Actually, it was the whole damn $3 million that Mitt didn't disclose. They only found it because of the roughly $1,700 in interest he disclosed for it on his tax records, which he didn't disclose on his ethics forms. This is a major bone-headed move on Mitt's part. Woot Woot!
Something isn’t right here. $1,700 in interest on 3 million is less that .1% (less than a tenth of a percent). They wouldn’t stay in business of this is all they made for their private banking customers.
Maybe he closed this account early in the year. Swiss banks are closing out their US client accounts because of the new US regulations, but I believe the closing of US accounts happened later in the year, not the beginning of last year.