Quarterly report [Sections 13 or 15(d)]

MARKETABLE SECURITIES

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MARKETABLE SECURITIES
6 Months Ended
Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract]  
MARKETABLE SECURITIES MARKETABLE SECURITIES
The amortized cost and fair value of our fixed income marketable securities as of the dates indicated below were as follows:
As of December 31, 2025 (In thousands) Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair
Value
Corporate debt securities $ 1,130,306  $ 4,938  $ (29) $ 1,135,215 
Money market funds and other 2,029,446  —  —  2,029,446 
Municipal securities 38,094  142  —  38,236 
U.S. Government agency securities 113,763  488  (18) 114,233 
U.S. Treasury securities 1,159,229  5,109  (19) 1,164,319 
Subtotal 4,470,838  10,677  (66) 4,481,449 
Add: Time deposits(1)
401,850  —  —  401,850 
Less: Cash equivalents 2,144,833  (1) 2,144,833 
Marketable securities(2)
$ 2,727,855  $ 10,676  $ (65) $ 2,738,466 
As of June 30, 2025 (In thousands) Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair
Value
Corporate debt securities $ 957,256  $ 4,456  $ (66) $ 961,646 
Money market funds and other 1,531,022  —  —  1,531,022 
Municipal securities 57,445  129  (1) 57,573 
U.S. Government agency securities 116,436  458  (58) 116,836 
U.S. Treasury securities 885,101  2,787  (329) 887,559 
Subtotal 3,547,260  7,830  (454) 3,554,636 
Add: Time deposits(1)
478,191  —  —  478,191 
Less: Cash equivalents 1,641,074  (1) 1,641,074 
Marketable securities(2)
$ 2,384,377  $ 7,829  $ (453) $ 2,391,753 
________________
(1) Time deposits excluded from fair value measurements.
(2) Excludes equity marketable securities.
Our investment portfolio includes both corporate and government securities that have a maximum maturity of three years. The longer the duration of these securities, the more susceptible they are to changes in market interest rates and bond yields. As yields increase, those securities with a lower yield-at-cost show a mark-to-market unrealized loss. Most of our unrealized losses are due to changes in market interest rates and bond yields. We believe that we have the ability to realize the full value of all these investments upon maturity. As of December 31, 2025, we had 43 investments in a gross unrealized loss position. The following table summarizes the fair value and gross unrealized losses of our investments that were in an unrealized loss position as of the dates indicated below.
As of December 31, 2025 Less than 12 Months 12 Months or Greater Total
(In thousands) Fair Value Gross
Unrealized
Losses
Fair Value Gross
Unrealized
Losses
Fair Value Gross
Unrealized
Losses
Corporate debt securities $ 66,944  $ (29) $ —  $ —  $ 66,944  $ (29)
U.S. Government agency securities 28,897  (18) —  —  28,897  (18)
U.S. Treasury securities 20,992  (19) 2,468  —  23,460  (19)
Total $ 116,833  $ (66) $ 2,468  $ —  $ 119,301  $ (66)
As of June 30, 2025 Less than 12 Months 12 Months or Greater Total
(In thousands) Fair Value Gross
Unrealized
Losses
Fair Value Gross
Unrealized
Losses
Fair Value Gross
Unrealized
Losses
Corporate debt securities $ 98,149  $ (63) $ 2,528  $ (3) $ 100,677  $ (66)
Municipal securities 5,774  (1) —  —  5,774  (1)
U.S. Government agency securities 32,780  (58) —  —  32,780  (58)
U.S. Treasury securities 238,627  (297) 20,330  (32) 258,957  (329)
Total $ 375,330  $ (419) $ 22,858  $ (35) $ 398,188  $ (454)
The contractual maturities of securities classified as available-for-sale, regardless of their classification on our Condensed Consolidated Balance Sheets, as of the date indicated below were as follows:
As of December 31, 2025 (In thousands) Amortized Cost Fair Value
Due within one year $ 1,192,512  $ 1,194,912 
Due after one year through three years 1,535,343  1,543,554 
Total $ 2,727,855  $ 2,738,466 
Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Realized gains and losses on available-for-sale securities for the three and six months ended December 31, 2025 and 2024 were immaterial.
The costs for our equity marketable securities were $22.9 million as of both December 31, 2025, and June 30, 2025. Unrealized gains and losses for our equity marketable securities for the three and six months ended December 31, 2025 and 2024 were immaterial.