Shares of NII Holdings (NIHD) are trading lower on the session by 1.08%, at $6.41. The stock has been under pressure for the past year, pushing ever lower off of the $40.00 level.

One trader is buying upside calls on the name today, in size. A short while ago the December $8.00 call was purchased 9,951 times, on or near the offer, for $0.18-0.20. With open interest of just 1,174 contracts, this is clearly new positioning.

Overall call volume is now running at 5x normal volume with 10,042 contracts traded.

30-day implied volatility is up 3.9% today to 66.92%, while 10-day implied volatility is registering 76.10%.

NII Holdings, Inc. is a holding company for the operations of Nextel Communications, Inc. in selected international markets.