I agree to tulip-san's opinion because 'ヘッジ機能’is financial term.
Aso 'capability has the meaning of　'機能'. Here is'allow(・・・できる'、'可能にする’）. So I suppose 'capability' means　other meanings such as '能力’or '機能'. Probably these appear the top or No.2 when you check 'capability' in a dictionary.
Please see references I select, you will see ’ヘッジ能力’ which is also an important term in financial field.
Full hedging is a strategy for reducing foreign exchange risk.
So I would say ’’フルヘッジ能力’が発揮できる、生かす’.

Generally, (risk) hedge or hedging should be a risk management tool to shirk away from risk , also be a sort of tolerability of risk. So here,the context seems to indicate its 「機能　or 能力」 is required. This sentence seems to make more sense if 'capability' means "機能"or "能力".

リスクに対するヘッジ能力
http://imdr.dpri.kyoto-u.ac.jp/lecture/bousaijouhou/7_7.pdf
http://blog.livedoor.jp/columnistseiji/archives/50707658.htm...
http://www5.cao.go.jp/j-j/wp/wp-je08/pdf/08p02020.pdf
http://jp.reuters.com/article/topNews/idJPJAPAN-328378200807...

Hedging here is the same meaning as risk hedging.
http://www.kyj-kyj.info/リスクヘッジ.htm

Wiki:
http://en.wikipedia.org/wiki/Hedge_(finance

I suggest the above, but it's more like ’フルヘッジ機能’.
「フルヘッジ」「部分ヘッジ」「 適時ヘッジ」
http://money.infobank.co.jp/contents/Z300033.htm

Sorry, but I reposted because I found a mistake in my explanation about 'hedging'.


Hope to help you to deliver accuracy and quality.


>Asker's comment:
>Asker: Thank you for showing me many examles. It seems >that "機能" is also a important word. I think the translation you >suggested ’’フルヘッジ能力’が発揮できる" is brilliant. Thank you very >much.
>Asker: I meant "能力" instead of "機能"



Mamy thanks!

Mami




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Note added at 1 day23 hrs (2011-07-05 06:04:58 GMT)
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↑　many desu..