I remember reading "A Random Walk Down Wall Street" I think was the name by John Bogel or Bogle. Have it in my library somewhere.

I believe markets are efficient in the long run and anything but in the short run. Or as the father of value investing said "in the long term the market is a weighing machine but in the short term a voting machine". Or something like that. may not be an exact quote as I am going from memory. Can't think of his name off hand. Warren Buffet's mentor.  Benjamin Grahm, remembered it. Have his book in my library also and he was a big influence in my investing. Thing of it is, value investing has not been a particularly good place to be the last ten years. Momentum has been everything.

In the short term the market can be very inefficient and I am sure some people have learned how to take advantage of that. I'm just not one of them. Took me some time to learn that. I'm a slow learner.

John