1. Fixed an issue where the number of shares held could exceed the number of shares in circulation.
2. Added distinguishing indicators for short-selling positions and regular positions.
3. Added a batch order submission feature.
4. Improved the frozen funds release mechanism for short selling. Funds are now released based on the corresponding security instead of being released only after all positions are closed.
5. Added 5-day, 10-day, 20-day, 30-day, and 60-day gain rankings.