Shake ShackThe Omicron version of the Omicron led to labor shortages, forcing the restaurant chain to close earlier than usual. It also caused a drop in quarterly revenue, which sent its shares down by 5% during extended trading.

The benefits of the Covid-19 Delta wave was short-lived by Shake Shack, as the Omicron waves that followed soon dissuaded customers and damaged the recovery of urban-centric restaurants.

According to IBES data from Refinitiv, Shake Shack stated that it expected total revenue to be $196 to $201.4 Million for its first quarter. This compares to estimates of $210.9 millions.

The February same-store sales have increased by 13% compared to a year ago. Comparatively, sales increased by 20.8% during the fourth quarter that ended on Dec. 29.

New York-based Chain pre-announced its quarterly results before an ICR conference.