ESG Investing: Why “Green” Companies Are Winning?

Here’s something that happened more than once in Indian markets.

A company looks perfect on paper with a clean balance sheet, growing revenues, respectable management, analysts are positive, and institutions are holding. 

Then, something surfaces, environmental violations that were apparently ongoing for years, or a governance problem that several board members knew about, and nobody disclosed, and the stock falls 30% in a week.

The financial statements never showed it coming. Financial statements show what has already happened, but they didn’t show what’s building.

That’s where ESG analysis enters and tries to look at what’s building. Through this guide, we will understand what ESG investing is and why investors need to consider ESG before investing in any company.

Key Takeaways

• ESG stands for Environmental, Social, Governance – three categories of business risk that quarterly earnings reports consistently fail to surface before they become expensive
• ESG investing adds these factors to financial analysis rather than replacing it
• Better ESG scores are linked to better long-term risk management, not just better optics
• Greenwashing, rating inconsistency, and unclear return evidence are real problems in ESG investing that shouldn’t be glossed over
• SEBI now mandates ESG disclosure from India’s top listed companies through BRSR requirements

What Is ESG Investing?

Let’s start with what ESG actually means.

Environmental is about how a company interacts with the physical world – carbon emissions, water usage, waste, and pollution. 

Social covers how the company treats people – employees, customers, suppliers, and communities. 

Governance covers how the company is run – board structure, executive accountability, disclosure quality, and shareholder rights.

ESG investing uses these three dimensions as inputs into investment decisions alongside the standard financial metrics. Revenue, margins, and debt levels stay in the analysis. ESG factors get added to that picture.

Why bother? 

Environmental liabilities can accumulate for years before they show up in financial statements. And, the governance failures compound quietly before they surface publicly. Also, social risks, a pattern of worker safety violations, a data privacy problem, a supply chain scandal, build up invisibly until they produce a lawsuit or regulatory action that suddenly moves the stock.

By the time the financial statements reflect these risks, they’ve usually already become losses. ESG analysis catches them earlier, while they’re still risks rather than outcomes. That’s the practical argument for it, separate from any ethical argument.

Why ESG Investing Is Gaining Importance Today?

Three things happened more or less simultaneously.

Climate change became financially material rather than just politically contested. Insurers started pricing physical climate risk, carbon pricing has expanded, and energy companies started realising that fossil fuel assets they’d carried at book value might be worth considerably less if carbon regulations were tightened further. None of this was on the balance sheets, all of it was real exposure.

Regulators started mandating disclosure. The EU’s Sustainable Finance Disclosure Regulation requires fund managers to disclose how they incorporate ESG risks. SEBI’s Business Responsibility and Sustainability Reporting requirements make ESG disclosure mandatory for India’s top listed companies. Mandatory standardised disclosure matters because voluntary sustainability reporting is nearly impossible to use for meaningful comparison; companies choose what to highlight and what to leave out.

Institutional capital moved in the same direction. Large asset managers began incorporating ESG screening into investment processes. When that much capital starts screening for ESG factors, companies scoring poorly face higher borrowing costs and lower equity valuations as a market consequence. That’s financial, not ethical as it happens whether individual investors care about ESG or not.

The Three Pillars of ESG

Environmental Factors

Carbon emissions, energy usage, water consumption, waste management, pollution incidents, and biodiversity impact are what get evaluated here.

These matter most in energy, manufacturing, agriculture, and extractives. A coal miner operating in a water-stressed region with a history of pollution violations sits in a completely different risk category from a software company with no meaningful physical footprint. Applying the same environmental lens to both is a category error that produces useless analysis.

Stranded assets deserve specific mention. Energy companies carry fossil fuel reserves on their balance sheets at values that assume a future where those resources get extracted and sold. If carbon regulations tighten significantly, some of those reserves may never be economically viable to extract. That’s a balance sheet risk that current financial statements don’t capture. ESG analysis that takes the energy transition seriously does.

Social Factors

Labour practices, workplace safety, workforce diversity, data privacy, product safety, and supply chain standards are the primary areas here.

The link between social factors and financial outcomes is real, even if it’s not immediate. A company with repeated safety violations accumulates regulatory fine risk, litigation exposure, and workforce disruption risk that will show up in financial results eventually. The lag is long enough that standard analysis misses it. That lag is also why tracking it in advance has value.

The supply chain is the part that most investors underestimate. A company’s own disclosed operations can appear clean while tier-two or tier-three suppliers operate in ways that create reputational and legal exposure flowing back upstream. Consumer brands have discovered this repeatedly.

Governance Factors

Board independence, executive compensation structure, disclosure quality, anti-corruption policies, shareholder rights, and auditor independence are what get evaluated under governance.

Governance is the pillar that determines whether problems in the other two categories get identified and corrected early or stay hidden until they become crises visible to everyone. A board that genuinely challenges management on difficult questions produces different long-term outcomes than one that rubber-stamps whatever the CEO proposes. That structural difference doesn’t appear in financial metrics until it produces visibly different results years later.

Management pays tied to short-term earnings metrics creates consistent incentives to make short-term decisions. Those decisions compound over the years before the cost becomes visible in business results.

How ESG Investing Works?

Different investors use ESG differently depending on what they’re trying to accomplish.

Negative screening is the oldest approach, excluding companies or sectors that fail minimum ESG standards. Tobacco, weapons manufacturers, and coal producers. Simple to implement, limits the investable universe, and requires minimal ongoing ESG analysis once the exclusion criteria are set.

Positive screening flips this – actively selecting companies with strong ESG performance within their sector rather than just cutting out the worst. The underlying belief is that companies managing ESG factors well are managing their businesses well, which should translate into better long-term risk-adjusted returns.

ESG integration incorporates ESG data directly into financial modelling. An analyst adjusts valuation assumptions to reflect carbon transition costs or adjusts risk premiums to reflect governance quality. ESG becomes an analytical input rather than a separate filter.

Thematic investing builds portfolios around specific ESG themes – renewable energy, clean water, sustainable agriculture, and gender diversity. The portfolio is constructed around companies operating in sustainability-linked areas regardless of overall ESG composite scores.

Engagement uses ownership rights to push companies on ESG issues through shareholder resolutions and direct management engagement rather than simply selling and moving on. Some large investors specifically use this approach to drive improvement rather than rewarding already good performers.

Understanding ESG Performance

ESG performance means how well a company manages the environmental, social, and governance factors relevant to its specific business. It gets assessed through external ratings, sustainability disclosures, regulatory filings, and direct examination of underlying data.

MSCI, Sustainalytics, and ISS are the major global rating providers. CRISIL and CARE Ratings provide ESG assessments in India.

Here’s the part that doesn’t get said enough: ratings from different providers frequently disagree substantially with the same company. The methodologies, data sources, and weightings they use vary enough, so that a company can score well with one provider and poorly with another at the same time. This isn’t a minor discrepancy. It means composite ESG scores are less reliable as decision inputs than their numerical precision implies.

Looking at the underlying data is more useful than relying on composite scores. Actual emissions figures. Actually safety incident rates. Actual board composition. The raw data tells a more honest story than the numbers produced by aggregating it through a methodology the investor hasn’t examined.

Why ESG Is Important for Investors?

The main reason is risk identification at a stage when something can still be done about it.

Poor environmental practices build regulatory liabilities that financial statements don’t reflect yet. Poor governance raises fraud and mismanagement probability in ways that financial statements can’t show until after the event. Poor social practices accumulate litigation exposure and reputational damage that compound invisibly. ESG analysis surfaces these while they’re still future risks rather than current losses.

There’s also a market-level capital allocation effect that operates independently of individual investor preferences. When large institutional capital screens for ESG factors, companies scoring poorly face higher borrowing costs and lower equity valuations as a direct consequence. This affects corporate financial performance whether any specific investor cares about ESG. The market effect is real.

ESG Investing vs Sustainable Investing

The terms get used interchangeably, but they don’t mean the same thing.

ESG investing uses a specific three-category methodology with defined metrics. Sustainable investing is the broader category that ESG sits within. All ESG investing is sustainable investing but not all sustainable investing uses formal ESG frameworks.

How Investors Identify ESG-Friendly Companies?

Third-party ratings from MSCI, Sustainalytics, ISS, and CRISIL are useful starting points. The methodology behind each score matters as much as the score itself because different providers reach substantially different conclusions on the same company.

SEBI BRSR disclosures are mandatory for India’s top listed companies and provide standardised comparable data across companies. These are more reliable than voluntary sustainability reports because the format is prescribed rather than chosen by the company making the disclosure.

Regulatory and incident records – actual environmental violations, safety penalties, and data breach records, reveal operational ESG performance more honestly than self-reported metrics. A company can publish strong sustainability content while simultaneously accumulating regulatory penalties that tell a different story.

Sector-specific materiality keeps the analysis focused on factors that actually affect financial performance in each industry rather than applying identical checklists to every company regardless of what business they’re in.

Challenges and Criticism of ESG Investing

Greenwashing is the most persistent and significant problem. Companies project ESG-friendly images through marketing and selective disclosure while actual practices remain largely unchanged. Net-zero commitments for 2050 alongside continued harmful operations today are a pattern that repeats constantly. Investors relying on surface-level ESG signals without examining actual operational data are regularly misled.

Rating inconsistency is a structural problem rather than a temporary gap. No globally accepted ESG rating methodology exists, and MSCI and Sustainalytics scores for the same company often diverge substantially. Comparing ratings across providers without understanding their methodology differences produces conclusions that aren’t reliable.

Measurement difficulty is genuine rather than just a transitional problem. Some important ESG factors are inherently hard to quantify. Numerical precision applied to qualitative inputs produces outputs that look more reliable than they actually are.

The return evidence is mixed, and the strong claims made by ESG proponents aren’t consistently supported. Some studies show ESG-screened portfolios outperforming conventional ones over specific periods. Others show underperformance. The relationship between ESG scores and investment returns isn’t stable enough to support the straightforward claim that ESG investing produces better financial outcomes.

Political backlash has made ESG contested in some markets, particularly in the United States, where several states have restricted ESG considerations in public pension fund management. This creates regulatory uncertainty that affects how ESG products get developed and distributed.

Why ESG Investing May Shape the Future of Markets?

Regulatory requirements are expanding, and the direction seems unlikely to reverse, given where climate policy is heading globally. Better mandatory disclosure improves ESG analysis quality over time.

The capital allocation effect compounds. As more institutional money incorporates ESG factors, companies with poor profiles face a structurally higher cost of capital, which makes improving ESG performance financially rational for management independently of investor pressure.

The energy transition will produce real economic winners and losers across industries over the next few decades. Companies positioned well for that transition versus companies sitting on stranded asset risk represent different investment outcomes. That’s an economic reality that ESG analysis can help identify, rather than a values preference being applied to investment decisions.

Younger investors show stronger ESG preferences than older cohorts consistently. As wealth transfers generationally, the investor base for ESG products grows from demographics alone.

The Bottom Line

ESG investing doesn’t deliver guaranteed better returns, and that claim shouldn’t be made.

Greenwashing is real and persistent. Rating inconsistency is a structural problem. The return evidence is genuinely mixed. The measurement difficulties are real rather than temporary. ESG investing is not a clean solution to the problems it identifies.

What it offers is a framework for seeing risks that standard financial analysis consistently misses until they become losses. Environmental liabilities, workforce practices, and governance integrity affect long-term financial performance in ways that quarterly earnings reports simply don’t capture until the damage is already done.

Not using these factors isn’t conservative analysis. It’s choosing to work with incomplete information while believing that’s sufficient.

The regulatory trajectory globally, including SEBI’s expanding BRSR requirements in India, points toward more ESG integration rather than less. Understanding ESG well enough to evaluate claims made about it, spot greenwashing, and use the underlying data rather than surface-level scores is increasingly basic financial literacy.

Jainam Broking provides equity, mutual fund, and investment access through one integrated platform. Open a free Demat account in five minutes.