<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjQtMTAvMDE5MjkwNDItOWI2Ny03NjQ4LWEyMzItMzU0MDA0MGVlOGIw.jpg"></p><p>Bitcoin open interest is rising and bulls are eyeing new all-time highs above $75,000 as "Uptober" begins to take shape. </p>