The other day I had one of the cable business channels on in the background. I sometimes find the parade of prognosticators to be amusing although it's a little scary that some viewers might believe this stuff. One commentator noted that stocks "always" have a big rally the last week of October.
Don't viewers see the problem with this type of claim? If stocks "always" rally the last week of October, it would make sense for everyone to buy the week before to capture the value increase of the rally. Then, the rally would occur the week before when the buying started. And, of course, knowing this, everyone would buy the week before that. And, so on and so on.
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