Success attracts attention in any industry. No broker can Force you to disclose anything unless they suspect illegal activity. Many use multiple accounts to hide how their strategy works from what I have read. How successful is that "first hand" guy of yours? I thought brokers aren't even allowed to trade and are monitored.
Aside from how absurd this thread is... why the hell would a broker ever need to stalk a customer to figure out their strategy? If a broker was reeeeeealy interested in one of their customer's trades, they could easily just mirror the customer's trades -- duh.
Dude, you are so FOS. Why call you? Just piggyback all of your orders. You'd never hear a peep other than the broker lowering your commish.
Right - you come home to find you broker is eating you food & riffling your through you house looking for your trading secrets. This is either caused by taking high doses of amphetamines (Cocaine/Crach Meth/Ice, Adderal, Ritalin, Dexedrine)..... Or a degenerative mental health crisis, the symptoms sound like: Illusions of Grandeur, Histrionic, Paranoid, Narcissism, Borderline.
I tell you what...If Dan Culp was stalking me, that would mean I was doing something pretty damned right, and I would be financially stable without a care in the world. Unfortunately *dreamy cloud-thought-bubble burst*, that does not happen in the real world. I'd give him a beer though if he came to the Cape and wanted to see where Dawson's Creek took place.