may 8 reuters  shares of crypto currency and blockchainrelated companies fell in premarket trading on monday after binance halted its bitcoin withdrawals for several hours due to heavy volumes and rising processing fees the halts pushed bitcoin  the worlds biggest cryptocurrency down 2 to a oneweek low of 27900 crypto exchange coinbase inc coino fell 4 while blockchainfarm operator bitfarms ltd dropped 43 crypto miners including riot platforms rioto  marathon digital marao and hut 8 mining hutto declined between 46 and 72 tracking lower bitcoin prices binance the worlds largest crypto exchange shut bitcoin withdrawals for an hour late on sunday and for about three hours on monday saying there was a glut of pending transactions because it hadnt offered socalled miners a high enough reward to log the trades on the blockchain the company said its set fees did not anticipate the recent surge in bitcoinnetwork gas fees  the payments made to crypto miners whose computing power processes transactions on the blockchain to prevent a similar recurrence  our fees have been adjusted binance had said in march the company suspended deposits and withdrawals citing tech issues