A practice of initial public offering (IPO) underwriters that requires investors to buy shares at higher prices in the after-market as a condition for receiving lower-priced shares of the IPO. Following the stock market bubble that burst after reaching historic highs in early 2000, laddering has been mentioned as one possible explanation for the unique run up in first-day trading prices of IPOs during the bubble. Some IPOs even made triple-digit one-day gains.
In portfolio management, the practice of purchasing equal amounts of bonds with staggered maturity risk. Staggered maturity risk spreads out the risk of interest rate changes over time.
Ploughings and ladderings.