The summary of this account rule change is this:
Companies holding BTC must:
- Measure crypto assets at fair value each reporting period
- Recognize both gains and losses in net income
- Report crypto assets separately from other intangible assets on the balance sheet
Items #1 and 2 are the most crucial. This is in contrast to the current method, in which companies only report their BTC "value" which is the value they bought it, until this sell it then its newly valued as income.
Perhaps #2 is the most important of these changes.
What this means is that if you hold 100 BTC on your books and the price of BTC moves from 100K to 200K, this means you need to report "Income of $10,000,000" for that reporting period. Such a report will then automatically mean a higher stock valuation since now "earnings per share" is increasing.
This creates a fortuitous feedback loop for companies that hold BTC.