There seems to be no stopping the bitcoin freight train. That’s driving the cost of holding leveraged bullish bets in perpetual futures skywards, creating an attractive arbitrage opportunity for non-directional traders. Early Tuesday, bitcoin (BTC) rose nearly to $57,000, the highest since late 2021, taking the year-to-date gain to 32%, CoinDesk data show. The CoinDesk 20 index, a broader market gauge, traded nearly 6% higher. The annualized funding rate in bitcoin perpetual futures listed on Binance surpassed 100% for the first time in at least a year, according to data source Velo Data and CoinGlass. Funding rates on Bybit and Deribit rose to 95% and 56%, respectively.