What AIM of S&P500 real price index indicates as the March end of year % cash used to identify the % stock weighting, which we multiply by 0.8 so as to leave at least 20% not in stock .. and having identified the % stock to align to at the start of year, the rest is split 50/50 between cash (10 year Treasury) and gold.
The last three columns show the total nominal and real gains made from having set/held that for the year, along with the nominal gain achieved by all-stock (Total Stock Market) as a comparison.
Swapping out Total Stock Market for 'stock' to hold small cap value instead (perhaps VISVX) and setting weightings to the broad AIM indicated average since 1972 ... resulted in a 11.2% annualised (7.1% annualised real) compared to 10.3% for all-stock. Worst (calendar) year -6.5% (compared to -37% for all-stock).