ESG Investing: Environmental, Social, and Governance Funds Explained

June 25, 2026 3 min read

ESG investing means considering environmental, social, and governance factors alongside traditional financial analysis. It’s grown from a niche approach to a major force in global markets.

What ESG Actually Means

FactorWhat It MeasuresExamples
EnvironmentalImpact on the planetCarbon emissions, pollution, renewable energy
SocialImpact on peopleLabour standards, diversity, community relations
GovernanceHow the company is runBoard diversity, executive pay, shareholder rights

ESG Investing Approaches

ApproachStrategyExample
ExclusionaryAvoid “sin stocks” (tobacco, weapons, fossil fuels)Most basic ESG funds
Best-in-classInvest in leaders within each sectorCompanies with highest ESG ratings
ThematicInvest in specific ESG themesClean energy, water, gender equality
ImpactMeasurable positive outcomesGreen bonds, community development
IntegrationESG factors into standard analysisSophisticated institutional approach

Do ESG Funds Underperform?

This is the most debated question in ESG investing.

PeriodESG vs Non-ESGNotes
2010–2019ESG slightly aheadLow rates favoured ESG companies
2020–2021ESG significantly aheadTech and clean energy boomed
2022ESG underperformedEnergy stocks (low ESG) soared
2023–2026Roughly equalPerformance has converged

Conclusion: ESG doesn’t inherently underperform. But it does have sector biases — less energy, more tech — which affect relative performance in different market conditions.

Top ESG ETFs

ETFFocusTERYield
iShares MSCI USA SRI UCITSUS large caps with high ESG0.20%1.2%
Vanguard Global ESG StockGlobal ESG screened0.20%1.8%
Xtrackers MSCI World ESGDeveloped world ESG0.20%1.5%
Legal & General Future WorldUK + global ESG0.15%2.0%

How to Evaluate ESG Funds

QuestionWhat to Check
What’s excluded?Oil, tobacco, weapons, gambling?
How is ESG scored?In-house, MSCI, Sustainalytics?
Does it match your values?Some “ESG” funds still hold fossil fuels
What’s the track record?At least 3 years of performance
What’s the fee?ESG funds tend to have higher fees

Common Criticisms

  1. Greenwashing — Some funds claim ESG credentials without meaningful screens
  2. Inconsistent ratings — MSCI, Sustainalytics, and S&P often rate the same company differently
  3. Lower diversification — Exclusion reduces your investment universe
  4. Not always ethical — A “best-in-class” oil company is still an oil company
  • EU Sustainable Finance Disclosure Regulation (SFDR) — Article 8 and 9 fund classifications
  • UK Sustainability Disclosure Requirements — New labelling rules
  • US anti-ESG backlash — Some states restrict ESG investing for pension funds
  • AI for ESG — Machine learning analysing corporate disclosures and news

Bottom Line

ESG investing allows you to align your portfolio with your values without necessarily sacrificing returns. Choose a fund with transparent criteria and a strong track record. Beware of greenwashing — read the fund’s holdings, not just its marketing. And remember: the best ESG investment is one you can stick with through market cycles.

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This content is for educational purposes only. Not financial advice. Do your own research before investing.