I didn't understand the market resolution. October hasn't ended, and according to the link in the market description, Apple remains the company with the highest market cap. Since it's a link in the description, it suggests that this will be the criterion for definition, not other possible criteria. Thank you!

@Brierbr but what did the link say at ~ 10 am ET today?

10 am apple price 231.97
10am Nvidia price 142.8

Apple market cap 3.522/231.48*231.97=3.529
Nvidia market cap 3.469/142.42*142.8=3.502
So not at 10am

but try 9:30
Apple market cap 3.522/231.48*229.80=3.496
Nvidia market cap 3.469/142.42*140.93=3.457

try 9.35
Apple market cap 3.522/231.48*231.17=3.517
Nvidia market cap 3.469/142.42*142.39=3.493

So yes I am beginning to suspect it only happened with premarket prices and the resolution source does not update for those prices.

Sorry the link says 10:03 PDT, noy 10:03 ET. I still cant find a 5 min time stock price that does it but it may have briefly happened.

@ChristopherRandles I'm pretty sure it didn't happen at any time, I was glued to it all day refreshing like an idiot. The Reuters article uses a different source (LSEG):

@deagol I think I eventually found it did happen:

12pm ET
Apple market cap 3.522/231.48*232.02=3.522
Nvidia market cap 3.469/142.42*143.72=3.524

@ChristopherRandles Oh I'm sure it did happen, just never got reported by the source in description. I know I saw it there down to within $3b and kept refreshing but the source didn't update the prices for a couple minutes while I saw they did cross in real-time price sources.

Lost it in the final weeks!

2%