Our series of case studies continues! Today we look at a simulated large-cap portfolio of the 1000 largest US companies, charting the comparison between two different weighting schemes. 

Chart demonstrating outperformance of ESG-filtered, ESG-weighted portfolio over market cap-weighted portfolio

The red line represents a market cap-weighted portfolio, which is just that: constituents are weighted by their market capitalization, with no filtering or other factors. 

The blue line represents the same 1000 companies with two ESG factors: companies below the median OWL ESG Score are filtered out, and the remaining companies are weighted by OWL ESG Score. 

Compared to the cap-weighted portfolio, the ESG-filtered/weighted portfolio significantly enhances total returns and risk-adjusted returns as measured by both Sharpe and Sortino ratios.

However, it’s interesting to note that adding the ESG filter does not improve portfolio performance. Revisit last week’s case study[link] to see how similar the performance is. At the end of the test period, the filtered-and-weighted portfolio value has risen to 417.36, while ESG-weighting alone saw its value rise to 432.31. 

Disclosure: March 31, 2009 is the first date that the OWL ESG historical database begins. The top 1000 US companies are not all covered in the OWL ESG database. Any companies not covered received a weight of 0.00% and their performance is not reflected in the OWL ESG-weighted simulated portfolio. Factor exposures other than ESG score, such as market capitalization, valuation ratios, and momentum have an effect on performance as well. Past performance is in no way indicative of future results.

The information contained herein (the “Information”) is for illustration and discussion purposes only. It is not, and may not be relied on as, investment advice or as an offer to sell or a solicitation of an offer to buy any security. The Information is not sufficient to form a basis for deciding to make any investment. There can be no assurance and no representation, express or implied, that the Information is accurate. The Information is provided as of the date indicated, is not complete, is subject to change, and no obligation is undertaken to revise or update it.