I'm curious what the implications are that all these exchanges go offline whenever there is a huge spike in bitcoin. That being said, anyone care to elaborate how the price of bitcoin is determined? I mean it's easy when there is a large central bank monitoring this figure. However, how exactly does it work for bitcoin? What makes it worth the $15K value when there is no "goods" to back it up. Are there anyone here b…
- "Market Maker" - By placing an entry in the order book, which says something like: "I have up to 100 Bitcoin I'm willing to sell at $15,000.01 a piece", or "I'm willing to buy up to 100 bitcoin at 14,999.99 a piece".
- "Market Taker" - You can do this by looking at the book and saying: "I will take that deal". You can also do a "market order", saying: "I want to buy 100 BTC at market price", in which case, the exchange will match you with as many sellers as it takes to fulfill your order of 100 BTC, working from the lowest offered price on up.
The price is determined by either whatever the last trade executed at, or a weighted average of the buy side and sell side of the order book. If you hear someone talking about the spread, that is the difference between the highest buy price offered on the book, and the lowest sell price offered on the book. (2 cents in my above fictitious example).
The exchanges make their money by running the order book, matching makers and takers, and charging a small fee for the transaction. (On GDAX for example, market makers get charged no fee, market takers get charged some fraction of a %). The exchanges make money on the volume of trades going through them.
It can get a bit more complicated, but I hope that gives you an idea!