Investment firm Temasek Holdings has increased its stake in China's JD.com by 19.84 percent, according to a latest regulatory filing with the Securities Exchange Commission (SEC).

According to its latest quarterly filings with the SEC in the United States, Temasek raised its stake in the consumer services company from 0.54 percent to nearly 0.64 percent. The institutional investor bought 1.21 million shares as JD.com's stock plunged by 10.26 percent and the stock markets rebounded.

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In the first quarter of 2016, Temasek already owned 7.31 million shares from JD.com, up from 6.10 million at the end of the previous quarter.

Temasek Holdings Private Ltd. has been heavily investing in JD.com. It appears to be bullish on the $29.27 billion market cap company, according to Press Telegraph.

JD.com, on the other hand, has witnessed a declining trend, reporting a 36 percent drop this year, wiping out nearly $16 billion in market value, Asia One reported.

Meanwhile, based on the SEC filings, Temasek has also invested on Chinese e-commerce giant Alibaba.

Temasek said during its annual review on Thursday that it is looking at long-term growth potential in China amid the economic slowdown.  The company reported a nine percent drop in its portfolio value, its first in seven years.

"In general, we see a more volatile market with a more challenging environment going forward," Lee Theng Kiat, executive director, and CEO of Temasek International. "Meanwhile, we are quite comfortable with the resilience of our portfolio." 

TagsTemasek, JD.com, Alibaba, SEC