尽管某些人对金融部门有偏见，但金融部门投资组合的债务人投资集中度却并不明显。

Its investment portfolio has no significant obligor investment concentration, although there is some bias to the financial sector.
其投资组合并没有十分集中在债务的投资，虽然有一些偏向财务业方面。

obligor 是债务人，但我想 obligor investment 是指对债务的投资，如买债卷。

bias to 不是有偏见，而是偏向。bias against 才是有偏见。



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Note added at 19 hrs (2019-12-29 02:21:45 GMT)
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Its investment portfolio has no significant obligor investment concentration, although there is some bias to the financial sector.
意思是：这个投资组合虽然偏向投资在 财务/金融 业，但没有大量集中投资在债卷或债务(debt instuments)上。

English term (edited): obligor investment concentration

Its investment portfolio has no significant obligor investment concentration, although there is some bias to the financial sector.
尽管其投资的投资组合偏重金融板块，但并未出现明显的债务人集中投资情形。
sector：行业、部门、板块，这里应该是指的证券投资，投资者会挑选一些公司来买入他们的股票之类的证券。