(Reuters) - Credit card issuer American Express Co AXP.N reported a higher-than-expected quarterly profit that highlighted the health of the U.S. consumer even as fears mount that a manufacturing-led weakness could spread to the broader economy.

FILE PHOTO: Credit cards of American Express are photographed in this illustration picture March 17, 2016. REUTERS/Kai Pfaffenbach/Illustration/File Photo

U.S. retail sales fell for the first time in seven months in September, adding to concerns after data showed a moderation in job growth and services sector activity in the last month.

New York-based AmEx, for long the preferred choice of affluent Americans for credit cards, however, quelled investor concerns with its ninth straight quarter of foreign exchange adjusted revenue growth of at least 8%.

“The trends we saw in the business this quarter continue to be consistent with an economy that continues to grow, albeit at a more modest pace than last year,” Chief Executive Officer Steve Squeri said.

U.S. big banks’ quarterly results also showed that American consumers are helping to prop up the economy, even as recession fears have led businesses to pull back on spending and borrowing.

“We see a long runway to sustain this performance. In the (fourth quarter), we expect revenue growth to continue with the strong levels we have seen,” Chief Financial Officer Jeffrey Campbell told analysts on a post-earnings conference call.

AmEx reaffirmed its 2019 adjusted earnings per share forecast range of $7.85 to $8.35 and said it expects revenue growth of between 8% and 10% in the fourth quarter.

The company, whose largest shareholder is Warren Buffett's Berkshire Hathaway Inc BRKa.N, has ramped up reward programs on its cards and struck partnership deals with a number of firms to counter competition from JPMorgan Chase & Co's JPM.N Sapphire Reserve and Citigroup Inc's C.N Prestige Card.

AmEx said foreign exchange adjusted proprietary card member spending rose 7% in the third quarter, led by strong consumer growth in both the United States and international markets.

Net income rose to $1.76 billion, or $2.08 per share, in the quarter ended Sept. 30, from $1.65 billion, or $1.88 per share, a year earlier, the company said.

Analysts had expected a profit of $2.03 per share, according to IBES data from Refinitiv.

The company beat profit estimates for the seventh time in the last nine quarters, according to Refinitiv data.

Shares in AmEx, however, were 1.3% lower as investors were disappointed that the company did not raise its guidance.

“I did not hear anything particularly worrisome on the conference call. However, the headline number was a 5% beat, but the company did not raise its annual guidance,” Stephen Biggar, director of financial institutions research at Argus Research, told Reuters.