<p><img src="https://images.cointelegraph.com/images/528_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjUtMDEvMDE5NDZmNmEtOTJiNy03MGU5LThlYTAtYjI1OGQxNDA0MGUx.jpg" alt="Bitcoin Christmas rally to $200K or $300K possible based on ‘power law’ model"></p><p>Bitcoin’s parabolic rally could last until Christmas with a cycle top near $300,000, according to one analyst.</p>