I'm interested in looking at a live chart of the bitcoin prices from different exchanges. I trade on Bitmex and I am wanting to compare the bitcoin prices against the other exchanges to see the correlation between them. This could be very useful in knowing when to buy/sell. Ive google the hell out of but cant find what Im looking for.
I would recommend using 3 services for this. All of which provide completely real time bitcoin pricing. Bitcoincharts.com, bitcoinwisdom, and cryptocompare. Bitcoinwisdom is the most well known but they have a limited range of exchanges that you are able to choose from, bitcoincharts has most of the exchanges, and even foreign exchanges are included in there. Cryptocompare has a lot too but only USD.
Up to your personal preference but cryptocompare has the best interface out of these three imo.
Just a reminder though that arbitrage usually doesn't work out with BTC/fiat pairs because of volatility and high tx fees. Don't attempt to trade too much, you might end up losing out instead.