Par value stock has no relation to market value and, as a concept, is somewhat archaic. The par value of a share of stock is the value stated in the corporate charter below which shares of that class cannot be sold upon initial offering; the issuing company promises not to issue further shares below par value, so investors can be confident that no one else will receive a more favorable issue price. Thus, par value is the nominal value of a security which is determined by the issuing company to be its minimum price. This was far more important in unregulated equity markets than in the regulated markets that exist today.