IAC--the Internet company that remains after the spinoff of Ticketmaster, the HSN shopping network, and two other businesses--won’t go on a buying binge with its $1.3 billion cash cushion, Chief Executive Barry Diller said.

Speaking Wednesday at the Goldman Sachs Communacopia XVII Conference in New York City, Mr. Diller acknowledged that “it’s extremely nice to have [$1.3 billion] in your pocket,” but added that the cash is unlikely to be plowed into acquisitions.

Mr. Diller pointed to moderate-size acquisitions like Lexico, owner of Dictionary.com, which closed in July for a reported $100 million as a model for IAC’s future M&A strategy.

He said Lexico’s 28 million monthly unique visitors now goes through IAC’s Ask.com search advertising system and a new rail at Dictionary.com has produced 500,000 queries for the Ask.com search engine.

Though Mr. Diller shied away from specifics on merger and acquisitions, he said IAC plans to sell its 30 percent stake in Japanese shopping network Jupiter Shop Channel and added that Japanese trading company Sumitomo might be a willing buyer. John Malone’s Liberty Global sold a similar stake in the channel to Sumitomo for $867 million as part of a larger transaction.

In August, the five units of the former IAC began trading independently as part of Mr. Diller’s plan to spin off businesses he had cobbled together through years of acquisitions.

The spinoff companies are Ticketmaster, home shopping business HSN, mortgage unit Tree.com, and time-share company Interval Leisure Group.