Is there a website or application which compares price differences across exchanges in real time?
For example 2 weeks ago we saw BCD hundreds of dollars higher on Bittrex or Kucoin (not sure which exchange it was) than it was on Binance leading to a massive increase in price over a day or so on Binance. Could have easily made some quick bucks if you were one of the first to realise.
So does anyone know of anything like this?
This is indeed an arbitrage way of trading which you are making money out of those spreads on coins between exchanges but these kind of scenarios do only see on less chances because most of the times exchanges do only have small spread but there are really times which it exceeds and giving out the opportunity to arbitrage but you should really be fast since these chances can really give you money if you done it right.