Item 3. Quantitative and Qualitative Disclosures About Market Risk

We have operations both within the United States and globally, and we are exposed to market risks in the ordinary course of our business, including the effects of interest rate changes and foreign currency fluctuations. Information relating to quantitative and qualitative disclosures about these market risks is described below.

Equity Price Risk

Non-Marketable Equity Investments

Our non-marketable equity investments are investments in privately-held companies that we hold for purposes other than trading. These investments are inherently risky because there is no established market for these securities and the markets for the technologies or products these companies are developing are typically in the early stages. As such, we could lose our entire investment in these companies. Adjustments are recorded in other expense (income), net on the condensed consolidated statements of operations and establish a new carrying value for the investment. As of September 30, 2021, the aggregate carrying value of our non-marketable equity investments included in other non-current assets was $82.2 million. A hypothetical 10% increase or decrease in the carrying value of our non-marketable equity investments would have resulted in approximately $8.2 million increase or decrease in the value of the investment. Adjustments are recorded in other expense (income), net on the condensed consolidated statements of operations.

Bitcoin Market Price Risk

The Company invested $50.0 million and $170.0 million in bitcoin in the fourth quarter of 2020 and first quarter of 2021, respectively. Bitcoin is accounted for as an indefinite lived intangible asset, and thus, is subject to impairment losses if the fair value of bitcoin decreases below the carrying value during the assessed reporting period. Impairment losses cannot be recovered for any subsequent increase in fair value until the sale of the asset. As of September 30, 2021, the fair value of the investment in bitcoin was $351.7 million based on observable market prices resulting in $202.8 million in unrecognized gains. The Company recorded an impairment charge of $6.0 million and $71.1 million in the three and nine months ended September 30, 2021 due to fluctuations in the market price of bitcoin observed during the period. A hypothetical 10% increase or decrease in the market price of bitcoin as of September 30, 2021 would have resulted in approximately $14.9 million increase or decrease in the value of the bitcoin investment. Any decreases to the carrying value of bitcoin assets are recorded in operating expenses in the condensed consolidated statements of operations.

Interest Rate Sensitivity

Our cash and cash equivalents, and marketable debt securities as of September 30, 2021, were held primarily in cash deposits, money market funds, U.S. government and agency securities, commercial paper, and corporate bonds. The fair value of our cash, cash equivalents, and marketable debt securities would not be significantly affected by either an increase or decrease in interest rates due mainly to the short-term nature of a majority of these instruments. Additionally, we have the ability to hold these instruments until maturity if necessary to reduce our risk. Any future borrowings incurred under our credit facility would accrue interest at a floating rate based on a formula tied to certain market rates at the time of incurrence (as described above). A hypothetical 10% increase or decrease in interest rates would not have a material effect on our financial results.

Foreign Currency Risk

Most of our revenue is earned in U.S. dollars, and therefore our revenue is not currently subject to significant foreign currency risk. Our foreign operations are denominated in the currencies of the countries in which our operations are located, and may be subject to fluctuations due to changes in foreign currency exchange rates, particularly changes in the Japanese Yen, Canadian Dollar, Australian Dollar, Euro and British Pound. Fluctuations in foreign currency exchange rates may cause us to recognize transaction gains and losses in our statement of operations. A 10% increase or decrease in current exchange rates would not have a material impact on our financial results.