There's an interesting phenomenon. An ETF primarily invested in stocks and cash has fallen 22% this year, while during the same period, stock and cash assets performed much better than it. Ironically, the overall market environment this year has been quite good, with only 5% of ETFs experiencing negative returns, yet this fund has become one of the minority. What's even more disheartening is that this product manages less than $1 million in assets, and hardly anyone owns it.

This situation is indeed rare—investing in the most basic asset classes, yet being caught in a basic asset trap. A small scale may mean that operating costs are disproportionately high, or it could simply be an unpopular niche product that no one pays attention to. It also reminds investors that when choosing ETFs, they should consider not only the investment logic but also whether there is enough market attention and scale support.