Cash Equivalents and Short-Term Investments (Tables)

6 Months Ended

Jan. 31, 2023

Cash equivalents and short-term investments consisted of the following as of January 31, 2023:


	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value

Cash equivalents:	(in thousands)
Money market funds	$	436,581	$	—	$	—	$	436,581
U.S. treasury securities	26,933		—		(2)		26,931
U.S. government agency securities	369,324		—		(79)		369,245
Corporate debt securities	117,303		—		—		117,303
Total cash equivalents	$	950,141	$	—	$	(81)	$	950,060

Short-term investments:
U.S. treasury securities	$	31,533	$	40	$	—	$	31,573
U.S. government agency securities	276,278		—		(6,471)		269,807
Corporate debt securities	350,578		337		(3,963)		346,952
Total short-term investments	$	658,389	$	377	$	(10,434)	$	648,332

Total cash equivalents and short-term investments	$	1,608,530	$	377	$	(10,515)	$	1,598,392

Cash equivalents and short-term investments consisted of the following as of July 31, 2022:


	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value

Cash equivalents:	(in thousands)
Money market funds	$	247,613	$	—	$	—	$	247,613
U.S. treasury securities	202,778		—		(70)		202,708
U.S. government agency securities	135,525		2		(38)		135,489
Corporate debt securities	106,272		—		—		106,272
Total cash equivalents	$	692,188	$	2	$	(108)	$	692,082

Short-term investments:
U.S. treasury securities	$	96,089	$	10	$	(251)	$	95,848
U.S. government agency securities	339,957		6		(6,628)		333,335
Corporate debt securities	293,968		—		(5,022)		288,946
Total short-term investments	$	730,014	$	16	$	(11,901)	$	718,129

Total cash equivalents and short-term investments	$	1,422,202	$	18	$	(12,009)	$	1,410,211

The amortized cost and fair value of our short-term investments based on their stated maturities consisted of the following as of January 31, 2023:


	Amortized Cost		Fair Value

	(in thousands)
Due within one year	$	427,636	$	423,153
Due between one to three years	230,753		225,179
Total	$	658,389	$	648,332

Short-term investments that were in an unrealized loss position as of January 31, 2023 consisted of the following:


	Less than 12 Months				Greater than 12 Months				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses

	(in thousands)
U.S. treasury securities	$	24,983	$	—	$	—	$	—	$	24,983	$	—
U.S. government agency securities	75,709		(23)		183,088		(6,448)		258,797		(6,471)
Corporate debt securities	49,577		(181)		141,110		(3,782)		190,687		(3,963)
Total	$	150,269	$	(204)	$	324,198	$	(10,230)	$	474,467	$	(10,434)

Short-term investments that were in an unrealized loss position as of July 31, 2022 consisted of the following:


	Less than 12 Months				Greater than 12 Months				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses

	(in thousands)
U.S. treasury securities	$	80,833	$	(251)	$	—	$	—	$	80,833	$	(251)
U.S. government agency securities	230,670		(5,150)		50,134		(1,478)		280,804		(6,628)
Corporate debt securities	155,968		(3,947)		71,127		(1,075)		227,095		(5,022)
Total	$	467,471	$	(9,348)	$	121,261	$	(2,553)	$	588,732	$	(11,901)