Imax 3-month Nasdaq chartImax 3-month Nasdaq chart Shares of Toronto-based Imax Corp. lost much of their early gains Friday after the company said there were no corporate developments to report, casting doubt on rumours that Sony Corp. was interested in acquiring the large-screen theatre company.

Britain's Daily Mail newspaper reported late Thursday that Sony could offer $40 US a share for the chain. The Daily Mail, citing unidentified entertainment industry sources, said Walt Disney Co. might also be interested in acquiring Imax.

Imax released a statement Friday saying it was "not aware of any corporate developments" that would explain the sudden interest in its stock.

"The company's policy is not to comment on rumours or speculation, and accordingly does not intend to comment further," it said.

The Nasdaq-listed shares of Imax ended the trading day at $28.07 US, up $1.21 US in heavy trading, Earlier in the day, the shares surged to a two-year high of $32.30 US.

The shares were trading at $3.45 US just two years ago — representing a stunning 1,000 per cent rise since then. An Imax theatre in Vienna.An Imax theatre in Vienna. (Ronald Zak/Associated Press)

3D craze adds to bottom line

Imax makes both large-screen and 3D projection systems for theatres. It also makes Imax camera systems for movie studios.

Imax has benefited as ticket sales of 3D movies soared this year, thanks to such hits as Avatar, Inception, Harry Potter and the Deathly Hallows: Part 1, Toy Story 3, and most recently, Tron: Legacy.

About a dozen 3D features are scheduled for 2011 release.

The theatre company is finally reporting profits, after several years of losses. Imax recently reported third-quarter earnings and revenues that exceeded analysts' expectations.

It also said it was planning to ramp up the size of its theatre network, especially in China.

In 2006, Imax put itself up for sale, but it abandoned the effort when no buyers or merger partners appeared.

Imax operates 470 big-screen theatres in 45 countries.