Melbourne toll road company ConnectEast Group has requested a trading halt on its securities after the stock fell 4.26% earlier on Wednesday.

ConnectEast called for the halt pending an announcement about a proposal that currently "remains incomplete."

"ConnectEast is concerned that the confidentiality of the subject matter of the announcement may have been breached," it told the Australian Securities Exchange.

ConnectEast stapled securities lost three cents or 4.26% to 67.5 cents in early session trading.

ConnectEast operates the EastLink toll road in Melbourne.

EastLink, which is ConnectEast's only road, was opened to traffic on June 29 and had operated toll free until July 27.

Last month, ConnectEast told investors at its annual general meeting that it had no need to refinance debt for two years and that it had cash reserves of more than $200 million to cover shortfalls in traffic volumes.

AAP