Users of the ThinkorSwim (TOS) trading platform, operated by Charles Schwab, reported widespread issues on August 26, 2024. Many traders noted that the option chains for key equity index futures, including the E-mini S&P 500 (ES), Nasdaq-100 (NQ), Russell 2000 (RTY), and Dow Jones (YM), had disappeared, preventing them from entering, canceling, or replacing orders. Some users confirmed that orders placed on the CME equity index options after 6:03 AM CST were functioning correctly, but the overall experience on TOS was marred by slow chart loading and other technical difficulties. Complaints about the platform's performance were prevalent, with users expressing frustration over alerts not appearing and canceled orders still showing as active. The issues prompted some users to humorously suggest renaming TOS to