Resistance —the opposite of support—is the price above which a security doesn’t tend to rise over a particular period of time.

Drug resistance is defined as the lack of expected response to a standard therapeutic dose of a drug or as resistance resulting from biologic changes in the target, as occurs in antibiotic resistance.

A resistance level is the point on a price chart at which an upward price trajectory is impeded by an overwhelming inclination to sell the asset. If a market price is nearing a resistance level, a ...

What is resistance? The most common definition of resistance is the opposition to current flow—more specifically the flow of electric charge in a material. The circuit element used to model this ...