Long-term holders of ether, the currency of the Ethereum blockchain, appear to be holding on tighter than ever before. 

According to data from The Block, the active supply of ether, or the supply that has been moved from one wallet to another within certain time periods, is currently at a historical low point for periods of one year or longer. The active supply over 30- and 90-days is also near all-time lows, having fallen over half from their peaks. 

While the supply of ether active within one year has declined over the past twelve months by about 9%, the supply of active bitcoin, after also hitting a record low, staged a recovery to end the period with a gain of around 1% in one-year active supply. Bitcoin's recovery greatly reduced the large gap that once existed in …