Jim Cramer Says Fitbit Needs to Provide More Clarity

Jim Cramer answered viewers' Twitter questions on investing in Alcoa (AA), HCA Holdings (HCA), Citigroup (C), American Airlines (AAL) Monday from the floor of the New York Stock Exchange. Cramer's first question was about why investors follow the Dow Industrial average anymore, as opposed to looking at the S&P or Nasdaq. Cramer said you can look at any index you want, but also pointed out that the S&P's trading at a higher valuation than the Dow. He also said investors don't have faith in last week's rally, and given the volatility, they shouldn't. One viewer asked if Alcoa was a value trap or a great value, and Cramer responded that it's a good company that's fallen 40 percent. 'It's typical of what I'm saying. It's in a total bear market as if nothing good has happened, and many good things have happened,' said Cramer. Another viewer asked for Cramer's take on HCA Holdings and he responded that it's a stock that makes sense. Cramer was asked about Citigroup and responded that all the money center banks are in free fall, including Morgan Stanley (MS), which is owned by Action Alerts PLUS, the portfolio he manages. Send your Twitter questions to @jimcramer, use #CramerQ.