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MARKETABLE SECURITIES
 12 Months Ended
Jun. 30, 2024
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 June 30, 2024 (In thousands)Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Fair Value
Corporate debt securities$775,277 $973 $(2,018)$774,232 
Money market funds and other1,585,832 — — 1,585,832 
Municipal securities41,343 13 (197)41,159 
U.S. Government agency securities106,101 26 (253)105,874 
U.S. Treasury securities754,505 209 (3,408)751,306 
Subtotal3,263,058 1,221 (5,876)3,258,403 
Add: Time deposits(1)
932,436 — — 932,436 
Less: Cash equivalents1,689,540 — (1)1,689,539 
Marketable securities(2)
$2,505,954 $1,221 $(5,875)$2,501,300 
As of June 30, 2023 (In thousands)Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Fair Value
Corporate debt securities$508,511 $52 $(5,913)$502,650 
Money market funds and other1,257,223 — — 1,257,223 
Municipal securities32,525 — (737)31,788 
U.S. Government agency securities134,486 4 (918)133,572 
U.S. Treasury securities538,487 10 (8,782)529,715 
Subtotal2,471,232 66 (16,350)2,454,948 
Add: Time deposits(1)
471,439 — — 471,439 
Less: Cash equivalents1,629,248 4 — 1,629,252 
Marketable securities(2)
$1,313,423 $62 $(16,350)$1,297,135 
__________________ 
(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 June 30, 2024, we had 409 investments in an 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 June 30, 2024Less than 12 Months12 Months or GreaterTotal
(In thousands)Fair ValueGross
Unrealized
Losses		Fair ValueGross
Unrealized
Losses		Fair ValueGross
Unrealized
Losses
Corporate debt securities$355,882 $(942)$100,957 $(1,076)$456,839 $(2,018)
Municipal securities17,364 (81)10,788 (116)28,152 (197)
U.S. Government agency securities58,598 (137)17,197 (116)75,795 (253)
U.S. Treasury securities466,144 (1,040)166,867 (2,368)633,011 (3,408)
Total$897,988 $(2,200)$295,809 $(3,676)$1,193,797 $(5,876)
As of June 30, 2023Less than 12 Months12 Months or GreaterTotal
(In thousands)Fair ValueGross
Unrealized
Losses		Fair ValueGross
Unrealized
Losses		Fair ValueGross
Unrealized
Losses
Corporate debt securities$310,613 $(2,242)$161,263 $(3,671)$471,876 $(5,913)
Municipal securities9,011 (199)17,253 (538)26,264 (737)
U.S. Government agency securities80,793 (459)36,406 (459)117,199 (918)
U.S. Treasury securities288,376 (4,117)183,475 (4,665)471,851 (8,782)
Total$688,793 $(7,017)$398,397 $(9,333)$1,087,190 $(16,350)

The contractual maturities of securities classified as available-for-sale, regardless of their classification on our Consolidated Balance Sheets, as of the date indicated below were as follows:
As of June 30, 2024 (In thousands)Amortized
Cost		Fair Value
Due within one year$1,608,395 $1,606,178 
Due after one year through three years897,559 895,122 
$2,505,954 $2,501,300 
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 were immaterial for the fiscal years ended June 30, 2024, 2023 and 2022.
The costs for our equity marketable securities were $22.9 million and $3.2 million as of June 30, 2024, and June 30, 2023, respectively. Unrealized gains (losses) for our equity marketable securities were $(12.3) million, $7.1 million and $(18.9) million during the fiscal years ended June 30, 2024, 2023 and 2022 respectively.