HONG KONG — Shares of Nintendo dropped sharply on Monday, following the games company’s profit warning late last week.

The stock opened some 19% lower in early trading on the Tokyo Stock Exchange before recovering somewhat to settle at Y13,050, or 11 % down, at the end of the morning session. It was the most heavily traded stock on the TSE in the early session.

After trading hours on Friday the company announced a forecast loss of Y35 billion ($336 million) for the year to end of March, compared with a small expected profit. The loss would be the company’s third successive year in the red.

The loss was blamed on failure of the company’s Wii U console to reach its sales targets.

The company said that it will hold a briefing on Jan. 30 to discuss a new business structure and turn around its sales fortunes.

Some stock traders now anticipate that the company will finally relent and allow its software — including such games as “Super Mario” — to be licensed to other platforms and become playable on devices such as tablet computers and mobile phones.