Hewlett-Packard Co. (HP) has extended the deadline for its $11.2 billion takeover of British software company Autonomy, with analysts predicting the U.S. firm is on course to succeed, Reuters reported.

.

HP has extended the deadline for the offer to Oct. 3 after gaining acceptances from shareholders representing 41.6 percent of shares. The company requires a further 33.4 percent support from Autonomy investors to delist its target from the London Stock Exchange.

“I am very surprised that they have needed to extend it at all,” said James Crenshaw, a Standard & Poor’s equity research analyst  “I would have expected Autonomy shareholders to be all pretty much happy with the takeout price.”

Though it is rare for takeover offers to gain more than a handful of acceptances at the first closing date, some analysts said they had expected more investors to take up the offer because HP is offering a hefty 79 percent premium.

HP offered an agreed 2,550 pence per Autonomy share on Aug. 18, which it said valued the enterprise search software company’s fully diluted share capital at 7.09 billion pounds ($11.2 billion).

Analysts and bankers are skeptical that a rival offer will emerge to create competitive tension and boost the price.

“I do not think anyone else has the same urgency to buy Autonomy as HP,” Tom Gidley-Kitchin at Charles Stanley said.