City Index may offer both fixed and variable spreads, depending on the market you wish to trade.
Fixed spreads don't change according to market conditions such as volatility or liquidity. Fixed spreads may either be offered for a defined period of the day, or throughout specific trading hours. Spreads may be wider in less popular and during less liquid trading hours.
For example, the UK 100 has a fixed spread of 1 point between 8-4.30pm. Outside of these hours, the spread will widen to other fixed amounts. See Indices for details.
Variable spreads may fluctuate throughout the day according to different factors such as underlying liquidity or market volatility. With variable spreads, when City Index lists a spread we will quote you the minimum spread it could be, plus an average spread for a defined historical period of time.