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In this paper, we discuss the attractiveness of green and sustainable assets, from an investor perspective. Inspired by the current state of the art, with researchers positively (re)considering the added value of stocks associated with the fulfilment of sustainable development goals, we analyze whether such stocks demonstrated: (1) a different and (2) an outperforming dynamic during various stages of the COVID-19 pandemic. In particular, we examine sustainable-indexed assets and companies with a fully bio-based production system, against a counterfactual group of non-indexed activities operating in the same sectors. Asset connectivity is investigated by means of a correlation network, and portfolio optimization is applied to measure profitability. The results show: (1) fewer connections between bio-based assets and the “rest of the world,” suggesting that, given their potential long-term resilience, investors might …