[RndTbl] NASDAQ has bit-limit bug

Hartmut W Sager hwsager at marityme.net
Sat May 8 05:00:32 CDT 2021

Intriguing!  Of course that so-called "compact format" (in the article) is
a 32-bit unsigned integer, capped at 2^32-1.  While going to 64-bit integer
is a very clean solution (not the only one), interpreting the 32-bit
integer as having 3 decimal digits would also preserve exact one-eighths
(0.125) and result in a new cap of 10x the current cap.

Hartmut W Sager - Tel +1-204-339-8331

On Fri, 7 May 2021 at 12:34, Trevor Cordes <trevor at tecnopolis.ca> wrote:

> Kind of funny.  Computer nerds will instantly spot the (bit) reason for
> the limitation in $$ amount.
> https://www.zerohedge.com/markets/buffetts-refusal-split-berkshire-stock-creating-y2k-problem-nasdaq
> What's interesting is they are still allowing 4 "cents" digits.  I guess
> it's a holdover from the fraction days where stocks were "10 1/8".  I'm
> pretty sure no broker lets you trade in anything less than a cent these
> days.
> I wonder if their fix is to switch to 2 digit cents, or move to 64-bit
> systems and storage.  My guess is the former would be infinitely easier,
> though you may lose some historical precision if you make the change
> retroactive.
> If they go 2-digit cents, Buffett can grow to $42M a share... which should
> take a decade at least (depending on inflation levels).  :-)
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