"Buy me 1000 shares. " said the client.
The next day the stock was at $2. The client called the broker and said, "You were right, give me 5000 more shares. "
The next day the client looked in the paper and the stock was at $4.
The client ran to the phone and called the broker, "Get me 10,000 more shares said the client. "
"Great! " said the broker.
The next day the client looked in the paper and the stock was at $9.
Seeing what a great profit he had in just a few days, the client ran to the phone and told the broker, "Sell all my shares! "
"To whom? You were the only one buying that stock. "