Quote from maler:
This is the beauty of internalization.
It is not obvious even to some experienced traders how
they get fleeced.
It is all about negative selection.
The internalizing BDs and dealers that purchase
order flow interact with it before it hits
an exchange or ECN where your limit order sits.
This gives them a license to jump the public queues
and grab the trade ahead of you even though you
may have signaled your intention to trade at that price
before the flow arrived.
The cost to you is negative selection.
Your buy does not get filled when the bid holds, but rather
only when it becomes the new ask.
Similarly, your sell is filled mostly
when the ask becomes the new bid.
If your business is to compete in capturing the spread,
you will be at a severe disadvantage compared to someone
that gets first pass on the order flow.
It is important to realize that your limit order gets fleeced
not only by your own BD, but by all BDs or traders
that jump the queue.
The current market structure gives them a license
to hijack a fill that would rightfully be yours
if price/time priorities were enforced.
Great post...
But I'm not really getting "fleeced"...
Because I have 500 orders out there at any given time...
And I am completely agnostic which ones get filled.
It's more like my volume is being reduced somewhat...
And I'm being chiseled... which is the Way of the World...
And it's all built into my Business Model.
After giving this some more thought...
Here is a specific example how IB and everyone with Order Flow...
Games their Customers by reducing their volume.
Today I made 800 trades:
NYSE = 560 (70%)
SMART = 36 (12%)
Of the 36 SMART trades 12 were a 0.0001 price improvement...
So an IB affiliate jumped the queue by 0.0001 and I got filled...
And I got about $1.00 in total price improvement.
But on the flip side...
There are probably 50 trades...
Where ANOTHER BD jumped in front of me by $0.0001...
And let's say I missed an execution in 50% of those cases...
For a loss of 1/2 the spread of $0.04 times 300 shares...
(Average NYSE trade size)...
So a loss of $0.02 x 300 x 25 = $150.
So this "exemption" which allows BDs to $0.0001 jump you...
Results in massive ratio in their favor...
They give me $1.00 and I lose $150 profit in lost volume.
This is what I mean by NYSE et al being corrupt, but intelligently so...
They just nickel and dime a Limit Order trader...
So they can keep the scam going for a 100 years...
And any competent trading firm can absorb the small losses.