NEW YORK ( TheStreet) -- Shares of Nokia ( NOK) fell 2.6% to $3.75 in premarket trading on Monday after Oppenheimer urged investors to approach the handset maker with caution. "We believe investors should step to the sidelines ahead of what is going to be a challenging and telling 1H13," wrote Oppenheimer analyst Ittai Kidron, in a note released on Monday. Nonetheless, Oppenheimer slightly raised its Nokia estimates, citing decent fourth-quarter demand. "Our checks point to balanced demand across all smartphone platforms (Symbian, WP7, WP8) benefiting from channel fill and strong carrier/Nokia/ Microsoft ( MSFT) marketing," wrote Kidron. The analyst also noted that Nokia's Asha products continue to gain traction in what is traditionally a strong quarter for feature phones. Groupon ( GRPN) was another loser, tumbling 1.6% to $4.61 on Monday. The daily deals site was also one of the most active premarket Nasdaq stocks on share volume of 93,738. Shares of Apple ( AAPL), which will sell start selling products on T-Mobile USA's network next year, fell 1.18% to $526.96 in premarket trading. Facebook ( FB) was off 0.75% at $27.28, although its partner Zynga ( ZNGA) climbed 1.57% to $2.59. Cisco ( CSCO), which kicks off a major new brand strategy on Monday, saw its shares creep up 0.03% to $19.34 before market open on Monday. --Written by James Rogers in New York. Follow @jamesjrogers >To submit a news tip, send an email to: firstname.lastname@example.org.