Other interests: Poker, volleyball, badminton, hiking
If space allows, I would try and elaborate on these. EG. Volleyball - Finished second place in local tournament, Hiking - Climbed X Mountain. Gives recruiters something more to talk about at Interview/Shows excellence at all levels.
For your experience at the Prop Trading firm and the IB Spring Week, I would perhaps reconsider the format of your dates. It is not a major issue, but from what I hear, symmetry is an important principle in resume writing.
So "Aug 2014 - Sep 2014" and "Apr 2013- Apr 2013". Also it leaves no ambiguity over when you started or finished.