iShares MSCI World Small Cap UCITS ETF

In most top EuroFolio portfolios, IUSN appears as a 5-15% equity tilt alongside broader global large-cap ETFs such as IWDA, VWCE, SXR8, XDWD, and emerging market funds like IS3N, EMIM, and IS3R. Gold ETFs (IGLD, GOLD, 4GLD) and, less often, bonds (VAGF, EUNA) are also common companions, while a few portfolios add commodities or Bitcoin. The diversification role is clearly to close the small-cap gap: IUSN introduces exposure to riskier, higher-growth segments while the larger weights in US/global equities and gold or bonds absorb volatility. Portfolios with IUSN around 10% tend to post Sharpe ratios between 1.1 and 1.3, with annual returns from 12% to 18%, while very high 20% allocations, as in Golden Butterfly, keep drawdown moderate but lower the Sharpe to roughly 0.9.

EuroFolio members use IUSN as a fixed satellite weight, rarely deviation from a narrow band: the most frequent allocations are exactly 10% (Basic portfolio + Gold 10%, Pension plan 5, alternatives) and 5% (Rente neu, Weird). The same creator, user-kvsytt, keeps a constant 10% IUSN whether gold is 20% or 10%, indicating a systematic small-cap tilting strategy rather than a reactive one. Even diverse masters like Perfecta III, with 15% IUSN, and the volatile thomas 1, at only 2%, respect the need for small-cap exposure, but never as the dominant holding. This suggests the community views IUSN as a diversifier that can lift return potential without creating disproportionate risk, integrating it into equity-first, buy-and-hold structures that rebalance annually.