The reconstitution will increase the concentration of the top 10 largest companies in the large-cap Russell 1000 Index.
When different parts of the market send conflicting signals, who should investors believe?
So far this week, more than $1 billion has flooded into the $35 billion Invesco S&P 500 Equal Weight ETF.
Expectations and valuations may just be too high as the S&P 500 has gained 6% in 30 calendar days.
The Nasdaq 100 offered the second biggest return in Bloomberg's ranking, at 19% year-to-date.
Easing of credit-market stress has helped push the S&P 500 up four of the last five days.
Treasurys sank to fresh lows after the Fed chairman signaled a hawkish stance for the central bank.
Its unwinding takes place as the hype over digital assets fizzles out dramatically.
More than 400 new ETFs launched despite a harsh bear market.
The $15 trillion mutual fund universe still far outweighs the $6 trillion ETF market.