DIAMONDS TRUST SHARES $125 (American Exchange symbol DIA; buy or sell through brokers) hold the 30 stocks that make up the Dow Jones Industrial Average. Expenses are about 0.18% of assets. Currently, the fund’s top 10 holdings are IBM, 3M, Boeing Co., United Technologies, Caterpillar, Altria Group, American International Group, Johnson & Johnson, Procter & Gamble and Exxon Mobil. Diamonds Trust Shares are a buy.