Thanks to a sell-off in April and a hike in 10-year Treasury note interest rates, investors can scoop up bargains among closed-end funds this month, according to TheStreet.com. Mariana Bush, a closed-end fund analyst at Wachovia, told TheStreet.com that the downward price spiral began mid-April when investors liquidated some shares before the tax deadline, while others collected profits from closed-end fund shares they acquired last December when valuations were low. As a result, closed-end shares can trade at premiums or discounts to their underlying net asset value, says TheStreet.com, but investors are warned that every fund that offers a big payout may not be a good investment choice.