TheStreet's Jim Cramer says the story behind why Nordstrom is going higher is that they spent a fortune on their omnichannel. He says the retailer is going to be on a roll and earnings per share in 2016 will be much better because they spent a lot to boost their technology. He tells investors that if they're going to trade, then they should at least know the right metric and in this case it's the company's growth initiatives. The upscale department store said it spent more on technology upgrades and store expansion. For the fourth quarter, the company reported earnings of $1.32 per share, down from $1.37 in the year ago period. Total revenue came in at $4.04 billion, topping the $4.01 billion analysts were expecting.