An official rate set by monetary officials.

Rule in which positions are closed in the order they were originally opened. Also known as FIFO.

The price at which an order was executed.

Fibonacci arcs are created by first drawing an invisible trendline between two points (usually the high and low in a given period), and then by drawing three curves that intersect this trendline at the key Fibonacci levels of 38.2%, 50% and 61.8%. Transaction decisions are made when the price of the asset crosses through these key levels.