Hi. Sorry I don’t understand the question.
I am assuming that you are fairly new to investing. You are welcome to ask as many questions as you want because there are plenty of people who are happy to help. I would suggest that you look at some tutorials or perhaps read a book. I haven’t looked at them myself but T212 have some video tutorials and I’d imagine they are pretty good.
I don’t understand:
I am guessing that you are looking at funds/EFT such as iShares. To take a step back and explain a little (perhaps telling you what you already know).
You have a company and you can buy shares in the company. So you could buy shares in Google or BP or HSBC… However, there are various types of investment fund and you can buy shares in the investment funds. I say “funds” but there are a whole range of different forms - funds, trusts, EFT… I don’t invest in funds very much so other people can explain more about the differences between different forms of fund but just trying to keep it simple.
So simple - you can have a firm who consider themselves experts in a particular market so they can put together a fund XYZ and they sell shares in XYZ. XYZ will have lots of investment money and they will invest in companies they like. Thus they may invest in 30 different companies. Thus if you buy a share in XYZ you indirectly get a share of all the 30 companies that XYZ has invested in. The benefit is that the managers of XYZ will be actively managing the investments so you are getting the benefit of their “expertise”.
There are funds that are focused on specific geographic areas (ie the US, far east, UK, Europe). Thus a UK fund will have a manager(s) who invests the funds money into UK companies. You can also have funds that focus on types of company - tech, small cap, growth, income…
You can also have funds (EFTs) that will track markets - eg the FTSE100 or Nasdaq… So a fund that tracks the FTSE100 will be very roughly equivalent to owning a small share in each of the 100 companies in the FTSE100.
So back to what I think you were asking. If there is a fund/EFT that owns some British American Tabacco you can buy shares in the fund and you are free to also buy shares in the individual companies as well. Another example might be that I buy a tech fund but really like Nvidia so I buy shares in the tech EFT and also buy shares in NVDA.
The advantage of funds is that in they should reduce your investment risk. You are basically spreading your investment across lots of companies either buy buying a tracker fund or an actively managed fund.
I hope this makes sense and answers your question