Thinkorswim appeared to be down for hundreds of users on October 23. As per Downdetector, over 200 users were facing issues with Thinkorswim at the time of writing. Many complained about the outage online.
Several websites went dark amid a mad scramble after reported vulnerabilities in a widely used programming language. Thinkorswim is a trading platform suite owned and integrated by Charles Schwab. However, it is not known if the Thinkorswim outage is linked to this issue. Downdetector noted on its page “Some services may be offline while a global PHP security issue is fixed. Check the official website or social media of the service for more information.”
It was originally founded in 1999 as an options-focused online brokerage , and has evolved into a tools for retail and institutional traders who analyze markets and execute complex strategies.
They said all users were “encouraged to update immediately. Developers of the PHP programming language released urgent new fixes on Wednesday, to rectify vulnerabilities which had been present in their software for years, but were only recenrly uncovered using AI.
Thinkorswim down: Users complain online
One person commented around 42 minutes prior to the time of writing that “ToS is down: desktop, mobile and web interface. Confirmed from multiple sources, and there’s 40+ reports here. Downdetector, which tracks internet outages, noted that most people were facing issues with the app, while some had troubles with the website and logging in. Users took to the comment section and social media to voice their complaints. One person on X complained about the outage saying “Yes. All thinkorswim platforms are down. Another added “ToS down here – can’t log into app, platform, etc. The issue appears to have started about an hour back. Can’t even load the client at this point. It just resets and asks me to log in again on multiple computers. Totally screwed on PC and MAC. They need to fire their CTO immediately. This is absolutely abysmal IT. What a f***ing bunch of amateurs,” another angrily remarked .
Yet one more person said “Cant log in , first time in yrs. “Trying to trade Asia and London and saw “reconnecting” so tried to log off and on. Fully stuck now on “Installing Updates…”.
