(1)金字塔式交易法；连续投机；追加落单
一种股票交易投机方法，利用所持有股票的利润追回购进同一股票。

(2)金字塔式控股
指一个控股公司以少量资本获得多家公司的控股权。

• nauticum foenus
• navagium
• Naval Academy
• naval bounty
• naval court
• naval court martial
• naval discipline
• naval lands
• naval reserves
• navarchus
• navicert
• navicularius
• navigability in fact
• navigable airspace
• navigable river
• navigable sea
• navigable stream
• navigable waters
• navigable waters of the United States
• Navigation Acts
• navigation rules
• Navigation Safety Regulations
• navis
• navis bona
• navy