Quote from Maverick74:
The real world simply does not work this way. Look, unless you are talking about some brother in law of a company buying 500 shares of some stock, it's not easy to move size in any market. Size has to be worked. And that order is going to show up on the tape. I know, I use to watch the tape like a hawk back in the day when you could piggyback that size. TA applies to anything that is hitting the tape, inside or otherwise. Orders print on the tape and and that tape draws charts and those charts can be read. There is no way around this.
It will be easy to move the market once insider trading is legalized. Market makers will be antsy about absorbing volume knowing that information could affect them adversely at any second so there'd be less price stability. The Raj Rajaratnams and SAC Capitals of the world would not need to slowly accumulate to stay off the SEC's radar since it would be perfectly legal to throw a few million shares at the market. Sure, they may not do this but since they'd be competing with each other, it would happen relatively fast. You can be sure every officer at a company would be working with outside hedge funds. They would be competing with each other to get the info and price discovery would be IMMEDIATE.
I think this whole argument is fairly ridiculous as there are SO MANY holes that it's unfathomable to me that it would ever be allowed.
How's your tape reading now working on corporate earnings? There are probably illegal insider trading going on ahead of most corporate earnings reports today anyway, so if you think TA works in these situations, you should still be making a killing anyway.