Alternatives, in the CAIA/CFA sense, is the residual category left after you remove traditional long-only public equity and public fixed income: hedge funds (AL1.01), private equity and venture (PW1.02), private debt (E11.01's territory, taken private), and real assets, tangible or tangible-cash-flow-backed holdings whose value is tied to a physical or infrastructural thing rather than to a claim on a company's residual earnings. Commodities, real estate, and infrastructure are the three real-assets sub-classes this module covers. They are grouped together for four reasons, and each one deserves a caveat in the same breath it is stated, because the caveat is exactly what a sales pitch tends to omit:
- Diversification. Real assets have historically shown low-to-moderate correlation to a traditional 60/40 equity/bond portfolio, so adding them can reduce portfolio volatility for a given expected return. Caveat: the measured correlation is highly sensitive to how the asset is priced, a privately appraised asset that is marked quarterly will show artificially low correlation to a daily-priced stock market for reasons that have nothing to do with the underlying economics (the appraisal-smoothing problem, developed fully in the real estate section), and even genuinely market-priced real assets (listed REITs, exchange-traded commodities) show their correlation to equities rise sharply in a crisis, precisely when the diversification was supposed to earn its keep.
- Inflation linkage. Real assets are often pitched as a hedge against unexpected inflation, on the logic that a physical thing's price and a contracted or regulated cash flow's price level both tend to rise with the general price level. Caveat: the strength of that linkage differs enormously across the three asset classes in this module, from mechanically indexed (much infrastructure) to partially and slowly indexed (real estate, through lease resets) to a short-run price-shock hedge with a poor long-run record as a store of value (commodities, once roll costs are netted out), and treating "real assets" as a single inflation-hedge story flattens a distinction that matters enormously to how much of a hedge you are actually buying.
- Return enhancement / complexity premium. Some real-asset strategies pay a premium for tolerating structural complexity (understanding a commodity futures curve, underwriting a 30-year concession, navigating a fragmented private real-estate market) that a passive index investor in stocks and bonds does not have to master. Caveat: a complexity premium is not automatic; it must be harvested by someone who actually understands the complexity, which is the entire justification for this module existing.
- Illiquidity premium. Private (unlisted) real estate and infrastructure funds lock up capital for years, and in return have historically offered a return premium over their liquid, listed equivalents. Caveat: an illiquidity premium is only real if you can actually afford the illiquidity, a premium you cannot access without a forced sale in a downturn is not a premium, it is a trap, and this is exactly the kind of claim R10's verification discipline exists to interrogate rather than accept on the strength of a well-produced pitch deck.
Hold those four reasons and their four caveats side by side for the rest of this module; nearly everything in the module is one of them made concrete with arithmetic.