I just successfully transferred from ZECCO to Fidelity - my account had MMTE and several others in it. It went through just fine...mostly...what I was not told is Fidelity even accepted Zecco's fees of $50 closing and another $20 fee as a negative balance to my account. In the process of this I sent a check to Zecco via Priority Mail...so there is still a little stumbling to go through in the process but my zecco account is closed and my fidelity account is open with my full shares in it.