JPMorgan said in a research note that the combined hash rate of the 14 U.S.-listed bitcoin mining stocks tracked by the investment bank now accounts for 28.9% of the network hash rate, a record high. "The combined hash rate of the 14 U.S.-listed miners tracked has increased by approximately 70% (80 EH/s) year to date to 194 EH/s, while the network hash rate has increased by 33% and now accounts for a record approximately 28.9% of the global network hash rate," analysts Reginald Smith and Charles Pearce wrote. The bank said this is an increase of nearly 8% since the Bitcoin halving event earlier this year, reflecting the efficiency and financing advantages of some listed miners. In addition, mining stocks rose in the first two weeks of this month as Bitcoin rose, while companies in the high-performance computing (HPC) sector continued to receive interest from hyperscale enterprise transactions. (Coindesk)