The South Korean stock market has become a “gambling den,” claimed the leader of the largest opposition party, while accusing President Lee Jae-myung of causing the problem.

The comments from People Power Party leader Jang Dong-hyuk came amid criticism of the government for greenlighting leveraged single-stock exchange-traded funds as chipmaker stocks boom on the benchmark index.

Jang's remarks highlight concerns over the impact of speculative trading on the stock market and the role of government policies in exacerbating the situation.