dkamp,
funny you mention the NASDAQ stocks trading in HK. There are 7 stocks (MSFT, CSCO, INTC, SBUX, AMAT, AMGN, DELL). Timber Hill are basically the only ones making a market - typically 500-1000 up. I oversee this trading. But with little local interest they hardly trade. They trade in HK dollars and commissions are high. With the liquidity in the states and the cost so low I can't with good faith recommend trading them over here. Europe will be adding more stock futures and US stocks to their platforms thus you may have better luck over there. HK may offer int'l stock futures as well and we'll (timber hill) probably be the market maker. At least with stock futures clearing will be easier and commissions cheaper. In the end, if you are looking to play the overnight moves/gaps. The NQ's are probably the best source of liquidity at the momement. The other alternative may be instinet, IB allows instinet access starting at 3AM (EDT). But even then, not all stocks have prices and if they do the markets are usually wide.