Claes Fornell

[1] Fornell's research centers on the development and application of advanced quantitative methods for understanding how to obtain high financial returns and lower risk at the same time.

ACSI is a predictor of consumer spending and economic growth at the macro level,[2] along with a variety of company-level financial performance metrics[1], and tracks customer satisfaction for more than 400 companies.

[3][4][5][6] The ACSI technology, for which Fornell was awarded a US patent (US 8,666,515 B2) in 2014, has been used in many countries in addition to the United States, including Australia, China, Finland, France, Germany, Great Britain, India, Italy, the Netherlands, Singapore, South Africa, South Korea, Spain, Sweden, Switzerland, the United Arab Emirates (Dubai), and others.

Claes Fornell is the lead author of several articles linking customer satisfaction to stock returns, demonstrating that portfolios of firms with high ACSI scores consistently outperform the market.

He is also the founder of American Customer Satisfaction ETF (Ticker: ACSI) that invests in public companies with strong customer satisfaction,[9][10] and Detroit Vineyards, a winery with a pedigree dated to 1702 when Antoine de la Mothe Cadillac established the first vineyard in Detroit.