Samsung Electronics said that it withdrew its bid to acquire the flash memory card maker SanDisk, citing “growing uncertainties” in SanDisk’s business.

SanDisk, maker of flash memory cards, has some 860 patents in the United States and 550 overseas. Samsung currently pays SanDisk $440 million a year to license those patents.

The memory chip maker said that it might buy a flash memory maker, SanDisk, in a deal that could reshape a struggling industry.

Stocks ended mixed Monday after weakness in the technology sector punctured some of the market’s enthusiasm over a report that suggested the economy could still be growing.