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Lesson 1 of 4 10–15% of the exam

What ethics is, and why professions have a code of ethics

Ethics is the study of moral principles: what is good, right and fair. Ethical conduct balances your own interests with the consequences of your actions for others (stakeholders). A code of ethics communicates a community's shared values; standards of conduct spell out the minimum behavior required of its members.

4 min cram, 20 min full read. Based on the 2027 CFA® Program Level I curriculum, Ethical and Professional Standards, Learning Module 1. Also part of the 2026 curriculum, so it applies to the November 2026 exam too.

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On the exam

  • Explain ethics
  • Describe the role of a code of ethics in defining a profession

Explain what ethics is and describe the role of a code of ethics in defining a profession. Expect a definition item, or "what does adopting a code of ethics achieve?", with the trap that a code guarantees good behavior.

How deeply to learn each part
Know the idea
Understand it in general. It frames other topics, but you will not calculate with it.
Use it
Understand it well enough to solve a question with it. Recognize when it applies.
Memorize
Learn it by heart. The exam will not give it to you.

You know this one. The full lesson is folded away. The takeaways, formulas and checkpoint below are your quick refresher, and the checkpoint is a fair test of whether you still do.

You tested strong here. The full lesson is folded away. The takeaways, formulas and checkpoint below are your quick refresher, and the checkpoint is a fair test of whether you still know it.

Cram mode: the one-screen version of this lesson. Switch to Full for the explanations, worked examples and interactives.

What is ethics?

Know the idea

Ethics is the study of moral principles: beliefs about what is good, acceptable or required, and what is bad or forbidden. The ethical principles most communities share are honesty, transparency, fairness, diligence and respect for the rights of others.

Ethical conduct is behavior that follows those principles and balances your self-interest against the consequences of what you do, both direct and indirect, for other people. Telling a client the truth about a risk is ethical: it matches what society expects, and it helps the client decide well.

Who counts as a stakeholder?

Stakeholders are the individuals or groups who could be affected, directly or indirectly, by a decision. In investing that means far more than the client in front of you.

Stakeholders in an investment decision
Stakeholdersanyone affected directly or indirectly
  • Clients rely on your advice and care
  • Employer and colleagues share the firm and its reputation
  • The profession and the market regulators, other participants, trade bodies
  • Wider community society that depends on trusted markets

Take a junior analyst who rounds a company’s earnings forecast upward so that a “buy” rating looks stronger. The analyst’s bonus may rise. But clients who trade on the rating, the employer whose research loses credibility and the wider market that relies on honest research all lose. Over a longer horizon the analyst loses too. Looking at every stakeholder, over time, is what separates an ethical choice from one that is merely convenient.

What is a code of ethics, and how is it different from standards of conduct?

Communities such as universities, employers and professional bodies often write down their beliefs about required and forbidden conduct. Together the people bound by that code form a community of members , and joining it means agreeing to follow it.

A code of ethics is the general written statement of the community’s principles and values. It tells members, and outsiders, what the community stands for. Some communities go further and adopt standards of conduct : specific behaviors that are the minimum acceptable, which clarify the code and give a benchmark for discipline.

Code of ethicsStandards of conduct
What it isWritten set of shared principles and valuesSpecific, minimum required behaviors
PurposeCommunicates values and expectations to members and the publicTurns principles into practice; a benchmark for discipline
Level of detailGeneralSpecific
Where rules of conduct come from
Rules of conduct
  • Laws and regulations Know the idea set by a governing body; differ between countries
  • A community Memorize a profession, employer or university
    • Code of ethics Memorize general written principles and values
    • Standards of conduct Memorize specific minimum behaviors

A code does three useful things. It signals the community’s values to the outside world, it builds trust, and it gives members a reference point when a situation is unclear. What it cannot do is guarantee that every member behaves well. That is why communities display the code prominently, ask members to confirm in writing each year that they follow it, and discipline violations. A violation harms the whole community, because it damages its reputation with outsiders and trust among members.

Loading the interactive

Exam tip ”Code” and “standards” are not synonyms on this exam. Code = values, general. Standards = minimum conduct, specific.

Go deeper Why some communities adopt only a code and others add detailed standards

A short code is easy to remember and works well in a close, homogeneous group where members share the same background. As a community grows, becomes international or faces trickier situations, general principles leave too much to interpretation. Adding standards of conduct gives members and disciplinary panels something concrete to point to. The cost is that detailed rules can invite a “what is the least I can do?” attitude, which is why good communities keep the code as the spirit behind the standards.

Go deeper Ethics as a long-term investment

Reputation is slow to build and quick to lose. A firm whose people consistently tell the truth earns clients who stay, regulators who trust it and staff who want to work there. One scandal can undo years of that. The short-term gain from cutting a corner is usually small and certain; the long-term cost is large and uncertain, which is exactly why it is tempting to ignore. Lesson 3 returns to this tension.

Memorize this

MemorizeCode of ethics vs standards of conduct

Code of ethicsStandards of conduct
What it isWritten shared principles and valuesSpecific, minimum required behaviors
DetailGeneralSpecific
PurposeTells members and the public what the community stands forTurns principles into practice; benchmark for discipline

Memory hook Code = compass (the direction). Standards = signposts (the minimum you must follow). Members may always do more, never less.

Know it cold A code communicates shared values and builds trust. It does not guarantee that every member behaves ethically.

MemorizeWidely acknowledged ethical principles

PrincipleIn plain words
HonestyTell the truth
TransparencyShow the risks, costs and workings
Fairness (justice)Treat people evenly
DiligenceDo the work with care
Respect for the rights of othersTheir dignity and interests count

Memory hook Rebuild them from what a client asks of an adviser: tell me the truth (honesty), show me the costs (transparency), treat me like everyone else (fairness), do the work (diligence), respect my interests (respect).

Know it cold Ethical conduct = following moral principles and weighing the direct and indirect consequences for everyone affected.

Where rules of conduct come from
Rules of conduct
  • Laws and regulations Know the idea set by a governing body; differ between countries
  • A community Memorize a profession, employer or university
    • Code of ethics Memorize general written principles and values
    • Standards of conduct Memorize specific minimum behaviors
Stakeholders in an investment decision
Stakeholdersanyone affected directly or indirectly
  • Clients rely on your advice and care
  • Employer and colleagues share the firm and its reputation
  • The profession and the market regulators, other participants, trade bodies
  • Wider community society that depends on trusted markets

How it is asked

  1. What a code achieves

    A professional association adopts a code of ethics. It will most likely…

    Communicate shared values to members and the public. Trap: "ensure all members act ethically".

  2. Code or standards?

    Which is a more specific statement of the minimum behavior required?

    Standards of conduct. The code is the broader statement of principles.

  3. Who is harmed?

    An analyst delays a negative report so a friend can sell first. Which stakeholder is least likely to be harmed?

    The friend, who gains in the short term. Clients, the employer and market trust all lose.

Exam traps

  • "A code of ethics ensures members act ethically." It communicates values; it cannot guarantee conduct.
  • Mixing up the code (general principles) with standards of conduct (specific minimum behavior).
  • Assuming only clients are stakeholders. Employer, colleagues, the market and society count too.

Checkpoint

3 exam-style questions. About 90 seconds each.

  1. 1A professional association's code of ethics is most likely to:

  2. 2Compared with a code of ethics, standards of conduct are best described as:

  3. 3A research analyst holds back a negative report for a day so that a friend can sell shares first. The stakeholder least likely to be harmed by this decision is:

Key takeaways

  • Ethics = moral principles; ethical conduct weighs the effect on all stakeholders.
  • Code of ethics: shared values, general. Standards of conduct: minimum required behavior, specific.
  • A code builds trust but cannot guarantee conduct.
  • Short-term gains for one stakeholder often hide long-term harm to the rest.

All Ethical and Professional Standards formulas, every lesson

Practice exam-style questions on Ethics and Trust in the Investment Profession

Questions about this lesson?

Where this comes back

Questions candidates ask

What is ethics in the CFA curriculum?

A set of moral principles, such as honesty, fairness and diligence, that guide behavior. Ethical conduct follows those principles and balances your own interests against the direct and indirect consequences for everyone affected, the stakeholders.

What is the difference between a code of ethics and standards of conduct?

A code of ethics is a general written statement of a community's values. Standards of conduct are specific, minimum required behaviors that put the code into practice and give a benchmark for discipline. Members may always exceed them.

Why do professions adopt a code of ethics?

To tell members and the public what the profession stands for, give members a reference point, and build trust. A code cannot make anyone behave well, so it is usually backed by standards and a disciplinary process.

Spotted an error? Tell us and we will fix it.

  1. What ethics is, and why professions have a code of ethics
  2. How professions build trust, and professionalism in investment management
  3. Challenges to ethical behavior, and ethical vs legal standards
  4. A framework for ethical decision making

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