Market insiders who quickly buy and sell mutual funds work the system, earn huge profits, and harm long-term investors. NPR's Chris Arnold reports on how market timing works.
NPR correspondent Chris Arnold is based in Boston. His reports are heard regularly on NPR's award-winning newsmagazines Morning Edition, All Things Considered, and Weekend Edition. He joined NPR in 1996 and was based in San Francisco before moving to Boston in 2001.