Hacker News new | comments | show | ask | jobs | submit login Show HN: Token Spread – Bitcoin/crypto spread tracking for arbitrage ( tokenspread.com ) 68 points by wbelk 6 hours ago | hide | past | web | 25 comments | favorite donpdonp 5 hours ago This is a nicely designed site and some good data feeds. There is a big difference between spread, and arbitrage. Critically, any attempt to track arbitage needs to watch the orderbook rather than the last-trade-price. Ironically, the bid/ask spread on the same exchange isnt part of arbitrage. The difference between the total available bids on exchange A and the total available asks on exchange B (or vice-versa), is the opportunity. I wrote and ran an arbitrage tracking site for a few years and eventually stopped because there did not seem to be viable way to take advantage of cross-exchange spreads. Sell-Move-B...