Investment Strategies and Styles: Building Blocks of a Portfolio

Value or growth. Active or passive. Concentrated or diversified. These usually get presented as a choice between camps, one side right and the other wrong.

They aren't camps. Each is a building block, with a job it does well and another it does poorly. Value tends to hold up when price discipline comes back into fashion and lags when it doesn't. Passive is cheap and very hard to beat over long stretches, and it offers no protection when the whole market is the problem. Concentration builds fortunes and occasionally destroys them. None of them is "the answer". They are parts.

The question worth asking is what each part contributes to the whole. That is an asset allocation question, not a question about any single strategy, and it's the one most people skip, because arguing value versus growth is more entertaining than the dull work of deciding how much of your money sits where.

I've spent twenty years building and investing in businesses, and about a decade in wealth management, on the other side of these meetings. The investors who do well rarely have a clever view on a single strategy. They have a clear view on allocation, and they build the strategies around it.

Allocation is most of the decision

The research here is old and consistent. How you divide money across asset classes — equities, bonds, property, cash, and private holdings — largely determines how a portfolio behaves over time. The manager you pick and the strategy you tilt toward matter, but they sit a long way behind the split itself.

That should change where you spend your attention. The arguments about which strategy is best matter far less than the split itself. Get the allocation right, and you can be fairly average at everything else and still end up fine. Get it wrong, and a brilliant stock-picker will not dig you out.

For a founder, the allocation question comes with a complication because you usually start with one asset that has grown into most of your net worth. More on that below.

The first job is to survive

Before return, before tax, an allocation has to keep you in the game. No position is worth a real chance of ruin, however good the odds look on paper, because you only have to be wiped out once.

This is why a portfolio built on predictions is a weak foundation. Nobody can reliably say what rates or markets do next, and the people who sound certain cannot either. It is more robust to arrange things so you do not have to be right about the future. A portfolio that holds up across several different futures beats one tuned perfectly for the single future you happen to expect. You give up the satisfying big call. In return, you stay invested long enough for the rare events that drive most returns to materialize.

A safe core and a few real bets

One robust way to structure this is plain. Most of the money sits somewhere genuinely safe and boring: cash and short bonds whose only job is to survive anything. A smaller amount goes into things with real upside asymmetry, where the worst case is losing that slice and the best case is several times it.

The trap is the comfortable middle. A portfolio that is moderately aggressive the whole way through feels sensible and is quietly the most fragile option on the table. It carries enough risk to hurt in a bad year, without a proper safe core beneath it or any real protection on top. You take on real risk and get little in return.

It is also the answer to the urge to "combine" everything into one middle-of-the-road approach. You do not average it all together. The core does the steady compounding, while the higher-conviction, higher-risk positions stay small and deliberate at the other end.

Diversification means correlation, not a long list

"Diversified" usually gets used to mean "I own a lot of things". It is not the same thing. If everything you hold falls together in a crisis, you own one bet written out thirty times.

The version worth having spreads money across things that respond differently to growth, inflation, rates, and the occasional shock. A few genuinely uncorrelated holdings cut risk far more than a hundred that move together, and you barely give up return to get there. It is the closest thing to a free lunch the market offers, and it is the opposite of what many "diversified" portfolios actually hold: the same equity risk bought in ten different wrappers.

The test is not the number of lines on a statement. It is how much would still be standing if the single biggest bet went wrong.

The founder's version of this problem

Everything above applies to anyone. The next part is sharper for people who built something.

Making money and keeping it ask for almost opposite temperaments. You get rich by concentrating and believing. You stay rich by being a little more humble and a little more frightened, and by trimming the very thing that made you. The instinct that built the company is often the one that puts the proceeds at risk.

The founding stake is also the hardest thing in the world to sell down, because it is more than a position. It is bound up with your identity, and with the proof that you were right. So people hold on to it too long and call it conviction when it is closer to attachment. Sometimes it genuinely is conviction. The job is being straight with yourself about which, and that is nearly impossible to do in the moment about your own company. That is the argument for setting a selling rule in advance rather than deciding in the heat of the moment.

There is no clean number for how fast to diversify out. The useful thing is to keep one question in front of you: how much of my future still rides on a single outcome, and if I were sitting in cash today, would I put that much back into it?

You have to be able to hold it

Most of this comes down to behavior, not cleverness. The best portfolio on a spreadsheet is worth nothing if you bail on it in the first ugly quarter. A merely decent one you actually hold through the fall will compound, and compounding is the whole game. The most expensive habit I see, by a distance, is interrupting it: selling in a panic, switching approach at the bottom, turning a paper loss into a permanent one.

Pick an allocation you can still live with when it is down 20%, because for anything heavy in equities, at some point it will be. The question "what can I actually hold through pain" rules out more bad decisions than any amount of fine-tuning.

This is worth getting help with

None of this is an argument for going it alone. If anything it's the opposite. The real value of a good adviser or planner rarely lies in picking winners. It explains how asset allocation actually works for your situation and helps you build the portfolio around it in sensible structures, with each strategy sized to the job it is there to do. Allocation is the decision that matters most, and the one most people are least equipped to make on their own. It is worth getting right with someone who does it for a living.

Where the detail lives

This is the frame. The mechanics of each block sit in their own pieces:

• Who the managers, funds, and vehicles are, and what each does with your money, in Investment Landscape.
• Why the old 60/40 split is creaking, and how bigger pools allocate now, in 60/40 Portfolio Is Dead.
• The illiquidity premium, and how direct and club deals actually work, in Private Equity for HNW.
• Property as an income and inflation block, and how to access it, in Real Estate Investing.
• Debt used on purpose rather than by accident, in Leverage and Debt.
• And the longer view on investing for a world you cannot forecast, in Investment Philosophy for Uncertain Markets.

The point

The shift in the question is what matters most. Stop hunting for the best strategy. Work out what each one is for and how much of your money it should run, so the portfolio survives if you're wrong about any single part.

Value versus growth stops mattering much once the underlying allocation is sound, and no amount of brilliance within a poor allocation will rescue it. Get the allocation right first, then let the strategies do their jobs, ideally with someone qualified helping you set it.