<p><img src="https://images.cointelegraph.com/images/528_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjUtMDYvMDE5NzQ2OTctYzc4OS03NGI2LWFjYzgtZjkzYjE2YjU0Mjg4.jpg" alt="Arca unloads Circle shares after scathing IPO letter"></p><p>Arca's chief investment officer, Jeff Dorman, previously said the investment company would stop doing business with Circle.</p>