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The $60 Billion Opportunity: Why Investors are Betting on the Whale Model for Security Deposits

The Largest “Junk Fee” in Housing That No One Is Talking About

The "S" in ESG: Why Security Deposits Are Your Unused Social Impact Lever

Recent Articles

The Security Deposit, Reimagined: Whale Wins Shark Tank Competition

April 20, 2025

Whale won the NRHC Shark Tank competition for its "win-win" model that turns stagnant security deposits into high-yield, FDIC-insured assets. This SEC-registered platform eliminates landlord work while allowing renters to earn interest on their security deposit.

The 2025 SFR Outlook: Why Modern Tech Stacks are Prioritizing Financial Integrity

March 1, 2025

Whale’s secure, automated platform addresses 2025 SFR priorities by combatting fraud through KYC verification and eliminating manual escrow risks. Deep integrations and a high-yield resident financial amenity allows operators to scale efficiently while boosting loyalty and portfolio profitability.

Whale Stackpoint partnership future

Scaling Security Deposit Innovation: The Engineering Behind Whale’s High-Yield Model

February 5, 2025

Building Whale required a secure, compliant foundation beyond simple banking "wrappers." Through a strategic partnership with Stackpoint, Whale accelerated development, creating a platform with deep PMS integration and automated regulatory logic that eliminates administrative burdens and ensures high-yield security.

Whale Tackles the Age-Old Security Deposit Problem with a Fresh Fintech Fix

December 5, 2024

Whale is reimagining the $45B rental market by replacing stagnant deposits with "lockable" high-yield savings accounts. This model provides landlords with guaranteed security while allowing renters to earn interest and access funds instantly at move-out, creating a new real estate category.

Whale Empowers 44 Million Renters to Build Wealth and Achieve Homeownership

November 15, 2024

Whale transforms the $45 billion security deposit market by allowing renters to earn interest on their deposits via high-yield accounts. This fintech solution simplifies administrative burdens for landlords while helping millions of Americans build wealth and accelerate their path to homeownership.

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© 2026 Build Whale, Inc.
332 S Michigan Ave Suite #121-2234
Chicago, IL 60604

Build Whale, Inc. ("Whale") is a Registered Investment Adviser with the U.S. Securities & Exchange Commission. All funds are held by Alpaca Securities LLC ("Alpaca Securities"), member FINRA/SIPC. Registration does not imply a certain level of skill or training. Information presented is for educational purposes only and does not intend to make an offer or solicitation for the sale or purchase of any securities. Whale’s website and its associated links offer news, commentary, and generalized research, not personalized investment advice. Nothing on this website should be interpreted to state or imply that past performance is an indication of future performance. All investments involve risk and unless otherwise stated, are not guaranteed.  The rates of interest paid by each Program Bank will differ and are subject to change beyond our control. Whale does not guarantee that any Client will receive a specified average or composite interest rate on funds invested through the program. Be sure to consult with a tax professional before implementing any investment strategy.

Whale is not a landlord, an affiliate of the landlord, or an agent of the landlord.