American Eagle’s stock is rising due to celebrity endorsements and strong summer sales. Despite fluctuations, the company has seen progress with its Aerie label, UBS reports. Analysts are unsure if this growth will last. Shares have jumped 38%, reaching over $18 from below $10 in July. Aerie’s sales rose 3%, while American Eagle’s fell 3%. UBS believes the rally is trustworthy, pointing to Aerie’s success. Executives credit new customers from recent collaborations for record-breaking sales. However, analysts caution about inconsistent results and competition from other brands targeting teens.

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