"Vanguard Group is ... threatening to prevent Southwest Airlines pilots who subscribe to a monthly newsletter called 401k Maximizer from purchasing the three Vanguard funds in their union's retirement plan, according to officials at Vanguard, the pilots union and the newsletter. Fewer than 1,000 of the approximately 8,000 pilots in the Southwest Airlines Pilots' Association $2.6 billion 401(k) retirement plan subscribe to Maximizer, but they can generate $30 million to $45 million of trades in each fund in the week after the newsletter changes its investment model[.]"  MORE >>