At the CEF/ETF Income Laboratory , we manage ~8%-yielding closed-end fund ( CEF ) and exchange-traded fund (ETF) portfolios to make income investing easy for you. Check out what our members have to say about our service.Juan is a contributor to the investing group CEF/ETF Income Laboratory which is led by Stanford Chemist. Features of the service include: managed income portfolios (targeting safe and reliable ~8% yields) making use of high-yield opportunities in the CEF and ETF fund space. These are geared ...