Stock Market Today's Movers: LUV, COST, TSLA

<p>Dow Jones today finished higher along with the S&amp;P 500 Index or SPX, Nasdaq-100, and Russell 2000. Overall, major indices finished the week higher thanks to Friday's rally. Next, Jenny Horne weighs in on Southwest Airlines (LUV) seeing cancellations costing up to $825M. Also, the Costco (COST) stock price jumped after the December net sales rose 7% to $23.8B. Finally, Tesla (TSLA) is cutting the electric vehicle prices in China. </p>