In the past year, both Bitcoin and Ethereum have reached historic lows in their active supply turnover. Compared to previous periods, the current turnover rate for Bitcoin is only 30.12%, whereas it was 59% between March 2017 and 2018. As for Ethereum, the current supply turnover is only 39.15%, while it was 86% between July 2016 and 2017.
For Bitcoin, reaching a historic low in active supply turnover typically occurs before a block reward halving. The next anticipated Bitcoin halving is expected to take place on April 24, next year, which is 155 days away from now.