 Guggenheim Capital LLC lifted its stake in shares of Advent Claymore Convertible Sec Inc Fd NYSE:AVK by 9.8 in the 1st quarter, HoldingsChannel reports. The firm owned 502,582 shares of the investment management companys stock after buying an additional 44,742 shares during the quarter. Guggenheim Capital LLCs holdings in Advent Claymore Convertible Sec ... 