Despite the political shifts triggered by the emergence of two new parties led by former prime minister Alexis Tsipras and railway safety activist Maria Karystianou, a substantial share of voters remains in the so-called “gray zone” of polling, according to the latest Pulse survey for Skai.

The gray zone was measured at 13.5%, consisting of 12% undecided voters and 1.5% who said they would abstain or cast blank or invalid ballots. The figure is down from 17.5% in the same company’s survey in early May, indicating that some voters moved after the formal launch of the new parties.

Pulse CEO Giorgos Arapoglou said the voters who shifted were mainly those who had previously indicated support for an unspecified “other” party before the two new parties were officially announced. Support for “other” parties fell from 11% in May to 2.5% in June.

Political parties are closely examining the profile of voters in the gray zone because their eventual choices could significantly affect the election outcome.

Younger voters are overrepresented, with people aged 17-34 and 35-49 accounting for more than two-thirds of the group. Women also make up two-thirds of the gray zone. About one-third are former New Democracy voters, while the remaining voters are divided between supporters of other parties and citizens with limited previous electoral participation.