KEY POINTS
  • CNBC's Jim Cramer added electric vehicles and housing to his list of the hot investment themes he's tracking in 2021.
  • "Be ready for more stringent environmental regulations that push people into electronic vehicles," he said on "Mad Money" after Wednesday's close.
  • "There are at least 10 million undocumented immigrants who will soon be able to come out of the shadows and ask for credit to buy a home and that will be amazing for the homebuilders," he said.

Joe Biden signed more than a dozen executive orders after taking the presidential oath of office Wednesday, undoing some actions taken by his predecessor over the last four years and prompting CNBC's Jim Cramer to dream up two new market themes for 2021.

The new investment ideas involve electric vehicles and housing and are an appendix to 10 investment themes he expects Wall Street to follow that he introduced at the beginning of the month.