Active collaboration between Islamic finance and the forms of finance generally referred to as sustainable and responsible investing (SRI) has not occurred yet. Islamic finance and SRI share some obvious similarities in their objectives, methods and claims. Both seem to trigger similar expectations among their proponents of being ethically different from conventional finance. They also face similar criticism of not being able to live to up to these expectations. Although SRI is older and larger than Islamic finance, which is estimated between $1 to $2 trillion in terms of global assets, both are relatively small and growing segments.