The useful way to hold asset classes in your head is not by name but by what actually drives them. Two assets with different names that respond to the same force will fall together in exactly the moment you were relying on them not to.
| Asset class | You own | Main driver | Typically weak when |
|---|---|---|---|
| Stocks | A claim on company profits | Earnings and the discount rate applied to them | Rates rise sharply or growth expectations fall |
| ETFs | A basket, usually tracking an index | Whatever the basket holds, plus flows into the fund | Its underlying market is weak |
| Gold | A scarce metal, no cash flow | Real yields, the US dollar, and central bank demand | Real yields rise and the dollar strengthens |
| Crypto | A digital asset, varies by design | Liquidity conditions and risk appetite | Liquidity tightens or leverage unwinds |
An ETF deserves particular care because it is a wrapper, not an asset class. An ETF holding government bonds and an ETF holding early-stage technology shares are wildly different investments in the same legal form. Reading the holdings is the whole exercise.
Common belief
"Crypto is uncorrelated with stocks, so it diversifies my portfolio."
What is actually true
That was argued in early periods with thin data. In recent regimes Bitcoin has often behaved as a high-beta risk asset, falling with equities when liquidity tightens and falling further. Correlation is regime-dependent, and it tends to rise precisely in the stressed periods when diversification is supposed to help.
A portfolio holds a technology index ETF, three individual technology shares, and a growth-focused fund. It looks like five holdings. In a period when rates rise sharply, all five are exposed to the same force — a higher discount rate applied to distant future earnings — and they fall together. The diversification was nominal.
This is the reason VILIQ builds a flow graph rather than a list of prices. The interesting question is not what each asset did; it is which force is currently pushing on all of them, and whether the relationships that normally hold are still holding.