ESG in Banking: Stewardship Codes and Investor Expectations

Banks occupy an unusual position in ESG conversations: they're evaluated both on their own operational sustainability and on the sustainability of everything they finance. That second dimension is where stewardship codes increasingly come into play.

What a stewardship code actually asks for

A stewardship code sets expectations for how asset owners, asset managers, and, increasingly, banks acting as institutional investors, engage with the companies they invest in or finance. Unlike hard regulation, stewardship codes are typically voluntary frameworks, but "voluntary" doesn't mean low-stakes: signatories are expected to demonstrate robust governance and genuine investment engagement, not simply sign on for reputational credit and do nothing further.

In practice, this means banks with investment arms or asset management divisions are increasingly expected to show how they use their position as shareholders or lenders to influence portfolio companies' governance and sustainability practices, through voting, direct engagement, and escalation when companies fail to respond to concerns.

Why banks face this pressure from two directions

Banks sit at an unusual intersection in the ESG landscape. As direct operators, they face the same disclosure and governance expectations as any large company: emissions from their own operations, workforce practices, board composition. But as financial intermediaries, they also face growing pressure over financed emissions, the greenhouse gas footprint of the companies and projects they lend to or invest in, which for most banks dwarfs their direct operational footprint by a wide margin.

This is why climate-related financial disclosure frameworks increasingly require banks to report Scope 3 Category 15 emissions, financed emissions, using methodologies like those developed by the Partnership for Carbon Accounting Financials (PCAF). A bank's own office energy use is a rounding error next to the emissions profile of its loan book.

The investor expectations layer

Institutional investors and proxy advisors increasingly evaluate bank management not just on financial performance but on how effectively the bank manages climate and sustainability-related risk across its lending and investment portfolio. This shows up concretely in proxy season: shareholder proposals asking banks to disclose financed emissions, set sector-specific lending targets for high-emissions industries, or adopt more rigorous climate risk stress testing have become a recurring feature of major bank annual meetings.

Proxy advisors like ISS and Glass Lewis factor stewardship and climate risk management into their voting recommendations on bank director elections and say-on-pay votes, meaning stewardship performance has direct governance consequences, not just reputational ones.

The tension banks are navigating

Banks face competing pressures that don't resolve cleanly. Some investors and regulators push for more aggressive climate risk management and financed emissions reduction targets. Simultaneously, banks face political and legal pushback in some jurisdictions over ESG-related lending decisions, with anti-ESG legislation in certain U.S. states restricting how state pension funds and public contracts can account for ESG factors, and some banks scaling back public climate commitments in response to this pressure.

This has made stewardship positioning genuinely difficult to navigate: a stance that satisfies climate-focused institutional investors can draw criticism from anti-ESG advocates, and vice versa, in a way that's more polarized for banks than for companies in less politically charged sectors.

What effective bank stewardship looks like in practice

Banks managing this well tend to focus on specificity over broad commitments: concrete, sector-specific financed emissions targets rather than vague portfolio-wide pledges, transparent methodology disclosure for how financed emissions are calculated, and clear documentation of engagement escalation processes when portfolio companies don't respond to sustainability concerns raised through voting or direct dialogue.

The practical takeaway

For banks, stewardship isn't a side conversation to core financial performance, it's increasingly treated as a governance competency in its own right, evaluated by investors, proxy advisors, and regulators alongside more traditional measures of bank management quality. Banks that treat stewardship as a genuine operational discipline, rather than a disclosure exercise, are better positioned as scrutiny from all sides continues to intensify.