XML 53 R33.htm IDEA: XBRL DOCUMENT v3.25.3

Financial assets (Tables)

3 Months Ended

Sep. 30, 2025

Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]

Schedule of Consolidated Balance Sheets Classification of Financial Instruments Carried at Fair Value

The following table presents the Group’s Condensed Consolidated Balance Sheets classification of financial assets carried at fair value:

(in USD thousands)
Financial assets						Balance Sheet Line						September 30, 2025												June 30, 2025
2030 Prepaid forward contract						Financial assets - Non current						$	267,600											$	83,117
2029 Prepaid forward contract						Financial assets - Non current						413,800												128,500
Total financial assets												$	681,400											$	211,617

Schedule of Effect of Financial Instruments in Statements of Operations and Comprehensive Income (Loss)

The following table presents the effect of financial assets on the Group’s Condensed Consolidated Statements of Operations and Comprehensive Income (Loss):

(in USD thousands)												Three Months Ended September 30,
Financial assets						Statement of Operations Line						2025						2024
2030 Prepaid forward contract						Unrealized gain (loss) on financial instruments						$	184,483					$	—
2029 Prepaid forward contract						Unrealized gain (loss) on financial instruments						285,300						—
Electricity financial asset						Realized (loss) on financial instruments						—						(4,215)
Total financial assets												$	469,783					$	(4,215)

Schedule of Valuation Techniques and Significant Unobservable Inputs to Measure Fair Value

The following tables show the valuation techniques used in measuring Level 2 fair values for the financial instruments in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss), as well as the significant unobservable inputs used as at September 30, 2025:

Fair Value Hierarchy Level			Asset Description			Valuation Technique			Significant Inputs
Level 2			2030 Prepaid forward contract			Analytical formula			Share price, risk free rate, dividend yield
Level 2			2029 Prepaid forward contract			Analytical formula			Share price, risk free rate, dividend yield
Level 2			Prepaid Electricity - Financial asset			Forward Price Approach			Forward Prices from OTC Global Holdings

The following table reconciles the movement in the fair value of the Capped Call Transactions:

(in USD thousands)						2030 Capped Call						2029 Capped Call						Total
Balance as at July 1, 2025						$	46,400					$	75,700					$	122,100
Unrealized gain (loss) recognized in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss)						81,200						111,100						192,300
Balance as at September 30, 2025						$	127,600					$	186,800					$	314,400

The following tables show the valuation techniques used in measuring Level 2 fair values for the Bitmain purchase option in the Condensed Consolidated Balance Sheets, as well as the significant unobservable inputs used as at September 30, 2025:

Fair Value Hierarchy Level			Asset Description			Valuation Technique			Significant Input
Level 2			Bitcoin purchase option			Monte Carlo simulation option pricing model and Black-Scholes option pricing model			Strike Bitcoin price, spot Bitcoin price, risk free rate, volatility

Schedule of Prepaid Forward Contract

The following table summarizes the key terms of the 2030 Prepaid Forward Contract and 2029 Prepaid Forward Contract (collectively, the “Prepaid Forward Transactions”):

2030 Prepaid Forward Contract

2029 Prepaid Forward Contract

Contractual expiration

August 15, 2030

February 15, 2030

Net proceeds used to purchase the contract (in thousands)

$

73,717

$

92,500

Aggregate number of ordinary shares underlying the contract

5,700,000

8,818,000

Pricing date of the ordinary shares underlying the contract

December 3, 2024

June 10, 2025

X

- Definition

Schedule Of Prepaid Forward Contract Terms

+ References

No definition available.

+ Details

Name:	iren_ScheduleOfPrepaidForwardContractTermsTableTextBlock
Namespace Prefix:	iren_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the amount of gains or losses for the period included in earnings or resulted in a change to net assets, have arisen from the use of significant unobservable inputs (level 3) to measure the fair value of assets, liabilities, and financial instruments classified in shareholders' equity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 102
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-102

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarningsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of assets measured at fair value measured on a recurring or nonrecurring basis. Includes, but is not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 101
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-101

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration