NDD and ECN different charts?

Hi guys,
just want to know is there any different for the chart between NDD and ECN?
Because, eventhough it is from the same broker (i dont know if i can tell the broker name or not) but they are showing different chart. I just noticed it today, thats why sometimes the price showing different action when it facing daily high or daily low, and S/R line. I just dont dare to judge the broker are cheating the price yet, because my lack of knowledge of the NDD and ECN system.

I attached the image, and circled the strange price area. And maybe you all can give some opinion.

The upper image are chart from ECN, below are NDD

post the name of the broker please

My thoughts are this:

Your broker probably has different liquidity providers for each type of account. The ECN accounts tend to have vastly deeper liquidity pools. Therefore, the price swings TEND to be less volatile. This equates to slightly smaller price bars. Fundamentally, before any market can move higher, all the offers at a certain price level need to be bought up before it can move higher. Conversely, all the bids have to be sold before a market can move lower. So the ECN account tends to have more bids/offers (deeper liquidity pool IE 10 million instead of 1 million) at every price increment which is why you see slightly smaller price bars because it takes more trades and or volume to move the ECN's because of the vast amount of bids/offers waiting to be filled.

This is a very simplistic attempt to get you to see the difference in an ECN account. I hope it helps. You could contact your broker and have them explain the difference to you. I'm pretty sure they will say something similar, but probably will be better at the explanation. LOL

Well now that I think about it, Mark Douglas explains it rather well in the following video on youtube. It's titled "Mark Douglas - Mind over Market". He really gets into what I was trying to explain in part 2. I'll post up part one and you can continue to click through to the next part when each one ends. I do recommend this video for all traders to watch, although I know I will get bashed for that because not all traders think mental discipline is key. I, however, do believe it is so all of you that disagree.. bug off I don't care if you like this video or not.

thanks for the reply SatchFan,
i think the data feed should be exactly the same between ECN or NDD, else you'll make wrong analysis, (like i did ).
In this case how come the price action from ECN prior to yesterday high is following from NDD data feed?

@hedge212 the broker is alpari nz

Ask Alapri that very question.... You might think they "Should be the same" but they "might" not be.. ask them. Best to get the answer strait from the source, right?

yeah i think i should ask it to them directly, thanks.

btw love the vid's