Just got this from TD Waterhouse re: PBOF. I was originally told I'd have them 8/10.
"Due to the fact that MESU and PBOF trade in physical certificates and not electronic or book entry format, this exchange will take sometime. Currently TD Ameritrade is awaiting delivery of the certificate containing the shares you had purchased. Once received, it will be sent to the transfer agent to be re-registered to TD Ameritrade for benefit of your account. At this time the exchange would occur and once the new certificate was received the shares would post to your account. Because we are unsure if the delivering broker has had the shares re-registered to their name yet, we must expect 2 to 4 weeks for delivery.
If you have any questions and wish to contact us via e-mail, please log into your account and send your inquiry using the "E-mail Us" link, which can be found in the navigation bar at the left side of any page within your account. Select the Reorganization & Dividend Inquiry Form.
Sincerely,
Cody K.
Apex Reorganization and Safekeeping, TD AMERITRADE Division of TD AMERITRADE, Inc."