Commitments, contingencies and guarantees (Tables)

12 Months Ended

Mar. 31, 2021

Commitments, Contingencies and Guarantees [Abstract]


	Millions of yen
	March 31, 2020		March 31, 2021
Commitments to extend credit
Liquidity facilities to central clearing counterparties	¥	1,288,774	¥	1,400,076
Other commitments to extend credit		958,659		901,867

Total	¥	2,247,433	¥	2,301,943

Commitments to invest	¥	15,278	¥	136,367

Maturity schedule of commitments


	Millions of yen
	Total contractual amount		Years to maturity
	Total contractual amount		Less than 1 year		1 to 3 years		3 to 5 years		More than 5 years
Commitments to extend credit
Liquidity facilities to central clearing counterparties	¥	1,400,076	¥	1,400,076	¥	—	¥	—	¥	—
Other commitments to extend credit		901,867		106,684		198,334		204,430		392,419

Total	¥	2,301,943	¥	1,506,760	¥	198,334	¥	204,430	¥	392,419

Commitments to invest	¥	136,367	¥	111,576	¥	2,339	¥	4,338	¥	18,114

Maturity schedule of purchase obligations


	Millions of yen
	Total		Years of payment
	Total		Less than 1 year		1 to 2 years		2 to 3 years		3 to 4 years		4 to 5 years		More than 5 years
Purchase obligations	¥	121,604	¥	30,120	¥	15,511	¥	10,856	¥	1,578	¥	63,071		¥468

Information on derivative contracts and standby letters of credit and other guarantees


	Millions of yen
	March 31
	2020				2021
	Carrying value		Maximum potential payout / Notional total		Carrying value		Maximum potential payout / Notional total
Derivative contracts (1)(2)	¥	7,197,647	¥	279,734,884	¥	5,207,911	¥	322,635,226
Standby letters of credit and other guarantees (3) (4)		—		2,351		—		206,072

(1)	Credit derivatives are disclosed in Note 3 “ Derivative instruments and hedging activities ” and are excluded from derivative contracts.

(2)	Derivative contracts primarily consist of equity, interest rate and foreign exchange contracts.

(3)	The amounts of collaterals held in connection with standby letters of credit and other guarantees as of March 31, 2020 was ¥nil millio n .

(4)

As of March 31, 2021, primarily related to a certain sponsored repo program where Nomura guarantees to a 3rd party clearinghouse the payment of its clients’ obligations. Our exposure under this guarantee is minimized through effectively obtainingcollaterals whose amount is approximately equal to the maximum potential payout of the guarantee.

Maturity information on derivative contracts and standby letters of credit and other guarantees


	Millions of yen
	Carrying value		Maximum potential payout/Notional
			Total		Years to Maturity
			Total		Less than 1 year		1 to 3 years		3 to 5 years		More than 5 years
Derivative contracts	¥	5,207,911	¥	322,635,226	¥	88,433,903	¥	73,065,497	¥	49,763,383	¥	111,372,443
Standby letters of credit and other guarantees		—		206,072		174,864		11,722		281		19,205