TAIPEI —ChipMOS Technologies shares jumped nearly 10 percent on Friday to a 52-week high, extending a sharp run in Taiwan's memory packaging and test stocks as investors bet that tighter chip supply will keep pricing and factory utilization high.

The stock closed at NT$127, up NT$11.50, or 9.96 percent, on the Taiwan Stock Exchange. It opened at NT$116, traded as low as NT$115 and finished at the session high. Volume was about 99.2 million shares, more than double the 20-day average. Thursday's close was NT$115.50. The 52-week range now runs from NT$29.55 to Friday's NT$127.

The move is the second near-10 percent gain in three sessions. ChipMOS rose 9.57 percent on Sept. 30 to NT$114.50, dipped 6.70 percent on Sept. 29, and added 0.87 percent on Thursday before Friday's breakout. Over the past year the Taipei listing is up roughly 330 percent. The U.S.-listed ADR, IMOS, has tracked the same rerating.

ChipMOS, known in Taiwan as Nan Mao, packages and tests display-driver chips and memory. That mix is why the stock has traded as a lever on two cycles at once: the older driver-IC business tied to panels, and the........

© International Business Times