A Super Simple Crypto Arbitrage Spreadsheet for Finding Mismatched Prices
medium.com
medium.com
The explanation is in this blog post: https://steemit.com/arbitrage/@kesor/the-math-behind-cross-e...
Another critical thing that creates arbitrage across exchanges is a malfunction at some exchange. One great example is the YoBit exchange, which has about 100+ wallets permanently as “offline”. The price at YoBit might be much higher than on some other exchange, but without a wallet, you cannot move the funds across. Newbies beware!
And for god's sake, it is not because "these (NYSE and Nasdaq) markets have had decades of consolidation and mergers" rather the National Market System regulation and NBBO:
https://www.investopedia.com/terms/n/nbbo.asp
Frankly, every time I read article like these I fear for "investors" in the cryptocurrency space.
Thanks for the comment. If you would have read through the entire article, you would see fees mentioned in the "pitfalls" section.
I am glad you brought up the NBBO, as it is an extremely important regulation for newer traders to understand. However, the comment on mergers and consolidations still stands...just look at the Philly Stock Exchange: https://en.wikipedia.org/wiki/Philadelphia_Stock_Exchange
Arbitrage money is net of fees between exchanges so your ELIF showing $5 profit is kind of irresponsible giving people false information. If you are concerned about your users do mention the fees in bold letters above fold.
On your question on exchanges in US, well read this:
https://www.investopedia.com/ask/answers/08/security-market-...
And it doesn't even mention IEX:
https://en.m.wikipedia.org/wiki/IEX
So no not only two exchanges in existence.
And I mentioned NBBO because it nearly removes arbitrage opportunity not because there are only "two exchanges". But if you want to change your goalpost to focus on M&A, I digress.
Counterparty risk is incredibly difficult to price, and you're going to get adverse selection problems (eg you're more likely to get bids hit on venues that are more difficult to move btc off of).
BRTI (CME real time index) is closing in on 10k (@ 9918.33 right now), but I've heard of issues moving money at all for exchanges used to calculate the index.
I had BTC in bter when it was hacked. That more than wiped out all of the profits I had made arbitraging.
You also want to think about what you mean by arbitrage. If you can buy IBM at 95 on NYSE and sell it at BATS for 100, you might call that an arbitrage. Your main issue is sending the orders off before someone else does. The problem you don't have is credit risk. Your money on one exchange is as good as your money on another. In crypto this is not quite the case.
Thanks for the comment. I reiterated that it was not an apples-to-apples comparison for stock exchanges...but let's be honest. NYSE and Nasdaq are far and away the leaders.
Aboslutely agree on sending the orders off before someone else does. I mention that in the "pitfalls" section.
Here is a chart of exchange volumes. It's far from a two-horse race. There are structural reasons why there will be business for more than just a couple of exchanges, and it's closely linked to arbitrage players actually.
https://www.sec.gov/marketstructure/datavis/ma_exchange_trad...
The problem is getting currencies in and out of exchanges in time and paying all the fees, while still making a profit. While there are fast cryptocurrencies like Ethereum and Litecoin, most exchanges still force you to wait for something like 6 confirmations. Which takes minutes to hours. And forget about doing this with USD, it takes days to move from one exchange to another.
If you look at the exchange rates, fast pairs all have very similar exchange rates on different exchanges, because you aren't the only one doing this.