ESG investing has grown to $30+ trillion in assets. Here’s what the data actually shows about performance, costs, and how to invest responsibly.
ESG Investing Approaches
| Approach | What It Does | Example | Return Trade-off |
|---|---|---|---|
| ESG Integration | Uses ESG data alongside financials to select investments | MSCI ESG Leaders Index | Minimal (0-0.3%) |
| Negative Screening | Excludes industries (tobacco, weapons, fossil fuels) | FTSE4Good Index | Small (0.1-0.5%) |
| Positive Screening | Overweights companies with best ESG scores | JUST U.S. Large Cap | Minimal |
| Thematic | Invests in specific themes (clean energy, water) | Solar ETFs, Water ETFs | Varies widely |
| Impact Investing | Seeks measurable social/environmental outcomes | Green bonds, CDFIs | May accept lower returns |
| Shareholder Advocacy | Invests normally but uses ownership to push change | Proxy voting, engagement | No return trade-off |
ESG vs Traditional: Performance Comparison
Major Index Comparison (Annualized Returns)
| Index / ETF | 1-Year | 3-Year | 5-Year | 10-Year | Expense Ratio |
|---|---|---|---|---|---|
| S&P 500 (SPY) | +25% | +10% | +15% | +13% | 0.09% |
| S&P 500 ESG (EFIV) | +24% | +10% | +14.5% | N/A | 0.10% |
| MSCI USA ESG Leaders (SUSL) | +23% | +9% | +14% | N/A | 0.10% |
| FTSE US All Cap Choice (ESGV) | +24% | +9% | +14% | N/A | 0.09% |
| Total Market (VTI) | +25% | +10% | +15% | +13% | 0.03% |
Returns are illustrative based on recent index performance. The ESG gap is typically ±1-2% in any given year.
What Drives the Difference?
| Factor | Impact on ESG Performance |
|---|---|
| Underweight energy | Hurts when oil prices rise (2021-2022) |
| Overweight tech | Helps in tech rallies, hurts in downturns |
| Lower exposure to controversial stocks | Mixed — sometimes these stocks outperform |
| Better governance companies | Tends to reduce risk and volatility |
| Higher valuation of ESG companies | “ESG premium” may reduce future returns |
Top ESG ETFs
Broad US Market ESG
| ETF | Name | Expense Ratio | Holdings | Screening Method |
|---|---|---|---|---|
| EFIV | SPDR S&P 500 ESG | 0.10% | ~300 | S&P ESG scores, excludes bottom quartile |
| ESGV | Vanguard ESG US Stock | 0.09% | 1,500+ | Excludes weapons, tobacco, fossil fuels, nuclear, gambling |
| SUSL | iShares ESG Aware MSCI USA | 0.10% | ~300 | MSCI ESG Leaders methodology |
| ESGU | iShares ESG Aware MSCI USA ETF | 0.15% | ~300 | MSCI ESG tilt |
| SUSA | iShares MSCI USA ESG Select | 0.25% | ~200 | Stricter ESG selection |
| JUST | Goldman Sachs JUST U.S. Large Cap | 0.20% | ~450 | JUST Capital rankings |
International ESG
| ETF | Coverage | Expense Ratio | Holdings |
|---|---|---|---|
| ESGD | iShares ESG Aware MSCI EAFE | 0.12% | 350+ |
| VSGX | Vanguard ESG Int’l Stock | 0.12% | 4,500+ |
| ESGE | iShares ESG Aware MSCI EM | 0.25% | 300+ |
Bond ESG
| ETF | Coverage | Expense Ratio | Yield |
|---|---|---|---|
| EAGG | iShares ESG Aware US Aggregate Bond | 0.10% | ~4.5% |
| SUSC | iShares ESG Aware USD Corporate Bond | 0.18% | ~5.0% |
| BGRN | iShares Global Green Bond | 0.20% | ~3.5% |
Thematic ESG
| ETF | Theme | Expense Ratio | 5-Year Return | Volatility |
|---|---|---|---|---|
| ICLN | Clean Energy | 0.40% | -1.2%/year | Very High |
| QCLN | Clean Edge Green Energy | 0.58% | -0.5%/year | Very High |
| PBW | WilderHill Clean Energy | 0.62% | -5%/year | Extreme |
| PHO | Water Resources | 0.60% | +10%/year | Moderate |
| GRID | Clean Energy Infrastructure | 0.45% | +8%/year | Moderate |
Warning: Thematic ESG funds are significantly more volatile and concentrated than broad ESG funds. Clean energy funds in particular have seen major drawdowns.
What ESG Funds Exclude
Common Exclusion Screens
| Screen | What’s Excluded | % of S&P 500 Excluded |
|---|---|---|
| Tobacco | Tobacco manufacturers and distributors | ~1% |
| Weapons | Controversial weapons (cluster munitions, landmines) | ~2% |
| Fossil fuels | Coal, oil, gas extraction companies | ~3-5% |
| Nuclear power | Nuclear energy companies | ~1% |
| Gambling | Casino operators, gambling platforms | ~0.5% |
| Adult entertainment | Adult content companies | ~0.1% |
| Private prisons | For-profit prison operators | ~0.1% |
| Total typical exclusion | ~5-10% of market |
What This Means Practically
| If You Buy ESGV (Vanguard ESG US) | Excluded | Still Included |
|---|---|---|
| ExxonMobil, Chevron | ✅ Excluded | |
| Philip Morris, Altria | ✅ Excluded | |
| Apple, Microsoft, Google | ✅ Included | |
| JPMorgan, Goldman Sachs | ✅ Included (some ESG funds) | |
| McDonald’s, Coca-Cola | ✅ Included | |
| Amazon (warehouse concerns) | ✅ Included (most ESG funds) |
The ESG Rating Problem
| Issue | Details |
|---|---|
| Rating disagreement | MSCI and Sustainalytics rate the same company differently 50%+ of the time |
| Greenwashing | Companies can boost ESG scores with reporting, not action |
| Backward-looking | Ratings reflect past behavior, not future impact |
| Sector bias | Tech inherently scores better than energy (lower emissions) |
| Size bias | Large companies can afford ESG reporting; small companies can’t |
| Subjectivity | Is nuclear power good (low carbon) or bad (waste)? Raters disagree |
ESG Rating Comparison: Same Companies, Different Scores
| Company | MSCI ESG Rating | Sustainalytics Risk Rating | Refinitiv ESG Score |
|---|---|---|---|
| Tesla | A (above average) | High Risk | 80/100 (excellent) |
| ExxonMobil | BBB (average) | Severe Risk | 75/100 (good) |
| Amazon | BBB (average) | High Risk | 48/100 (below avg) |
| Microsoft | AAA (leader) | Low Risk | 92/100 (excellent) |
Tesla gets wildly different ratings depending on the agency — illustrating the subjectivity problem.
ESG Investing: Cost Consideration
| Fund Type | Average Expense Ratio | Cost on $100K/year |
|---|---|---|
| Total market index (VTI) | 0.03% | $30 |
| Broad ESG ETF (ESGV, EFIV) | 0.09-0.10% | $90-$100 |
| Active ESG fund | 0.50-1.00% | $500-$1,000 |
| Thematic ESG (clean energy) | 0.40-0.65% | $400-$650 |
The cost difference between a broad ESG ETF and VTI is minimal (~$60/year per $100K). But active and thematic ESG funds cost significantly more.
Should You Invest in ESG?
| If You… | Consider |
|---|---|
| Want broad exposure with modest value alignment | EFIV or ESGV (0.09-0.10% ER, minimal tracking error) |
| Want strict exclusions | ESGV (Vanguard, excludes fossil fuels, tobacco, weapons) |
| Want maximum impact | Direct impact investing or green bonds |
| Only care about returns | Total market index (VTI/ITOT) — lowest cost, broadest diversification |
| Want to influence companies | Shareholder advocacy / proxy voting |
Practical ESG Portfolio ($500K)
| Allocation | Fund | Purpose | ER |
|---|---|---|---|
| 55% US ESG Large Cap | EFIV | Core US with ESG screen | 0.10% |
| 20% Int’l ESG | VSGX | International with ESG screen | 0.12% |
| 15% US ESG Bonds | EAGG | Fixed income with ESG screen | 0.10% |
| 5% Clean Energy | GRID | Thematic tilt | 0.45% |
| 5% Green Bonds | BGRN | Impact fixed income | 0.20% |
| Weighted Average ER | 0.12% |
Related: How to Start Investing | Index Funds vs ETFs | International Investing | Best Robo-Advisors | Dividend Investing | Asset Allocation by Age