Margin Impact?

Hello, i am a newbie and trying to understand "Margin Impact".

I want to buy 5,000 Shares, Limit Price 1.00 $ and it makes totally 5,022.50 $ (incl. Comission) . This is clear.

But the cash i need to pay variates depending on stocks. Please check the photos attached.

For NEPT i need to pay 1,600 $ but for APOP 3,785 $.

Can someone explain to me this "Margin Impact" column?

 

It's a function of the instrument's volatility. Not sure if they publish their formula.

 

No it has nothing to do with volatility...

If you buy the stocks for $1 the profit will be bigger with APOP than with NEPT (because the market is 1.75 and 1.33 resp.)

 

But i just want to buy 5,000 shares and it makes 5,025.00 (incl. Comission est.)

Why does IB give 1,600$ to me?

And Maintenance Margin is 6,625$. What does it mean for me?

 

They give 1600 to you because you are beating the market with 25%

 

Let's assume i've clicked the override and trasmit. 1,000 Shares x 45.00 $ = 45,000 $.

What does 11,348$ (initial margin and maintenance margin) mean for me?

 

that $11348 of your assets is locked (intraday) to hold this position (note that mainly maintenance is important)

 

Let's assume the next share price will be to 22.50$ (-50% decrease).

What happens?

 

then maintenance is 50% of 11348...

 

I mean after that i 've bought the stocks under the conditions as stated above, price of stock decreases -50% and my position will be 22,500$.

- There is no margin call at 25,500$ right? And when is the margin call? If position decreases to 11,348$?
- What if, i want to sell stocks at 22.50$ x 1000 Shares = 22,500$?