IB resume - Any tips/critics?

Looks pretty good to me. Only point I'd suggest that you change would be the Swimming section under 'Interests'. Don't have to go into elaborate detail about every single medal/prize you've won, just highlight one. You might want to add another hobby there to fill up the space.

I agree with the above post. Content is good, I would try to include more details relating to your listed positions. They all seem very vague and high-level. let's see some details.

Also, third bullet under IB Analyst, "searched target and prepared an M&A opportunitites book for an diversified business group" change the second "an" to "a"

Aside form that all looks good to me