Nintendo's American stock finished seven straight trading days of declines down nearly 12 percent since March 30, amid worries about declining Japanese 3DS sales and recovery from a damaging earthquake in Japan.
The ADR stock
-- which is traded in America but represents shares in the Japanese parent company -- closed today at $30.10, its lowest point since late 2009. The stock is off nearly 22 percent since its three-month high of $38.29 on February 25, the day before the Nintendo 3DS launched in Japan.
Japan's Nikkei average is down only 5 percent since the 3DS' launch, recovering most of its value after a steep drop associated with the devastating 9.0 magnitude earthquake that struck Japan March 11.
Nintendo reported none of its employees were injured and none of its buildings damaged in that quake, though the wider Japanese electronics industry has seen shortages in its wake.
Despite record-setting first-day sales for Nintendo's new portable in the U.S. and the U.K.
, some are worried about the $250 unit's staying power in the market. The system was outsold by Sony's nearly six-year-old PSP
in Japan for the first time this week.
of the 3DS' hardware estimate a roughly $100 cost for the underlying parts in the system, which retails in the U.S. for $250.
Nintendo's ADR stock is down over 60 percent from an all time high of $76.80 in late 2007, during the height of the Wii's sales success.