SIE (Securities Industry Essentials) Practice Exam 2026 - Free SIE Practice Questions and Study Guide

Inflation risk refers to the potential for inflation to erode the purchasing power of an investment's returns. When inflation rises, the fixed interest payments from bonds become less valuable in real terms, meaning that the investor receives the same nominal amount but its purchasing power decreases.

Bill, who primarily holds U.S. Treasury bonds, is the investor most subject to inflation risk. Treasury bonds typically offer fixed interest payments. If inflation increases, the real value of these fixed payments decreases because they do not adjust for inflation. As a result, the returns on Bill's investments would not keep pace with rising prices, significantly impacting his purchasing power and the overall value of his investment.

In contrast, high-yield corporate bonds may offer returns that can somewhat offset inflation due to potentially higher interest rates. A diversified portfolio of international stocks can provide some protection against inflation as companies can adjust prices in response to inflationary pressures. Investments in commodities like gold and oil often serve as hedges against inflation since their prices may rise when inflation increases, potentially protecting the investor's purchasing power. Therefore, Bill's reliance on U.S. Treasury bonds makes him particularly vulnerable to inflation risk.