[cbhl]

I'm under the impression that the IFRS (international accounting standard that replaces GAAP) changes this: equity instruments need to be measured at fair value, even if they have unrealized gains or losses.

https://www.iasplus.com/en/standards/ifrs/ifrs9

If I recall correctly, this prevents shenanigans where you over-represent the book value of assets that have lost value.

[Jorge1o1]

New GAAP Rules also mean you have to report unrealized capital gains (as of last year I think)

[tim333]

I'm not totally up on this but in the most recent Berkshire letter Buffett was saying they changed that for listed investments but not unlisted.