Schwab, which relies less on trading commissions than its competitors, is betting it can of set any decline of revenue by attracting more clients. It can then use their assets to generate interest...

Schwab, which relies less on trading commissions than its competitors, is betting it can of set any decline of revenue by attracting more clients. It can then use their assets to generate interest income, an essential feature of its business that’s come under pressure recently as interest rates have declined.