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So for example if you place a order for BTC when it is in a small dip (for example some minutes), Will the usd dollar price you pay be equal to the price at the time you placed the order or when it it is actually confirmed? (when the dip is probably gone and you effectively bought bitcoin at a higher price)

What I really would like to know whether it is possible to effectively trade BTC (or other coins) on a minute to minute timescale.

Thanks for your answer, Roror

  • It is possible to trade in real-time if you use "real" exchanges, for example GDAX, Poloniex, Kraken..... However, if you use "hybrid-exchanges" that provide all-in-one solution like Blockchain, Coinbase, you will get quoted a price inclusive their service/conversion fees, and if you manage to pay them within a given time-frame you will get the BTC to that quoted price. – Chak Dec 7 '17 at 22:39
  • Read up on market orders, limit orders, stop loss orders, and so on. The exchange will do what you ask it to do. – David Schwartz Dec 16 '18 at 7:17
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Conceptually, orders arrive at the exchange and are processed one at a time. The fate of your order depends on the previous orders which are on the books when yours is processed. So what matters is the state of the market at the instant when your order "arrives" at the exchange. There will of course be some delay between the instant at which you place the order and the instant when it arrives at the exchange. The length of this delay would depend on internet latency, the speed of the exchange's computers, etc.

If you place a limit order, then the price will be whatever you wanted it to be. The order will be filled if there is a matching order already on the books at the instant of arrival; otherwise your order will be placed on the books and may or may not be filled by some later order.

If you place a market buy (/ sell) order, the price will be whatever the lowest ask (/ highest bid) is on the books at the instant of arrival. Of course, this could be a different price than what you saw when you placed the order. That's an inherent risk of market orders.

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