Crypto concentration and property

The rule

The reason most crypto holders eventually look at property is sound: one asset has become most of the net worth, and that is uncomfortable in a way that no amount of conviction resolves.

Buying property genuinely does reduce that. It reduces it by a smaller amount than the transaction feels like, and the gap between the felt reduction and the real one is worth a page.

The mortgage puts the risk back

Start with the arithmetic, because it is stark.

Four million in crypto, buying a two million dirham property. Paid in cash, the position becomes two million crypto and two million of property equity. Crypto weight: fifty percent. That is a real, large diversification.

Bought at seventy five percent loan to value with five hundred thousand down, the position becomes three and a half million crypto and five hundred thousand of equity. Crypto weight: eighty seven and a half percent. The same property, the same address, the same feeling of having diversified, and almost none of the effect.

The mortgage is not part of what you own. Using it means most of the crypto stayed where it was, and the part that left was replaced by a leveraged exposure to a second asset. At seventy five percent loan to value a twenty five percent price fall removes the equity entirely, which is the point made in position sizing: the risk of a levered position is measured against the equity at stake, not against the purchase price.

This is not an argument against borrowing. Borrowing to buy property is normal and often correct, and mortgage versus cash is the framework for that decision on its own terms. It is an argument against counting a mortgaged purchase as though it diversified the whole price.

Correlation is the wrong question, asked the wrong way

The instinct is to look up how crypto and property have co-moved and to be reassured by a low number. The number is not wrong; it is answering a question nobody needs the answer to.

Two assets can drift independently across ordinary quarters and still fail together in the specific conditions that ruin people. Both are long-duration. Both are priced, in part, against the cost and availability of money. Both attract speculative capital during easy conditions and lose it during tight ones. A daily correlation coefficient computed across a calm period will not tell you that, and what diversification does is about exactly this gap between measured correlation and behaviour under stress.

The more useful question is behavioural rather than statistical: do both of these become harder to sell at the same time? For crypto and Dubai property, the honest answer is that they have shared more of their good and bad conditions than a correlation table suggests, because they share an investor base and a sensitivity to liquidity.

One of the two can no longer be sold on a Sunday

Concentration is usually discussed as a weight. Half of what matters about it is optionality.

A crypto position that becomes uncomfortable can be reduced immediately, at a known price, in any size, at three in the morning. A property that becomes uncomfortable can be sold entire, over months, at a cost that transaction cost drag puts at a meaningful percentage of the price, and only if a buyer appears.

So the conversion trades one kind of discomfort for another. It removes the sleepless volatility and installs an obligation that cannot be reversed quickly. For most people that is a good trade, because the illiquidity is what stops them selling at the bottom. It is worth making deliberately rather than discovering afterwards.

The weight expires by itself

The last failure is the quietest. The calculation is done once, on the day of the purchase, and then both sides move.

Somebody who converted to a fifty percent weight and then watched the remaining crypto triple is at seventy five percent again, without having decided anything. The portfolio drifted back to the concentration they explicitly acted to escape.

That is what rebalancing bands exist for, and it is harder here than in a normal portfolio because one leg cannot be trimmed. Practically, that means the rebalancing has to happen on the liquid side, and the trigger has to be written down in advance, because the moment a rule is most needed is the moment it is least appealing to follow. Concentration limits is the same discipline at the level of a whole category.

The version of this that catches the most people is not in the portfolio at all. If the income, the holdings and the property are all downstream of the same industry and the same city, that is one bet made three times. It is the largest position most people hold and the only one they never sized, because it never felt like a decision.

The arithmetic

Where it breaks

• Measuring the new weight against the property price rather than the equity in it. A two million dirham property bought with five hundred thousand down has diversified five hundred thousand, and the mortgage has quietly reintroduced a leveraged exposure that behaves like risk rather than like ballast.
• Assuming low measured correlation means independence. Two assets can have an unremarkable correlation across ordinary weeks and still fall together in the specific conditions that matter, because both are long-duration, speculative in part, and priced against the cost and availability of money.
• Forgetting that one of the two can no longer be sold quickly. Concentration is not only about weights, it is about what can be done when a weight becomes uncomfortable. A crypto position can be reduced on a Sunday and a property cannot be reduced at all, only sold entire, over months, at a cost.
• Counting the property at purchase price forever. The weight was calculated once, on the day of purchase, and then both sides moved. A portfolio whose crypto tripled after the purchase is more concentrated than it was before it, and nobody recalculated because nothing was decided.
• Ignoring the positions that were never chosen. Employment income, a pension, and a home are positions. Someone whose salary is paid by a crypto business, who holds crypto, and who buys property in the city that business is in has made one bet three times and diversified nothing.

When to use it

Before deciding how much of a crypto holding to convert, and once a year afterwards. The weight changes on its own whenever either side moves, which means the answer expires without anyone touching it.

Sources

1. Bogleheads wiki
2. Aswath Damodaran, valuation data and teaching materials
3. Dubai Land Department, real estate data
4. Central Bank of the UAE

Last reviewed 28 August 2026. Educational research, not personal advice. Disclosure standards.