Thanks for that, not that I am afraid my personal data is passed on to exchanges but out of sheer curiosity I will reread the subscriber agreement. It just sounds odd. Like a bank would pass on my credit details and spending habits to a third party, non regulator without my expressed consent
I think I can answer this since I asked it myself. In this case, Lightspeed is both broker dealer AND data vendor (as most brokers are). Per their data vendor agreements with the various exchanges they have to contractually agree to submit to audits of how that data is being used. This includes data API use, names of users, data access policies, etc.
When you as a user create an account at Lightspeed (or other brokers who provide data), you ALSO agree to disclosures when you sign the professional/non-professional subscriber agreements and make declarations on what data you're using.
So, they're not really 3rd parties being supplied private information. They're contractual partners and everyone has agreed, in one way or another, to the disclosures beforehand.
