[mlerner]

I think rebalancing with Coinbase's selection of coins is pretty easy. When you have a more complex basket (for context, I work at Bitwise Investments, which runs the Bitwise HOLD10 Index), it is more difficult to decide what goes into the basket.

For example, several coins (like Neo and Ripple) have supplies that grow and are centrally controlled, but many coins have planned inflation schedules. We know that the supply of many of the large-cap coins is going to grow over the next couple of years, and that needs to be taken into consideration when valuing them.

To explain why that is important: if people buy a coin at a certain price _knowing_ that a certain amount of inflation is going to happen, that means investors think that the market cap of the coin is actually much more (think of this like Discounted Cash Flow). Restated, if people buy these coins knowing that the supply is actually going up, that means that they think that the value of the coin is actually much higher than the current market cap.

If you want to learn more about indexing methodologies for cryptocurrencies, you should check out our website: https://www.bitwiseinvestments.com/index