<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjMtMDMvNzY5ZjA4MzQtMDExMC00OGFhLWEyMDktNzFkNGU3YTkxNjgyLmpwZw==.jpg"></p><p>An unprecedented number of BTC margin longs recently closed at Bitfinex, leaving analysts searching for explanations. </p>