A spread is the difference between the ask and the bid price. For example, if the Bitcoin to US dollar is trading with an ask price of 23291.96 and a bid price of 23308.51, then the spread will be the ask minus the bid price.

23308.51 – 23291.96 = $16.55

The spread is is always calculated in the quote (second) currency of the pair being traded.

AltumBrokers calculates the Spread in Points. A point in Cryptocurrency Trading is the last decimal place of the price.

If the Spread of BTCUSD is 1655, the calculated spread will be $16.55

If the Spread of BTCETH is 14,the calculated spread will be 0.00014 ETH