The Sizing Question

It is the question almost everyone asks and almost no one answers honestly, because the honest answer is unsatisfying: it depends, and the right number is probably smaller than your enthusiasm wants and larger than your fear allows. But there are real principles that turn "it depends" into something usable.

Start with the thing most crypto content avoids — how volatile this asset actually is. Bitcoin has, more than once in its history, fallen more than 80% from a peak. A conventional equity bear market — a painful, headline-making event — is typically a 20–35% drawdown. Crypto's routine corrections are the size of a stock market's worst decades. Even the most institutional crypto product available, BlackRock's Bitcoin ETF, lost nearly 10% in 2025 while leading its entire category in inflows^[4]. This is not a reason to avoid it; it is a reason to size it as what it is — a high-volatility satellite holding, not a core.

That framing — core versus satellite — is how professional allocators think about assets like this. The core of a sensible portfolio is the boring majority: broad index funds, bonds, the things that compound quietly. A satellite is a smaller, higher-risk, higher-potential sleeve sized so that if it falls 80%, your financial life is inconvenienced, not upended. For most people, a crypto allocation that fits this description is in the low single digits to perhaps low double digits of a total portfolio — sized so the position can have a catastrophic year without forcing you to sell anything you'd rather keep, and without keeping you awake.

The deeper distinction is between investing and gambling, and in crypto the line is unusually easy to cross. Gambling is taking a position whose outcome you cannot influence and whose size you have not bounded. Investing is taking a position you understand, sized to survive being wrong. The same asset can be either, depending entirely on how you hold it. A measured Bitcoin allocation, rebalanced with discipline, is an investment. The same dollar amount poured in at a euphoric top because a stranger online said it was going higher is a bet.

Which raises the question this series returns to repeatedly: how do you capture crypto's potential without the sleepless nights? Part of the answer is sizing, covered here. The other part is behavior — and that is where most people, even those who size correctly, quietly lose. Which is the subject of the next piece.