After a glut of new listings last year, the capital market may see its first major test this year in the impending share float of the Agricultural Bank of China (ABC).

The bank plans to raise nearly 150 billion yuan in the Shanghai and Hong Kong markets as early as April this year, according to a source close to the matter.

The move has raised concerns that the hefty offering could upset the market, which is already reeling under the onslaught of a slew of year-end floats.