Quote from gaj:
os - wasn't looking for details, just general things. i do some intraday extreme reversion to mean, and the typical buy pullbacks on strength / sell pullbacks on weakness.
but you basically answered much of my question with this:
and that's exactly why i *wasn't* trading much of the NYSE stocks. i couldn't get the hang of some of the specialists tactics, even when i'd see them (like the spread widening). i did learn pretty quickly, esp. on the NYSE stocks, that if i got something that looked like a great fill (not on widening, but normal spreads) relative to the bid/offer, that the stock was probably heading the other way.
now, some of those great fills are due to (more common) hidden orders and high frequency traders, and are less indicative of an imminent reversal in stock price.
i mentioned this on another thread, but one of the important keys for me is recognizing which patterns work best in what markets. we've now put in a topping pattern, the high P/E stocks are taking it hard, and good news is sometimes being interpreted poorly. that doesn't mean we ARE topping longer-term, but it's what the action is right now. therefore, there's certain setups i would have traded 6-9 months ago that i'd be more hesitant to trade now, and there's overnight scans i do now that i wasn't doing then.
one of the ones i'm avoiding, at the moment, is buying big gap downs in size - and on my extreme RTM, i'm waiting a bit longer to enter, in smaller size.