Homebuilder stocks are a buy. Now.

Homebuilders are a buy, according to a chorus of analysts.

That may seem surprising, and even counter-intuitive given slowing U.S. economic growth, but lower mortgage rates, improving affordability, and seasonal trends are all giving homebuilders a boost.

Read:It’s probably time to kiss that housing market rebound good-bye

Combined sales of new and previously-owned homes peaked in late 2017 and flat-lined for the following 18 months. New construction wasn’t making much progress, either, as reported by MarketWatch calling the top of the housing cycle in 2018.

It may now be time to revise that earlier thesis, particularly given a strong seasonal pattern in builder stock prices identified by several analysts.

“We see multiple catalysts for order growth and rising demand,” said Wedbush analyst Jay McCanless on Thursday, upgrading his price targets across the universe of builder stocks he covers.

McCanless thinks housing market conditions are improving for builders – itself a surprising notion so late in any economic cycle that’s showing increasing signs of slowing – but he also sees upside to the coming earnings season.

Separately, as MarketWatch reported several days ago, Bespoke Investment Group told clients that “housing market momentum is likely to continue,” based on metrics like mortgage applications.

Finally, analysts at Fundstrat published a research report Friday demonstrating the calendar effects that make the builders favorable right now.

The supportive conditions McCanless notes include lower mortgage rates, which are helping boost affordability. So is the slowing pace of home price gains and a resilient job market.

So far this year, builders have broken ground on more new single-family houses, which are almost all built for purchase, not rent, as shown in the chart below.