The short answer
The price of a share reflects what investors are willing to pay today for cash flows they expect a company to produce in the future. When the return available on relatively safe government bonds rises, future corporate cash flows are discounted more heavily. Their present value falls, all else equal.
That mechanism matters to the Nasdaq because many of its largest companies are valued on profits expected years ahead. The further into the future the market expects the cash flow, the more sensitive its present value is to a change in the discount rate.
This is why technology shares are often described as long-duration equities. It does not mean they have a maturity date like a bond. It means that a greater share of their expected economic value sits further in the future.
1. The discount-rate channel
A simple valuation starts with expected future cash flow and brings it back into today's money. The rate used in that calculation includes a risk-free reference, often linked to US Treasury yields, plus compensation for the uncertainty of owning equity.
When the Treasury component rises, the denominator in the valuation rises. Unless expected cash flows improve enough to offset it, the price investors can justify today falls.
The Federal Reserve has documented a close relationship between interest rates, stock returns and valuation ratios over long horizons. Its research also notes that high-duration stocks have been more sensitive to monetary policy.
2. The alternative-return channel
Higher Treasury yields do not affect valuation mathematics alone. They also change the menu available to investors.
If government bonds offer a more attractive return, an investor can earn more without accepting the same degree of corporate or equity risk. The required return on shares may rise. Money does not have to leave technology entirely, but the hurdle for owning an expensive growth company becomes higher.
This is the opportunity-cost effect: the market asks why it should pay a very high multiple for uncertain future growth when safer assets offer a higher yield today.
3. The financing-cost channel
Rates also affect companies through the real economy. Higher policy rates and bond yields can raise borrowing costs, reduce investment, slow hiring and make acquisitions more expensive.
The effect is not identical for every technology company. A highly profitable platform with substantial cash may be less exposed to refinancing risk than a young company funding expansion through repeated borrowing or share issuance.
This is one reason the Nasdaq can fall while some large, cash-rich technology companies hold up better than speculative software, space or pre-profit businesses.
4. The expectations channel
The market does not react to the level of yields in isolation. It reacts to why yields moved.
Yields can rise because growth expectations are improving. In that case, stronger expected company earnings may partly offset the valuation pressure.
They can also rise because inflation is proving persistent or the Federal Reserve is expected to remain restrictive. In that case, the discount-rate pressure is harder for growth shares to absorb.
The same move in the 10-year yield can therefore produce a different market result depending on whether it comes from better growth, worse inflation or a change in the risk premium.
Why the 10-year Treasury receives so much attention
The federal funds rate is an overnight policy rate. Equity valuations, however, depend on cash flows spread over many years. The 10-year Treasury yield is not a perfect equity discount rate, but it is a widely watched long-term reference that captures expectations for future short rates, inflation and term risk.
For Nasdaq investors, the direction and speed of the move often matter as much as the absolute level. A rapid rise can force portfolios to reprice before company earnings have time to adjust.
A practical four-question framework
When yields rise and the Nasdaq falls, ask four questions:
- Did the yield move come from stronger growth or more persistent inflation?
- Are analysts raising or cutting the company's expected cash flows?
- Does the company generate cash today, or is most of the value based on distant profits?
- Are corporate credit spreads also widening, or is the move confined to government yields?
The fourth question is especially useful. If Treasury yields rise but corporate credit remains orderly, the move may be primarily a valuation adjustment. If credit spreads widen rapidly as well, the market may be signalling a broader deterioration in financing conditions.
When the usual relationship breaks
The Nasdaq does not fall every time yields rise, and it does not rise every time yields fall.
Exceptional earnings can overwhelm the discount-rate effect. A breakthrough that raises expected cash flows materially can support a company's value even in a higher-rate environment.
Falling yields can also be negative when they reflect fear of recession. The discount rate may fall, but earnings expectations can fall even faster.
The correct conclusion is therefore not “rates up, technology down” as an automatic rule. The more useful framework is:
Value today = expected future cash flows, discounted for time and risk.
Yields affect the discounting. Growth and company execution affect the cash flows. Market prices reflect both.
Sources and further reading
- US Securities and Exchange Commission, Investor.gov: bond prices, yields and interest-rate risk: investor.gov
- Federal Reserve Board: Stock Market Fluctuations and the Term Structure: federalreserve.gov
- Federal Reserve Board: The Stock Market–Real Economy “Disconnect”: A Closer Look: federalreserve.gov
- Federal Reserve Board: What Explains the Stock Market's Reaction to Federal Reserve Policy?: federalreserve.gov
- Federal Reserve Bank of St. Louis: What Do Bond Yields Signal about the Economy?: stlouisfed.org
This is an educational framework, not investment advice.