Due to the COVID effect, Omnicom’s worldwide revenue in the fourth quarter of 2020 decreased by 9.3% to $3,757.0 million from $4,141.2 million in the fourth quarter of 2019
The company's worldwide revenue in the third quarter of 2020 decreased by 11.5% to $3,206.5 million from $3,623.8 million in the third quarter of 2019 due to effects of COVID-19