N-1A 1 babsn1a.htm BUILD AMERICA BOND PORTFOLIO INITIAL REGISTRATION STATEMENT babsn1a.htm - Generated by SEC Publisher for SEC Filing

As filed with the Securities and Exchange Commission on November 16, 2009

File No. 811-22351

SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT
UNDER
THE INVESTMENT COMPANY ACT OF 1940  [X]

BUILD AMERICA BOND PORTFOLIO
(Exact Name of Registrant as Specified in Charter)

Two International Place, Boston, Massachusetts 02110
(Address of Principal Executive Offices)

(617) 482-8260
(Registrant’s Telephone Number, including Area Code)

Maureen A. Gemma
Two International Place, Boston, Massachusetts 02110
(Name and Address of Agent for Service)


     Throughout this Registration Statement, information concerning Build America Bond Portfolio (the “Portfolio”) is incorporated by reference from Amendment No. 148 to the Registration Statement of Eaton Vance Mutual Funds Trust (the “Trust”) (File No. 02-90946 under the Securities Act of 1933 (the “1933 Act”)) (the “Amendment”), which was filed electronically with the Securities and Exchange Commission on November 16, 2009 (Accession No. 0000940394-09-000877). The Amendment contains the prospectus (the “Fund prospectus”) and statement of additional information (the “Fund SAI”) of Eaton Vance Build America Bond Fund (the “Fund”), which may invest a portion of its assets in the Portfolio.

PART A

     Responses to Items 1, 2, 3, 4 and 13 have been omitted pursuant to Paragraph B-2(b) of the General Instructions to Form N-1A.

Item 4.   Investment Objectives, Principal Investment Strategies, Related Risks and Disclosure of Portfolio Holdings

     The Portfolio is a diversified, open-end management investment company. Interests in the Portfolio are issued solely in private placement transactions that do not involve any “public offering” within the meaning of Section 4(2) of the 1933 Act. Investments in the Portfolio may be made only by U.S. and foreign investment companies, common or commingled trust funds, pooled income funds or similar organizations or entities that are “accredited investors” within the meaning of Regulation D under the 1933 Act. This Registration Statement does not constitute an offer to sell, or the solicitation of an offer to buy, any “security” within the meaning of the 1933 Act.

     The Portfolio is not intended to be a complete investment program, and a prospective investor should take into account its objectives and other investments when considering the purchase of an interest in the Portfolio. The Portfolio cannot assure achievement of its investment objective.

     Registrant also incorporates by reference information concerning the Portfolio’s investment objective and investment practices and risks from “Investment Objectives”, “Principal Investment Strategies”, “Principal Risks” and “Investment Objective & Principal Policies and Risks” in the Fund prospectus. Registrant incorporates by reference the description of the Portfolio’s policies and procedures with respect to the disclosure of portfolio holdings information from “Information about the Fund” under “Shareholder Account Features” in the Fund prospectus.

Item 5.   Management, Organization and Capital Structure

     (a) Management

     Registrant incorporates by reference information concerning the Portfolio’s management from “Management and Organization” in the Fund prospectus.

     (b) Capital Stock

     Registrant incorporates by reference information concerning interests in the Portfolio from “Management and Organization” in the Fund SAI.

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Item 6.   Shareholder Information

     (a) Pricing

     The net asset value of the Portfolio is determined once each day only when the New York Stock Exchange (the “Exchange”) is open for trading (“Portfolio Business Day”). This determination is made each Portfolio Business Day as of the close of regular trading on the Exchange (normally 4:00 p.m., Eastern time) (the “Portfolio Valuation Time”). Registrant incorporates by reference information concerning the computation of net asset value and valuation of Portfolio assets from “Valuing Shares” in the Fund prospectus.

     (b) and (c) Purchases and Redemptions

     As described above, interests in the Portfolio are issued solely in private placement transactions that do not involve any “public offering” within the meaning of Section 4(2) of the 1933 Act. There is no minimum initial or subsequent investment in the Portfolio. The Portfolio reserves the right to cease accepting investments at any time or to reject any investment order. The placement agent for the Portfolio is Eaton Vance Distributors, Inc. (“EVD”), a direct wholly-owned subsidiary of Eaton Vance Corp. The principal business address of EVD is Two International Place, Boston, Massachusetts 02110. EVD receives no compensation for serving as the placement agent for the Portfolio.

     Each investor in the Portfolio may add to or reduce its investment in the Portfolio on each Portfolio Business Day as of the Portfolio Valuation Time. The value of each investor’s interest in the Portfolio will be determined by multiplying the net asset value of the Portfolio by the percentage, determined on the prior Portfolio Business Day, which represents that investor’s share of the aggregate interests in the Portfolio on such prior day. Any additions or withdrawals for the current Portfolio Business Day will then be recorded. Each investor’s percentage of the aggregate interest in the Portfolio will then be recomputed as a percentage equal to a fraction (i) the numerator of which is the value of such investor’s investment in the Portfolio as of the Portfolio Valuation Time on the prior Portfolio Business Day plus or minus, as the case may be, the amount of any additions to or withdrawals from the investor’s investment in the Portfolio on the current Portfolio Business Day and (ii) the denominator of which is the aggregate net asset value of the Portfolio as of the Portfolio Valuation Time on the prior Portfolio Business Day plus or minus, as the case may be, the amount of the net additions to or withdrawals from the aggregate investment in the Portfolio on the current Portfolio Business Day by all investors in the Portfolio. The percentage so determined will then be applied to determine the value of the investor’s interest in the Portfolio for the current Portfolio Business Day.

     An investor in the Portfolio may withdraw all of (redeem) or any portion of (decrease) its interest in the Portfolio if a withdrawal request in proper form is furnished by the investor to the Portfolio. All withdrawals will be effected as of the next Portfolio Valuation Time. The proceeds of a withdrawal will be paid by the Portfolio normally on the Portfolio Business Day the withdrawal is effected, but in any event within seven days. The Portfolio reserves the right to pay the proceeds of a withdrawal (whether a redemption or decrease) by a distribution in kind of portfolio securities (instead of cash). The securities so distributed would be valued at the same amount as that assigned to them in calculating the net asset value for the interest (whether complete or partial) being withdrawn. If an investor received a distribution in kind upon such withdrawal, the investor could incur brokerage and other charges in converting the securities to cash. Investments in the Portfolio may not be transferred.

     The right of any investor to receive payment with respect to any withdrawal may be suspended or the payment of the withdrawal proceeds postponed during any period in which the Exchange is closed (other than weekends or holidays) or trading on the Exchange is restricted as determined by the Securities

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and Exchange Commission (the “SEC”) or, to the extent otherwise permitted by the Investment Company Act of 1940, as amended (the “1940 Act”), if an emergency exists as determined by the SEC, or during any other period permitted by order of the SEC for the protection of investors.

     (d) Dividends and Distributions

     The Portfolio will allocate at least annually among its investors each investor’s distributive share of the Portfolio’s net investment income, net realized capital gains, and any other items of income, gain, loss, deduction or credit.

     (e) Frequent Purchases and Redemptions of Fund Shares

     In general, frequent purchases and redemptions of investment company shares may dilute the value of shares held by long-term shareholders. Excessive purchases and redemptions may disrupt efficient portfolio management, forcing an investment company to sell portfolio securities at inopportune times to raise cash, or cause increased expenses such as increased brokerage costs, realization of taxable capital gains without attaining any investment advantage, or increased administrative costs. The Boards of Trustees of the Eaton Vance funds have adopted policies for the Fund to discourage short-term trading and market timing and to seek to minimize the potentially detrimental effects of frequent purchases and redemptions of Fund shares. Registrant incorporates by reference additional information from “Restrictions on Excessive Trading and Market Timing” under “Purchasing Shares” in the Fund prospectus.

     (f) Tax Consequences

     Under the anticipated method of operation of the Portfolio, the Portfolio should be classified as a partnership under the Internal Revenue Code of 1986, as amended (the “Code”) and should not be subject to any federal income tax. However, each investor in the Portfolio will be required to take into account its allocable share of the Portfolio’s taxable ordinary income and capital gain in determining its federal income tax liability, if any. The determination of each such share will be made in accordance with the governing instruments of the Portfolio, which are intended to comply with the requirements of the Code and the regulations promulgated thereunder.

     The Portfolio expects to manage its assets in such a way that an investment company investing in the Portfolio will be able to satisfy the requirements of Subchapter M of the Code, assuming that it invests all of its assets in the Portfolio or other regulated investment companies that so manage their assets.

Item 7.   Distribution Arrangements

     Not applicable.

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PART B

Item 9.   Cover Page and Table of Contents

  Page 
Portfolio History  B-1 
Description of the Portfolio and Its Investments and Risks  B-1 
Management of the Portfolio  B-1 
Control Persons and Principal Holders of Securities  B-2 
Investment Advisory and Other Services  B-2 
Portfolio Managers  B-2 
Brokerage Allocation and Other Practices  B-2 
Capital Stock and Other Securities  B-3 
Purchase, Redemption and Pricing of Shares  B-4 
Taxation of the Portfolio  B-4 
Underwriters  B-6 
Calculation of Performance Data  B-6 
Financial Statements  B-7 

Item 10.   Portfolio History

     The Portfolio is organized as a trust under the laws of the Commonwealth of Massachusetts under a Declaration of Trust dated October 19, 2009.

Item 11.   Description of the Portfolio and Its Investments and Risks

     Part A contains information about the investment objective and policies of the Portfolio. This Part B should be read in conjunction with Part A. Capitalized terms used in this Part B and not otherwise defined have the meanings given them in Part A.

     Registrant also incorporates by reference additional information concerning the investment policies of the Portfolio as well as information concerning the investment restrictions of the Portfolio from “Strategies and Risks” and “Investment Restrictions” in the Fund SAI. Registrant incorporates by reference the Portfolio’s policies regarding the disclosure of portfolio holdings information from “Disclosure of Portfolio Holdings and Related Information” under “Performance” in the Fund SAI.

Item 12.   Management of the Portfolio

     (a) - (c) Board of Trustees, Management Information and Compensation

     Registrant incorporates by reference additional information concerning the management of the Portfolio from “Management and Organization” in the Fund SAI.

     (d) Sales Loads

     Not applicable.

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     (e) Code of Ethics

     Registrant incorporates by reference information concerning relevant codes of ethics from “Code of Ethics” under “Investment Advisory and Administrative Services” in the Fund SAI.

     (f) Proxy Voting Policies

     Registrant incorporates by reference information concerning relevant proxy voting policies from “Proxy Voting Policy” under “Management and Organization” and from “Appendix E” and “Appendix F” in the Fund SAI.

Item 13.   Control Persons and Principal Holders of Securities

     (a) - (b) Control Persons and Principal Holders

     As of November 16, 2009, Eaton Vance Management (“EVM”) controlled the Portfolio by virtue of owning approximately 99.9% of the value of the outstanding interests in the Portfolio.

     EVM is organized as a Massachusetts business trust. It is a wholly-owned subsidiary of Eaton Vance Corp. and its address is Two International Place, Boston, MA 02110. A controlling interest holder may take actions without the approval of any other investor.

     (c) Management Ownership

     As described in Part A, interests in the Portfolio may only be held by certain investment companies and other entities. Interests in the Portfolio cannot be purchased by a Trustee or officer of the Portfolio. The Trustees and officers of the Portfolio as a group do not own any interests in the Portfolio.

Item 14.   Investment Advisory and Other Services

     Registrant incorporates by reference information concerning investment advisory and other services provided to the Portfolio from “Investment Advisory and Administrative Services” and “Other Service Providers” in the Fund SAI.

Item 15.   Portfolio Managers

     As described in Part A, interests in the Portfolio may only be held by certain investment companies and other entities. Interests in the Portfolio cannot be purchased by a portfolio manager.

     Registrant incorporates by reference information concerning the portfolio managers of the Portfolio from “Investment Advisory and Administrative Services” in the Fund SAI.

Item 16.   Brokerage Allocation and Other Practices

     Registrant incorporates by reference information concerning the brokerage practices of the Portfolio from “Portfolio Securities Transactions” in the Fund SAI.

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Item 17.   Capital Stock and Other Securities

     Under the Portfolio’s Declaration of Trust, the Trustees are authorized to issue interests in the Portfolio. Investors are entitled to participate pro rata in distributions of taxable income, loss, gain and credit of the Portfolio. Upon dissolution of the Portfolio, the Trustees shall liquidate the assets of the Portfolio and apply and distribute the proceeds thereof as follows: (a) first, to the payment of all debts and obligations of the Portfolio to third parties including, without limitation, the retirement of outstanding debt, including any debt owed to holders of record of interests in the Portfolio (“Holders”) or their affiliates, and the expenses of liquidation, and to the setting up of any reserves for contingencies which may be necessary; and (b) second, in accordance with the Holders’ positive Book Capital Account balances after adjusting Book Capital Accounts for certain allocations provided in the Declaration of Trust and in accordance with the requirements described in Treasury Regulations Section 1.704-1(b)(2)(ii)(b)(2). Notwithstanding the foregoing, if the Trustees shall determine that an immediate sale of part or all of the assets of the Portfolio would cause undue loss to the Holders, the Trustees, in order to avoid such loss, may, after having given notification to all the Holders, to the extent not then prohibited by the law of any jurisdiction in which the Portfolio is then formed or qualified and applicable in the circumstances, either defer liquidation of and withhold from distribution for a reasonable time any assets of the Portfolio except those necessary to satisfy the Portfolio’s debts and obligations or distribute the Portfolio’s assets to the Holders in liquidation. Certificates representing an investor’s interest in the Portfolio are issued only upon the written request of a Holder.

     Each Holder is entitled to vote in proportion to the amount of its interest in the Portfolio. Holders do not have cumulative voting rights. The Portfolio is not required and has no current intention to hold annual meetings of Holders, but the Portfolio will hold meetings of Holders when in the judgment of the Portfolio’s Trustees it is necessary or desirable to submit matters to a vote of Holders at a meeting. Any action which may be taken by Holders may be taken without a meeting if Holders holding more than 50% of all interests entitled to vote (or such larger proportion thereof as shall be required by any express provision of the Declaration of Trust of the Portfolio) consent to the action in writing and the consents are filed with the records of meetings of Holders.

     The Portfolio’s Declaration of Trust may be amended by vote of Holders of more than 50% of all interests in the Portfolio at any meeting of Holders or by an instrument in writing without a meeting, executed by a majority of the Trustees and consented to by the Holders of more than 50% of all interests. The Trustees may also amend the Declaration of Trust (without the vote or consent of Holders) to change the Portfolio’s name or the state or other jurisdiction whose law shall be the governing law, to supply any omission or cure, correct or supplement any ambiguous, defective or inconsistent provision, to conform the Declaration of Trust to applicable federal law or regulations or to the requirements of the Code, or to change, modify or rescind any provision, provided that such change, modification or rescission is determined by the Trustees to be necessary or appropriate and not to have a materially adverse effect on the financial interests of the Holders. No amendment of the Declaration of Trust which would change any rights with respect to any Holder’s interest in the Portfolio by reducing the amount payable thereon upon liquidation of the Portfolio may be made, except with the vote or consent of the Holders of two-thirds of all interests. References in the Declaration of Trust and in Part A or this Part B to a specified percentage of, or fraction of, interests in the Portfolio, means Holders whose combined Book Capital Account balances represent such specified percentage or fraction of the combined Book Capital Account balance of all, or a specified group of, Holders.

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     The Portfolio may merge or consolidate with any other corporation, association, trust or other organization or may sell or exchange all or substantially all of its assets upon such terms and conditions and for such consideration when and as authorized by the Holders of (a) 67% or more of the interests in the Portfolio present or represented at the meeting of Holders, if Holders of more than 50% of all interests are present or represented by proxy, or (b) more than 50% of all interests, whichever is less. The Portfolio may be terminated (i) by the affirmative vote of Holders of not less than two-thirds of all interests at any meeting of Holders or by an instrument in writing without a meeting, executed by a majority of the Trustees and consented to by Holders of not less than two-thirds of all interests, or (ii) by the Trustees by written notice to the Holders.

     The Declaration of Trust provides that obligations of the Portfolio are not binding upon the Trustees individually but only upon the property of the Portfolio and that the Trustees will not be liable for any action or failure to act, but nothing in the Declaration of Trust protects a Trustee against any liability to which he would otherwise be subject by reason of willful misfeasance, bad faith, gross negligence, or reckless disregard of the duties involved in the conduct of his office.

Item 18.   Purchase, Redemption and Pricing of Shares

     See Item 6 herein. Registrant incorporates by reference information concerning valuation of the Portfolio’s assets from “Calculation of Net Asset Value” in the Fund SAI.

Item 19.   Taxation of the Portfolio

     Provided the Portfolio is operated at all times during its existence in accordance with certain organizational and operational documents, the Portfolio should be classified as a partnership under the Code, and it should not be a “publicly traded partnership” within the meaning of Section 7704 of the Code. Consequently, the Portfolio does not expect that it will be required to pay any federal income tax, and a Holder will be required to take into account in determining its federal income tax liability its share of the Portfolio’s income, gains, losses, deductions and credits.

     Under Subchapter K of the Code, a partnership is considered to be either an aggregate of its members or a separate entity depending upon the factual and legal context in which the question arises. Under the aggregate approach, each partner is treated as an owner of an undivided interest in partnership assets and operations. Under the entity approach, the partnership is treated as a separate entity in which partners have no direct interest in partnership assets and operations. In the case of a Holder that seeks to qualify as a regulated investment company (“RIC”), the aggregate approach should apply, and each such Holder should accordingly be deemed to own a proportionate share of each of the assets of the Portfolio and to be entitled to the gross income of the Portfolio attributable to that share for purposes of all requirements of Subchapter M of the Code.

     In order to enable a Holder (that is otherwise eligible) to qualify as a RIC, the Portfolio intends to satisfy the requirements of Subchapter M of the Code relating to sources of income and diversification of assets as if they were applicable to the Portfolio and to permit withdrawals in a manner that will enable a Holder which is a RIC to comply with the distribution requirements applicable to RICs (including those under Sections 852 and 4982 of the Code). The Portfolio will allocate at least annually to each Holder such Holder’s distributive share of the Portfolio’s net investment income, net realized capital gains, and any other items of income, gain, loss, deduction or credit in a manner intended to comply with the Code and applicable Treasury Regulations.

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     To the extent the cash proceeds of any withdrawal (or, under certain circumstances, such proceeds plus the value of any marketable securities distributed to an investor) (“liquid proceeds”) exceed a Holder’s adjusted basis of his interest in the Portfolio, the Holder will generally realize a gain for federal income tax purposes. If, upon a complete withdrawal (redemption of the entire interest), a Holder receives only liquid proceeds (and/or unrealized receivables) and the Holder’s adjusted basis of his interest exceeds the liquid proceeds of such withdrawal and the Holder’s basis in any unrealized receivables, the Holder will generally realize a loss for federal income tax purposes. In addition, on a distribution to a Holder from the Portfolio, (1) income or gain may be recognized if the distribution changes a distributee’s share of any unrealized receivables held by the Portfolio and (2) gain or loss may be recognized on a distribution to a Holder that contributed property to the Portfolio. The tax consequences of a withdrawal of property (instead of or in addition to liquid proceeds) will be different and will depend on the specific factual circumstances. A Holder’s adjusted basis of an interest in the Portfolio will generally be the aggregate prices paid therefor (including the adjusted basis of contributed property and any gain recognized on the contribution thereof), increased by the amounts of the Holder’s distributive share of items of income (including income exempt from federal income taxation) and realized net gain of the Portfolio, and reduced, but not below zero, by (i) the amounts of the Holder’s distributive share of items of Portfolio loss, and (ii) the amount of any cash distributions (including distributions of income exempt from federal income taxation and cash distributions on withdrawals from the Portfolio) and the basis to the Holder of any property received by such Holder other than in liquidation, and (iii) the Holder’s distributive share of the Portfolio’s nondeductible expenditures not properly chargeable to the Holder’s capital account. Increases or decreases in a Holder’s share of the Portfolio’s liabilities may also result in corresponding increases or decreases in such adjusted basis.

     A partnership has the option to make an election to adjust the basis of the partnership’s assets in the event of a distribution of partnership property to a partner, or a transfer of a partnership interest. This optional adjustment could either increase or decrease the value of a partnership interest to the transferee depending on the relevant facts. There can be no assurance that the Portfolio will make such an election in the future. Furthermore, this election is mandatory in certain circumstances.

     The Portfolio’s investments in options, futures contracts, hedging transactions and certain other transactions will be subject to special tax rules (including mark-to-market, constructive sale, straddle, wash sale, short sale and other rules), the effect of which may be to accelerate income to the Portfolio, defer Portfolio losses, cause adjustments in the holding periods of Portfolio securities, convert capital gain into ordinary income and convert short-term capital losses into long-term capital losses. These rules could therefore affect the amount, timing and character of distributions to investors including RIC shareholders.

     The Portfolio will allocate at least annually to its investors their respective distributive shares of any net investment income and net capital gains which have been recognized for federal income tax purposes (including unrealized gains at the end of the Portfolio’s fiscal year on certain options and futures transactions that are required to be marked-to-market).

     An entity that is treated as a partnership under the Code, such as the Portfolio, is generally treated as a partnership under state and local tax laws, but certain states may have different entity classification criteria and may therefore reach a different conclusion. Entities that are classified as partnerships are not treated as separate taxable entities under most state and local tax laws, and the income of a partnership is considered to be income of partners both in timing and in character. The laws of the various states and local taxing authorities vary with respect to the status of a partnership interest under state and local tax laws, and each Holder of an interest in the Portfolio is advised to consult his own tax adviser.

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     The foregoing discussion does not address the special tax rules applicable to certain classes of investors, such as tax-exempt entities, foreign investors, insurance companies and financial institutions. Investors should consult their own tax advisers with respect to special tax rules that may apply in their particular situations, as well as the state, local or foreign tax consequences of investing in the Portfolio. It is not possible at this time to predict whether or to what extent any changes in the Code or interpretations thereof will occur. Prospective investors should consult with their own tax advisers regarding pending and proposed legislation and other changes.

Item 20.   Underwriters

     The placement agent for the Portfolio is EVD. Investment companies, common and commingled trust funds, pooled income funds and similar entities may continuously invest in the Portfolio.

Item 21.   Calculation of Performance Data

     Not applicable.

Item 22.   Financial Statements

     The following audited financial statements of the Portfolio included herein have been included in reliance upon the report of Deloitte & Touche LLP, an independent registered public accounting firm.

  Statement of Assets and Liabilities as of November 5, 2009
Statement of Operations from October 19, 2009 (date of organization) through November 5, 2009
Report of Independent Registered Public Accounting Firm

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FINANCIAL STATEMENTS
Build America Bond Portfolio

Statement of Assets and Liabilities
As of November 5, 2009

Assets:   
         Cash  $105,010 
                   Total assets  $105,010 
 
Liabilities:   
         Accrued organization costs  $ 5,000 
                   Total liabilities  $ 5,000 
 
Net Assets  $100,010 
 
Statement of Operations
Period from October 19, 2009 (date of organization) through November 5, 2009
 
Investment Income  $ – 
 
Expenses:   
         Organization costs  $ 5,000 
                   Net expenses  $ 5,000 
 
Net investment loss  $ (5,000) 

NOTES:

(1) Organization - Build America Bond Portfolio (the “Portfolio”) was organized as a Massachusetts business trust on October 19, 2009 and has been inactive since that date, except for matters relating to its organization and registration as an investment company under the Investment Company Act of 1940 and the sale of interests therein at the purchase price of $105,000 to Eaton Vance Management (“EVM”), an affiliated company, and the sale of an interest therein at the purchase price of $10 to Eaton Vance Corp., an affiliated company.

The Portfolio’s primary investment objective is current income and its secondary objective is capital appreciation. The Portfolio may invest in taxable municipal obligations issued pursuant to the American Recovery and Reinvestment Act of 2009 or other legislation providing for the issuance of taxable municipal debt on which the issuer receives federal support.

(2) Accounting Policies - The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amount of revenue and expense during the reporting period. Actual results could differ from those estimates.

At 4:00 PM, New York City time, on each business day of the Portfolio, the value of an investor’s interest in the Portfolio is equal to the product of (i) the aggregate net assets of the Portfolio multiplied by (ii) the percentage representing that investor’s share of the aggregate interest in the Portfolio effective for that day.

Costs incurred by the Portfolio in connection with its organization have been expensed.

As of November 5, 2009, the Portfolio had no uncertain tax positions that would require financial statement recognition, de-recognition, or disclosure.

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(3) Investment Advisory Agreement - The Portfolio has entered into an investment advisory agreement with Boston Management and Research, an affiliated company,  under which the fee is computed at the annual rate of 0.600% of the average daily net assets of the Portfolio up to $500 million once operations commence. On net assets of $500 million and over the annual fee is reduced. The fee is payable monthly.

(4) Indemnifications - Under the Portfolio’s organizational documents, its officers and Trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the Portfolio, and shareholders are indemnified against personal liability for the obligations of the Portfolio. Additionally, in the normal course of business, the Portfolio enters into agreements with service providers that may contain indemnification clauses. The Portfolio’s maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Portfolio that have not yet occurred.

(5) Review for Subsequent Events - In connection with the preparation of the financial statements of the Portfolio as of and for the period ended November 5, 2009, events and transactions subsequent to November 5, 2009 through November 16, 2009, the date the financial statements were issued, have been evaluated by the Portfolio's management for possible adjustment and/or disclosure. Management has not identified any subsequent events requiring financial statement disclosure as of the date these financial statements were issued.

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Report of Independent Registered Public Accounting Firm

To the Trustees and Investors of
     Build America Bond Portfolio:

We have audited the accompanying statement of assets and liabilities of Build America Bond Portfolio (a Massachusetts business trust) (the “Portfolio”) as of November 5, 2009 and the related statement of operations for the period from the date of organization, October 19, 2009 through November 5, 2009. These financial statements are the responsibility of the Portfolio’s management. Our responsibility is to express an opinion on these financial statements based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Portfolio is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. An audit includes consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Portfolio’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of Build America Bond Portfolio as of November 5, 2009 and the results of its operations for the period from October 19, 2009 (date of organization) through November 5, 2009, in conformity with accounting principles generally accepted in the United States of America.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

November 16, 2009

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PART C

Item 23. Exhibits (with inapplicable items omitted)

(a)  Declaration of Trust dated October 19, 2009 filed herewith. 
 
(b)  By-Laws of the Registrant adopted October 19, 2009 filed herewith. 
 
(c)  Reference is made to Item 23(a) and 23(b) above. 
 
(d)  Investment Advisory Agreement between the Registrant and Boston Management and 
  Research dated October 19, 2009 filed herewith. 
 
(e)  Placement Agent Agreement with Eaton Vance Distributors, Inc. dated October 19, 2009 
  filed herewith. 
 
(f)  The Securities and Exchange Commission has granted the Registrant an exemptive order 
  that permits the Registrant to enter into deferred compensation arrangements with its 
  independent Trustees. See In the Matter of Capital Exchange Fund, Inc., Release No. IC- 
  20671 (November 1, 1994). 
 
(g)  (1) Master Custodian Agreement with Investors Bank & Trust Company dated October 19, 
  2009 filed herewith. 
 
(2)  Extension Agreement dated August 31, 2005 to Master Custodian Agreement with 
  Investors Bank & Trust Company filed as Exhibit (j)(2) to the Eaton Vance Tax- 
  Managed Global Buy-Write Opportunities Fund N-2, Pre-Effective Amendment No. 2 
  (File Nos. 333-123961, 811-21745) filed on September 26, 2005 (Accession No. 
  0000940394-05-005528) and incorporated herein by reference. 
 
       (3)  Delegation Agreement dated December 11, 2000 with Investors Bank & Trust Company 
  filed as Exhibit (j)(e) to the Eaton Vance Prime Rate Reserves N-2, Amendment No. 5 
  (File No. 333-32276, 811-05808) filed on April 3, 2001 (Accession No. 0000940394-01- 
  500126) and incorporated herein by reference. 
 
(l)  Investment representation letter of Boston Management and Research dated November 5, 
  2009 filed herewith. 
 
(p)  Code of Ethics adopted by Eaton Vance Corp., Eaton Vance Management, Boston 
  Management and Research, Eaton Vance Distributors, Inc. and the Eaton Vance Funds 
  effective September 1, 2000, as revised October 19, 2009, filed as Exhibit (p) to Post- 
  Effective Amendment No. 119 of Eaton Vance Municipals Trust (File Nos. 33-572, 811- 
  4409) filed October 26, 2009 (Accession No. 0000940394-09-000803) and incorporated 
  herein by reference. 

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Item 24.   Persons Controlled by or Under Common Control with Registrant

     Not applicable.

Item 25.   Indemnification

     Article V of the Registrant’s Declaration of Trust contains indemnification provisions for Trustees and officers. The Trustees and officers of the Registrant and the personnel of the Registrant’s investment adviser are insured under an errors and omissions liability insurance policy.

     The Placement Agent Agreement also provides for reciprocal indemnity of the placement agent, on the one hand, and the Trustees and officers, on the other.

Item 26.   Business and Other Connections of the Investment Adviser

     Reference is made to: (i) the information set forth under the caption “Management and Organization” in the Fund SAI; (ii) the Eaton Vance Corp. 10-K filed under the Securities Exchange Act of 1934 (File No. 1-8100); and (iii) the Forms ADV of Eaton Vance Management (File No. 801-15930) and Boston Management and Research (File No. 801-43127) filed with the SEC, all of which are incorporated herein by reference.

Item 27.   Principal Underwriters

     Not applicable.

Item 28.   Location of Accounts and Records

     All applicable accounts, books and documents required to be maintained by the Registrant by Section 31(a) of the 1940 Act and the Rules promulgated thereunder are in the possession and custody of the Registrant’s custodian, State Street Bank and Trust Company, 200 Clarendon Street, Boston, MA 02116, with the exception of certain corporate documents and portfolio trading documents which are in the possession and custody of the Registrant’s investment adviser at Two International Place, Boston, MA 02110. The Registrant is informed that all applicable accounts, books and documents required to be maintained by registered investment advisers are in the custody and possession of the Registrant’s investment adviser.

Item 29.   Management Services

     Not applicable.

Item 30.   Undertakings

     Not applicable.

C-2


SIGNATURES

     Pursuant to the requirements of the Investment Company Act of 1940, the Registrant has duly caused this Registration Statement on Form N-1A to be signed on its behalf by the undersigned, thereunto duly authorized in the City of Boston and Commonwealth of Massachusetts on the 16th day of November, 2009.

  BUILD AMERICA BOND PORTFOLIO

By: /s/ Cynthia J. Clemson                   
      Cynthia J. Clemson
      President


INDEX TO EXHIBITS

Exhibit No.  Description of Exhibit 
  
(a)  Declaration of Trust as of October 19, 2009 
 
(b)  By-Laws of the Registrant adopted October 19, 2009 
 
(d)  Investment Advisory Agreement between the Registrant and Boston Management and 
  Research dated October 19, 2009 
 
(e)  Placement Agent Agreement with Eaton Vance Distributors, Inc. dated October 19, 2009 
 
(g) (l)  Master Custodian Agreement with Investors Bank & Trust Company dated October 19, 
  2009 
 
(l)  Investment representation letter of Boston Management and Research dated November 5, 
  2009