Real estate brokerage Compass filed for an IPO on Monday. The 8-year-old company reported $3.7 billion in revenue last year, up 56% year-over-year, with a net loss of $270 million, down from $388 million in 2019. Compass is among a flock of real estate tech companies riding a strong U.S. housing market amid the pandemic driven by record low mortgage rates and limited supply of homes. Compass now has more than 19,000 agents across 46 U.S. markets. It estimates its total addressable market at more than $570 billion.