Bitcoin futures traders set a record with more than $37.7 billion in open interest, surpassing the previous record of nearly $37 billion set in March, when Bitcoin hit an all-time high of more than $73,000. The jump came a day after Bitcoin spot ETFs attracted net inflows for 18 consecutive days, also a record. The long-short ratio of BTC futures is over 1, meaning there are more positions betting on rising prices than falling prices. BTC is currently priced at around $71,340, up 0.5% in the past 24 hours. According to analysis by 10x Research, if BTC rises above $72,000, it could usher in a big rally to $83,000. Healthcare company Semler Scientific said it will buy $17 million worth of BTC and is preparing to raise $150 million to buy more Bitcoin.

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