Failure to isolate the most-qualified niche can waste marketing funds, time and energy.

自绝于最优利基之外的失败将浪费营销资金、时间和精力。

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Rotation also lights the way as funds exit hot plays and allocate capital to niche market groups that can outperform during these periods.

市场转换也能为资金退出热门仓位并分配资金到那些在此期间跑赢大盘的有利可图的市场集团指明道路。

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BlackRock and other ETF providers also argue that niche funds have a role in saving institutional investors including many mutual funds the trouble of doing intense research into arcane sectors or countries.

WSJ: Fat Years for Narrowly Focused ETFs

The third option is to use niche index funds or ETFs to build a publicly traded portfolio weighted to track the total economy, rather than just the public stock market.

FORBES: Investment Guide

The prime brokerage unit provides services to hedge funds, a lucrative niche business that has grown in importance with the expansion of the hedge fund industry.

FORBES: Bear Names New Head Of Securities Unit