Sample Trade Idea

Does anyone have an"outline" for how to construct a sample trade idea memo prior to an interview? I have been asked to prepare (and write up) a trade idea as part of the pre-interview process. The trade idea write up needs to include: Trade Structure (including quantities bought and sold at what prices) Expected Return Potential Risks Expected Duration of the Trade I have an investment idea, but am unsure how to structure the deliverable. Any help regarding format/length/level of assumption detail/etc. would be much appreciated. Thanks