
The Mean Dollar Invested Age, a metric developed by the Santiment team, equates the average investment into BTC at a given point in time (
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The metric is based on the average price invested into BTC held outside of exchanges. Based on historical data, the MDIA index can be a good indicator of bull/bear phases. During accumulation periods, like 2017, the MDIA reaches very high levels. On the other hand, sharp drops in MDIA point to BTC purchased at "expensive" rates being sent back to exchanges, and such events seem to be followed by price drops.
Interesrtingly, the current MDIA is approaching the levels seen before the 2017 bull run.