Correct me please if I am wrong:
The Jiwasraya, Asabri, and Bumiputra cases were serious corruption scandals, but they involved state-owned insurance entities rather than typical publicly listed operating companies. These events point to governance weaknesses in specific institutions, not to the entire Indonesian equity market. Comparable corporate scandals have also occurred in developed markets, so this risk is not unique to Indonesia. In practice, the highest risks are concentrated in small-cap stocks, maybe also politically connected firms, and speculative trading. Large Indonesian blue-chip companies generally have long track records, reputable auditors, and broad institutional ownership. Issues such as the BCA case are often cited without sufficient historical context, particularly the Asian Financial Crisis.
I would not agree with the statement that the stock market in Indonesia is not trustworthy. This conclusion is too general. In my view, major blue-chip companies are relatively safe from large-scale scandals, and classic pump-and-dump schemes are unlikely in these stocks. Small-cap stocks, however, should be approached with caution unless one has detailed company-specific knowledge. Diversification and long-term, index-based strategies can further reduce these risks for retail investors.