More than that - his analysis simply showed (in a fairly poor way, I might add) that there's serial correlation in daily returns. This is very very well known. However, autoregressive models can still have a random component. In fact, I can easily devise a random number generator that would give you the same results.
Just because there's structure doesn't mean it's not a random process.
Just because there's structure doesn't mean it's not a random process.
Quote from Corey:
Now I don't think markets are random, but your post doesn't really prove anything. The Wald-Wolfowitz runs test is for a TWO VALUED data sequence.
Sorry, but the market cannot simply be broken down into 'up' and 'down'. Those 'ups' and 'downs' have magnitudes, volumes, advance/decline ratios ...
In my opinion, your test doesn't take advantage of Occam's Razor to reduce noise ... it just ends up completely slicing any relevance away...
