Highest traded stock volume day ever nasdaq

Anyone know what stock traded the most shares ever in one day on the nasdaq? I found this for NYSE.
https://www.reuters.com/article/citigroup-shares-idUSN0527870420090805
Has a stock ever traded >1BB shares in a day. Maybe an OTC or something?

 

I thought Oracle hit 1B shares in the 1990s and Healthier Choices Management Corp 1 Trillion. Not sure 100%, somebody here knows.

 

For the Nasdaq 100 it looks like AAPL traded over 7B shares on 9/29/2000

 

For AAPL that's because of splits (i.e. did not really happen).

It regularly happens that a stock (also RegNMS) trades > 1B shares per day...

 

Nasdaq often double counts volume. Anyway what's the point of knowing?

Win a game of Trivial Pursuit from 1990.

 

I can think of several good reasons for knowing -- Estimating max database requirements to store daily transactions; How many spaces to pad on report columns; Determining how many bits are needed for volume variables when coding, etc.

 

For one stonk on one day in one hundred fifty years of trading. If you say so.

 

what’s wrong with curiousity?

 

basically all it is. curiosity.

 

Trivial Pursuit:

Which 4 letters of the alphabet aren't assigned to a stock.

IE: A... Agilent, C... Citi, X... US Steel, F... Ford.