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Y&O Holdings
Yoav Rubinstein leads Y&O Holdings, the Graves family office, managing over 50 direct commercial properties from Gallatin Gateway, Montana.
Y&O Holdings
Y&O Holdings manages the diversified assets of the Graves family, operating from a base in Gallatin Gateway, Montana. The office functions as the central investment vehicle for the family's legacy, with Yoav Rubinstein serving as President and primary investment lead, and Stephan Garden acting as Director and representative in property negotiations. The family's philanthropic activities are conducted through the William H. Graves Family Foundation, where trustees William P. Graves and Martha Graves Reese oversee grantmaking and charitable strategy. The firm's investment posture is concentrated in direct real estate ownership and private equity. Its disclosed portfolio includes at least 53 commercial properties spread across the United States, with confirmed holdings in Burleson, Texas (Gateway Station); Winston-Salem, North Carolina (3925 Oxford Station Way); Wichita Falls, Texas; and a mixed-use development in its home market of Bozeman and Gallatin Gateway, Montana under the name Blackwood Groves. The office also held a commercial mall property in Wichita Falls, Texas. Beyond real estate, the firm allocates to private equity and public markets, though specific fund commitments or direct company investments remain private. Operations are tightly held, with no public reporting on total assets under management, headcount, or aggregate deployment. The office maintains no known secondary locations outside Montana. The most recent verifiable activity concerns ongoing management of its national commercial real estate portfolio, with property-level transactions handled directly by Rubinstein and Garden. The foundation arm provides the family's public-facing presence, though its grantmaking scale is not publicly disclosed. What distinguishes Y&O Holdings structurally is its preference for direct, self-negotiated real estate acquisitions over blind-pool fund commitments—a posture common among single-family offices in the Mountain West that prioritize control and cash flow over gathering outside capital. The separation of investment operations under Rubinstein and Garden from the philanthropic governance under the Graves family trustees creates a clean architecture that avoids commingling charitable and for-profit assets.
General information
Firm type
Single Family Office
Year founded
—
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Gallatin Gateway
Corporate office
Gallatin Gateway, MT, United States
Principals
Yoav Rubinstein
President
Stephan Garden
Director
William P. Graves
Trustee, William H. Graves Family Foundation
Martha Graves Reese
Trustee, William H. Graves Family Foundation
Sector focus
Frequently asked questions
Who makes investment decisions at Y&O Holdings?
Yoav Rubinstein, as President, leads investment activity alongside Director Stephan Garden. Garden represents the office in real estate negotiations and property-level transactions. The two appear to operate with significant autonomy, making direct acquisition and disposition decisions on behalf of the Graves family.
What does the real estate portfolio consist of?
The disclosed portfolio includes over 50 commercial properties across multiple states. Confirmed holdings include Gateway Station in Burleson, Texas; 3925 Oxford Station Way in Winston-Salem, North Carolina; a Wichita Falls mall property; and Blackwood Groves, a mixed-use development in the Bozeman/Gallatin Gateway area of Montana. The portfolio spans retail, mixed-use, and commercial assets.
How is Y&O Holdings related to the William H. Graves Family Foundation?
The foundation operates as the philanthropic arm of the Graves family, with William P. Graves and Martha Graves Reese serving as trustees. Investment operations are managed separately by Rubinstein and Garden through Y&O Holdings. This separation keeps charitable assets and for-profit investment activity distinct.
Does Y&O Holdings invest through fund commitments or only directly?
The office allocates across private equity, real estate, and public markets according to its stated strategy. In real estate, the firm exhibits a strong preference for direct ownership, handling acquisitions and negotiations in-house rather than committing capital to external real estate funds. Whether its private equity allocation is executed through direct co-investments or third-party fund commitments is not publicly disclosed.
Does Y&O Holdings manage outside capital or only family assets?
Y&O Holdings functions strictly as a single-family office for the Graves family. There is no indication that the office accepts external investors, manages third-party capital, or operates as a multi-family office or registered investment advisor.
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