Well, that's a really risky investment considering that bitcoin is a volatile investment especially using pension as a capital for the investment.
This is a shitpost that I'm replying to, but you're right that it's risky. However, I just took a look at the stocks in question (RIOT and MARA), and it looks like they've been performing pretty well since their inception. And I thank OP for linking to the article and mentioning those stocks in his post, because I had no idea those two companies even existed and put them on my watchlist. Investing in either one of them would be a great way to get some "mining exposure" without actually having to invest, run, and maintain all the equipment necessary to mine bitcoin yourself.
Looks like Marathon Digital Holdings is out of Las Vegas, NV but mines in North Dakota--smart, because I can only imagine how much cooling they'd need if the mining was being done in Las Vegas. North Dakota, on the other hand, is known for its frigid temperatures.
I have to say, I'm also kind of surprised that a pension fund would buy stocks like these, but if they're administering 401k's (and I don't know that they are), some participants may want high risk/high return investments. In any case, this is pretty cool!
Exactly my biggest question. If pension funds that are supposed to be the safest are investing into stocks like these it's must be crazy, that participants are still holding it. But Actually, the total investment made by them in these shares is less than even 0.25% of their total AUM which means, even if these companies go bankrupt it still won't be a big loss to the fund in total. A 0.25% stake can be easily hedged too, so it's really not a big risk.
Secondly, I went through the Investor presentation of both the companies, apparently, both of them are expecting their future growths from primarily just one hope, that renewable energy sources will increase in the future, making power cheaper and mining more environment friendly.
What I feel is that this fund wanted to buy bitcoin but couldn't do it so ended up buying these stocks because they pretty much replicate the bitcoin price movement.