STORY: SK Hynix shares surged on Wednesday (April 8).
Investors bought in after its fellow South Korean chipmaker Samsung forecast a big quarterly earnings jump.
It led markets to question whether SK Hynix might be on course for something similar.
Samsung on Tuesday projected its first-quarter operating profit would rise more than eight-fold.
That was well ahead of analyst estimates.
Samsung found demand for AI infrastructure stretched supply and drove chip prices higher.
Korea Investment & Securities on Wednesday raised its estimate for SK Hynix's full-year operating profit.
It now sees a 28% climb to just over $146.5 billion - more than quadruple last year's numbers.
That was due to stronger-than-expected price increases of both DRAM and NAND chips.
SK Hynix shares traded up 15% each at one point, which outperformed Samsung's more than 8% gain.
SK Hynix is due to report January-March earnings later this month.
