Securities. Check out Tech. Wafer fab is on a boom cycle with legroom to spare.
Applied Materials (AMAT)
LAM Research (LRCX)
And contract manufacturing and engineering firm Ultra Clean Technology (UCTT) is on a real tear with strong upside predicted in their dominant market (wafer fab) out through 2022.
Good article on UCT at seekingalpha dated March 23rd.
The thing to keep an eye out for with water fab tech is whether they rely heavily on China or Taiwan.
I made good money off Texas Instruments.