Algorithmic Trading can be a complex subject. Keep your knowledge current with this glossary of key concepts, terminology, and technical indicators.
A type of health insurance arrangement that allows plan participants relative freedom to choose the doctors and hospitals they want to visit. Obtaining services from doctors within the health insurance plan's network, called "preferred providers", results in lower fees for policyholders; however, out-of-network doctors are still covered. Coverage under a preferred provider organization (PPO) requires ongoing payment of premiums by policyholders to the insurance company.