J.C. Penney (JCP) has postponed liquidation sales and store closure dates for the 138 stores it intends to close by the end of this year, spokeswoman Daphne Avila told  CNBC

"Ever since the company announced its store closure list, those stores have seen better-than-expected sales and traffic," Avila said.

It's "prudent to continue selling through our spring and summer merchandise at the current promotional levels and begin our liquidation sale a month later than originally planned," she continued.

The liquidation is now slated to begin May 22, instead of April 17. The new closure date of July 31 is roughly six weeks later than J.C. Penney originally intended.

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