After a banner year in 2013 for big tech stocks, 2014 has seen a lot of the biggest names in this space fall significantly. On Tuesday's Investor Beat, host Chris Hill and Motley Fool analysts Jason Moser and Bryan White take a look at Apple and Twitter ahead of earnings, now that a new earnings season has kicked off.

Jason discusses Apple over the past couple of years, and how this once high-flying market darling has seen a lot of stagnation recently, and decline in investor interest. While CEO Tim Cook has said repeatedly that the company has a lot of really interesting products in the pipeline, Jason hasn't seen true innovation from the company in a while. Bryan meanwhile talks Twitter, which has fallen 40% from a recent high.

Then, the guys look at four stocks making moves on Tuesday's market. Whole Foods Market stock rose today after UBS raised its price target on the stock by 13%. Bank of Internet came bouncing back today after a rough start to the week, when a presentation at the recent Value Investing Congress made the case for shorting the online bank's stock. Nike is on the rise after falling 10% recently, after the company got an analyst upgrade. And Baidu is up today, on reports that the company's online travel firm is in discussions with Ctrip.com about a possible merger.

And finally, Jason and Bryan each discuss one stock they'll be keeping a close eye on this week, as earnings season begins. Jason will be looking ahead to when Family Dollar reports, noting that while these dollar-store companies seemed interesting during the recession, as the economy continues to improve, they are finding competition tougher and tougher, and margins thinner and thinner. Meanwhile, Bryan says he'll be keeping an ear out for news about National Oilwell Varco, to hear when the company will finally announce the official spin-off of its distribution segment.