Wal-Mart beat expectations in fourth quarter, with sales and profit above average analyst estimates。The company said it was winning market share, especially among households with annual revenues of more than $100,000, and that e-commerce sales were also on the rise.。Wal-Mart shares up 6 in New York trading.4%, has risen 12%, more than the S & P 500。

In addition, Walmart announced that it agreed to acquire smart TV maker Vizio Holding Corp for about $2.3 billion.。The deal will accelerate Walmart's advertising business and help it engage more with advertisers.。Walmart is expanding its non-retail businesses, which are growing faster and more profitable than core businesses.。

Wal-Mart said U.S. same-store sales, excluding fuel, rose 4 percent in the quarter ended January, beating Wall Street expectations.。Adjusted earnings per share of 1.$80, higher than analyst forecast of 1.$65, adjusted operating income up about 13 percent。Despite softer guidance on current fiscal year sales, Walmart says it feels good about the economy。

Walmart is taking steps to lower commodity prices, reduce inventory, and improve online order fulfillment, among other things, which has helped streamline store operations and increase profits.。Analysts say Walmart's low prices, store renovations and online presence will help win more market share。