No TRIN, TICK, or other statistics pseudo-symbols. IB does not attempt to be a quote service, and generally provides quotes for traded products only. There are some exceptions, like providing indexes on which you can trade derivative products, like NDX, SPX, and INDU. NYSE composite is NYA. See http://www.interactivebrokers.com/html/retailAccount/products.html and click on the second column to see lists of symbols for each exchange.
