10 pips.
forex.com has 15 as I know, check demo then you see
I don't get this Rossini, but please more experienced guys shoot me if I'm way off...IMHO you're best sticking to spreads that are tighter, whatever the pair. If we accept that once you have; the MM, discipline, TA and the emotions under control then probability is v. important. That probability will (roughly) stay the same using the same edge on whatever currency pair, therefore the bigger spread will lessen your winnings.
Also the lower the spread surely the bigger the liquidity pool that (hopefully) the SB boys are on the 'other side' of hedging, this should equal less unpredictability; less requotes, less delays....etc..
From my own personal experience I don't trade GBP/JPY for the simple reason that the spread on IG is 8-9 pips. If I had/have a stop its 10/11 pips before I'm into profit, not gonna play it despite how it behaves which TBH is much the same on most pairs (again shoot me down guys if I'm way off here).
When I (if I) move from IG it'll be for one reason only, a max 2 pips spread from any co. I completely trust/that won't go belly up over the next year and IMHO some of them must be on respirator now, particularly amongst the white label guys...
P.S. started thinking of this reply before I had time to read Gamma's excellent explanation
I don't use SBing for day trades/scalps, I trade using FXCM active trader so the prices are not manipulated.
In my opinion, different pairs act in different ways and all have their own 'personality'. So take a more range bound pair like the Aud Nzd and using mean revision etc can be a more effective way of trading.
Using mean revision on a pair that is trending heavily and the odds are significantly reduced, even if the spread is smaller.
The otehr thing to bear in mind is that it helps to move away from talking about 'pips' all the time. Look at spreads in percentage terms for a start (i.e compare to the big figure). Then you're comparing like for like. Then, look at daily or even intraday REALISED (i.e. not implied) volatility. Once you do this, work our which pair has the best % spread per unit of realised volatility. THAT is the actual tightest spread fwiw. Just saying 3 pips in cable is better than 5 pips in gbpjpy is massively oversimplifying the real dynamics of the trade.
Make sense?
GJ
For the stupid and mathematically impotent such as myself, what would be a simple back of an envelope way of working out volatility on a pair so that I can do the calculation you mention.Try doing it for the majors some time, ony your chosen platform. It's an eye opener at times.