Thanks again for taking the time to comment wrbtrader, I'm the author of the article, which answers a couple of your questions. It works on all the index futures & ETF's, but I suppose a next step would be to test on all popular commodities. I'm an amateur astro physicist of sorts, & big saltwater fisherman (tides are everything) which is what interested me in the first place. I dont have any books on moon cycles or astrology as it relates to finance, but I'll certainly take a look around. Thats really interesting that athletes believe it impacts them as well, its not hard to make the case so it makes sense. I personally think its funny when people think stuff like moon cycles that effect every living thing on this planet are fubar, but a moving average which is just a made up line on a chart that effects nothing on planet Earth is vastly important.