How to build an investment strategy step by step

An investment strategy helps connect your decisions with goals, time horizon, risk and liquidity. The article explains how to organize your finances, allocate assets, make periodic contributions and review the portfolio.

Estrategia de inversión: cómo construirla paso a paso. Investment strategy: how to build it step by step. Stratégie d’investissement : comment la construire pas à pas. Strategia d’investimento: come costruirla passo dopo passo. Estratégia de investimento: como construí-la passo a passo. Anlagestrategie: So bauen Sie sie Schritt für Schritt auf.

Lucía Hernández

20 August 2026

7 min read

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Many financial decisions are made in isolation: a recommendation, a one-off opportunity or a market trend. However, long-term results usually depend less on getting a specific transaction right than on having a coherent system.

An investment strategy is a set of rules that defines why you invest, what capital you can allocate, how you will distribute it, what risks you will accept and when you will review the portfolio. It is not about bringing together products or techniques, but about connecting decisions with your goals and staying on course when markets change.

Step 1. Organise your financial situation

Before investing, it is worth separating the capital that can truly be allocated to the medium and long term.

The first step is to review:

Money that may be needed soon should not be exposed to high volatility or committed to illiquid assets. In addition, reducing debt with a high interest rate may make more sense than looking for new investments.

This organisation makes it possible to distinguish between the savings needed to maintain financial stability and the capital that can assume risk in search of returns.

Step 2. Define the goal and timeframe

Every strategy should answer one question: what is this money for?

Investing to supplement retirement is not the same as investing to buy a home in three years’ time. Each goal has a different timeframe, priority and margin of flexibility.

The closer the use of the money, the more important it usually is to preserve capital and maintain liquidity. A long horizon may offer more time to go through periods of decline, although it does not mean that more risk should always be assumed.

It also matters whether the goal can be postponed. Saving for an essential need requires a different approach from saving for an optional goal whose date can be changed.

Step 3. Determine how much risk you can take

Risk does not depend only on how you react when an investment loses value. It is worth analysing three dimensions:

  • Tolerance: how much discomfort losses cause you.
  • Capacity: what decline you can withstand without compromising your needs.
  • Need: how much risk you need to assume to reach the goal.

A person may emotionally tolerate a 20% decline, but not have the financial capacity to withstand it if they need to recover the money soon. The opposite can also happen: someone may have substantial wealth but feel uncomfortable with small fluctuations.

In addition, not all risk appears as a daily change in price. There is also default risk, concentration, inflation, currency risk, delay or permanent loss of capital.

Step 4. Design the asset allocation

Asset allocation consists of deciding what part of the wealth is allocated to liquidity, fixed income, equities, real estate or other investments.

This distribution determines a large part of the portfolio’s behaviour and risk. However, there is no universal combination. It will depend on the goals, timeframe, personal situation and the exposure that already exists outside the financial portfolio.

A simple portfolio can be well diversified with only a few blocks, provided they respond to different risks and sources of return. By contrast, accumulating similar products can create a false sense of diversification.

For example, several funds focused on large technology companies may share many of their positions, even if they have different names.

Step 5. Choose how to implement each block

Once the distribution has been defined, it is time to select the specific instruments. It is important to distinguish between the strategy and the product: the former indicates what exposure you are looking for; the latter determines how you obtain it.

Before investing, it is worth reviewing:

  • what assets it contains;
  • its costs and fees;
  • liquidity;
  • taxation;
  • timeframe;
  • and its specific risks.

Two products with a similar expected return may offer very different net results after costs, taxes and inflation.

Within each asset class, index-based or actively managed strategies can be used, as well as value, growth, dividend or quality approaches. These are second-level decisions: first, it should be defined how much capital corresponds to each block.

Step 6. Define contributions and rebalancing

A consistent investment plan, based on regular contributions, can help turn saving into a habit and reduce dependence on a single entry date.

This strategy does not eliminate losses or guarantee better returns, but it can support discipline and reduce the temptation to try to constantly anticipate the market.

It is also worth establishing a rebalancing rule. If one part of the portfolio rises sharply, it may end up weighing more than expected and increase the overall risk.

Rebalancing consists of returning the different blocks to their target weights. It can be done:

  • on specific dates;
  • when the deviation exceeds a limit;
  • or by using new contributions.

The frequency should take costs and taxation into account. Reviewing does not mean reacting to every piece of news, but checking that the portfolio continues to fulfil the function for which it was designed.

How to incorporate real estate into the strategy

Real estate can generate returns through interest, rents or value creation. It also tends to follow a different path from listed markets.

However, it is not necessarily stable or suitable for every portfolio. It may involve illiquidity, concentration, maintenance costs, operational risk and deviations in timelines.

In addition, before increasing exposure, it is worth considering overall wealth. A person who already owns their main residence and other properties may be more concentrated in the sector than their financial portfolio suggests.

Direct purchase is not the only route. Through real estate crowdfunding, it is possible to access projects without acquiring an entire property.

At Urbanitae, investment usually starts from 500 euros and can be structured through debt or equity transactions.

In debt projects, the interest and term are agreed in advance, although the result depends on repayment capacity and delays or defaults may occur.

In equity or capital gains projects, the investor participates in the result of the transaction. Returns are not guaranteed and depend on factors such as the income obtained, costs and the actual project timeframe.

Incorporating real estate into the portfolio requires accepting its lower liquidity and diversifying across projects, developers, locations, strategies and maturities.

Turn the strategy into written rules

A strategy is more useful when it can be summarised in a simple sheet:

  • goal;
  • timeframe;
  • initial capital;
  • regular contribution;
  • liquidity buffer;
  • target allocation;
  • acceptable loss;
  • limits by asset;
  • rebalancing rule;
  • and review frequency.

It should also indicate what circumstances would justify changing the plan: a significant change in income, a new financial need or a change of goal. A one-off market decline or the appearance of a fashionable investment should not be enough on their own.

A good plan also helps decide what not to do

An investment strategy does not eliminate uncertainty. Its function is to prevent every decision from depending on the state of the market, a news item or a passing emotion.

A good plan makes it possible to know what to buy, how much to invest, when to review and also which opportunities to reject. This consistency is more important in the long term than accumulating techniques or constantly trying to time the best moment to invest.

About the author

Lucía Hernández

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Lucía Hernández es licenciada en Periodismo y Humanidades por la Universidad Carlos III de Madrid. Con experiencia en medios digitales, marketing y comunicación, colabora con Urbanitae escribiendo sobre inversión, educación financiera y mercado inmobiliario. También puedes leerla en la revista Elle, donde cultiva otra faceta de su mirada periodística. Le interesan las historias bien contadas, ya sea en un artículo, en un libro o en una buena conversación.

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