Muriel Siebert & Co., a Wall Street broker-dealer managing approximately $20 billion in assets, has selected tZERO Group's end-to-end digital securities infrastructure to enter the tokenized securities market. The collaboration, announced June 29, 2026, provides Siebert with a regulated technology stack covering investor onboarding, compliance, issuance support, custody, secondary market infrastructure, and lifecycle management for digital securities.
The partnership underscores growing institutional interest in blockchain-based securities, as established financial firms seek compliant pathways into digital capital markets. tZERO's integrated platform allows Siebert to offer tokenized securities without building proprietary digital asset capabilities from scratch.
The first offering under this collaboration will be Streamex Ltd.'s GLDY, a gold-backed, yield-bearing tokenized security developed by Streamex Corp. The private placement, utilizing Rule 506(c) of Regulation D, targets accredited investors through Siebert's traditional brokerage services, supported by tZERO's regulated blockchain infrastructure.
"Traditional financial institutions increasingly recognize that tokenized securities require more than blockchain technology – they require turnkey regulated market infrastructure," said Alan Konevsky, Chairman and CEO of tZERO. "We built tZERO to provide that complete, independent foundation, enabling leading firms like Siebert to enter digital markets through a single, integrated platform that combines issuance, brokerage, custody, trading infrastructure and compliance."
John J. Gebbia, CEO of Siebert, emphasized the importance of regulation and trust: "Tokenized securities represent an important evolution in how investors and issuers can connect, but the opportunity only works when innovation is matched with regulation, transparency, and trust. Our relationship with tZERO gives us the infrastructure to enter this market with discipline, while building for where financial markets are headed."
tZERO's services include investor onboarding, identity verification and KYC, issuance support, broker-dealer services, custody, secondary market infrastructure, clearing and settlement, and transfer agent services. By leveraging this infrastructure, Siebert can offer digital securities capabilities while relying on an established, regulated technology stack built for blockchain-enabled capital markets.
The announcement further validates the trend of institutional adoption of tokenized securities infrastructure. tZERO, through its broker-dealer subsidiaries tZERO Digital Asset Securities and tZERO Securities, provides a comprehensive platform that addresses the complete lifecycle of tokenized securities, unlike point solutions that operate in closed-loop environments.
Siebert Financial Corp., the parent company, oversees approximately $20 billion in assets under management and serves retail, wealth management, and institutional clients. The partnership with tZERO represents a strategic move to expand into digital markets while maintaining regulatory compliance and operational discipline.
