Nice!
Can you also add YTD and 1 year change? And maybe 1 month instead of Month-to-Date, which I don't think would be very useful? And sort the ranges shortest to longest? :) (1 hour should be at the beginning, doesn't have to be the default)
Oh, and also allow sorting the coins by biggest gain in the given range instead of market cap :)
BTW, where do you get the data from? Straight from exchanges or do you use an API like coinmarketcap's?