Although we don't believe in timing the market or panicking over daily movements, we do like to keep an eye on market changes -- just in case they're material to our investing thesis.

With earnings season starting last week, and the major banks scheduled this week to show investors how they performed in the fourth quarter, the major indexes are down. As of 1 p.m. EST, the Dow Jones Industrial Average (DJINDICES:^DJI) is down 105 points, or 0.64%, while the the S&P 500 is off by 0.67%  and the Nasdaq is down by 0.64%.

The Dow's banking stocks are lower, while credit card companies are mixed. Shares of American Express (NYSE:AXP) are up 0.52%, while Visa (NYSE:V) is higher by 0.33%. These moves come as the card hacking that hit Target last year is now known to have spread to other retailers. Over the weekend Neiman Marcus reported that it had a similar threat around the time Target was attacked. Experts believe that other retailers will report similar incidents in the coming months once they figure out they also have been targeted.

Outside the Dow, shares of the popular do-it-yourself soda maker SodaStream (NASDAQ:SODA) are down more than 20% today. Another big loser is lululemon athletica (NASDAQ:LULU), which has lost more than 15%. The declines come after management from each company cut their guidance for the coming quarterly report. Lululemon's CFO said that traffic and sales trends have dropped "meaningfully," which prompted an analyst from Buckingham Research Group to say that it looks like we are at the beginning of lululemon's problems, not the end, which was followed by a recommendation to aggressively reduce your position in the company.  

SodaStream management apologizing for failing to meet profits targets. The company reported preliminary results for the fourth quarter, with sales coming in at $562 million, compared to the forecast of $567 million and Wall Street's expectation of $567.2 million. But net income was where the big problem was, coming in at $41.5 million -- 23% lower than the forecast of $54 million.  

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