Legendary fund manager Joel Tillinghast advises equity investors to achieve long-term success by avoiding major mistakes and identifying undervalued companies with high potential for solid long-term gains.Tillinghast believes that to achieve great long-term portfolio performance, an investor doesn’t need to pick the most exciting stocks or be bold and daring in their choices. Legendary fund manager Joel Tillinghast advises equity investors to achieve long-term success by avoiding major mistakes and identifying undervalued companies with high potential for solid long-term gains.Tillinghast believes that to achieve great long-term portfolio performance, an investor doesn’t need to pick the most exciting stocks or be bold and daring in their choices. Economic Times