CFDs are a leverage product and can involve a significant risk of loss. Trading CFDs may not be suitable for all, therefore you should ensure that you understand the risks involved and take into account your individual circumstances.
Trader's Glossary

What is Period?

In trading a period is a standardised unit of time used in the monitoring of an asset. On a candlestick chart each candlestick refers to one period, which, depending on the time frame being observed by the trader, could refer to 1 minute, 5 minutes, 15 minutes, 30 minutes, 1 hour, 4 hours, 1 day, 1 week and 1 month respectively. When a moving average is calculated it takes the period data of the time frame being charted. So a 26 period simple moving average at a chart duration of 1 hour is the closing prices from 26 hours of trading activity added together and divided by 26. A 26 period moving average charted at the 1 minute duration will take the sum of the closing prices from 26 minutes of trading activity and divide this number by 26.