What this lesson is about
One decision, three asset classes, three different (but connected) mechanisms, the full cross-market picture behind why 'the Fed' dominates financial headlines.
Part 1 of 2
A single Fed rate decision impacts stocks, bonds, and currencies at the same time. That’s why "the Fed" grabs so many headlines. For stocks, higher rates lower valuations in two ways: first, they reduce a company's future profits in today’s dollars. This is known as a higher "discount rate" in valuation models. Second, they make safer, risk-free bonds more appealing than stocks, leading some investors to shift their capital away from equities. This isn't the same for all stocks. Growth companies, which rely heavily on profits expected far in the future, are more sensitive to rate changes. Value stocks, on the other hand, tend to have cash flows concentrated in the present, so they are less affected by rate adjustments.
Quick check
Through what basic mechanism do higher interest rates generally pressure stock valuations downward?
This discounting effect - future cash flows being worth less today at a higher discount rate - plus increased competition from safer bond yields, are the two core mechanisms connecting rates to stock valuations.
Part 2 of 2
For bonds, the connection is straightforward: bond prices and interest rates move in opposite directions. When rates go up, existing bonds issued at the lower fixed rate become less appealing compared to new bonds that offer higher rates. Their prices drop until their yields align with the new market rate. For currencies, higher U.S. rates compared to other countries usually attract foreign capital seeking better returns on dollar-denominated assets. This increases demand for dollars and strengthens the currency's value against others.
Quick check
What is the basic, direct relationship between interest rates and existing bond prices?
This inverse relationship is one of the most fundamental facts in fixed income - a newly higher prevailing rate makes existing, lower-fixed-rate bonds less attractive, pushing their price down until their effective yield matches the new market rate.
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