MOIC stands for “multiple on invested capital.” If you invest $1,000,000 and return $10,000,000 in 10 years your MOIC is 10x. If you invest $1,000,000 and return $10,000,000 in 3 years your MOIC is still 10x. But IRR is different, and often more important. IRR measures your financial return in respect to time.