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No...
A Trader is someone who buys/sells stocks or commodities. A Broker is one who helps the trader in his buying/selling
There is none. Trader Joe's is privately owned.
No stock symbol... It's not a public company!
It is impossible to estimate the total number of stock traders there are in the United States. Any person who has every bought or sold stock is considered a stock trader. The Internet makes it possible for anyone to become a stock trader.