Follow
https://www.morningstar.com/news/dow-jones/2021050416782/berkshire-hathaways-stock-price-is-too-much-for-computers
How did no one catch this before it happened. This is an entirely predictable thing.
TLDR nasdaq stored stock prices as a 32 bit number (in hundredths of a cent) and berkshire hathaway's stock overflowed that number.