Stock Market’s Calm Belies Extreme Swings in Individual Shares

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Affected assets and topics

MARKET SHARES VOLATILITY EQUITY

Why it matters

The stock market appears calm, but individual shares are experiencing extreme swings, with 47 instances of sharp selloffs among the 100 largest index members, according to Barclays. This trend is expected to continue this year, particularly with the rise of artificial-intelligence themed shares. Volatility is now centered around individual stocks rather than the overall market.

Article tone

Neutral How the article is written, as reported by the source.

Expected market reaction

Bearish Confidence 80% How confidence is read Horizon: Short term Impact: Moderate

Market impact analysis based on bearish sentiment with 80% confidence.

Evidence trail

Evidence
Source Yahoo Finance
Claim Stock Market’s Calm Belies Extreme Swings in Individual Shares
AI inference Bearish · 80%
Generated 2026-01-15 10:30

AI provenance

Analysed by Llama 3.1 8B Instant (Groq) Methodology v1.0 Generated
Technical identifiers
Provider tag
groq-llama-3.1-8b-instant
Analysis version
groq-llama-3.1-8b-instant
Article id
33005

Original source

Between the 100 largest index members, there were 47 instances of sharp selloffs — specifically, a drop of five standard deviations or more, a move so rare it’s often considered an anomaly, according to Barclays. More of the same is probably ahead this year, Barclays says, in a call that underscores in part how dependent the benchmark gauge has become on the trajectory of shares related to the artificial-intelligence theme. “Single stocks have become where the center of gravity of volatility is,” Stefano Pascale, head of US equity derivatives research at Barclays, said in a phone interview.

Read the full article on Yahoo Finance

Original article published by Yahoo Finance on January 15, 2026. Analysis and insights provided by AnalystMarkets AI.

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