KEY POINTS
  • "If you're part of this new cadre of investors, I am begging you to follow my seven new rules," CNBC's Jim Cramer said Wednesday.
  • "We are at a critical point in this market, a point where the cheapest stocks are often the best and the most expensive stocks are often the worst," the "Mad Money" host said.
  • "I want to address the retail revolution ... [and] put it in context, because sometimes revolutions fall apart," he said.

CNBC's Jim Cramer on Wednesday delivered a message of caution to retail investors who helped drive up the price of so-called meme stocks last week.

The trading activity that was sparked on Reddit ignored traditional investing logic. It triggered an unprecedented short squeeze in stocks including AMC Entertainment and GameStop that captured the attention of people in and beyond the investing community.