pyad wrote:Incidentally I've seen income reserves characterised very misleadingly as "derisking" (but only around here and previously on TMF, not in the real investment world). In fact it's nothing of the sort, the risks to income remain the same whether you reserve some or not.
There may be a misunderstanding here.
As used by me, the term derisking refers to the proportion of dividend income received which can be safely spent, compatible with at least preserving the income's purchasing power (adjusted for RPI) from year to year
regardless of companies' cuts or freezes. It is like investment trusts' revenue reserving, which has permitted some to maintain or increase dividends for half a century without fail.
Whether one holds back some of the inevitably erratic inflow rests on how important it is to one's finances that a HYP should never falter in supplying such purchasing power- whether it is a luxury or a necessity.
If such a reserve is needed, my tests of HYPs with lives of a decade or longer found that a safe average is to reserve 10-15% pa of the raw inflow. For HYP1 it would have been c. 11% over 18 years; for my FTSE 100 portfolio, 17% over seven years.
Normally this safety-margin percentage would shrink over time, because dividends outpace inflation. This also permits the withdrawal rate to be increased without seriously or protractedly reducing the income reserve.
Derisking HYP1 by my method would have made it yield an average 5.6% pa+RPI on the original £75,000 invested, with a rather full reserve of 19 months' current income after the latest Persimmon surge. (ITs' experience suggests 12 months suffices for safety.)
The 'LuniHYP100' has yielded 5.3%+RPI pa with 14 months now in reserve. HYP1 has seen a more volatile income flow from more concentrated sources than my effort; but HYP1 is more than twice as old, so who knows how mine will evolve?