MOAT holds a concentrated portfolio of stocks that are attractively priced and have sustainable competitive advantages (patents, high switching costs, etc.). Morningstar's equity research team determines the funds selection by assigning an economic rating and a fair value estimate to the companies in the Morningstar US Market Index. Despite its safe-sounding name, MOAT makes radical departures from market-like coverage. The fund favors single-name positions and may have significant sector biases. It follows an equal-weighted index with a staggered rebalancehalf the portfolio is reconstituted with equal weights every six months, and the other half follows three months later. MOAT also caps turnover and sector exposure. This results in the fund holding more than 40 names at times.