Does the risk level actually change? as the nature of the product says the same.
The buy in/sell out costs/gains changes, so it may cost you less to buy a shares that a "more" likely to give you a better return but the nature of the product stays the same.
It's not like you're buying into a single company (which has a high risk level anyway) that makes x then all of a sudden they move into a riskier more profitable market, therefore the product has changed and should have a different risk rating.
The stock market prices should sort itself out when it comes ETFs/Trackers, if a company within it did move the line of business it's in the share price will reflect that and as a result the companies percentage of that ETF/Tracker.
Because for example in 2008, the market crashed, BOE dropped interest rates, the drop in interest rates pushed up bond prices. Thus having a portfolio of bonds/stocks would be decent.
However after that, with interest rates at zero, bonds cannot go up anymore, and the yield is below inflation.
If the market crashes bonds cannot gain in value anymore because they cannot cut anymore, thus the only option left is inflation which means interst rates need to go up.
So the only possibility post 2009 ish is that, bonds will either give you 1-2% yeild or, you will lose as interest rates go up. But if you factor inflation you either lose a bit, or a lot.
Bond funds now have nominal losses, but actually the real loss is higher due to inflation.
People mentioning bonds falling with stocks is a surprise, its not, it predictable with the above explanation. Obviously though i have figured this out with hindsight because i dont do bond investing at all so i dont think about it.
But seemingly those who do invest in bonds, also dont think about it, especially if you invest in pre-covid, and put risk level to 1/10 you will end up with almost entirely bonds.
This is because risk is calculated on the basis of short term fixed transactions.
i.e. I will invest X and withdraw it exactly 2 years from now.
When you say, this is an investment for my SIPP, and legally i cannot touch the money for 20 years, then the risk is flipped, and actually the nasdaq 100 is the lowest risk.
A fund of 100% government bonds is the highest risk.