(Bloomberg-Reuters-UBS-Superderivatives) Which one has true market data?

Imagine that I am going to buy a membership from one of these company. But I couldnt decide which one has the true market data. I need volatility,call-put prices, deltas and some stuffs about currency options. Some people told me Blooomberg and Reuters' data is not good, the data they are providing is very different from the actual value of the volatility.

Please help me about that subject. Which one do I have to prefer?

You're talking vanilla stuff I'm assuming?

Well depends on what costings you're looking at for all of these. Bloomberg does rather more than just price options for you so you're not really comparing apples with apples.

Also what sort of size are you trading. To pay for any of the major providers probably doesn't stack up unless you are doing at least the bottom end of 'market amounts'. Also, HOW are you trading? If you're just buying naked options I don't necessarily think you need something that sophisticated at all. But if you're gonna build a book, trade vol, manage gamma etc you certainly do.

Happy to try and help but maybe need a tad more detail.

PM me if you prefer to do it that way.

GJ

+ are you talking about exchange traded or OTC options.
If the former then obviously any data provider should be able to provide the correct prices, platform choice then depends on what extra functionality you require.