Market Order:
An order that can be executed immediately at the best available price in the market.
For example, the market order has a 20% protection point, market orders that move the price in excess of 20% (compared to the first traded price) will be automatically cancelled.
This is to prevent users from suffering losses in extreme conditions, as they may mistakenly buy their assets at extremely high prices or sell them at extremely low prices
Limit Order:
Limit order restricts the price of the order so that the order can be executed at a specific price.
Post-only Order:
A post-only order is a limit order, allowing market participants to control their provision or taking of market liquidity (i.e. it will not hit the bid or lift the offer)
Go to the bottom of EX.IO Exchange homepage and click “Trading Pair”.