FORM OF INVESTMENT SUB-ADVISORY AGREEMENT By and Among Thrivent Financial for Lutherans and Thrivent Series Fund, Inc. and Sectoral Asset Management Inc.

Exhibit (d)(18)

FORM OF INVESTMENT SUB-ADVISORY AGREEMENT

By and Among

Thrivent Financial for Lutherans

and

Thrivent Series Fund, Inc.

and

Sectoral Asset Management Inc.

INVESTMENT SUBADVISORY AGREEMENT, made as of the 30th day of April, 2008, (the “Effective Date”) by and among Thrivent Financial for Lutherans, a fraternal benefit society organized and existing under the laws of the State of Wisconsin (“Adviser”), Thrivent Series Fund, Inc., a corporation existing under the laws of the State of Minnesota (“Fund”), and Sectoral Asset Management Inc., a corporation organized and existing under the laws of Canada (“Sub-adviser”).

WHEREAS, Adviser has entered into an Investment Advisory Agreement dated as of the 10^th day of April, 2002 (“Advisory Agreement”) with the Fund, which is engaged in business as an open-end investment company registered under the Investment Company Act of 1940, as amended (“1940 Act”); and

WHEREAS, the Fund is authorized to issue shares of the Thrivent Partner Healthcare Portfolio (“Portfolio”), a separate series of the Fund; and

WHEREAS, Sub-adviser is engaged principally in the business of rendering investment management services and is registered as an investment adviser under the Investment Advisers Act of 1940, as amended (“Advisers Act”); and

WHEREAS, the Fund and Adviser desire to retain Sub-adviser as sub-adviser to furnish certain investment advisory services to Adviser and the Portfolio and Sub-adviser is willing to furnish such services.

NOW, THEREFORE, in consideration of the premises and mutual promises herein set forth, the parties hereto agree as follows:

Appointment. (A) Adviser hereby appoints Sub-adviser as its investment sub-adviser with respect to the Portfolio for the period and on the terms set forth in this Agreement, and (B) Sub-adviser hereby accepts such appointment and agrees to render the services herein set forth, for the compensation herein provided. Such appointment shall apply to such portion of the Fund’s assets as is allocated to the Sub-adviser by the Adviser from time to time in the sole discretion of the Adviser.

II	Additional Series. In the event that the Fund establishes one or more series of shares other than the Portfolio with respect to which Adviser desires to retain Sub-adviser to render investment advisory services hereunder, Adviser shall so notify Sub-adviser in

writing, indicating the advisory fee to be payable with respect to the additional series of shares. If Sub-adviser is willing to render such services on the terms provided for herein, it shall so notify Adviser in writing, whereupon such series shall become a Portfolio hereunder.

III.	Duties of Sub-adviser.

Sub-adviser is hereby authorized and directed and hereby agrees to (i) furnish continuously an investment program for the Portfolio, and (ii) determine from time to time what investments shall be purchased, sold or exchanged and what portion of the assets of the Portfolio shall be held uninvested. Sub-adviser shall perform these duties subject always to (1) the overall supervision of Adviser and the Board of Directors of the Fund (the “Board”), (2) the Fund’s Articles of Incorporation and By-laws (as defined below), as amended from time to time and as have been provided to the Sub-adviser, (3) the stated investment objectives, policies and restrictions of the Portfolio as set forth in the Fund’s then current Registration Statement (as defined below), (4) any additional policies or guidelines established by Adviser or Board that have been furnished in writing to Sub-adviser, (5) applicable provisions of law, including, without limitation, all applicable provisions of the 1940 Act and the rules and regulations thereunder, and (6) the provisions of the Internal Revenue Code of 1986, as amended (the “Code”) applicable to “regulated investment companies” (as defined in Section 851 of the Code), as amended from time to time. In accordance with Section VII, Sub-adviser shall arrange for the execution of all orders for the purchase and sale of securities and other investments for the Portfolio’s account and will exercise full discretion and act for the Fund in the same manner and with the same force and effect as the Fund might or could do with respect to such purchases, sales, or other transactions, as well as with respect to all other things necessary or incidental to the furtherance or conduct of such purchases, sales, or other transactions, including without limitation, management of cash balances in the Portfolio.

Sub-adviser shall have no responsibility with respect to maintaining custody of the Portfolio’s assets. Sub-adviser shall affirm security transactions with central depositories and advise the custodian of the Portfolio (“Custodian”), as identified in the Fund’s Registration Statement, or such depositories or agents as may be designated by Custodian and Adviser promptly of each purchase and sale of a Portfolio security, specifying the name of the issuer, the description and amount or number of shares of the security purchased, the market price, the commission and gross or net price, the trade date and settlement date and the identity of the effecting broker or dealer. Sub-adviser shall from time to time provide Custodian and Adviser with evidence of authority of its personnel who are authorized to give instructions to Custodian.

Unless Adviser advises Sub-adviser in writing that the right to vote proxies has been expressly reserved to Adviser or the Fund or otherwise delegated to another

party, Sub-adviser shall exercise voting rights incident to any securities held in the Portfolio without consultation with Adviser or Fund and in accordance with the Sub-adviser’s proxy voting policy, provided that Sub-adviser will follow any written instructions received from Adviser or Fund with respect to voting as to particular issues. Sub-adviser shall further respond to all corporate action matters incident to the securities held in the Portfolio including, without limitation, proofs of claim in bankruptcy and class action cases, provided that the Custodian has agreed to notify the Sub-adviser about all such corporate action matters in a timely manner and in writing.

Upon request of Custodian and/or Fund, Sub-adviser shall provide assistance in connection with the determination of the fair value of securities in the Portfolio for which market quotations are not readily available.

In the performance of its duties hereunder, Sub-adviser is and shall be an independent contractor and except as expressly provided for herein or otherwise expressly provided or authorized shall have no authority to act for or represent the Portfolio or the Fund in any way or otherwise be deemed to be an agent of the Portfolio, the Fund or of Adviser.

The Sub-adviser shall have no responsibility under this Agreement with respect to the management of assets of the Portfolio other than the portion of the Portfolio’s assets with respect to which the Sub-Adviser provides investment advice.

The Sub-adviser is prohibited from consulting with any other sub-adviser of the Portfolio, if any, or the subadviser to any other investment company (or separate series of an investment company) managed by the Adviser concerning the Portfolio’s transactions in securities or other assets, except for the purpose of complying with the conditions of Rule 12d3-1 (a) and (b) under the 1940 Act.

IV.

Compensation. For the services provided pursuant to this Agreement, Sub-adviser shall receive an investment management fee computed as set forth in Schedule I attached hereto and incorporated herein by reference. The management fee shall be payable monthly in arrears to Sub-adviser on or before the 10th day of the next succeeding calendar month and shall be calculated based on the average daily net assets of the Portfolio during the month to which the payment relates. If this Agreement becomes effective or terminates before the end of any month, the investment management fee for the period from the effective date to the end of such month or from the beginning of such month to the date of termination, as the case may be, shall be prorated according to the proration which such period bears to the full month in which such effectiveness or termination occurs.

Expenses. During the term of this Agreement, Sub-adviser will bear all expenses incurred by it (including taxes) in the performance of its duties hereunder, other than those expenses specifically assumed by the Fund hereunder. The Fund shall assume and shall pay all brokers’ and underwriting commissions chargeable to the Fund in connection with the securities transactions to which the Portfolio is a party.

VI.	Duties of Adviser. Adviser has furnished Sub-adviser with copies of each of the following documents and will furnish to Sub-adviser at its principal office all future amendments and supplements to such documents, if any, as soon as practicable after such documents become available:

(1)

The Articles of Incorporation of the Fund, as filed with the State of Minnesota, as in effect on the date hereof and as amended from time to time (“Declaration”);

(2)

The by-laws of the Fund as in effect on the date hereof and as amended from time to time (“By-Laws”);

(3)

Certified resolutions of the Board authorizing the appointment of Adviser and Sub-adviser and approving the form of the Advisory Agreement and this Agreement;

(4)

The Fund’s Registration Statement under the 1940 Act and the Securities Act of 1933, as amended (the “1933 Act”) on Form N-1A, as filed with the Securities and Exchange Commission (“SEC”) relating to the Portfolio and its shares and all amendments thereto (“Registration Statement”);

(5)

The Notification of Registration of the Fund under the 1940 Act on Form N-8A as filed with the SEC and any amendments thereto;

(6)

The Fund’s most recent prospectus (the “Prospectus”); and

(7)

Copies of reports made by the Fund to its shareholders.

Adviser shall furnish Sub-adviser with any further documents, materials or information that Sub-adviser may reasonably request to enable it to perform its duties pursuant to this Agreement.

VII.	Fund Transactions.

Sub-adviser agrees that, in executing Portfolio transactions and selecting brokers or dealers, if any, it shall use its best efforts to seek on behalf of the Portfolio the best overall terms available. In assessing the best overall terms available for any transaction, Sub-adviser shall consider all factors it deems relevant, including the breadth of the market in and the price of the security, the financial condition and execution capability of the broker or dealer, and the reasonableness of the commission, if any, with respect to the specific transaction and on a continuing basis. In evaluating the best overall terms available, and in selecting the broker or dealer, if any, to execute a particular transaction, Sub-adviser may also consider

the brokerage and research services (as those terms are defined in Section 28(e) of the Securities Exchange Act of 1934, as amended (“1934 Act”)) provided to Sub-adviser with respect to the Portfolio and/or other accounts over which Sub-adviser exercises investment discretion. Except to the extent prohibited or limited by law or regulation, Sub-adviser may, in its discretion, agree to pay a broker or dealer that furnishes such brokerage or research services a higher commission than that which might have been charged by another broker-dealer for effecting the same transactions, if Sub-adviser determines in good faith that such commission is reasonable in relation to the brokerage and research services provided by the broker or dealer, viewed in terms of either that particular transaction or the overall responsibilities of Sub-adviser with respect to the accounts as to which it exercises investment discretion (as such term is defined under Section 3(a)(35) of the 1934 Act). Sub-adviser shall, upon request from Adviser, provide such periodic and special reports describing any such brokerage and research services received and the incremental commissions, net price or other consideration to which they relate.

In no instance will Portfolio securities be purchased from or sold to Sub-adviser, or any affiliated person thereof, except in accordance with the federal securities laws and the rules and regulations thereunder.

Sub-adviser may buy securities for the Portfolio at the same time it is selling such securities for another client account and may sell securities for the Portfolio at the time it is buying such securities for another client account. In such cases, subject to applicable legal and regulatory requirements, and in compliance with such procedures of the Fund as may be in effect from time to time, Sub-adviser may effectuate cross transactions between the Portfolio and such other account if it deems this to be advantageous. Adviser and the Fund acknowledge that, in the event of any such cross transaction, Subadviser may have a potentially conflicting division of loyalties and responsibilities regarding the Portfolio and such other client account, and each of Adviser and the Fund consents to any such cross transaction. THE FOREGOING CONSENT TO CROSS TRANSACTIONS EFFECTUATED BY SUB-ADVISER MAY BE REVOKED AT ANY TIME BY ADVISER OR THE FUND BY WRITTEN NOTICE TO SUBADVISER.

On occasions when Sub-adviser deems the purchase or sale of a security to be in the best interest of the Fund as well as other clients of Sub-adviser, Sub-adviser, to the extent permitted by applicable laws and regulations, may, but shall be under no obligation to, aggregate the securities to be purchased or sold to attempt to obtain a more favorable price or lower brokerage commissions and efficient execution. In such event, allocation of the securities so purchased or sold, as well as the expenses incurred in the transaction, will be made by Sub-adviser in the manner Sub-adviser considers to be the most equitable and consistent with its fiduciary obligations to the Fund and to its other clients.

VIII.

Ownership of Records. Sub-adviser shall maintain all books and records required to be maintained by Sub-adviser pursuant to the 1940 Act and the rules and regulations promulgated thereunder with respect to transactions on behalf of the Fund. In compliance with the requirements of Rule 31a-3 under the 1940 Act, Sub-adviser hereby agrees (A) that all records that it maintains for the Fund are the property of the Fund, (B) to preserve for the periods prescribed by Rule 31a-2 under the 1940 Act any records that it maintains for the Fund and that are required to be maintained by Rule 31a-1 under the 1940 Act, and (C) to surrender promptly to the Fund any records that it maintains for the Fund upon request by the Fund; provided, however, Sub-adviser may retain copies of such records.

IX.	Reports and Meetings.

Sub-adviser shall furnish to the Board or Adviser, or both, as appropriate, such information, reports, evaluations, analyses and opinions as are required by law or that the Board or Adviser, as appropriate, may reasonably require, including, without limitation: compliance reporting and certification with respect to:

Affiliated Brokerage Transactions

Affiliated Underwritings

Cross Transactions

Prospectus Compliance

Code of Ethics

Soft Dollar Usage

Price Overrides/Fair Valuation Determinations

Sub-adviser shall make available in person to the Board and to Adviser personnel of Sub-adviser as the Board or Adviser may reasonably request to review the investments and the investment program of the Portfolio and the services provided by Sub-adviser hereunder.

Services to Other Clients. Nothing contained in this Agreement shall limit or restrict (i) the freedom of Sub-adviser, or any affiliated person thereof, to render investment management and corporate administrative services to other investment companies, to act as investment manager or investment counselor to other persons, firms, or corporations, or to engage in any other business activities, or (ii) the right of any director, officer, or employee of Sub-adviser, who may also be a director, officer, or employee of the Fund, to engage in any other business or to devote his or her time and attention in part to the management or other aspects of any other business, whether of a similar nature or a dissimilar nature.

XI.

Sub-adviser’s Use of the Services of Others. Sub-adviser may, at its cost, employ, retain, or otherwise avail itself of the services or facilities of other persons or organizations for the purpose of providing Sub-adviser or the Fund or Portfolio, as appropriate, with such statistical and other factual information, such advice regarding economic factors and trends, such advice as to occasional transactions in specific

securities, or such other information, advice, or assistance as Sub-adviser may deem necessary, appropriate, or convenient for the discharge of its obligations hereunder or otherwise helpful to the Fund or the Portfolio, as appropriate, or in the discharge of Sub-adviser’s overall responsibilities with respect to the other accounts that it serves as investment manager or counselor.

XII.

Liability of Sub-adviser; Indemnification. Neither Sub-adviser nor any of its officers, directors, or employees, nor any person performing executive, administrative, trading, or other functions for the Fund, the Portfolio (at the direction or request of Sub-adviser) or Sub-adviser in connection with Sub-adviser’s discharge of its obligations undertaken or reasonably assumed with respect to this Agreement (collectively, “Related Persons”), shall be liable for (i) any error of judgment or mistake of law or for any loss suffered by the Fund or Portfolio or (ii) any error of fact or mistake of law contained in any report or data provided by Sub-adviser, except for any error, mistake or loss resulting from willful misfeasance, bad faith, or gross negligence in the performance by Sub-adviser or such Related Person of Sub-adviser’s duties on behalf of the Fund or Portfolio or from reckless disregard by Sub-adviser or any such Related Person of the duties of Sub-adviser pursuant to this Agreement (each of which is referred to as a “Culpable Act”).

Notwithstanding the foregoing, any stated limitations on liability shall not constitute a waiver or limitation of any rights which the Adviser or the Fund may have under any applicable federal securities laws, and shall not relieve Sub-adviser from any responsibility or liability for errors committed by Sub-adviser in connection with the execution of trade orders.

Subadviser shall indemnify Adviser and its Related Persons and hold them harmless from and against any and all losses, damages, costs, charges, reasonable counsel fees, payments, expenses and liabilities (collectively, “Damages”) arising directly or indirectly out of or in connection with the performance of services by Subadviser or its Related Persons hereunder to the extent such Damages result from a Culpable Act of Subadviser or its Related Persons.

Adviser shall indemnify Subadviser and its Related Persons from and against any Damages arising directly or indirectly out of or in connection with the performance of services by Adviser or its Related Persons under this Agreement or the Advisory Agreement, in each case, to the extent such Damages result from any willful misfeasance, bad faith, gross negligence or reckless disregard of its duties by Adviser or any of its Related Persons.

XIII.

Representations of Sub-adviser. Sub-adviser represents, warrants, and agrees as follows:

Sub-adviser (i) is registered as an investment adviser under Advisers Act and will continue to be so registered for so long as this Agreement remains in effect; (ii) is not prohibited by the 1940 Act or the Advisers Act from performing the services contemplated by this Agreement; (iii) has met, and will continue to meet for so

long as this Agreement remains in effect, any other applicable federal or state requirements, or the applicable requirements of any regulatory or industry self-regulatory agency, necessary to be met in order to perform the services contemplated by this Agreement; (iv) has the authority to enter into and perform the services contemplated by this Agreement; and (v) will immediately notify Adviser of the occurrence of any event that would disqualify Sub-adviser from serving as an investment adviser of an investment company pursuant to Section 9(a) of the 1940 Act or otherwise.

Sub-adviser has adopted a written code of ethics (the “Sub-adviser Code”) complying with the requirements of Rule 17j-1 under the 1940 Act, as may be amended from time to time, and, has provided the Adviser and the Fund with a copy of the Sub-adviser Code, together with evidence of its adoption. The Sub-adviser certifies that it has adopted procedures reasonably necessary to prevent “access persons” as defined in Rule 17j-1 (“Access Persons”) from violating the Sub-adviser Code. On a quarterly basis, Sub-adviser will either: (i) certify to Adviser that Sub-adviser and its Access Persons have complied with the Sub-adviser Code with respect to the Portfolio, or (ii) identify any material violations of the Sub-adviser Code which have occurred with respect to the Portfolio. In addition, Sub-adviser will furnish at least annually to Adviser and the Board a written report that (a) describes any issues arising under the Sub-adviser Code since the last report to the Board, including, but not limited to, information about material violations of the Sub-adviser Code with respect to the Fund and sanctions imposed in response to the material violations and (b) certifies that the Sub-adviser has adopted procedures reasonably necessary to prevent Access Persons from violating the Sub-adviser Code.

Sub-adviser has provided Adviser and the Fund, and Adviser and the Fund acknowledge having received, a copy of Sub-adviser’s Form ADV as most recently filed with the SEC and, if not so filed, the most recent Part 2 of its Form ADV, and Sub-adviser will, promptly after filing any amendment to its Form ADV with the SEC, and, if not so filed, any amendment to Part 2 of its Form ADV, furnish a copy of such amendment to Adviser and the Fund.

Sub-adviser has provided Adviser and the Fund, and Adviser and the Fund acknowledge having received, a description or copy of Sub-adviser’s policies and procedures for voting proxies relating to client securities and information concerning how they can obtain information concerning how Sub-adviser has voted proxies relating to securities held by the Portfolio.

XIV.

Compliance with Applicable Regulations. In anticipation of performing its duties hereunder, Sub-adviser has established compliance procedures (copies of which have been provided to Adviser, receipt of which is hereby acknowledged by Adviser, and which are subject to review and approval by Adviser and the Board) reasonably designed to ensure compliance at all times with all applicable provisions of the 1940 Act and the Advisers Act, and any rules and regulations adopted thereunder; Subchapter M of the

Code; the provisions of the Registration Statement; the provisions of the Declaration and the By-Laws of the Fund, as the same may be amended from time to time; and any other applicable provisions of state, federal or foreign law.

XV.

Term of Agreement. This Agreement shall become effective with respect to the Portfolio on the Effective Date and, with respect to any additional Portfolio, on the date of receipt by the Adviser of notice from the Sub-adviser in accordance with Section II hereof that the Sub-adviser is willing to serve as Sub-adviser with respect to such Portfolio. Unless sooner terminated as provided herein, this Agreement shall continue in effect for two years from the Effective Date with respect to the Portfolio and, with respect to each additional Portfolio, for two years from the date on which this Agreement becomes effective with respect to such Portfolio. Thereafter, this Agreement shall continue in effect from year to year, with respect to the Portfolio, subject to the termination provisions and all other terms and conditions hereof, so long as (a) such continuation shall be specifically approved at least annually (i) by either the Board, or by vote of a majority of the outstanding voting securities of the Portfolio; (ii) in either event, by the vote of a majority of the Directors of the Board who are not interested persons of any party to this Agreement, cast in person at a meeting called for the purpose of voting on such approval; and (b) Sub-adviser shall not have notified the Fund, in writing, at least 60 days prior to such approval that it does not desire such continuation. Sub-adviser shall furnish to the Fund, promptly upon its request, such information as may reasonably be necessary to evaluate the terms of this Agreement or any extension, renewal, or amendment hereof.

XVI.

Termination of Agreement. Notwithstanding the foregoing, this Agreement may be terminated with respect to a Portfolio at any time, without the payment of any penalty, by vote of the Board or by a vote of a majority of the outstanding voting securities of such Fund on 60 days’ prior written notice to Sub-adviser. This Agreement may also be terminated by Adviser (i) with respect to a Portfolio, on 60 days’ prior written notice to Sub-adviser, without the payment of any penalty; (ii) upon material breach by Sub-adviser of any of the representations and warranties set forth in Section XIII of this Agreement, if such breach shall not have been cured within a 20-day period after notice of such breach; or (iii) if Sub-adviser becomes unable to discharge its duties and obligations under this Agreement. Sub-adviser may terminate this Agreement with respect to a Portfolio at any time, without the payment of any penalty, on 60 days’ prior notice to Adviser. This Agreement shall terminate automatically in the event of its “assignment,” as such term is defined in the 1940 Act, or upon termination of the Advisory Agreement. Any approval, amendment, or termination of this Agreement with respect to a Portfolio by the holders of a majority of the outstanding voting securities of such Portfolio shall be effective to continue, amend or terminate this Agreement with respect to any such Portfolio notwithstanding (i) that such action has not been approved by the holders of a majority of the outstanding voting securities of any other Portfolio affected thereby, and/or (ii) that such action has not been approved by the vote of a majority of the outstanding voting securities of the Fund, unless such action shall be required by any applicable law or otherwise.

XVII.

Amendments, Waivers, etc. Provisions of this Agreement may be changed, waived, discharged or terminated only by an instrument in writing signed by the party against which enforcement of the change, waiver, discharge or termination is sought. This Agreement (including any exhibits hereto) may be amended at any time by written mutual consent of the parties, subject to the requirements of the 1940 Act and rules and regulations promulgated and orders granted thereunder.

XVIII.

Notification. Sub-adviser will notify Adviser promptly of any change in the personnel of Sub-adviser with responsibility for making investment decisions in relation to the Portfolio or who have been authorized to give instructions to Custodian.

XX.	Benchmark. The index of reference that the Sub-adviser will use for managing the Portfolio will be the MSCI World Healthcare Index.

XIX.	Miscellaneous.

Governing Law. This Agreement shall be construed in accordance with the laws of the State of Minnesota without giving effect to the conflicts of laws principles thereof and the 1940 Act. To the extent that the applicable laws of the State of Minnesota conflict with the applicable provisions of the 1940 Act, the latter shall control.

Insurance. Sub-adviser agrees to maintain a financial bond insurance coverage in an amount that is reasonable in light of the nature and scope of Sub-adviser’s business activities.

Captions. The captions contained in this Agreement are included for convenience of reference only and in no way define or delimit any of the provisions hereof or otherwise affect their construction or effect.

Entire Agreement. This Agreement represents the entire agreement and understanding of the parties hereto and shall supersede any prior agreements between the parties relating to the subject matter hereof and all such prior agreements shall be deemed terminated upon the effectiveness of this Agreement.

Interpretation. Nothing herein contained shall be deemed to require the Fund to take any action contrary to its Declaration or By-Laws, or any applicable statutory or regulatory requirement to which it is subject or by which it is bound, or to relieve or deprive the Board of its responsibility for and control of the conduct of the affairs of the Portfolio.

Definitions. Any question of interpretation of any term or provision of this Agreement having a counterpart in or otherwise derived from a term or provision of the 1940 Act shall be resolved by reference to such term or provision of the 1940 Act and to interpretations thereof, if any, by the United States courts or, in the absence of any controlling decision of any such court, by rules, regulations, or

orders of the SEC validly issued pursuant to the 1940 Act. As used in this Agreement, the terms “majority of the outstanding voting securities,” “affiliated person,” “interested person,” “assignment,” broker,” “investment adviser,” “net assets,” “sale,” “sell,” and “security” shall have the same meaning as such terms have in the 1940 Act, subject to such exemption as may be granted by the SEC by any rule, regulation, or order. Where the effect of a requirement of the federal securities laws reflected in any provision of this Agreement is made less restrictive by a rule, regulation, or order of the SEC, whether of special or general application, such provision shall be deemed to incorporate the effect of such rule, regulation, or order.

Execution in Counterparts. This Agreement may be executed simultaneously in two or more identical counterparts, each of which, standing alone, shall be an original, but all of which shall constitute but one agreement.

IN WITNESS WHEREOF, the parties hereto have caused this instrument to be executed by their duly authorized signatories as of the date and year first above written.


THRIVENT FINANCIAL FOR LUTHERANS

	By:
	Name:	▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇
	Title:	Chairman, President and Chief Executive Officer

THRIVENT SERIES FUND, INC.

	By:
	Name:	▇▇▇▇▇▇ ▇. ▇▇▇▇▇
	Title:	President

SECTORAL ASSET MANAGEMENT INC.

	By:
	Name:	▇▇▇▇▇▇ ▇▇▇▇▇
	Title:	Chief Executive Officer

Schedule I

Dated as of April 30, 2008

Sub-advisory Fees

Compensation pursuant to paragraph IV of this Sub-advisory Agreement shall be payable monthly in arrears and calculated in accordance with the following schedule applied to aggregate average daily net assets that are subject to the Sub-adviser’s investment discretion in the Portfolio:


Average Daily Net Assets*		Rate
Tiered Fee:

First $50 MM		65 bp per annum
Next $50 MM		60 bp per annum
Next $150 MM		40 bp per annum
Thereafter		35 bp per annum

Minimum annual fee: $50K.

The Sub-adviser has agreed to waive the minimum annual fee of $50K during the first calendar year of operation of the Portfolio.

*	When average daily net assets exceed the first breakpoint, multiple rates will apply, resulting in a blended rate, e.g., if average daily net assets are $90 MM, a rate of 65 bp would apply to $50 MM and a rate of 60 bp would apply to $40 MM.

FORM OF INVESTMENT SUB-ADVISORY AGREEMENT By and Among Thrivent Financial for Lutherans and Thrivent Series Fund, Inc. and Sectoral Asset Management Inc.

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