock Index

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How the S&P 500 Stock Index Became So Skewed to Tech and A.I.

The shifting composition of big public companies in the stock index shows how lopsided and less dynamic the American economy has become.

How the S&P 500 Stock Index Became So Skewed to Tech and A.I. Read More »

Mixed Signals Churn Stock Market Despite Recent Highs

Major indexes have mostly been treading water for months, as investors’ exuberance for artificial intelligence wears off.

Mixed Signals Churn Stock Market Despite Recent Highs Read More »

Wall Street Sees Another Banner Year for Markets. Could Anything Stop It?

Analysts have forecast more stellar gains for the S&P 500. But concerns about inflation, the dollar and sky-high valuations could make for a choppy run.

Wall Street Sees Another Banner Year for Markets. Could Anything Stop It? Read More »

Will the A.I. Boom Continue to Drive Up Stocks in 2026?

The boom in artificial intelligence was the biggest driver of gains in the stock market. That could pose a risk in 2026.

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Why the A.I. Rally (and the Bubble Talk) Could Continue Next Year

Big Tech’s huge investment in artificial intelligence is making investors nervous. But the technology continues to advance, buoying the bulls.

Why the A.I. Rally (and the Bubble Talk) Could Continue Next Year Read More »

From A.I. to Tariffs, 14 Charts That Explain 2025

President Trump’s trade policy, inflation and climbing stock prices shaped business and the economy this year.

From A.I. to Tariffs, 14 Charts That Explain 2025 Read More »