Amer Sports Inc. shares fell after one of its key divisions posted the slowest sales growth on record. Sales of the group’s Technical Apparel unit — which houses outerwear brand Arc’teryx — rose 25% over the second quarter, meeting analysts’ estimates. Growth has been steadily declining, and is projected to fall further, according to a Tuesday statement.

Sales from existing locations — so-called omni-comp sales, or revenue generated from owned retail stores and e-commerce sites open at least 13 months — were the main drag on the segment’s performance, registering 15% revenue growth over the quarter, below the 19% Wall Street expected.

The Finnish sporting goods conglomerate remains upbeat about the future and raised its full-year outlook for a second time this year. Revenue is seen up a

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