<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjItMTAvM2RlZWNjNGQtMmE3Ny00ZTlmLTkwNGEtOThhOGJjNzQwOGM4LmpwZw==.jpg"></p><p>Bitcoin-denominated futures open interest hits 660,000 BTC despite volatility remaining comparatively flat.</p>