a big swing like this can have many reasons.
- a bug in the system that shows a false price on the charts
- a very small market with thin orderbook that a medium buy order caused such a rise (for example someone bought 0.1
BTC worth of it and it went to the moon!)
in this case, FunFair was added to bittrex on that date! the starting order was probably set on 0.0023
BTC and someone (probably the same person who set it there) bought it and the system saved that as the price. but as you can see the price of that day dropped down to 0.00000821
BTC.
in other words a fake order caused the fake 10x (a lot more though) rise you saw.
set the chart to 1 day and see for yourself:
https://bittrex.com/Market/Index?MarketName=BTC-FUN