Hello: I am a new trader. I have developed an ATS which, in paper trading, is showing decent profits. My questions are: (1) If I execute my entire strategy with one broker, is there a possibility that the broker copy my strategy (given that they have access to all my transactions)? (2) Are there mechanisms/regulations that prevent brokers from copying strategies (front-ending, or reconstruction the strategy based on transactions)? (3) Can the same happen in a prop house (if a trader is successful, others copy her/his strategy by reconstructing the transactions)? (4) Am I being paranoid? These questions came to me after I read about LTCM in a book by Roger Lowenstien where LTCM used different clearing houses/brokers to 'prevent' them from copying LTCMâs strategies. I donât know if this is the correct forum for this question; if it is not, I apologize for posting it here. Thanks, -MadSpeculator.