> Wyden’s annual billionaire tax, known in accounting circles as mark-to-market Is that the tax in question? https://www.finance.senate.gov/chairmans-news/wyde

> Wyden’s annual billionaire tax, known in accounting circles as mark-to-market Is that the tax in question? https://www.finance.senate.gov/chairmans-news/wyden-bill-ensures-wealthy-investors-pay-fair-share-in-taxes https://www.finance.senate.gov/chairmans-news/wyden-bill-ens... "Modernization of derivatives tax act of 2021". This is the only one that appears to mention "mark-to-market". It seems to apply to derivatives only.