The approval of dual share classes may be one of the fund world’s biggest changes in decades, but it’s facing an age-old problem: square peg meets round hole. The settlement processes that underpin the fund structures weren’t designed to work together and were established years apart, which complicates things for intermediaries handling trades of mutual fund shares for ETFs. “The best analogy is that scene in Apollo 13 where they’re trying to get the carbon dioxide out of the spacecraft,” said Kip Meadows ...