I am thinking about and considering what it would be like to only trade the QQQ.

Advantages:
1) you can focus on the QQQ and not worry about anything else
2) takes less time to analyze, instead of sifting through charts of many different stocks
3) less risk than trading individual stocks
4) very liquid - so when my account grows to hundreds of millions of dollars, I can continue trading the QQQ

Disadvantages:
1) higher comissions from trading more frequently
2) may miss opportunities in individual companies
3) it is different than my current system and may not work as well

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