ESG disclosure is no longer compliance – it is a capital markets differentiator

For long, capital markets and investors regarded ESG as a compliance exercise. But that era is now firmly behind us, writes Sustainable Square CEO Monaem Ben Lellahom, who explains why ESG excellence nowadays forms an integral part of investment decision-making.

For over two decades, sustainability teams produced GRI reports, tracked hundreds of metrics, and wrote documents that nobody in finance could use. Zero linkage with profit & loss. Zero cost of capital connection. The data was real. The effort was genuine. The product was useless for anyone who actually moved capital.

ESG 1.0 was built to satisfy disclosure frameworks and score well on questionnaires. Neither requires financial translation. That is why it failed. Not because sustainability does not matter. Because satisfying a framework and pricing a risk are completely different jobs.

Here is what changed. Capital markets started pricing ESG directly into valuations. Not as a soft preference, but as a hard financial variable. MSCI tracked 4,319 companies across nine years and found a gap of around 110 basis points in total financing cost between the top and bottom ESG quintiles. That is not a projection. That is the market right now.

Two companies. Same sector. Same size. One pays $32 million more per year to borrow money. Same loan. Different ESG profile. The bank sees one as a risk and prices it accordingly.

Now look at valuation. Three companies, same $20 million annual profit, same sector. The ESG laggard is worth $116 million. The average company $144 million. The ESG leader $192 million. A $76 million gap. The only difference is how much investors trust the company. In other words, trust comes a price.

Pricing ESG into investments

The reason this happens is simpler than most people think. Investors do not read ESG reports. They price risk. Forward-looking climate exposure, cash-flow resilience under stress, governance credibility – these feed directly into discount rates, multiples, and lending spreads. When a company’s ESG is weak, every capital provider adjusts their number.

What most companies get wrong is the sequence. ESG is not the first filter investors apply. Profitability is. They find the ten most financially strong, liquid companies in a market first. Only then does ESG enter the picture – to separate the five that get capital from the five that do not.

While profitability gets companies into the room, it is ESG that hands them the overweight.

Building the ESG profile

For companies, building the ESG profile is important, but also a challenge. Most companies already have the data investors need. They just communicate it in the wrong language. “We cut 50,000 tonnes of CO2” means nothing to an analyst. “Our transition risk fell and our credit profile strengthened” does. Same fact. Completely different signal.

Every ESG metric can be translated: identify the issue, convert it into a financial risk or opportunity, quantify it in dollars, embed it in the investor story. Four simple steps. Yet, most companies never complete them.

Further, the operating model has to match. ESG cannot be a once-a-year sustainability report anymore. It is a shared mandate between the CFO and the Sustainability function, with board oversight, finance-team execution, and ESG data held to the same governance standards as financial data. Not beside the financial statements. Inside them.

IFRS S1 and IFRS S2 are closing the door on companies that treat this as optional. Carbon pricing assumptions embedded in financials. Climate scenarios tied to cash flows. Capex plans that reflect the transition. Audit-grade quality expected. The companies that spent the last five years building real data infrastructure will find this manageable. The others will not.

Conclusion

For capital markets and investors, ESG stopped being a narrative a long time ago: ESG drives trade-offs and decision-making. For companies, the valuation gap is real, and the cost of debt gap is real. Capital flows fifteen times faster to ESG leaders than to laggards, now is the time to seize the opportunity.