The efficient market hypothesis states that share prices reflect all relevant information, and that it is impossible to beat the market or achieve above-average returns on a sustainable basis. There ...

The efficient market hypothesis theory states that the market prices securities fairly and efficiently, and investors are unable to outperform the market consistently. Moreover, EMH theory proposes ...

Active investors make the market efficient by attempting to gain a competitive advantage in terms of information. Competition among all the highly skilled competitors makes it very difficult to gain ...

Every time a major financial crisis occurs, numerous premature obituaries of the Efficient Market Theory (EMT) seem to appear in various business publications. The Wikipedia link provided here only ...

At first blush, stock trading this week is hardly a paragon of the market-efficiency theory, an oft-romanticized idea in Economics 101. After all, big equity gauges plunged on Monday, spurred by fears ...

Investors are constantly reminded that the markets are efficient and there is no use trying to beat the market as it cannot be done on a consistent basis. In fact, we are told, that over 70% of the ...

In "Efficient Market Theory and Crisis" (op-ed, Oct. 29), Jeremy J. Siegel convinced me that the efficient market hypothesis was a contributing factor to the financial crisis. If the prices of ...

BUILD a better mousetrap, the saying goes, and the world will beat a path to your door. Find a way to beat the stockmarket and they will construct a high-speed railway. As investors try to achieve ...

The efficient market hypothesis argues that current stock prices reflect all existing available information, making them fairly valued as they are presently. Given these assumptions, outperforming the ...

Two investors discuss recent events with Peloton and the emotional reactivity in the markets. It's been a tough time for many investors lately, and plenty are feeling the pain of beaten-down ...