Premium denim label True Religion ( TRLG) posted a 10% jump in first-quarter earnings, providing a shot of life to the moribund luxury market.

During the quarter, the company earned $7.6 million, or 32 cents a share, compared with $6.9 million, or 30 cents, in the year-ago period.

Sales grew 19% to $63.6 million from $53.4 million last year.

Shares of the company were up 5% to $18.67 in after-hours trading.

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