Morgan Stanley told its financial advisers Friday that they could start pitching two bitcoin exchange-traded funds to wealthy clients next Wednesday, according to people familiar with the matter. The bank told its roughly 15,000 financial advisers that they could pitch BlackRock’s iShares Bitcoin Trust and the Fidelity Wise Origin Bitcoin Fund to eligible customers. Registered investment advisers, who are influential in directing capital to ETFs, have had limited access to the bitcoin funds since they launched in January.