Investors seeking maximum returns should concentrate on growth stocks. These firms often deliver high revenue growth. Some of these companies are profitable while others are narrowing their losses. Some growth stocks can generate more gains in 1-3 years than most indexes accumulate within a decade.Growth powerhouse stocks can generate those types of gains, but not every growth stock is a winner. Furthermore, some growth stocks are enticing for 1-3 years and then fizzle out after they stop growing. Investors ...