As with all stock prices, the prices from the constituent stocks and Therefore the value of the index itself are affected from the performance from the respective companies as well as macroeconomic factors. The rate will change since the blockchain's average block time generation changes due to network hashrate. https://financefeeds.com/10-best-free-bitcoin-and-dogecoin-cloud-mining-platforms-offering-the-best-investment-opportunities-in-2025-earn-passive-income/