answer: #Person1# thinks the stock market is weird and #Person1# buys stocks as an investment.
documents: #Person1#: The NASDAQ gained a few points today.
  #Person2#: Does it mean anything?
  #Person1#: It's hard to say. The stock market is weird. You never know what will happen tomorrow.
  #Person2#: Why do you buy stocks, then?
  #Person1#: It's a kind of investment. If I choose a good stock and hold it long enough, I can get good returns.