Form 425

Filed by CME Group Inc. pursuant

to Rule 425 under the Securities Act of 1933, as amended, and

deemed filed pursuant to Rule 14a-12 under the Securities

Exchange Act of 1934, as amended.

Subject Company: NYMEX Holdings, Inc.

Subject Company’s Commission File No.: 001-33149


Investor Presentation
March 17, 2008


2
Discussion of Forward-Looking Statements
Statements in this presentation that are not historical facts are forward-looking statements. These statements are not guarantees of future performance and involve risks, uncertainties
and
assumptions
that
are
difficult
to
predict.
Therefore,
actual
outcomes
and
results
may
differ
materially
from
what
is
expressed
or
implied
in
any
forward-looking
statements.
Among
the factors that might affect our performance are: our ability to successfully integrate the businesses of CME Group and NYMEX Holdings, including the fact that such integration may
be more difficult, time consuming or costly than expected and revenues following the merger may be lower than expected; increasing competition by foreign and domestic entities,
including increased competition from new entrants into our markets and consolidation of existing entities; our ability to keep pace with rapid technological developments, including our
ability to complete the development and implementation of the enhanced functionality required by our customers; our ability to continue introducing competitive new products and
services on a timely, cost-effective basis, including through our electronic trading capabilities, and our ability to maintain the competitiveness of our existing products and services; our
ability to adjust our fixed costs and expenses if our revenues decline; our ability to continue to generate revenues from our processing services provided to third parties; our ability to
maintain
existing
customers
and
attract
new
ones;
our
ability
to
expand
and
offer
our
products
in
foreign
jurisdictions;
changes
in
domestic
and
foreign
regulations;
changes
in
government policy, including policies relating to common or directed clearing; the costs associated with protecting our intellectual property rights and our ability to operate our business
without violating the intellectual property rights of others; our ability to generate revenue from our market data that may be reduced or eliminated by the growth of electronic trading;
changes
in
our
rate
per
contract
due
to
shifts
in
the
mix
of
the
products
traded,
the
trading
venue
and
the
mix
of
customers
(whether
the
customer
receives
member
or
non-member
fees or participates in one of our various incentive programs) and the impact of our tiered pricing structure; the ability of our financial safeguards package to adequately protect us from
the credit risks of clearing members; changes in price levels and volatility in the derivatives markets and in underlying fixed income, equity, foreign exchange and commodities markets;
economic,
political,
geopolitical
and
market
conditions;
natural
disasters
and
other
catastrophes,
our
ability
to
accommodate
increases
in
trading
volume
and
order
transaction
traffic
without
failure
or
degradation
of
performance
of
our
systems;
our
ability
to
execute
our
growth
strategy
and
maintain
our
growth
effectively;
our
ability
to
manage
the
risks
and
control
the
costs
associated
with
our
acquisition,
investment
and
alliance
strategy;
our
ability
to
continue
to
generate
funds
and/or
manage
our
indebtedness
to
allow
us
to
continue
to
invest
in
our business; industry and customer consolidation; decreases in trading and clearing activity; the imposition of a transaction tax on futures and options on futures transactions; and the
seasonality of the futures business.  More detailed information about factors that may affect our performance may be found in our filings with the Securities and Exchange Commission,
including our most recent Annual Report on Form 10-K, which is available in the Investor Relations section of the CME Group Web site. We undertake no obligation to publicly update
any forward-looking statements, whether as a result of new information, future events or otherwise.
Additional Information
This material is not a substitute for the proxy statement/prospectus and any other documents CME Group and NYMEX Holdings intend
to file with the Securities and
Exchange Commission (SEC).  Investors and security holders are urged to read such proxy statement and any other such documents, when available, which will
contain
important
information
about
the
proposed
transaction.
The
prospectus/proxy
statement
and
other
documents
filed
or
to
be
filed
by
CME
Group
and
NYMEX
Holdings with the SEC are or will be, available free of charge at the SEC’s website (www.sec.gov) or from CME Group by directing a request to CME Group, 20
South Wacker
Drive, Chicago, IL 60606, Attention: Shareholder Relations, or from NYMEX Holdings by directing a request to World Financial Center, One North
End Avenue, New York, NY  10282-1101, Attention: Investor Relations.
CME Group, NYMEX Holdings and their respective directors, executive officers and other employees may be deemed to be participants in the solicitation of proxies
from the security holders of CME Group or NYMEX Holdings in connection with the proposed transaction.  Information about CME Group’s directors and executive
officers is available in CME Group’s proxy statement, dated March 15, 2007, for its 2007 annual meeting of stockholders, and information about NYMEX Holdings’
directors and executive officers is available in NYMEX Holdings’
proxy statement, dated April 9, 2007 for its 2007 annual meeting of shareholders.  Additional
information about the interests of potential participants will be included in the proxy statement/prospectus when it becomes available.  This document shall not
constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation
or sale would be unlawful prior to registration or qualification
under the securities laws of any such jurisdiction.  No offering of securities shall be made except by
means of a prospectus meeting the requirements of Section 10 of the U.S. Securities Act of 1933, as amended.


3
Compelling Transaction
Provides access to a full spectrum of commodity
products
Combines complementary product lines and
shared technologies
Enhances over-the-counter (OTC) capabilities
Expands NYMEX product growth opportunities by
leveraging CME Group’s global capabilities                    
(marketing, sales, distribution, relationships)
Creates operational, risk management and product
benefits for customers
Strategically
Attractive
Approximately $60 million in estimated
expense synergies
Potential growth opportunities
Enhances operating scale advantages
Expected to be accretive on a GAAP basis                      
within 12-18 months post close
Financially
Compelling


4
WTI ADV Comparison
CME Group Is the Best Partner for NYMEX
0
250
500
750
1,000
0
100
200
300
400
500
NYMEX on CME Globex
ADV
(contracts in thousands)
79
999
Q2
06
Q3
06
Q4
06
Q1
07
Q2
07
Q3
07
Q4
07
Q2
06
Q3
06
Q4
06
Q1
07
Q2
07
Q3
07
Q4
07
489
213
2.3X
ICE
(contracts in thousands)
NYMEX on CME Globex
ICE
6 consecutive
record quarters
Q1
08
Q1
08
Note:  Q108 ADV through March 14, 2008


5
Transaction Summary
Accretive to earnings on a GAAP basis 12 –
18 months after the closing 
Expected Accretion:
Terrence A. Duffy, Executive Chairman; Craig S. Donohue, CEO
Executive Management:
NYMEX is required to offer to purchase the 816 outstanding NYMEX
Class A memberships for
consideration not to exceed $500 million in the aggregate, or approximately $612,000 per membership.
NYMEX Class A Memberships:
Each NYMEX Holdings shareholder will receive the equivalent of:
-
0.1323 CME Group shares for each NYMEX Holdings share, and
-
$36.00 per share in cash per NYMEX Holdings share
Shareholders will be given the opportunity to elect to receive either cash or CME Group shares in
exchange for their NYMEX Holdings shares
-
Subject
to
pro
ration
so
that
the
aggregate
cash
amount
for
the
Transaction
is
equal
to
approximately
$3.4 billion or $36.00 times the number of outstanding NYMEX Holdings shares at closing
CME Group may choose to increase the cash amount if NYMEX Holdings shareholders elect to receive
more than $3.4 billion in cash, under certain circumstances
Consideration Mix:
4Q-2008 (subject to regulatory, CME Group shareholder, NYMEX Holding shareholder and NYMEX
member approvals)
Anticipated Closing:
$308 million
CME Group obligated to pay the same break-up fee in limited circumstances
Reciprocal Break-Up Fee:
$100.30 per share
(1)
Price Per Share:
CME Group to add 3 new directors from NYMEX Holdings
Board of Directors:
CME Group Shareholders: minimum of 81.4% (based on NYMEX Holdings shareholder elections)
NYMEX Holdings Shareholders: up to 18.6% (based on NYMEX Holdings shareholder elections)
Pro Forma Ownership:
Aggregate Consideration:
$9.5 billion
(1) Based on CME Group’s closing price of $486.05 on March 14, 2008


6
Expected Strategic Benefits
Substantial Benefits
Financially
Attractive
Increased
Diversification
Cost Synergies and
Growth
Opportunities
Worldwide
Partnerships
Enhanced OTC
Expertise
Global Growth
Customer
Benefits


7
Positioned to Drive Global Growth
CME Group will utilize its global capabilities and platform to
drive NYMEX growth
Experienced and deep management
Proven strategy to grow electronic markets
Global marketing and sales infrastructure, and brand
Global distribution and relationships
NYMEX’s established energy and metals expertise will help
fuel CME Group’s growth
NYMEX and COMEX brands well-known globally
Established OTC platform to strengthen CME Group’s OTC
commodity strategy
Energy and metals products –
enhancing long-term CME Group
growth opportunities


8
Positioned to Drive Global Growth
Annual
Global Energy Futures
Volume
Global Futures Volume
6-Year CAGR (2001 –
2007)
Global Energy Futures:  19%
CME Group CAGR:  27%
Source:  FIA
Note:  Futures volume only, not including options on futures
0
50
100
150
200
250
300
350
400
450
(contracts in millions)
83
425
98
99
00
01
02
03
04
05
06
07
Individual
Equities
Equity
Indexes
FX/Index
Metals
Energy
Ag
Commodities
Interest
Rates
9%
44%
24%
4%
4%
6%
9%
Goldman Sachs Commodity Index –
Weightings
Energy –
72%, Metals –
10%, Ag Commodities –
18%


9
Expected Customer Benefits
Single point of contact, expanded
futures and OTC product set
CME Group growth model will
increase customer trading
opportunities
Customer Service
Combination of financial
safeguards of CME Clearing
Reduce $15 million NYMEX
member firm equity holding
requirements to lower CME/CBOT
levels
Monetize memberships
Capital Efficiencies
Reduce monitoring and
compliance costs
Harmonize rules
Harmonization
Combined clearing development
Maintain electronic trading
efficiencies
Reduce back office connections
and other points of contact
Smaller back office staff
requirements
Operational Efficiencies
CME Group / NYMEX
Expected customer benefits include:
Increased liquidity across a range of products
Hundreds of millions in freed up capital
Approximately $25m in annual customer savings


10
Increased Diversification
CME Group Standalone 2007
Transaction Revenue Mix
NYMEX Standalone 2007
Transaction Revenue Mix
Pro Forma 2007
Transaction Revenue Mix
Source:  Company information.
Note: CME Group transaction revenue is pro forma for CBOT acquisition.
$1.77 billion
$.57 billion
$2.33 billion
Energy
22%
Notes, Bonds
& Other
20%
Equities
22%
Foreign
Exchange
6%
Commodities
& Other
8%
Metals
3%
Eurodollar
19%
Commodities
& Other
11%
Notes, Bonds
& Other
26%
Eurodollar
26%
Foreign
Exchange
8%
Equities
29%
Metals
11%
Energy
89%


11
Cost Synergy Opportunities
Cost synergies are primarily driven by consolidation across
Corporate areas and IT and Clearing platforms
Cost Synergies
(Approximately $60m)
50%
50%
Administrative
IT/Clearing/
Operations
NYMEX to adopt CME
Group clearing model
Consolidate NYMEX trading
floors from 2 to 1 at               
the current location in New
York City
Migrate NYMEX ClearPort
®
electronic trading and
clearing to Chicago


12
Business Opportunities
Leverage marketing and  
product development to increase
volumes and expand customer
base
Engage CME Group’s global
presence to expand customer
and energy product base
Apply CME Group Capabilities
Global Expansion
Growing NYMEX Markets
Advance OTC Clearing growth
through combined product suites
and
combined
clearing/ClearPort
®
capabilities
Example: Commodities
Utilize resources in selling
complementary products to
combined customer base
Examples: Weather products,
GSCI
OTC Growth
Cross Selling
Growing CME Group Markets
Apply CME Group
strategies to accelerate
market growth
CME Group / NYMEX


13
Combined OTC Expertise
With the addition of NYMEX, CME Group will have an expanded    
OTC presence in:
Energy
NYMEX
ClearPort
®
Interest Rates –
Swapstream, with cleared swaps to launch
shortly
FX
FXMarketSpace
The acquisition creates increased ability to serve OTC customers
in the agricultural commodities market
Cross selling opportunities exist with NYMEX’s OTC customer
base and CME Group’s commodity and alternative investment
products
Weather


14
Worldwide Partnerships
CME Globex access from over 80 countries
Six telecommunications hubs in Europe and Asia
New hubs planned in Seoul, Sao Paolo and Shanghai


15
Road Map to Completion
File Joint Proxy Statement/Prospectus with SEC
CME Group shareholder vote, NYMEX Holdings shareholder vote
and NYMEX member vote
Repurchase of at least 75 percent of NYMEX memberships
Regulatory approvals
Hart-Scott-Rodino (HSR)
Regulatory notifications
Commodity Futures Trading Commission
Notice filings required in certain foreign jurisdictions
Financing
The transaction is anticipated to close                        
during the fourth quarter 2008