Item 3. Quantitative and Qualitative Disclosures About Market Risk

CURRENCY EXCHANGE RATE RISK

Due to the global nature of our operations, we are exposed to currency exchange rate changes, which may cause fluctuations in earnings and cash flows. Fluctuations in the currency exchange rates of currency exposures that are unhedged, such as in certain emerging markets, may result in future earnings and cash flow volatility. The gross notional amount of all currency exchange rate derivative instruments outstanding at October 29, 2021 and April 30, 2021 was $15.2 billion and $14.7 billion, respectively. At October 29, 2021, these contracts were in a net unrealized gain position of $81 million. Additional information regarding our currency exchange rate derivative instruments is included in Note 8 to the current period's consolidated financial statements.

A sensitivity analysis of changes in the fair value of all currency exchange rate derivative contracts at October 29, 2021 indicates that, if the U.S. dollar uniformly strengthened/weakened by 10 percent against all currencies, it would have the following impact on the fair value of these contracts:

Any gains and losses on the fair value of derivative contracts would generally be offset by gains and losses on the underlying transactions. These offsetting gains and losses are not reflected in the above analysis.

In the second quarter of fiscal year 2019, we began accounting for our operations in Argentina as highly inflationary, as the prior three-year cumulative inflation rate exceeded 100 percent. The change did not have a material impact on our results for the three and six months ended October 29, 2021.

INTEREST RATE RISK

We are subject to interest rate risk on our short-term investments and our borrowings. We manage interest rate risk in the aggregate, while focusing on our immediate and intermediate liquidity needs. Our debt portfolio at October 29, 2021 was comprised of debt predominately denominated in U.S. dollars and Euros, of which substantially all is fixed rate debt. We are also exposed to interest rate changes affecting our investments in interest rate sensitive instruments, which include our marketable debt securities.

A sensitivity analysis of the impact on our interest rate-sensitive financial instruments of a hypothetical 10 basis point change in interest rates, as compared to interest rates at October 29, 2021, would have the following impact on the fair value of these instruments:

For a discussion of current market conditions and the impact on our financial condition and results of operations, please see the “Liquidity” section of the current period's Management's Discussion and Analysis. For additional discussion of market risk, refer to Notes 6 and 8 to the current period's consolidated financial statements.