The idea that market prices reflect the latest data and information available to the public is known as price efficiency. Price efficiency refers to the idea that the price of a security or asset ...

The efficient market hypothesis is based on the notion that prices for securities or assets in a market are always reflective of all information available to investors. The efficient market ...

Weak form efficiency is one of three types under this hypothesis, the others being semi-strong and strong forms. In weak form markets, prices reflect all historical information, leaving only new ...