(Bloomberg) -- The end of crypto winter has been heralded by rising token prices and the long-awaited approval of Bitcoin exchange-traded funds. But a key segment of the digital-asset universe has lagged behind, despite previously being one of the sector’s hottest corners.Most Read from BloombergApple to Shutter 121-Person San Diego AI Team in ReorganizationBiden Says US Doesn’t Support Taiwan Independence After VoteUS Economy Set for Another Cash Boost If Congress Backs Tax DealTaiwan Elects US