股票价格又上涨了。

Gǔpiào jiàgé yòu shàngzhǎng le.

The stock price has risen again.

我买了一些股票来投资。

Wǒ mǎi le yīxiē gǔpiào lái tóuzī.

I bought some stocks for investment.

股票市场每天都在波动。

Gǔpiào shìchǎng měitiān dōu zài bōdòng.

The stock market fluctuates every day.