summing up an abbreviation is a shortening of a word or a phrase an acronym is an abbreviation that forms a word an initialism is an abbreviation that uses the first letter of each word in the phrase thus some but not all initialisms are acronyms
ROI, or return on investment, is a common business term used to identify past and potential financial returns. Managers and executives look to the ROI of a project or endeavor because this indicates how successful a venture will be.
A hands-off or passive investment of securities in a portfolio. A portfolio investment is made with the expectation of earning a return on it.This expected return is directly correlated with the investment's expected risk.Portfolio investment is distinct from direct investment, which involves taking a sizeable stake in a target company and possibly being involved with its day-to-day management. portfolio investment is made with the expectation of earning a return on it. This expected return is directly correlated with the investment's expected risk.