This Wall Street-Heavy ETF Is Seeing Trading Madness

Stock investors may have shrugged off bank earnings, but ETF buyers who hold the titans of Wall Street are clearly paying attention.

Investors traded almost $140 million worth of Invesco Ltd.’s PowerShares KBW Bank Portfolio, or KBWB, on Tuesday, marking the exchange-traded fund’s largest daily turnover in more than a year. And on Wednesday, over $107 million of shares traded, which is more than four times the fund’s daily average in the past year, according to Bloomberg data.