This under-the-radar ETF trend may be flashing a warning signal for the market
1. Retail investor exuberance in ETFs indicates market warning signs. 2. ARKK saw massive retail inflows during past market peaks. 3. ETF product proliferation is at an all-time high. 4. Nontraditional ETFs are mostly retail-owned and extremely volatile. 5. High inflows into thematic ETFs could signal market overheating.