[Info-vax] Off-topic: NASDAQ

[Hans Bachner]

Arne Vajhøj schrieb am 08.05.2021 um 03:45:
> On 5/7/2021 9:07 PM, abrsvc wrote:
>> On Friday, 7 May 2021 at 16:20:16 UTC-4, Arne Vajhøj wrote:
>>> Is NASDAQ still using NonStop?
>>>
>>> Their IT got in the news today:
>>>
>>> https://www.msn.com/en-us/money/news/warren-buffett-broke-nasdaq-system-is-unable-to-record-high-berkshire-hathaway-share-price/ar-BB1gqX4w 
>>>
> 
>> [snip]
> 
> <quote>
> This is explained because its algorithm saves stock prices as a 32-bit 
> number, which takes up less memory and makes the software more efficient.
> 
> In this format, the highest possible number is 2 ^ 32 -1, or 
> 4,294,967,295, according to Gizmondo . But since Nasdaq records prices 
> to four decimal places, the largest figure it can store is the one quoted.
> </quote>
> 
> There are plenty of solutions. Even a 64 bit integer would have done it.

I assume the core NASDAQ application was written before 64-bit integers 
were commonly around.

Beyond that, a price of more than 400k$ per share probably was deemed 
insane, as it still is today - except for a single investor.

Hans.