Quote from Don Bright:
I may disagree a bit with my friend Maverick about the NYOB. I like to see where the larger orders are sitting, and since they "can" hold the orders a few seconds, there is generally less "bluffing" going on. I'm sure that Mav has developed his tape reading skills over the years, and looks at what he feels is best for his trading. I do agree that seeing time and sales is usually worthless.
We spend an hour or so in class showing how to identify buyers or sellers that are not being reflected on the quotes, L2, NYOB, ECN's etc. Many of these are computer generated trades that pop in using "if-then" statements....i.e. If bid goes to 1.85 on Nov 30 calls, then pay 30.95 for stock IOC, etc.
We can "fish" by entering small bids between markets, we can fish by attempting to pay the offer, while getting filled at a better price (thus identifying an active seller), etc.
There is a lot to "all encompassing" tape reading...I try to spend a few hours with the boot campers verbalizing what I'm looking at, and, even though they may take a while to do it themselves, they generally seem to be very appreciative of the demonstrations.
It really is an acquired "art" / "skill" - but if you don't know what to look for, then you can't really develop your own abilities.
I watch every trade, every bid/ask size change, specialist "intervention" when "masking" larger NBBO bids/offers, and keep close trace of the PREM/DISC to FV of futures....look for the round numbers (bids/offers)...watch those (not too smart) guys who insist on selling in front of big offers (thinking that they have a built in "stop loss" - and they rarely get to cover at that price because the buyer will buy their .99 offers all day, then buy the point, then the shorts run the stock a nickel or a dime...it's so funny to watch.
Anway, back to my tape reading....
Don