You can liquidate your IX15 tokens directly via the Smart Contract after the IEO however the price of the tokens is determined by the underlying value of the assets in the fund.

For example if the value of the fund is 1100 USD and there are 1000 tokens in circulation then the value of the tokens would be 1.10 USD. 

If the value of the fund doubles then the fund is worth 2200 USD divided by 1000 tokens = 2.2USD per token however if the value of the fund halves then 550 USD divided by 1000 tokens = 0.55cents.

The value of the fund is determined by the value of the top 15 digital currencies. 

Each of the digital currencies will be equally balanced, that means they have equal dollar invested on the day of rebalancing.  The coins will fluctuate over the 30 days, some will go higher, others lower and some will fall out of the top 15. On the next rebalancing we sell those coins that have fallen out completely and purchase new coins that have entered the top 15.  The coins remaining are sold lower if they outperformed or purchased more coins for those that underperformed but stayed in the top 15.

See image below that explains the steps and our video that explains it in more detail: https://www.youtube.com/watch?v=uhicWwMkd-Y