For those who did not read about some revelations coming forth from
Dark Pools: High-Speed Traders, A.I. Bandits, and the Threat to the Global Financial System (
http://tinyurl.com/7tyfjym) this is a recap I posted after finishing the book.
More information, and Zerohedge postings, can be found if you read last Weekend Update.
viewtopic.php?f=2&t=601&start=60
This is a completely different market than all years in US history leading up to 2008, In 2009 the SEC instituted Regulation NMS which mandates orders continually move "through the plumbing" to the best exchange where it could be filled or at the best price. And with that they handed 2000 PhDs the way to move your orders around such that it now includes HFTs/Algos in 85% of the trades you place. The estimates of what is skimmed of your orders is you work 20 years at a firm that invests in a retirement plan is $10,000 to possibly $20,000, in today's dollars, out of your retirement account. The SEC is deaf to the Mutual Funds industry cry for relief.
The very worst part? They have absolutely no idea why the Flash Crash happened. And most machines are set to go flat when volatility picks-up.
The Law of Unintended Consequences is going to be a bitch!