1. A fraudulent business practice where a distribution chain is artificially expanded with multiple distributors selling to other distributors at increasing wholesale prices, leading to inflated retail prices
   "The company's pyramiding scheme eventually collapsed, leaving many investors penniless"

1. Increase rapidly and progressively step by step on a broad base
   "The company's debt pyramided over the years"
    
2. Arrange or build up as if on the base of a pyramid
   "The children pyramided the blocks to create a tall structure"
    
3. (investing) enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts
   "The investor pyramided his stock positions during the bull market"
    
4. (crime) use or deal in (as of stock or commercial transaction) in a pyramid deal
   "The fraudsters pyramided stocks to artificially inflate their value"

Type of: arrange, benefit, cheat, deal, fraud, gain, increase, profit, rig [archaic], sell, set up, swindle, trade

Encyclopedia: Pyramiding