amit1986
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In the level 2 do you only want to see Market Makers and hide ECN's? Is my level 2 set up right? I dont see goldman sachs or morgan stanley. On the level 2 quantity column there is only numbers like 4, 2, 1...Is that in thousands of shares?(4 = 4,000 shares). On the tape under size it shows 100, is that mean 100,000 shares? The market column shows EDGX, ADEN, NSDQ, are those the people who hit the bid or offer? If you dont want me to write in your journal just say so.
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In the level 2, I want to see as many people as I can. So that includes market makers, ECNs, etc...It's not very common for big players like GSCO/MSCO/JPMS/etc...to come at or near the inside bid/ask. They do sometimes and you can play them well, but it's not very common. It's more common to see them far away from the current bid/ask (as is the case in your picture - scroll down the bid and you will find MSCO sitting there).
It is likely those sizes (4, 3, 2, 1) are lots of 100s. It is similar to IBs TWS time and sales screen. In a thin stock, if you put on 1000 shares, you can often see your trade printed on the time and sales and the size that appears is 10. So if you're doing 100 shares, it will appear as 1, 200 will appear as 2, etc...The best way to be sure is to find a stock that isn't moving too fast, take a 100 share position on it, see if u can find your trade go through on the time and sales and then you will know the ratio used.
EDGX, NSDQ, NSX, PSX, DRCTEDGE, NYSE, etc...are all ECNs. Market makers often use them to route orders secretly. Instead of GSCO sitting on the bid side evidently accumulating stock, he will play games with the bids/offers by routing his orders through ECNs so no one sees that it is him that is buying/selling.
The best way to become familiar with the economics of level 2 is to simply watch it. Find a trending stock, look at how the bids and offers behave, trades going through, orders being put or pulled. Don't do it with stocks like MSFT - there is too much noise there. Find a nice, slow stock with a tight spread and just observe.
Hope it helps.