6 ICT Concepts to Learn First Follow us here to learn more. If you’re starting with ICT, don’t try to learn everything at once. These six concepts give you a strong foundation for understanding liquidity, price delivery and market structure. 1. Liquidity Liquidity is the pool of orders around obvious price levels. * Buy-Side Liquidity (BSL): Above highs * Sell-Side Liquidity (SSL): Below lows * Equal highs/lows, previous highs/lows and swing points can all become liquidity targets.