Rate Sensitivity — Duration Risk in Tech

Growth equities like Apple are valued using discounted cash flow (DCF) models where future earnings are discounted back to present value.

The discount rate used in these models is directly tied to long-term risk-free interest rates — primarily the 10-year US Treasury yield.

When long-term rates rise, the present value of future cash flows declines, mechanically compressing the P/E multiple that investors are willing to pay for the same earnings stream.

Apple, despite its maturity as a company, is still priced as a quality growth stock with a premium multiple.

This means it carries significant "duration" in the financial sense — a large portion of its market value is derived from cash flows expected in the distant future, particularly from Services growth.

The longer the duration, the more sensitive the valuation is to discount rate changes.

A 100-basis-point rise in the 10-year yield can translate to a 10-15% compression in tech multiples, all else equal.

The 2022 interest rate cycle provided a real-world stress test:

As the Federal Reserve aggressively raised rates from near-zero to over 5%, Apple and other major tech stocks experienced significant multiple compression even while maintaining strong earnings.

Apple's stock fell roughly 30% peak-to- trough in 2022 — not primarily due to earnings deterioration, but due to multiple compression driven by rising rates.

This rate sensitivity remains a structural headwind whenever the monetary policy environment shifts toward tightening. **Examples:

** 2022 — US equity markets:

Federal Reserve raised rates from 0.25% to 4.5% in 12 months → the technology sector (Nasdaq) declined 33% as P/E multiples compressed from 35x to 20x forward earnings; long-duration growth stocks underperformed the S&P 500 by 15 percentage points, with the highest-multiple names declining 50–80%. **Example 2:

** 2019 — US equity markets:

Fed pivoted from hiking to cutting in Q3 2019, cutting rates 75bps over 3 meetings → technology sector P/E expanded from 18x to 28x forward earnings by year-end; the Nasdaq returned 36%, outperforming the S&P 500's 29% return as declining rates disproportionately benefited long-duration technology valuations.