After a distastrous 2020 for the travel industry, many would have hoped that early 2021 would indicate some level of optimism.
Not so far, it appears, at least for the publicly listed companies in the sector that publish their quarterly results.
The traditionally upbeat first quarter for many brands (when consumers begin to consider their annual breaks later in the year) has been tempered by ongoing lockdowns in Europe and elsewhere.
The previous version of PhocusWire's dynamic revenue bar chart showed some improvement in the fourth quarter of 2020 - but revenues are mostly flat so far in 2021.
The addition of Airbnb to the data collection, following its IPO in December 2020, places it in third place behind Booking Holdings and then Expedia in first and second spots respectively.
PhocusWire first produced its visualization of digital travel company quarterly revenues going back decades in November 2019.
The chart begins in 1995.
Several companies in international markets only report earnings on a half-year basis, which means their revenue numbers on the chart only change twice a year.
Others such as Hostelworld, OnTheBeach and Yatra have yet to report.
Foreign currencies were converted into U.S dollars, using the exchange rate at the time.