You can use this tool to see what your current allocations across country and sector and then compare them to a global index (e.g. FTSE All World) to see where you are under / over exposed. Then you just have to decide if you are happy with those discrepancies or not.
Just a few things to consider:
- You are very heavily skewed towards the FTSE100 / UK - lots of investors like to have a home bias so it’s fine but something to be aware of.
- You are skewed towards large cap quite a lot (FTSE 100, SP500 and Nasdaq are all large cap) - these are probably safer than smaller cap so that might be desirable
- You have no exposure to Canada, Europe, Asia pacific which are some pretty big market (~21% of the world), again that might be desirable but it’s worth being aware of.
There are some good points to consider from the community in this thread as well as a few other passive portfolios you can compare to (including mine) if you want.