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The Market Ear

May 18, 2026

Semis Finally Blink

Market ReportEquitiesRates Govt BondsInformation Technology

The Philadelphia Semiconductor Index (SOX) is finally showing signs of stress as it breaks technical trend lines after an aggressive AI-driven rally. Current metrics place the sector in historical bubble territory, particularly relative to its 200-day moving average and rising interest rates.

Key Takeaways

  • 1.The Semiconductor Index (SOX) is showing technical stress, breaking its steep trend line and 8-day moving average.
  • 2.Current semiconductor valuations are in historical bubble territory, with the SOX trading 62% above its 200-day moving average.
  • 3.There is a significant disconnect between semiconductor performance and rising 10-year US Treasury yields.

Table of Contents

  • SOX cracks
  • SOX superlatives
  • Shorts
  • Immune to rates?

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