Share your insights or perspective on the financial matter presented in the input.

Cash or Bonds (UK)
The 'appropriate' amount of cash/bonds to hold will be largely a matter of opinion, but here are the general reasons why having at least some is a good idea: Cash is very liquid, and bonds are often mostly liquid. This means you can access them very quickly, without taking on losses. To get the most liquidity out of your bonds, you can do what is called 'laddering'. This means that you take out different bond amounts with different maturity dates, and periodically renew them on a schedule, so that you always have some bonds maturing, which you can access without paying an interest penalty. You can look this term up online for more details. Cash and bonds are low risk. If you have absolutely no low-risk assets, then in the event of, say, a market crash, you may have no savings to fall back on. By owning some bonds, and some equities, you are able to earn a modest return, without being too risky. However, note that some bonds are just as risky as equities - any bond which pays an abnormally high interest rate does so because the entity backing the repayment (government, company, whomever) is thought to not be guaranteed to be able to do so. The 25% figure given by your author is his opinion on the appropriate mix of cash/bonds to equities, but there are many views on the matter. Consider that any 'rule of thumb' in personal finance should be for general consideration only.