KEY POINTS
  • Several top-tier bank stocks, including Goldman Sachs, are still undervalued, CNBC's Jim Cramer says.
  • The "Mad Money" host encourages investors to buy in ahead of the inevitable rallies.
  • "We haven’t seen a moment like this" since the 1990s when it comes to the banks, Cramer says.

CNBC's Jim Cramer says the stock market's recent lift off its lows can be attributed to one key sector: the banks.

"When you look at this incredible nine-day run in the financial stocks, there's really only one way to interpret it: the banks are leading this market's charge out of the bear-den abyss," he said Wednesday on "Mad Money" after investment giant Goldman Sachs' stock posted its best trading day in 10 years.