<div id="readability-page-1">Market's turbulent climb: The S&amp;P 500 swung sharply in 2026 but remains up 8.5% amid geopolitical and economic headwinds. Earnings power surge: First-quarter earnings jumped nearly 28% year over year, the strongest growth since late 2021. Tech-heavy influence: Mega-cap technology stocks dominate the index, heightening its sensitivity to the sector’s performance.</div>

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<p>The S&P 500 has experienced significant volatility in 2026, yet it remains up 8.5% despite geopolitical and economic challenges. First-quarter earnings surged nearly 28% year over year, marking the strongest growth since late 2021, with mega-cap technology stocks significantly influencing the index's performance.</p>

- The S&P 500 experienced significant fluctuations in 2026, yet it is up 8.5% despite geopolitical and economic challenges.  
- First-quarter earnings increased nearly 28% year over year, marking the highest growth since late 2021.  
- The index's performance is heavily influenced by mega-cap technology stocks, which increases its sensitivity to movements in the tech sector.

S&P 500 rides volatility as earnings surge but risks loom