Explore popular quotes and sayings by a French mathematician Louis Bachelier.
Last updated on November 8, 2024.
Louis Jean-Baptiste Alphonse Bachelier was a French mathematician at the turn of the 20th century. He is credited with being the first person to model the stochastic process now called Brownian motion, as part of his PhD thesis The Theory of Speculation.
Clearly the price considered most likely by the market is the true current price: if the market judged otherwise, it would quote not this price, but another price higher or lower.
The mathematical expectation of the speculator is zero.
There is no useful information contained in historical price movements of securities.