The stock prices went up.
→   주가가 급등했어요.

[예문]
A:How was the stock market yesterday?
어제 주식시장어땠어요?

B:The stock prices went up.
 주가가 급등했어요.

A:Did you make a profit?
 이익이 많이났나요?

B:My stock went up a little.
 제주식은 조금만 올랐어요.