Why Tick Volume is different in different broker? What is the volume count based? Does larger Tick Volume mean more trade in that broker?

[Sky All]

Dear experienced traders 

I found something interesting in Tick Volume. 

We already have some discuss for MT4. 

https://www.mql5.com/en/forum/109552/page4

Do you know below for MT5? 

1. Why Tick Volume is different in different broker?

2. What is the volume count based? 1 lot count as 1 or 1,000 lot count as 1? 

3. Does larger Tick Volume mean more trade in that broker? 

Thank you in advance and best wishes, 

Sky

[Carl Schreiber]

They have different liquidity providers, different clients trading different amounts ...

[Enrique Dangeroux]

Tick volume is tick volume, it means nothing else. The real reason is there is a difference, it is not a central market. As result has effects like Carl describes. Besides, brokers can filter ticks, less ticks, less volume. 

[Sky All]

Carl Schreiber:
They have different liquidity providers, different clients trading different amounts ...

Thank you so much, Carl. 

Do you know how to find the total (Central Market) Volume? 

I'm wondering the how the price decided fairly...

[Sky All]

Enrique Dangeroux:
Tick volume is tick volume, it means nothing else. The real reason is there is a difference, it is not a central market. As result has effects like Carl describes. Besides, brokers can filter ticks, less ticks, less volume. 

Thank you so much, Enrique. 

>>Besides, brokers can filter ticks, less ticks, less volume. 

Could you kindly tell us more detail?