Non-COVID world already baked into stock market: analyst

"We're especially seeing that today, now that the true Coronavirus-hit companies, like cruise lines and airlines, are coming back," Kramer said.

On high-growth stocks that delivered remarkable returns for investors in 2020, Kramer says they are yesterday's heroes.

"We're not going to continue to see every cloud and software company continue to rise because it's a play on a new lifestyle."