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Overnight rolls


Hi does anyone know the charges for overnight shorts in Dow Jones - I had 20 short position and was charged 200 quid - seemed steep ? Also, if I square at 1 minute to close and re instate 1 min after close of Dow , I’m guessing I don’t get charged roll ?

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Does anybody know how to calculate the cost of overnight funding, for example with a SP500 DFB spreadbet?

I have found some informaton on the IG website It mentions an "admin fee" however it doesn't say what this admin fee actually is.

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so Dow is using the USD rate and USD uses 360 instead of 365 in the calc so the IG rate (commission and libor) is 5.02% for a long trade and -0.02% for a short.

so to give the the full calc for the cost of the long trade in the example above is; (£6.69 overnight charge for a £2/point bet.)  see calc below




And for the £2/point short in the example; -£0.03 overnight charge (credit) see calc below;


So for your own calc you will need to use your £/point and update the closing price, the commission is set and the libor rate is currently fairly stable.


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@andysinclair, unfortunately the snippets of information are somewhat scattered so it is difficult to bring it all together and the IG Wall street example in the post above was in a recent update to changes for the Libor used.

USD denominated markets now use the USD 1 month Libor rate rather than GBP 1 month Libor and also calculate the year as 360 rather than the 365 used in GBP denominated markets. 

Easy to see why it all gets confusing.


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