Fiserv Completes StoneCastle Acquisition, Extending Insured Deposit, Liquidity and Digital Asset Solutions to Financial Institutions and Introducing Deposit Liquidity Options for Merchants

Disclosures

1 APY is effective as of April 1, 2026, and is earned on the first $1 million. Accounts with deposits between $1 million and $100 million will earn a blended rate. View rate tiers. Please contact us at keepcash@stonecastle.com or 833-342-2274 with questions or to request a blended rate calculator. Current yield and maximum deposit insurance coverage may be lower or higher than what is stated due to changes in market or business conditions. Past performance does not guarantee future results. Interest rate earned may vary based on the size of the account balance and the introducing party. KEEP yield is the APY (annual percentage yield) based on an APR (annual percentage rate). APY is a gross rate that may not reflect fee agreements with some advisor firms. Please contact StoneCastle for the most current yield and maximum deposit insurance coverage as they may have changed since the date of this information.

2 Liquidity is ordinarily available on a next business day basis. Same day deposit credit and next day liquidity withdrawals are subject to a 3:00 PM ET cut-off. Daily and monthly ACH withdrawal limits per account apply. There is no daily or monthly limit on wire withdrawals. Please carefully read the current Program Terms and Conditions for more complete information and the governing terms of the account. This can be found at stonecastle.keepcash.com.

3 Source: FDIC.gov, April 1, 2026.

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