What was their primary treasury reserve asset before the switch to Bitcoin? Unless I'm missing something, I don't see that mentioned anywhere in the article. I

What was their primary treasury reserve asset before the switch to Bitcoin? Unless I'm missing something, I don't see that mentioned anywhere in the article. I find it hard to believe a company would go from something ultra-stable like T-Bills to Bitcoin... so I have to imagine they already had something on the more volatile side...