Standardized fund sales institutions and fund management companies must have this risk level and assessment, otherwise they are not formal institutions, which should be noted. The risk grade of fund products is R 1-R5, and the personal risk assessment is C 1-C5. Investor suitability requires that C 1 investors can only buy R 1 products, C2 investors can buy R 1-R2 products, C3 investors can buy R 1-R3 products, C4 investors can buy R 1-R4 products, and C5 investors can buy all products. I personally evaluated C3 in Ding Xin Huijin APP. When I buy R4 products, I will be warned that "the risk level of the products you buy has exceeded your tolerance. Are you sure you want to continue buying? " I hope my answer is useful to you.