ETFs are off to the strongest start in history: So far this year, global ETFs have attracted over $518 billion in inflows, setting a new record. This is 30% faster than the same period last year and more than 5 times the average pace of previous years. The inflows are primarily driven by U.S. ETFs, with the S&P 500 Index ETF $VOO pulling in $55.7 billion. Next up is the money market ETF $IQMM, which saw a $22.4 billion increase in market value, followed by the S&P 500 Index ETF $SPYM, with a $21.4 billion increase in market value. Investors are pouring into the ETF market more enthusiastically than ever before. What does it mean when retail investors are rushing into index funds like this?