Luxury home prices rose 3.2 percent year over year to an average of $1.7 million in the third quarter of 2018. This is the lowest growth rate since the fourth quarter of 2016, when prices were up 1.1 percent from a year earlier. This analysis tracks home sales in more than 1,000 cities across the country and defines a home as luxury if it is among the top 5 percent most expensive homes sold in the quarter. The average price for the bottom 95 percent of homes was $343,000, up 3.6 percent in the third quarter compared to a year earlier, but the growth rate was down from 5.1 percent in the second quarter.

“A great deal of the slowing price growth among luxury homes can be explained by the stock market, a strong indicator of luxury homebuyers’ wealth, or at least their perceived wealth,” said Redfin chief economist Daryl Fairweather. “The stock-market fluctuations that began last quarter likely caused some uncertainty among wealthy individuals, which has made luxury buyers more sensitive to price. The swings many people have been watching in their stock portfolios have only grown more frequent in recent weeks, so we expect this trend of slowing luxury home price growth to continue at least into the end of the year.”

Luxury homes went under contract after an average of 65 days on market, eight fewer days than in the third quarter of last year, and tied with the second quarter for the fastest pace on record since Redfin began tracking this metric in the first quarter of 2009. The market for non-luxury homes also sped up in the third quarter, with homes spending an average of 49 days on market, nine fewer days than last year and two fewer than in the second quarter.

“We have seen homes go under contract faster every year since 2015. Buyers are able to look at more homes more quickly in part thanks to real estate technology. For example, a potential home buyer can use Redfin’s website to go on virtual tours, or immediately book a home tour using Redfin’s book-it-now feature.”

Luxury homes sold fastest in San Jose, California, where they found buyers in an average of 19 days, followed by Ashburn, Virginia (23); Oakland, California (28); Seattle (29); and San Francisco (44). Although the luxury market in these metro areas is moving more quickly than the rest of the country, luxury homes took four to 15 days longer to sell last quarter than in the second quarter in Ashburn as well as Oakland and San Francisco, where the overall market has been slowing for months. San Jose was flat from the quarter before. Out of the fastest markets, only Seattle saw sales of luxury homes speed up since last quarter.

Cities in Florida and Nevada saw some of the nation’s largest increases in luxury home prices in the third quarter. In West Palm Beach, Florida, the average sale price for a luxury home shot up 54.5 percent over last year to $1.7 million. Luxury home prices were up 29.6 percent in Reno, Nevada, 26.0 percent in Boca Raton, Florida, and 22.5 percent in Miami.

“There are a lot of people selling average/modest multi-million dollar homes in the Bay Area and buying true luxury homes in Reno,” said Redfin agent Jaime Moore. “Buyers coming from the Bay Area find themselves with strong purchasing power and are able to easily afford luxury homes in Reno.”

Florida dominated both the list of biggest gains and the list of the biggest declines. Average luxury price numbers are inherently volatile at the city level, since a few mega-mansion sales can dramatically skew the average in a single quarter. The average price for a luxury home fell the most in Vero Beach, Florida, down 46.1 percent year over year last quarter. During the same period, prices for non-luxury homes in Vero Beach grew 2.7 percent. Prices for high-end properties also fell in St. Petersburg, Florida, (-16.8%); Fort Lauderdale, Florida, (-16.4%); Sarasota, Florida, (-8.4%); and Delray Beach, Florida (-8.3%).

For luxury sales and home listing trends, we used a price cutoff of $2 million or higher, because just taking the top 5 percent of the market would result in sale and listing volume trends that were the same as the bottom 95 percent. The figures for inventory and sales are based on a different group of homes than for prices and speed, which was the top 5 percent of homes in each city by price.

Sales of homes priced at or above $2 million were up 3.2 percent in the third quarter, the ninth consecutive quarter of sales growth, but the smallest rate of growth since early 2016.

The number of homes for sale priced at or above $2 million fell 6.0 percent year over year in the third quarter of 2018 compared to a year earlier. The decline in inventory had inched close to zero in the second quarter, but fell again in the third quarter.

Interestingly, inventory of homes priced under $2 million is slightly increasing as of the third quarter, but the luxury market is still seeing a decrease in the number of homes for sale compared to a year earlier.

Curious about the most expensive homes sold last quarter? Take a peek at the top-10 most expensive sales and live vicariously through these new luxury owners:

Visit the Redfin Data Center to find more housing market data for metro areas around the country.

Redfin tracks the most expensive five percent of homes sold in more than 1,000 U.S. cities and compares price changes to the bottom 95 percent of homes in those cities. Analysis is based on multiple-listing and county recorder sales data in markets served by Redfin. To determine luxury market winners and losers, we looked at cities with at least 45 luxury sales in the quarter and an average luxury sale price of $1 million or higher. For inventory and sales, Redfin looked at homes priced at or above $2 million that were sold in the third quarter of 2018.