Defensive vs. Enterprising Investors: Graham devoted several chapters of his book that addressed the distinction between approaches to investment. An enterprising, or active investor makes “a serious commitment in time and energy to become a good investor who equates the quality and amount of hands-on research with the expected return,” according to Daniel Myers in an article posted on Forbes magazine’s website. A defensive, or passive investor devotes less time and work into researching investments and should expect a lower return. “In modern terms, the defensive investor would be an investor in index funds of both stocks and bonds,” Myers wrote. “In essence, they own the entire market, benefiting from the areas that perform the best without trying to predict those areas ahead of time.”