Commentary Socially responsible funds have gained a lot of attention in recent years but millions of Americans still own stocks of companies that are tied to genocidal regimes and have no idea how to spot them in their investment portfolios. Fund management firms don’t provide enough transparency to their customers about their holdings, according to human rights advocates, therefore most investors don’t know whether their portfolios are free of companies that substantially contribute to genocide or crimes against humanity. This has increasingly become an issue for investors, especially holding Chinese securities via passively managed exchange-traded funds. The Trump administration in January declared the Chinese regime’s treatment of Uyghurs and other ethnic Muslim minorities in the far western Xinjiang region a genocide, a position endorsed by the Biden administration. Several countries’ legislatures have also followed suit, including Canada, the Netherlands, and the UK. The U.S. government has also placed sanctions on Chinese officials and entities over …