ESG considerations in portfolio planning and construction
Environmental, social and governance (ESG) considerations can enter at every stage: in the investment policy statement (IPS) as client preferences, in asset-class definitions and benchmarks, and in security selection. The six common approaches are negative screening, positive screening, ESG integration, thematic investing, engagement (active ownership) and impact investing.
Before this: Asset classes, strategic asset allocation and portfolio construction, IPS constraints: liquidity, time horizon, taxes, legal and unique circumstances
On the exam
- Describe how environmental, social, and governance (ESG) considerations may be integrated into portfolio planning and construction
Describe how ESG considerations may be integrated. Expect 'which approach is described?' and 'how do exclusions affect risk and return expectations and the benchmark?'.
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.
What are the six ESG approaches?
Memorize
Responsible investing is the broad umbrella for principles that require environmental, social and governance (ESG) themes to be considered when deciding whether to invest in a company and while owning it. Sustainable investing is a close cousin that focuses on sustainability issues in the process. Investors increasingly write these policies into the IPS itself, and the exam works from that assumption. Terminology varies across the industry, but the curriculum uses six generic approaches. Know them by what the manager does.
- Negative screening Memorize exclude companies, sectors or countries
- Example no thermal coal miners
-
- Positive screening Memorize include those with better ESG performance, usually relative to peers
- Example top third of each sector by ESG score (best-in-class)
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- ESG integration Memorize systematically include material ESG factors in analysis and valuation
- Example lower a utility’s cash-flow forecast for carbon costs
-
- Thematic investing Memorize invest in themes or assets tied to ESG factors
- Example a water-infrastructure fund
-
- Engagement (active ownership) Memorize use shareholder power to change company behavior
- Example voting for board diversity; meeting management on emissions targets
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- Impact investing Memorize intend measurable social or environmental impact plus a financial return
- Example a fund financing affordable housing, with reported outcomes
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| Approach | What the manager does | Example |
|---|---|---|
| Negative screening | excludes companies, sectors or countries | no thermal coal miners |
| Positive screening (best-in-class) | favors companies with better ESG performance than peers | the top third of each sector by an ESG score |
| ESG integration | systematically includes material ESG factors in analysis and valuation | lowering a utility’s forecast cash flows for carbon costs |
| Thematic investing | invests in themes or assets tied to ESG factors | a water-infrastructure fund |
| Engagement (active ownership) | uses shareholder rights to change company behavior | voting for board diversity, meeting management on emissions targets |
| Impact investing | targets measurable social or environmental impact plus a financial return | a fund financing affordable housing, with reported outcomes |
Sort each description into its approach, then switch on the screen to see how exclusions change a benchmark.
Exam tip Exclude = negative. Best of peers = positive. Inside the model = integration. A theme = thematic. Uses votes = engagement. Measures outcomes = impact.
Where does ESG show up in the process?
Use it
- IPS Use it client values recorded, often under unique circumstances
- Asset classes and benchmarks Use it exclusions shrink the universe and can change risk and return; use a matching benchmark
- Portfolio construction Use it integration changes cash flows, discount rates or scenario weights; engagement and voting follow
- IPS. Client values and preferences are recorded, often under unique circumstances, sometimes with a dedicated responsible-investing section.
- Asset classes and benchmarks. Screens limit the securities to choose from, which can change the risk and return expected from the class. Asset classes are normally represented by standard benchmarks, so with exclusions an off-the-shelf benchmark may not apply. Providers offer benchmark indices that reflect common exclusions, and managers prefer to be measured against a benchmark that reflects the limited universe.
- Portfolio construction. Integration feeds ESG factors into forecasts, discount rates and scenario weights, and can change position sizes. Managers also need instructions on the exercise of shareholder rights and on the choice of strategies.
Integration is increasingly seen as a process improvement rather than an entirely new way to invest, so more asset owners expect their managers to beat the regular benchmark. ESG data range from structured numbers (carbon footprint, executive pay, staff turnover, lost-time injuries) to qualitative judgment, and disclosure rules are developing.
How are engagement, themes and impact put to work?
Know the idea
- Engagement takes time and often reflects the client’s interest more than the manager’s, so both must agree who votes, who files shareholder proposals and who talks to management. Voting may be delegated to the manager under its stewardship policy , handed to a proxy agent, or kept by the client. Collaborative engagement, where several investors act together, is more likely to get a company’s attention.
- Thematic allocations bias the asset-class portfolio toward a theme, so the manager should show how the theme changes the total risk and return. Specialist managers are usually needed.
- Impact investing selects opportunities on their intention to create a positive, measurable environmental and social outcome.
Does limiting the universe cost return? Supporters argue that better governance and the avoidance of material risks improve returns; opponents point to the cost and the narrower choice. Academic evidence is mixed, but adoption is strong, and integration is now common in mainstream funds, not only in client-specific accounts.
Go deeper Why materiality differs by industry
Governance matters for almost every company. Emissions and resource use matter most for energy, utilities and materials; labor practices and supply chains for apparel and retail; data privacy for technology. ESG integration therefore looks at material factors for each industry, not at the same list for every company. Material means likely to affect cash flows, risk or the cost of capital.
Go deeper Standards and greenwashing
Frameworks such as the Principles for Responsible Investment, the UN Global Compact and the Organisation for Economic Co-operation and Development (OECD) Guidelines for Multinational Enterprises set out standards that asset owners use as the basis of responsible-investing policies. Because labels are not uniform, a fund described as “green” or “sustainable” may mean different things; claims need checking against what the manager actually does, which is why disclosure standards continue to develop.
Go deeper Links to Corporate Issuers
Governance is the G in ESG. The lessons on corporate governance and on investors and stakeholders in the Corporate Issuers topic show the rights, boards and stakeholder interests that engagement and integration build on.
Memorize this
MemorizeThe six approaches by what the manager does
| Approach | What the manager does | Memory word |
|---|---|---|
| Negative screening | excludes companies, sectors or countries | Out |
| Positive screening | favors better ESG performers, usually versus peers | Best |
| ESG integration | puts material ESG factors into the analysis and valuation | Inside |
| Thematic investing | invests in an ESG-related theme | Theme |
| Engagement | uses votes and dialogue to change behavior | Voice |
| Impact investing | targets measurable social or environmental impact plus return | Outcome |
Memory hook Out, Best, Inside, Theme, Voice, Outcome.
Know it cold Integration never excludes a sector by itself; it changes the analysis. Exclusions change the universe, so the benchmark should reflect them.
- Negative screening Memorize exclude companies, sectors or countries
- Example no thermal coal miners
-
- Positive screening Memorize include those with better ESG performance, usually relative to peers
- Example top third of each sector by ESG score (best-in-class)
-
- ESG integration Memorize systematically include material ESG factors in analysis and valuation
- Example lower a utility’s cash-flow forecast for carbon costs
-
- Thematic investing Memorize invest in themes or assets tied to ESG factors
- Example a water-infrastructure fund
-
- Engagement (active ownership) Memorize use shareholder power to change company behavior
- Example voting for board diversity; meeting management on emissions targets
-
- Impact investing Memorize intend measurable social or environmental impact plus a financial return
- Example a fund financing affordable housing, with reported outcomes
-
- IPS Use it client values recorded, often under unique circumstances
- Asset classes and benchmarks Use it exclusions shrink the universe and can change risk and return; use a matching benchmark
- Portfolio construction Use it integration changes cash flows, discount rates or scenario weights; engagement and voting follow
How it is asked
-
Name the approach
A manager adjusts discount rates and cash flows for material environmental and governance risks for every company analyzed, without excluding any sector.
ESG integration. Trap: negative screening.
-
Positive screening or theme?
Invest in the companies with the strongest ESG scores in each industry.
Positive screening (relative to peers). Trap: thematic or impact.
-
Effect of exclusions
A pension fund excludes tobacco and weapons makers from its equities. What happens to its benchmark?
The benchmark should reflect the exclusions; they can change risk and return expectations.
-
Voting rights
A manager uses voting rights to push a company to set emissions targets.
Engagement (active ownership). Trap: impact investing.
Exam traps
- Confusing positive screening (relative to peers, across sectors) with thematic investing (a theme).
- Thinking ESG integration means excluding sectors. It means including material ESG factors in the analysis.
- Calling engagement 'impact investing'. Engagement uses ownership rights; impact investing targets measurable outcomes.
Checkpoint
5 exam-style questions. About 90 seconds each.
1A manager adjusts discount rates and cash-flow forecasts for material environmental and governance risks for every company analyzed, without excluding any sector. This approach is best described as:
2Investing in the companies with the strongest ESG scores in each industry is best described as:
3A pension fund excludes tobacco and weapons manufacturers from its equity allocation. Compared with the unscreened index, the fund's equity benchmark most appropriately:
4A manager uses the fund's voting rights and meetings with management to press a company to set emissions targets. This approach is best described as:
5After integrating ESG risks, an analyst sees three scenarios for a stock's annual return: a bear case of −10% with a 40% probability, a base case of 6% with 45% and a bull case of 14% with 15%. The probability-weighted expected return is closest to:
Key takeaways
- Six approaches: negative and positive screening, integration, thematic, engagement, impact.
- ESG preferences belong in the IPS; exclusions affect benchmarks and risk–return expectations.
- Integration changes the analysis itself, so it can move cash-flow forecasts, discount rates and position sizes.
All Portfolio Construction formulas, every lesson
Practice exam-style questions on Basics of Portfolio Planning and Construction
Questions about this lesson?
Where this comes back
- The Behavioral Biases of Individuals Portfolio Construction
- Corporate Governance: Conflicts, Mechanisms, Risks, and Benefits Corporate Finance
Questions candidates ask
What are the main ESG investment approaches?
Six: negative screening (exclude), positive screening (favor better ESG performers, usually relative to peers), ESG integration (include material ESG factors in analysis), thematic investing (invest in ESG-related themes), engagement or active ownership (use shareholder power) and impact investing (seek measurable impact alongside a financial return).
What is the difference between negative and positive screening?
Negative screening excludes companies, sectors or countries, for example tobacco or thermal coal. Positive screening includes or overweights those with better ESG performance, typically relative to industry peers. Both change the investment universe, which can affect expected risk, return and the right benchmark.
What is ESG integration?
ESG integration is the systematic inclusion of material ESG factors in asset allocation, security selection and portfolio construction. It changes the analysis, for example cash-flow forecasts, discount rates or scenario weights, and does not by itself exclude any sector.
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