It's possible to have a margin account where you essentially borrow up to half the value of the portfolio to buy more stock. This is not a winning financial strategy for most people. If the value of your stock goes down so that you do not have a %50 margin, then you must come up with cash or else the bank gets the whole portfolio. Thus it's much different from say, a mortgage where the bank assumes the house has the same value as collateral....even if the real estate market changes.

so a couple years ago when i was 16 i purchased stocks in TESLA (TSLA) with my bank (td)

I am a very happy investor in this company and because of my student loans, i just cannot afford to invest anymore into this fantastic company that i believed in since the start!

THE THING IS i remember the the man that set up my investment account also told me something like i could invest into stocks with the banks money thinking that the stocks price will go up to a certain point. I am a bit hazy on that one and i tried googling it but cannot find anything about it. What would the term or word be on such an investment plan like this as i do not have enough money to buy more stocks at the moment until after i graduate i am interested in this service.

That's not an actual question.