Active Investing and Passive Investing represent two opposing philosophies about how to try to grow wealth in the markets. Active investing means frequently buying and selling securities in an attempt to beat the market through research, timing, and skill, while passive investing means holding a diversified, index-tracking portfolio and accepting whatever the market delivers.
Investors compare the two because the decision affects nearly everything about how you invest: how much time you spend, how much you pay in fees, how much tax you owe, and — ultimately — how much of your return you actually keep.