Can I run ThinkorSwim on multiple Windows computers?

scott69

Active member
Is it possible to log-in to TOS from multiple (or at least two) systems? Several older posts on different sites said either TDA wouldn't allow it, or real time quotes were denied, or it caused problems. Any experiences with this? TIA
 

tradegeek

Active member
2019 Donor
I'm logged into three devices right now. I have also launched two instances of TOS from the same device before with no problems. In fact, it may even perform better that way due to the limitations of TOS to use multiple cores.
 

MerryDay

Administrative
Staff member
Staff
VIP
Lifetime
I run two instances of TOS on the desktop and another on the laptop. They all are linked up. Works well if you have the resources.
I have way too many detached charts, watchlists, etc.. And will occasionally get a "slow performance" pop-up notice. Not often enough for me to change my ways :)
 

rad14733

Well-known member
VIP
I always have three systems up and running 24/7... I've also run multiple instances on a single system as well... In fact I'm running two instances on my laptop right now, one for regular trading and one for OnDemand because it's quirky if you have multiple chart windows running and I always have at least 6 - 8 detached windows open for trading...
 

MMM325

New member
I apologies in advance for the stupid question, but how do you go about running more than 1 instance? I run windows 10 and I looked online and all I found was that if you hold shift + left click on the tos icon (on desktop) it should open up another instance of tos however it doesn't? I run multiple "detached" charts on multiple monitors and it's starting to get really slow. Any help with a step-by-step instructions on how to run multiple instances of tos will be greatly aprecciated. Thanks in advanced!
 

MerryDay

Administrative
Staff member
Staff
VIP
Lifetime
Installing Multiple Instances of ThinkOrSwim (Windows10).
The TOS application must be installed twice in two different directories.
Create two shortcuts and execute each one.

I keep several of my charts, watchlists, scanner on one instance and my main charts, watchlist, detached position statement, and active trader in another. The 2nd instance would not run when I maxed out the memory setups in the sign-in boxes even though I have 32gb of ram. I had to play w/ the ram settings in the sign-in boxes to optimize;
I save different workspace setups for each instance that I swap out depending if it is a bear or bull day and on what strategies I am setting up for.

Supposedly, the rumor is that TOS does not take advantage of dual-core processors therefore multiple instances can possibly improve performance. It did improve my lag but didn't totally solve; especially in the first few minutes after the bell.
HTH
 
Last edited:

rad14733

Well-known member
VIP
Supposedly, the rumor is that TOS does not take advantage of dual-core processors therefore multiple instances can possibly improve performance.

Correct... TOS will only use one processor regardless of how powerful your CPU happens to be... However, if you were to have an Intel i7 processor, for example, you could run several instances of TOS and perform different tasks with each instance... The only downside is that every instance will be using its own bandwidth to keep everything updated... For this reason I would suggest keeping Charts on just one instance or perhaps two and then have Watchlists or Scans running on another and then Active Trader on yet another...

I just recently switched my trading setup which consists of two monitors on one PC and and All-In-One PC, totaling three screens, so that the All-In-One is my Active Trader PC... This should reduce lag on the system I am actively in trades on, leaving the dual monitor PC for monitoring potential trades and research only... It is my hope that this scenario will increase the speed of my trade entries and exits...
 

Jtopaz

Member
TOS allow open multiple instance in different computer at same time.
These are what I find (correct me if I am wrong) and questions hope someone can answer.
1. What is max number of TOS can at same time?
2. All instance have real-time data. Trading & Charting seems normal.
3. Saved conditional order only works on the computer you create (other computer use the saved order cannot triggered). I am not sure alert have same problem.
4. Chart script alert message log only appear in the computer with chart.
5. Saved thinkscript, chart can use in different instance.

Thanks
 
Last edited:

rad14733

Well-known member
VIP
We already have active topics going on this subject... Perhaps @BenTen can merge this one with an ongoing topic... No need further fragmenting the forums...

@Jtopaz There are a few misunderstandings in your punch-list... Messages will trigger on ALL machines with a specific TDA account open... All custom code is stored on the servers, not just an individual PC... Conditional orders are stored on the TDA servers, not just your PC...

Again, most if not all of this has been discussed in existing topics... 💡
 

Jtopaz

Member
@rad14733 Thank replying.
Messages will trigger on ALL machines with a specific TDA account open
Chart alert message only show in the instance running that chart. Other instance won't display.
All custom code is stored on the servers, not just an individual PC
Yes. But sometimes after you update the code in one instance. Other instance need to relogin to see the changes.
Conditional orders are stored on the TDA servers, not just your PC...
Running conditional orders work fine. However, saved conditional order just work on the instance you create it. Other instance use the saved conditional order will not be triggered.

Multiple instance is a very good feature. However, I find it have some undocumented precautions. I just want to write a precaution list for those who want to use multiple instances(or switch account in different computer). Please feel free to leave me message so I can add more to the list.
 

rad14733

Well-known member
VIP
@Jtopaz Yes, if you make changes on one system you need to logout and login again on all machines so they can read changes saved to the server database by other machines or instances on the same machine... TOS does not dynamically update when changes are made by other machines or instances... That is why I try to get all changes made in the evening so I can exit and restart TOS on my three systems so changes are in effect on all of them...
 

Jtopaz

Member
Is there any way to check how many instances are opened?
Can I force close any instances remotely?
 

timing

Member
Installing Multiple Instances of ThinkOrSwim (Windows10).
The TOS application must be installed twice in two different directories.
Create two shortcuts and execute each one.

I keep several of my charts, watchlists, scanner on one instance and my main charts, watchlist, detached position statement, and active trader in another. The 2nd instance would not run when I maxed out the memory setups in the sign-in boxes even though I have 32gb of ram. I had to play w/ the ram settings in the sign-in boxes to optimize;
I save different workspace setups for each instance that I swap out depending if it is a bear or bull day and on what strategies I am setting up for.

Supposedly, the rumor is that TOS does not take advantage of dual-core processors therefore multiple instances can possibly improve performance. It did improve my lag but didn't totally solve; especially in the first few minutes after the bell.
HTH


Is there any setting for this to work out?
I installed TOS on two Windows 10 computers. I would like to show different stock chart on each computer. But, when I change the stock chart on one computer, the chart on the other computer will be changed automatically to the same stock symbol.

* update *
It is figured out: remove the link between all chart windows.
 
Last edited:

chrislid33

New member
Not certain if this is discussed anywhere else as the search I ran did not reveal any other conversation on this topic.

The way to run as many "expressions" as you want is to install multiple instances of the Thinkorswim platform and run them simultaneously.

In my setup I have one instance dedicated to charts alone while 4 or 5 others are running unique versions of custom watchlists with multiple custom columns.

Of course you will adjust the number of columns by the size of watchlist or scan you are working on.

Simply download Thinkorswim as many times as you wish (alter the name for each on installation). Set the memory accordingly for each install and you are good to go. I simply rename each shortcut on my desktop to remind me which watchlist (or lists) that instance contains.

I forgot to mention that the user will be limited by the amount of memory installed on their computer. But even lower memory levels should still allow multiple installs.
Are you still able to do this today? Have multiple instances downloaded and running to get around the 1,100 limitation?
 

MerryDay

Administrative
Staff member
Staff
VIP
Lifetime
Thanks. Where in the process do you name the download another name so it’s unique? When I download and begin the installation it just installs and never gives me the chance to name the file….
No they do not have 'unique' names. They just need to be installed in separate directories. After I set up the shortcuts, I rename the shortcuts with unique names
tsY3LPn.png

Read more here:
https://usethinkscript.com/threads/can-i-run-thinkorswim-on-multiple-windows-computers.4120/
 

chrislid33

New member
No they do not have 'unique' names. They just need to be installed in separate directories. After I set up the shortcuts, I rename the shortcuts with unique names
tsY3LPn.png

Read more here:
https://usethinkscript.com/threads/can-i-run-thinkorswim-on-multiple-windows-computers.4120/
Thank you. I read the link but didn’t see specific steps on how to install on a different directory. When you say directory do you mean a location other than the C: drive? Or do you mean another folder outside the program files and then thinkorswim folder structure?
 

MerryDay

Administrative
Staff member
Staff
VIP
Lifetime
Thank you. I read the link but didn’t see specific steps on how to install on a different directory. When you say directory do you mean a location other than the C: drive? Or do you mean another folder outside the program files and then thinkorswim folder structure?
Doesn't matter. It will prompt you where you want to install.
At the moment, mine happen to be:
C:\Users\Work\Downloads\Stocks\ToS2\
C:\Program Files\ToS3
D:\Root\Work\ToS
 

Similar threads

The Market Trading Game Changer

Join 2,500+ subscribers inside the useThinkScript VIP Membership Club
  • Exclusive indicators
  • Proven strategies & setups
  • Private Discord community
  • ‘Buy The Dip’ signal alerts
  • Exclusive members-only content
  • Add-ons and resources
  • 1 full year of unlimited support

Frequently Asked Questions

What is useThinkScript?

useThinkScript is the #1 community of stock market investors using indicators and other tools to power their trading strategies. Traders of all skill levels use our forums to learn about scripting and indicators, help each other, and discover new ways to gain an edge in the markets.

How do I get started?

We get it. Our forum can be intimidating, if not overwhelming. With thousands of topics, tens of thousands of posts, our community has created an incredibly deep knowledge base for stock traders. No one can ever exhaust every resource provided on our site.

If you are new, or just looking for guidance, here are some helpful links to get you started.

What are the benefits of VIP Membership?
VIP members get exclusive access to these proven and tested premium indicators: Buy the Dip, Advanced Market Moves 2.0, Take Profit, and Volatility Trading Range. In addition, VIP members get access to over 50 VIP-only custom indicators, add-ons, and strategies, private VIP-only forums, private Discord channel to discuss trades and strategies in real-time, customer support, trade alerts, and much more. Learn all about VIP membership here.
How can I access the premium indicators?
To access the premium indicators, which are plug and play ready, sign up for VIP membership here.
Top