SANTA MONICA, Calif. — After five straight years of market-share gains, the SUV segment may be poised for a slowdown, according to a new analysis from Edmunds.

While incentive spending overall is up 23% so far in 2017 compared to 2016, incentives on SUVs are up as much as 47%. And despite these attractive offers and relatively strong demand, SUVs are now starting to linger longer in the showroom. Between January and May of 2017, an SUV sat for an average of 61 days on the dealer lot before it was sold, compared to 56 days for the same time period in 2016.

“For the last few years, SUVs almost seemed to sell themselves. But as the market starts to level off, automakers are having to work a little harder and make the deals a little bit sweeter to hit their sales targets,” said Jessica Caldwell, Edmunds’ executive director of industry analysis. “The silver lining is that SUV demand isn’t completely hitting the wall, but even this hot segment isn’t immune to the dip the entire market is experiencing this year.”

Even though the auto sales are softening, Edmunds expects that strong economic conditions and enticing deals will be enough to rally sales in the back half of the year. The firm's analysts maintain their sales forecast of 17.2 million vehicles for 2017, representing a 2% decline from 2016’s record high and the fourth-best auto sales year in U.S. history.

Edmunds forecasts that 1,479,042 new cars and trucks will be sold in the U.S. in June for an estimated seasonally adjusted annual rate (SAAR) of 16.6 million. This reflects a 2.3% decrease in sales from May 2017 and a 2.3% decrease from June 2016.

“While six straight months of sales declines sounds troubling, June is sandwiched between two major holiday sales events, which makes it a bit of a gloomy month historically,” Caldwell said. “Car shoppers are savvy enough to know automakers push the deals on holiday weekends and are willing to hold off on buying until they know they’re getting a hot bargain.”