In a sentence ending with a bold or italicised word, does the period need to be bold/italicised too?

Maybe this will be considered a bit of a nitpicking argument, but I constantly find myself asking: In a paragraph where the last word is bold or italicised, should I make the period at the end bold or italicised too.

For example, which of the following is preferrable?

Today I met a lot of interesting people.

Today I met a lot of interesting people.

What would design best practices recommend? Of course at small sizes it’s hard to find a difference, but as size increases it catches the eye more and more and then I’m not sure anymore which one makes for the most appropriate choice.