CONFIRMING STATEMENT





This Statement confirms that the undersigned has authorized and

designated each of Howard S. Yaruss, and C. Robert Quint to

execute and file on the undersigned's behalf all Forms 3, 4 and

5 (including any amendments thereto) that the undersigned may be

required to file with the United States Securities and Exchange

Commission as a result of the undersigned's ownership of or

transactions in securities of Radian Group Inc.  The authority

of each of Howard S. Yaruss and C. Robert Quint under this

Statement shall continue until the undersigned is no longer

required to file Forms 3, 4 or 5 with regard to the undersigned's

ownership of or transactions in securities of Radian Group Inc.,

unless earlier revoked in writing.  The undersigned acknowledges

that none of Howard S. Yaruss, C. Robert Quint or Radian Group,

Inc. is assuming any of the undersigned's responsibilities to

comply with Section 16 of the Securities Exchange Act of 1934.



Dated:   July 20, 2005



_Stephen Cooke /s/_________________________________

Stephen Cooke





POWER OF ATTORNEY



Known all by these presents, that the undersigned hereby constitutes

and appoints each of Howard S. Yaruss and C. Robert Quint, signing

singly, the undersigned's true and lawful attorney-in-fact to:



(1) executed for and on behalf of the undersigned, in the

undersigned's capacity as an officer and/or director of Radian

Group Inc. (the "Company"), Forms 3, 4, and 5 in accordance with

Section 16(a) of the Securities Exchange Act of 1934 and the rules

thereunder;



(2)  do and perform any and all acts for and on behalf of the

undersigned which may be necessary or desirable to complete and

execute any such Form 3,4 or 5 and timely file such form with the

United States Securities and Exchange Commission and any stock

exchange or similar authority; and



(3)  take any other action of any type whatsoever in connection

with the foregoing which, in the opinion of such attorney-in-fact,

may be of benefit to, in the best interest of, or legally required

by, the undersigned, it being understood that the documents executed

by such attorney-in-fact on behalf of the undersigned pursuant to

this Power of Attorney shall be in such form and shall contain such

terms and conditions as such attorney-in-fact may approve in such

attorney-in-fact's discretion.



The undersigned hereby grants to each such attorney-in-fact full

power and authority to do and perform any and every act and thing

whatsoever requisite, necessary or proper to be done in the

exercise of any of the rights and powers herein granted, as

fully to all intents and purposes as the undersigned might

or could do if personally present, with full power of

substitution or revocation, hereby ratifying and confirming

all that such attorney-in-fact, or such attorney-in-fact's

substitute or substitutes, shall lawfully do or cause to be done

by virtue of this Power of Attorney and the rights and powers

herein granted.  The undersigned acknowledges that the foregoing

attorneys-in-fact, in serving in such capacity at the request of

the undersigned, are not assuming, nor is the Company assuming,

any of the undersigned's responsibilities to comply with Section 16

of the Securities and Exchange Act of 1934.



The Power of Attorney shall remain in force and effect until the

undersigned is no longer required to file Form 3, 4 and 5 with respect

to the undersigned's holdings of and transactions in securities issued

by the company, unless earlier revoked by the undersigned in a signed

writing delivered to the foregoing attorneys-in-fact.



IN WITNESS WHEREOF, the undersigned has caused this Power to be

executed as of this 20th day of July, 2005.



_Stephen Cooke /s/____________________________________

Signature







Stephen Cooke___________________

Printed Name