Morningstar indicated that Eaton Vance held over 1% of the outstanding shares, but amazingly enough they no longer list it. However, Eaton Vance Balanced fund A indicates they hold Ram shares. All the other Eaton Vance funds that hold the preferred shares indicate that they are the series A. This fund does not indicate it, which is why I assume they are common. Eaton Vance has a pretty navigable website to review the holdings in each of their funds. Edgar is a little more difficult when it comes to this particular fund.
That looks to be the RAMR Pfd holding...guess they list at 0% coupon because they aren't getting anything in divies. Interestingly, they are valuing their position of $1,064,000 at $585,000...which would be over 50 cents on the dollar...that's a little rich. I would NOT be investing in their funds if that's how they value illiquid positions that no longer pay dividends!!