April 12, 2011 Symbol: MERDX Expense Ratio: 0.84% 800-446-6662Rick Aster, who specializes in fast-growing, midsize companies, has run this superb fund since its 1984 launch. He seeks firms with the stamina to keep on growing. Large positions include Royal Caribbean Cruises and T. Rowe Price. See FUND TABLES: Kiplinger 25 at a Glance for the complete list of our favorite no-load mutual funds. Visit Kiplinger's Model Portfolios for three examples of how you can put Kiplinger 25 funds to work. The portfolios are designed for investors with differing time horizons and levels of risk tolerance. If you find them too aggressive, cut back each basket's allocation to stocks by ten percentage points. If you're investing in a taxable account, replace one or more of the bond funds with Fidelity Intermediate Municipal Income (FLTMX). And for a collection of all our Kiplinger 25 content, see KIPLINGER 25: A Guide to Our Favorite No-Load Funds.