Bitcoin futures annualized premium has witnessed a significant growth in recent weeks, indicating strong institutional interest.The annualized premium for purchasing spot Bitcoin ETFs and selling short CME futures has nearly doubled in the past month, rising from 6% to 11%.Bitcoin's futures open interest saw a sharp increase of 20,000 BTC in the last 24 hours, marking the biggest spike since June.Optimism is brewing as Bitcoin approaches its all-time high of $73,000, with the possibility of hitting this level in the coming days.