The U.S. home rental firm had on Tuesday set a price range for its IPO to sell shares at $44 and $50 apiece.

Airbnb could communicate the upwardly revised price range to investors in a public filing on Monday, the source added, requesting anonymity as the plans are private.

At the upper end of the new range, Airbnb would sell $3.1 billion in stock and have a fully diluted valuation, which includes securities such as options and restricted stock units, of $41.8 billion.

This is well above the $18 billion Airbnb was worth in an April private fundraising round in the early weeks of the COVID-19 pandemic in the United States, and above the $31 billion in its last pre-COVID-19 fundraising in 2017.

Airbnb's stock market debut, slated for Dec. 10 on Nasdaq, will be one of the largest and most anticipated U.S. IPOs of 2020, which has already been a bumper year for flotations.

Record label Warner Music Group, data analytics firm Palantir Technologies and data warehouse company Snowflake Inc have all gone public in the past few months.

Food delivery startup DoorDash Inc on Friday also raised its IPO target price range.

News of the planned IPO price increase was first reported by the Wall Street Journal.

(Reporting by Joshua Franklin in Miami; editing by Diane Craft)

By Joshua Franklin