8-K

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549


                                    FORM 8-K


                             Current Report Pursuant
                          to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


         Date of Report (Date of earliest event Reported): July 14, 2005

                                  EQUINIX, INC.
                       ----------------------------------
             (Exact Name of Registrant as Specified in its Charter)


          Delaware                   000-31293                77-0487526
 ---------------------------    ----------------------    ----------------------
(State or Other Jurisdiction   (Commission File Number)     (I.R.S. Employer
    of Incorporation)                                     Identification Number)


                                301 Velocity Way
                          Foster City, California 94404
                                 (650) 513-7000
    -------------------------------------------------------------------------
   (Addresses, including zip code, and telephone numbers, including area code,
                        of principal executive offices)


Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:
[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR
    230.425)
[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)
[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))
[ ] Pre-commencement  communications  pursuant to Rule 13e-4(c)  under the
    Exchange Act (17 CFR 240.13e-4(c))




Item 1.01. Entry Into A Material Definitive Agreement.

     On July 14, 2005, Equinix Operating Company,  Inc., a Delaware  Corporation
and wholly-owned subsidiary of Equinix, Inc. ("Equinix") entered into a sublease
with Verio,  Inc. for the  remaining  ten year term of lease on an existing data
center located at 350 East Cermak Rd.,  Chicago,  Il. Equinix intends to operate
the premises as a data center  consistent  with other  facilities they currently
lease. In addition to subleasing the premises, Equinix purchased the data center
infrastructure assets from Verio, Inc. for approximately $1,900,000.

Item 2.02. Results of Operations and Financial Condition

     The  information in Item 2.02 of this Current Report is being furnished and
shall not be deemed  "filed" for the  purposes  of Section 18 of the  Securities
Exchange Act of 1934, as amended,  or otherwise  subject to the  liabilities  of
that Section.  The  information in Item 2.02 of this Current Report shall not be
incorporated  by reference  into any  registration  statement or other  document
pursuant to the Securities Act of 1933, as amended, except as shall be expressly
set forth by specific reference in such filing.

     On July 18, 2005, the Company issued a press release which included updated
guidance for 2005. A copy of the press release is attached as Exhibit 99.1.

     Item 2.03. Creation of a Direct Financial Obligation or an Obligation Under
an Off-balance Sheet Arrangement of a Registrant

     *Please  refer to the July 14, 2005,  Equinix  sublease  regarding 350 East
Cermak Rd., Chicago, Il as disclosed in Item 1.01 above.

Item 9.01. Financial Statements and Exhibits

      (c) Exhibits.

      99.1 Press  Release of Equinix,  Inc.  dated July 18,  2005,  furnished
           in accordance with Item 2.02 of this Current Report on Form 8-K.






                                   SIGNATURES


     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.


                                                 EQUINIX, INC.


DATE:  July 18, 2005                              By:     /s/  RENEE F. LANAM
                                                         --------------------

                                                         Renee F. Lanam
                                                         Chief Financial Officer

EX-99.1

                                                                    Exhibit 99.1

   Equinix Expands Chicago Data Center Footprint with Acquisition of
                           Additional Space

   Company's Chicago Internet Data Center Has Become a Principal Hub
     for the Region's Growing Financial Trading Exchange Industry

   CHICAGO--(BUSINESS WIRE)--July 18, 2005--Equinix, Inc.
(Nasdaq:EQIX), the leading provider of network-neutral data centers
and Internet exchange services, today announced the acquisition of
additional data center space in the Chicago market to accommodate
strong growth from regional businesses, including leading companies in
the financial trading exchange industry.
   The new data center space is located in the Lakeside Technology
Center, the same facility as the company's existing Chicago Internet
Business Exchange(TM) (IBX(R)) center, and it will add approximately
107,000 square feet to the existing 140,000 square foot IBX. Acquired
through the purchase of assets and a sub-lease from Verio, Inc., the
built-out portion of the expansion adds space for 1,100 sellable
cabinets. The new space will offer direct access to the more than 60
networks and 120 enterprises and content companies already operating
within Equinix's Chicago IBX, a principal element of Equinix's value
proposition. Equinix intends to begin placing new customers in the
expanded space at the Chicago IBX in the first half of 2006.
   Chicago is one of Equinix's fastest growing markets, with 45
percent growth in revenues in fiscal year 2004. Driving much of this
growth has been Equinix's specialized data center and interconnection
service for the financial trading industry, which has made Equinix's
Chicago center an important hub in the IT infrastructure of electronic
trading operations. The service, Equinix Financial eXchange, provides
a convenient platform for banks, financial trading companies and
financial exchanges to interconnect with each other and with multiple
network service providers in order to execute financial transactions
as they migrate from floor trading operations to electronic trading
platforms. Some of the customers on the service include DBS, Inc.
(Deutsche Boerse), First Traders, LIFFE, Merrill Lynch, Nuveen
Investments, and Rosenthal Collins Group.
   Combined with the recently announced acquisition of a new data
center in the Silicon Valley, this expansion will increase Equinix's
global data center footprint to more than 1.6 million square feet,
solidifying Equinix's position as the leading provider of network-rich
hubs for the exchange of core network traffic.
   "A significant driver of today's expansion is the strong traction
with Chicago's financial trading exchange community, which has come to
rely on Equinix to support the growing IT infrastructure and
interconnection requirements of electronic exchanges," said Peter Van
Camp, CEO of Equinix. "This expansion in Chicago, combined with our
recent expansion in Silicon Valley, is an important contributor to
solidifying our market leadership position with the potential to
create a company that can generate annual revenues in excess of $500
million."
   The new space will feature a physical infrastructure that is
consistent with Equinix's industry-leading standards for security,
environmental control and power availability, and it will be
constructed to be accessible from the company's current Chicago IBX
center. Equinix intends to invest approximately $16.0 million to
"Equinize" the center to bring it up to Equinix's standards, of which
$4.0 to $7.0 million will be incurred in 2005. The majority of the
capital expenditures will be used to significantly upgrade the power
plant in order accommodate customers' needs for high-power density
installations, such as blade servers. As a result of the addition,
expansion capital expenditures for 2005 have increased to $21.0 to
$27.0 million from previous guidance of $17.0 to $20.0 million. All
other Equinix financial guidance provided on June 15, 2005, remains
unchanged.

   About Equinix

   Equinix is the leading global provider of network-neutral data
centers and Internet exchange services for enterprises, content
companies, systems integrators and network services providers. Through
the company's 15 Internet Business Exchange(TM) (IBX(R)) centers in
five countries, customers can directly interconnect with every major
global network and ISP for their critical peering, transit and traffic
exchange requirements. These interconnection points facilitate the
highest performance and growth of the Internet by serving as neutral
and open marketplaces for Internet infrastructure services, allowing
customers to expand their businesses while reducing costs.

   This press release contains forward-looking statements that
involve risks and uncertainties. Actual results may differ materially
from expectations discussed in such forward-looking statements.
Factors that might cause such differences include, but are not limited
to, the challenges of operating IBX centers and developing, deploying
and delivering Equinix services; a failure to receive significant
revenue from customers in recently-acquired data centers; competition
from existing and new competitors; the ability to generate sufficient
cash flow or otherwise obtain funds to repay outstanding indebtedness;
the loss or decline in business from our key customers and other risks
described from time to time in Equinix's filings with the Securities
and Exchange Commission. In particular, see Equinix's recent quarterly
and annual reports filed with the Securities and Exchange Commission,
copies of which are available upon request from Equinix. Equinix does
not assume any obligation to update the forward-looking information
contained in this press release.

   Equinix and IBX are registered trademarks of Equinix, Inc.
Internet Business Exchange is a trademark of Equinix, Inc.

    CONTACT: K/F Communications, Inc.
             David Fonkalsrud, 415-255-6506
             dave@kfcomm.com