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Diversity is welcome.
This seems really unforgivable, since it had plenty of time to both purge the old record and enter the new one. Fortunately, I just happened to still have the first receipt in my car. If you drive a BMW, Let the Bayer Beware. So they both had this same list of securities. Both brokers were getting the same list of stocks to buy and sell, and were bidding against each other.