Bloomberg: Yahoo has filed to spin off its shares in Alibaba into a company to be called Aabaco, a move still set for the fourth quarter. The new entity will be independently traded and hold about 15 percent of Alibaba ownership interest, or 384 million shares, Yahoo said in a statement. The new company will include Yahoo’s small-business service. Yahoo CEO Marissa Mayer, trying to drive a turnaround, has benefited from the stake in Alibaba, the largest e-commerce company in China.