The WisdomTree U.S. MidCap Dividend Fund ETF (NYSEARCA: DON ), launched on 06/16/2006 by WisdomTree Inc. and co-managed by WisdomTree Asset Management, Inc. and Mellon Investments Corporation, provides dividend-focused exposure to the mid-cap segment of the U.S. equity market. It charges 0.38% as an expense ratioAnalyst’s Disclosure:I/we have no stock, option or similar derivative position in any of the companies mentioned, and no plans to initiate any such positions within the next 72 hours. I wrote this a ...