Realized Cap HODL Waves provide a macro view of (1) the age of coins and (2) their relative economic weight as a proportion of the Realized Cap. In a way, it can be thought of as the USD weighted equivalent to the HODL Waves (which are BTC weighted), where the USD value of the coin is based on when the coin last moved. This provides a macro gauge on the balance between coin maturation, spending, and 'stored value' held by various group of market participants.