Fitch Ratings has placed an A long-term issuer default rating, among other ratings, on BOC International Holdings, according to a Monday release.

The outlook is stable, reflecting that of the company's parent, Bank of China (HKG:3988).

The ratings reflects Fitch's view that the company, which is Bank of China's primary investment banking arm, would receive extraordinary support from its parent if needed.

The company's operations are closely integrated with the parent's, enhancing the group's competitiveness through a range of financial services including stock brokerage and asset management, the rating agency said.

Although Hong Kong's capital market faces volatility, the investment banker's earnings have demonstrated stability compared to peers, Fitch said.

The company has an adequate franchise, but it is also sensitive to capital market fluctuations and reliant on wholesale funding, according to Fitch.