SIX SIS Ltd – Interim Financial Statements 2026 Olten; YoY rise in profit

SIX SIS Ltd – Interim Financial Statements 2026 Olten; YoY rise in profit

Annual Report 2026 - Interim Financial Statements 2026 SIX SIS Ltd

Interim Financial Statements June 30, 2026 SIX SIS Ltd

SIX SIS Ltd – Interim Financial Statements 2026 2 Interim Balance Sheet CHF 1,000 30/06/2026 31/12/2025 Assets Liquid assets 736,042 746,977 Amounts due from banks 700,820 548,413 thereof custodians 561,402 401,040 Amounts due from securities financing transactions 1,996,324 1,836,653 Amounts due from customers 1,641 25,637 Positive replacement values of derivative financial instruments 9,700 1,477 Financial investments 102 1,173 Accrued income and prepaid expenses 10,946 17,445 Participations 1,004 1,004 Tangible fixed assets 57,103 61,175 Other assets 247,337 187,142 Total assets 3,761,019

3,427,095

Liabilities and equity Amounts due to banks 2,351,645 2,173,343 thereof collaterals 876,230 558,313 Liabilities from securities financing transactions 243,130 101,438 Amounts due to customers 425,499 421,399 Negative replacement values of derivative financial instruments 4,319 1,348 Accrued expenses and deferred income 11,472 15,126 Other liabilities 302,732 239,854 Total liabilities 3,338,797

2,952,507

Share capital 26,000 26,000 Statutory reserves Tax-exempt capital contribution reserve 52,736 52,736 Statutory retained earnings 18,300 18,300 Voluntary reserves Other voluntary reserves 235,100 235,100 Retained earnings 25,452 25,299 Profit for the period 64,634 117,153 Total equity 422,223 474,588 Total liabilities and equity 3,761,019 3,427,095

SIX SIS Ltd – Interim Financial Statements 2026 3 Interim Income Statement CHF 1,000 01/01–30/06/2026 01/01–30/06/2025 Interest and discount income 26,936 27,394 Interest expenses -2,993 -2,212 Gross result from interest operations 23,943 25,182 Changes in value adjustments for default risks – – Result from interest operations 23,943

25,182

Commission income from clearing & settlement 79,487 72,060 Commission expenses from clearing & settlement -31,935 -29,703 Commission income from other services 81,271 72,339 Result from commission business and services 128,823

114,696

Result from trading activities and from FV option 420

1,133 Other ordinary income 3,054 3,286 Result from other ordinary activities 3,054 3,286

Personnel expenses -22,953 -19,578 General and administrative expenses -61,866 -58,740 Operating expenses -84,819

-78,318 Changes in value adjustments on participations and depreciation of tangible assets -6,448 -2,412 Changes to provisions and other value adjustments, and losses 29 -37 Operating result 65,003

63,530

Taxes -368 -10,515 Profit for the period 64,634 53,015

SIX SIS Ltd – Interim Financial Statements 2026 4 Statement of Changes in Equity CHF 1,000 Share capital Statutory reserves Voluntary reserves Profit for the period/year Total From capital contributions From retained earnings Other voluntary reserves Retained earnings 1 January 2026

26,000 52,736 18,300 235,100 25,299 117,153 474,588 Appropriation of profit 117,153 -117,153 – Dividends -117,000 -117,000 Profit for the period 64,634 64,634 30 June 2026 26,000

52,736

18,300

235,100 25,452

64,634

422,223 1 January 2025 26,000 5,000 18,300 235,100 25,291 121,407 431,099 Appropriation of profit 121,407 -121,407 – Dividends -121,400 -121,400 Merger 47,736 47,736 Profit for the year 117,153 117,153 31 December 2025 26,000 52,736 18,300 235,100 25,299 117,153 474,588

SIX SIS Ltd – Interim Financial Statements 2026 5 SIX SIS Ltd Baslerstrasse 100 P.O. Box CH-4601 Olten www.six-group.com/securities-services © SIX Group Ltd, 08. 2026