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Why Thematic ETFs Make Me Nervous
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Why Thematic ETFs Make Me Nervous

Yahoo Finance · Jun 28, 2026, 4:20 PM

Key takeaways

  • NVDA When it comes to investing, exchange-traded funds (ETFs) are near the top of my list.
  • I know how valuable ETFs can be for building a diversified portfolio.
  • In 2009, a "Double Down" signal flashed for a little-known chipmaker called Nvidia.

NVDA When it comes to investing, exchange-traded funds (ETFs) are near the top of my list. That's why I'm surprised by how nervous thematic ETFs make me. While I'm all about broad-market ETFs, those tracking a single sector immediately raise caution flags.

I know how valuable ETFs can be for building a diversified portfolio. However, here are some red flags I need to come to terms with before investing in a thematic ETF. Here's where I get stuck.

Missed Nvidia in 2009? This Rare Signal Is Flashing Again. In 2009, a "Double Down" signal flashed for a little-known chipmaker called Nvidia. For the first time in years, that same "Total Conviction" signal is flashing for a company 1/100th the size of Nvidia. Continue »

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