Investors took record leverage into this week's decline: US leveraged ETFs attracted +$9.5 billion in inflows in the week ending October 16th, their largest weekly intake on record in data going back to 2006. This is more than double the previous weekly record inflow of +$4.5 billion, set in 2024. By comparison, the largest weekly outflow was -$7.5 billion in late 2025. This comes as the 3x leveraged long Semiconductor ETF, SOXL, attracted +$7.0 billion in inflows that week, its largest weekly inflow on record. At the same time, the 3x leveraged long Nasdaq 100 ETF, TQQQ, attracted +$1.3 billion. Investors are highly levered amid the volatility.