Related party transactions	12 Months Ended
Related party transactions	Mar. 31, 2026
Related Party Transactions [Abstract]
Related party transactions	24. Related party transactions Apart from transactions disclosed elsewhere in these consolidated financial statements, Nomura also makes loans to certain of its directors and other related parties. Outstanding loans to its directors and other related parties were not considered significant.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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