TD Waterhouse was a subsidiary of TD bank. TD bought back TD Waterhouse. The successor company is TD Ameritrade, but I'm not sure how much of that is Waterhouse and how much is the old Ameritrade.
It's also tricky to look at market cap versus price. Many of these companies issued additional shares at low valuations. Priceline, for example, is at about where it traded right after the IPO--but its market cap has more than doubled.
It's also tricky to look at market cap versus price. Many of these companies issued additional shares at low valuations. Priceline, for example, is at about where it traded right after the IPO--but its market cap has more than doubled.