LONDON, March 18, 2013 /PRNewswire/ --

With more and more people shifting to smartphones and tablets, wireless is expected to be key growth driver for the communications services industry. The increasing data usage has resulted in significant demand for high-speed Internet. For companies such as America Movil SAB de CV (NYSE: AMX), Vodafone Group Plc (NASDAQ: VOD), Sprint Nextel Corporation (NYSE: S), and NII Holdings Inc. (NASDAQ: NIHD), the key will be to continue to boost spending on upgrading their network infrastructure. On Friday, wireless communications stocks ended mostly lower as the broad market saw a pullback. StockCall professionals have completed their technical analysis on AMX, VOD, S, and NIHD and these free reports are accessible by registering at

http://www.stockcall.com/research

Shares of Mexico-based America Movil SAB de CV were among the major losers in Friday's trading session. The stock closed 3.87% lower at $18.62 on above average volume of 33.72 million, taking its losses in the last three sessions to over 8%. The wireless company's shares have now fallen more than 19% this year, compared to a gain of more than 9% for the S&P 500. The stock has seen a series of lows in the last few sessions, which is a bearish signal. This bearish trend is further confirmed by the MACD chart. Sign up for the free technical research on AMX at

http://www.StockCall.com/AMX031813.pdf

Vodafone Group Plc's shares edged lower in trading on Friday, however, the losses were limited. The stock closed 0.54% lower at $27.65 on volume of 6.96 million. Despite the pullback, Vodafone's shares have gained more than 1.20% in the last three trading sessions. The stock has outperformed the broad market this year, gaining more than 9.70%. Shares of VOD have been struggling to break through $27.75 resistance level. The stock is currently trading well above its 50-day and 200-day moving averages, which is a bullish signal. The upbeat trend is further confirmed by the stock's MACD chart. Be sure to read our latest technical research on VOD by registering at

http://www.StockCall.com/VOD031813.pdf

Shares of U.S.'s third-largest wireless carrier, Sprint Nextel Corporation also slipped in Friday's trading session. The stock closed 0.85% lower at $5.81 on above average volume of 48.82 million. Despite the pullback, Sprint Nextel's shares are currently trading close to their 52-week high of $6.04. The stock is currently facing stiff resistance at around $5.90. It has traded in a very tight range over the past couple of weeks. The stock's MACD, however, has just slipped below the signal line, which is a bearish signal. The bearish trend is further confirmed by recent volume activity. Year-to-date, the company's shares have gained nearly 2.50%, underperforming the broad market. Sign up and read the complimentary report on S at

http://www.StockCall.com/S031813.pdf

Shares of NII Holdings Inc. edged higher in Friday's session even as the broad market saw a correction. The stock finished the day 0.43% higher at $4.62 on above average volume of 7.30 million. NII Holdings' shares have fallen sharply in 2013. Year-to-date, the stock is down more than 35% even as the S&P 500 has posted gains of more than 9%. The company's shares have seen a series of lows over the last one month. The stock, however, has bottomed out at around $4.50. The free report on NIHD can be downloaded by signing up now at

http://www.StockCall.com/NIHD031813.pdf

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