Siebert Financial Corp. Set to Join the Russell 3000 Index

Siebert Financial Corp. (Nasdaq: SIEB)
is pleased to announce it is set to join the broad-market Russell 3000®
Index at the conclusion of the Russell U.S. Indexes annual
reconstitution, effective after the U.S. market opens on June 25,
according to a preliminary list of additions posted on June 8, 2018.

Annual Russell U.S. Indexes reconstitution captures the 4,000 largest
U.S. stocks as of May 11, ranking them by total market capitalization.
Membership in the Russell 3000® Index, which remains in place
for one year, means automatic inclusion in the large-cap Russell 1000®
Index or small-cap Russell 2000® Index as well as the
appropriate growth and value style indexes. FTSE Russell determines
membership for its Russell U.S. Indexes primarily by objective,
market-capitalization rankings and style attributes.

Siebert Financial Corp. was founded in 1967 by Muriel F. Siebert, the
first woman to own a seat on the New York Stock Exchange (NYSE) and the
first to head one of its member firms, Muriel Siebert & Co., Inc. Muriel
Siebert was also a pioneer by transforming her firm into a discount
brokerage in 1975 on the first day the NYSE allowed members to negotiate

Gloria E. Gebbia, controlling shareholder and board member of Siebert
Financial Corp. said, “We are extremely pleased for Siebert Financial to
be included in the FTSE’s Russell 3000® list, and we look
forward to heightened visibility among the investing community. This
development marks another major milestone in the storied history of the
firm. It demonstrates the hard work and efforts of our team to increase
shareholder value while building a world-class institution dedicated to
serving client financial needs.”

Russell U.S. Indexes are widely used by investment managers and
institutional investors as the basis for index funds and as benchmarks
for active investment strategies. Approximately $9 trillion in assets
are benchmarked against Russell U.S. Indexes. Russell U.S. Indexes are
part of FTSE Russell, a leading global index provider.

For more information on the Russell 3000® Index and the
Russell U.S. Indexes reconstitution, go to the “Russell Reconstitution”
section on the FTSE
Russell website.

About Siebert Financial Corp.Siebert Financial is a holding
company that conducts its retail discount brokerage business through its
wholly-owned subsidiary, Muriel Siebert & Co., Inc. The firm became a
member of the NYSE in 1967, when Ms. Siebert became the first woman to
own a seat on the Exchange. In addition, in 2014 the Company began
business as a registered investment advisor through a wholly-owned
subsidiary, Siebert AdvisorNXT, Inc. Siebert Financial, based on Wall
Street in New York City, serves clients through its branch offices
located nationwide and globally online. https://www.siebertnet.com/

Siebert’s Cautionary note regarding forward-looking statements

Statements in this press release that are not statements of historical
or current fact constitute “forward looking statements” within the
meaning of the Private Securities Litigation Reform Act of 1995. Such
forward looking statements involve risks and uncertainties and known and
unknown factors that could cause the actual results of the Siebert
Financial Corp. (the “Company”) to be materially different from
historical results or from any future results expressed or implied by
such forward looking statements, including without limitation: changes
in general economic and market conditions; changes and prospects for
changes in interest rates; fluctuations in volume and prices of
securities; changes in demand for brokerage services; competition within
and without the brokerage business, including the offer of broader
services; competition from electronic discount brokerage firms offering
greater discounts on commissions than the Company; the prevalence of a
flat fee environment; limited trading opportunities; the method of
placing trades by the Company’s customers; computer and telephone system
failures; the level of spending by the Company on advertising and
promotion; trading errors and the possibility of losses from customer
non-payment of amounts due; other increases in expenses and changes in
net capital or other regulatory requirements. As a result of these and
other factors, the Company may experience material fluctuations in its
operating results on a quarterly or annual basis, which could materially
and adversely affect its business, financial condition, operating
results, and stock price, as well as other risks detailed in the
Company’s filings with the Securities and Exchange Commission (“SEC”).
Accordingly, investors are cautioned not to place undue reliance on any
such “forward-looking statements.” The Company undertakes no obligation
to update the information contained herein or to publicly announce the
result of any revisions to such “forward-looking statements” to reflect
future events or developments. An investment in the Company involves
various risks, including those mentioned above and those, which are
detailed from time to time in the Company’s SEC filings, copies of which
may be obtained from the Company or through the SEC’s website.

Notice to Investors

This communication is provided for informational purposes only and is
neither an offer to sell nor a solicitation of an offer to buy any
securities in the United States or elsewhere.

About FTSE RussellFTSE Russell is a leading global index
provider creating and managing a wide range of indexes, data and
analytic solutions to meet client needs across asset classes, style and
strategies. Covering 98% of the investable market, FTSE Russell indexes
offer a true picture of global markets, combined with the specialist
knowledge gained from developing local benchmarks around the world.

FTSE Russell index expertise and products are used extensively by
institutional and retail investors globally. Approximately $16.2
trillion is currently benchmarked to FTSE Russell indexes. For over 30
years, leading asset owners, asset managers, ETF providers and
investment banks have chosen FTSE Russell indexes to benchmark their
investment performance and create investment funds, ETFs, structured
products and index-based derivatives. FTSE Russell indexes also provide
clients with tools for asset allocation, investment strategy analysis
and risk management.

A core set of universal principles guides FTSE Russell index design and
management: a transparent rules-based methodology is informed by
independent committees of leading market participants. FTSE Russell is
focused on index innovation and customer partnership applying the
highest industry standards and embracing the IOSCO Principles. FTSE
Russell is wholly owned by London Stock Exchange Group.

For more information, visit www.ftserussell.com

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