​

​

As of December 31, 

​

  ​ ​ ​

2024

  ​ ​ ​

2025

​

​

RMB

​

RMB

  ​ ​ ​

US$

Debt securities:

​

​

​

​

  ​

Wealth management products, government bonds, or products issued by banks or security/trust companies

178,821,757

117,501,734

​

16,802,524

Equity securities:

​

​

​

Marketable equity securities

939,725,698

761,723,058

​

108,924,949

Short-term investments

1,118,547,455

879,224,792

​

125,727,473