abian knew from the very beginning that his wife was trading like hell (and he himself might involve in the trading too). Since the public had found out this, he had no choice but to apologize (abian always is a tricky rat, you know). This is just my guess.
Do you believe that a husband does not know what his wife is doing even the trivial things? Give me a break!
It's common sense that abian knows what his wife was doing. The interesting thing is president's wife day trading stock! What? If his wife is not an insider, then There is no insider in stock market! Did anyone see any US first lady day trading stock? If the first lady in US does trade stock, what would happen next? I am laughing at Taiwan's insider now.