That is a question asked just today on the Journal of Nuclear Physics. A poster identifying himself as “Achilles” asked:
“Believing firmly in E-cat, and wanting to bet on his discovery, considered objectively attractive to invest in the stock market price of nickel?”
“Our consumption of Ni is irrelevant respect the world nickel production.”
And in an earlier post he also emphasized that:
“Our applications have not environmental impact and the Ni we consume in a plant like that is a drop in a lake respect the world yearly production of nickel.”
So, it is probably not worth the investment to buy futures in nickel (strictly related to the development of various E-Cat devices that is), unless you’re willing to gamble that the ignorance of the general public will drive the prices up when the E-Cat becomes general knowledge.
Buy cheap and early, and sell high. If you’re a gambler.