Hi Majid,
The assets in which you can invest in the competition are building blocks. Building blocks are Alphien’s augmented data series that account for cash payouts or other punctual discontinuities like contrat rolls.
For this Alphathon specifically, the three assets are two ETF series which are adjusted for any dividend payments and the US 10y treasury exposure is taken through futures, which are rolled and adjusted for you. You can work directly on these series; no need for extra processing. Please also note there is no need to take FX difference into consideration as this will be handled independently. For the sake of the competition, all series can be directly mixed together within the same portfolio.
Please let me know if you have other questions.
Thanks,
Hervé