a_bankthrift.htm

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811- 8568

John Hancock Bank and Thrift Opportunity Fund
(Exact name of registrant as specified in charter)

601 Congress Street, Boston, Massachusetts 02210
(Address of principal executive offices) (Zip code)

Alfred P. Ouellette, Senior Counsel & Assistant Secretary

601 Congress Street

Boston, Massachusetts 02210

(Name and address of agent for service)

Registrant's telephone number, including area code: 617-663-4324

Date of fiscal year end:  October  31 
 
 
Date of reporting period:  July 31,  2007 

ITEM 1. SCHEDULE OF INVESTMENTS




John Hancock
Bank and Thrift Opportunity Fund
Securities owned by the Fund on
July 31, 2007 (unaudited)

  Par value   
Issuer, description  (000)  Value 

Capital preferred securites  0.39%    $2,911,500 
(Cost $2,970,000)     
 
Financial Services 0.39%    2,911,500 

Preferred Term Securities XXV, Ltd.,     
Zero Coupon, 6-22-37 (Cayman     
Islands) (F)  $3,000  2,911,500 
 
Issuer  Shares  Value 

Common stocks 98.40%    $738,640,140 
(Cost $457,271,959)     
 
Asset Management & Custody Banks  4.79%    35,944,054 

Bank of New York Mellon Corp. (NY) (W)  570,284  24,265,584 
Northern Trust Corp. (IL)  70,000  4,372,200 
State Street Corp. (MA)  109,000  7,306,270 
 
Diversified Banks 11.41%    85,683,646 

Comerica, Inc. (MI)  314,400  16,556,304 
U.S. Bancorp. (MN)  700,541  20,981,203 
Wachovia Corp. (NC)  503,571  23,773,587 
Wells Fargo & Co. (CA)  721,722  24,372,552 
 
Other Diversified Financial Services  7.35%    55,191,391 

Bank of America Corp. (NC)  524,260  24,860,409 
Citigroup, Inc. (NY)  325,225  15,145,728 
JPMorgan Chase & Co. (NY)  345,041  15,185,254 
 
Regional Banks 70.31%    527,746,201 

Access National Corp. (VA)  250,000  1,752,500 
Alabama National Bancorp. (AL)  181,000  9,659,970 
AmericanWest Bancorp. (WA)  364,621  5,560,470 
Ameris Bancorp. (GA)  98,337  1,755,315 
Bank of Hawaii Corp. (HI)  59,300  2,847,586 
Bank of the Ozarks, Inc. (AR)  110,450  3,120,213 
BB&T Corp. (NC)  344,846  12,904,137 
Beverly National Corp. (MA)  97,500  1,903,200 
BOK Financial Corp. (OK)  95,208  4,762,304 
Boston Private Financial Holdings, Inc. (MA)  74,000  1,886,260 
Bridge Capital Holdings (CA) (I)  107,600  2,485,560 
Camden National Corp. (ME)  140,000  5,012,000 
Capital City Bank Group, Inc. (FL) (L)  74,543  2,233,308 
Cardinal Financial Corp. (VA)  20,000  187,200 
Cascade Bancorp. (OR)  242,090  5,279,983 

Page 1


John Hancock
Bank and Thrift Opportunity Fund
Securities owned by the Fund on
July 31, 2007 (unaudited)

 
Chittenden Corp. (VT)  304,981  10,201,614 
City Holding Co. (WV)  41,600  1,366,560 
City National Corp. (CA)  238,377  16,874,708 
CoBiz, Inc. (CO)  340,650  5,266,449 
Colonial BancGroup, Inc. (The) (AL)  713,307  15,557,226 
Columbia Bancorp. (OR)  132,000  2,477,640 
Cullen/Frost Bankers, Inc. (TX)  453,770  22,538,756 
Dearborn Bancorp., Inc. (MI) (I)  105,622  1,378,367 
DNB Financial Corp. (PA)  76,205  1,505,049 
East West Bancorp., Inc. (CA)  420,000  15,397,200 
Eastern Virginia Bankshares, Inc. (VA)  100,000  2,029,000 
ECB Bancorp., Inc. (NC)  65,000  1,768,000 
Eurobancshares, Inc. (Puerto Rico) (F)(I)  42,830  360,200 
F.N.B. Corp. (PA) (L)  245,049  3,678,185 
Financial Institutions, Inc. (NY)  73,000  1,336,630 
First American Financial Holdings, Inc. (TN)  300,000  2,523,000 
First Charter Corp. (NC)  338,300  6,234,869 
First Horizon National Corp. (TN)  152,150  4,826,198 
First Midwest Bancorp., Inc. (IL)  103,800  3,413,982 
First National Lincoln Corp. (ME)  146,499  2,343,984 
First Regional Bancorp. (CA) (I)  419,000  9,012,690 
First State Bancorp. (NM)  227,850  3,932,691 
Fulton Financial Corp. (PA)  359,890  4,757,746 
Glacier Bancorp., Inc. (MT)  577,932  11,009,605 
Greene Bancshares, Inc. (TN)  25,000  826,500 
Hancock Holding Co. (MS)  209,650  7,415,321 
Harleysville National Corp. (PA)  151,897  2,238,962 
Huntington Bancshares, Inc. (OH)  520,215  9,988,128 
IBERIABANK Corp. (LA)  60,000  2,528,400 
Independent Bank Corp. (MI)  344,935  4,180,612 
International Bancshares Corp. (TX)  220,370  4,854,751 
KeyCorp (OH)  287,000  9,956,030 
Lakeland Financial Corp. (IN)  144,802  3,285,557 
M&T Bank Corp. (NY)  176,157  18,723,728 
Marshall & Ilsley Corp. (WI)  411,895  16,974,193 
MB Financial, Inc. (IL)  156,100  4,976,468 
Northrim Bancorp., Inc. (AK)  73,555  2,199,295 
Pacific Capital Bancorp. (CA)  280,954  5,871,939 
Pinnacle Financial Partners, Inc. (TN) (I)  55,000  1,326,050 
PNC Financial Services Group, Inc. (PA)  357,246  23,810,446 
Prosperity Bancshares, Inc. (TX)  75,895  2,149,346 
Provident Bankshares Corp. (MD)  198,558  5,698,615 
Regions Financial Corp. (AL)  253,843  7,633,059 
S&T Bancorp., Inc. (PA)  154,700  4,808,076 
Sandy Spring Bancorp., Inc. (MD)  165,424  4,456,523 
SCBT Financial Corp. (SC)  90,000  2,622,600 
Security Bank Corp. (GA) (L)  317,500  4,489,450 
Signature Bank (NY) (I)  40,000  1,235,600 
Smithtown Bancorp., Inc. (NY) (L)  49,500  1,150,875 
South Financial Group, Inc. (The) (SC)  70,150  1,512,434 

Page 2


John Hancock
Bank and Thrift Opportunity Fund
Securities owned by the Fund on
July 31, 2007 (unaudited)

 
Southcoast Financial Corp. (SC) (I)  74,789  1,420,991 
Sterling Bancshares, Inc. (TX)  598,000  6,225,180 
SunTrust Banks, Inc. (GA)  255,976  20,042,921 
SVB Financial Group (CA) (I)  244,700  12,890,796 
Synovus Financial Corp. (GA)  570,450  15,949,782 
Taylor Capital Group, Inc. (IL)  241,950  6,566,523 
TCF Financial Corp. (MN)  408,166  10,036,802 
TriCo Bancshares (CA)  53,000  1,071,660 
UCBH Holdings, Inc. (CA)  585,033  9,617,943 
Umpqua Holdings Corp. (OR)  182,901  3,478,777 
UnionBanCal Corp. (CA)  124,800  6,896,448 
Union Bankshares Corp. (VA)  97,500  1,892,475 
United Community Banks, Inc. (GA)  42,500  996,625 
Univest Corp. (PA) (L)  205,218  3,952,499 
Valley National Bancorp. (NJ) (L)  105,267  2,228,502 
Vineyard National Bancorp Co. (CA)  194,168  4,017,336 
Virginia Commerce Bancorp., Inc. (VA) (I)(L)  78,465  1,144,804 
Virginia Financial Group, Inc. (VA)  123,850  2,579,795 
Webster Financial Corp. (CT)  70,110  3,046,981 
West Coast Bancorp. (OR)  67,583  1,769,323 
Westamerica Bancorp. (CA)  40,000  1,637,200 
Western Alliance Bancorp. (NV) (I)(L)  109,500  2,880,945 
Whitney Holding Corp. (LA)  264,400  6,607,356 
Wilmington Trust Corp. (DE)  267,950  10,433,973 
Zions Bancorp. (UT)  326,053  24,307,251 
 
Thrifts & Mortgage Finance 4.54%    34,074,848 

Astoria Financial Corp. (NY)  75,865  1,786,621 
Benjamin Franklin Bancorp., Inc. (MA)  15,000  201,750 
Berkshire Hills Bancorp., Inc. (MA)  330,410  8,669,958 
Countrywide Financial Corp. (CA)  87,848  2,474,678 
Hingham Institute for Savings (MA)  80,000  2,511,200 
Hudson City Bancorp., Inc. (NJ)  386,310  4,720,708 
LSB Corp. (MA)  65,000  1,054,950 
People's United Financial, Inc. (CT)  167,980  2,707,838 
Sovereign Bancorp., Inc. (PA)  103,400  1,979,076 
Washington Mutual, Inc. (WA)  212,312  7,968,069 

Page 3


John Hancock
Bank and Thrift Opportunity Fund
Securities owned by the Fund on
July 31, 2007 (unaudited)

 
  Interest  Maturity  Par value   
Issuer, description  rate  Date  ($000)  Value 

Short-term investments 2.95%        $22,122,175 
(Cost $22,122,175)         
 
Certificates of Deposit 0.01%        74,156 

Country Bank for Savings  5.640%  08-30-08  2  1,610 
First Bank Richmond  2.960  12-05-07  16  15,628 
First Bank System, Inc.  4.889  05-02-08  4  4,260 
First Federal Savings Bank of Louisiana  2.480  12-07-07  3  2,711 
Framingham Cooperative Bank  3.750  09-10-07  3  3,163 
Home Bank  2.720  12-04-07  15  15,047 
Hudson River Bank & Trust  1.980  11-21-07  7  7,378 
Hudson Savings Bank  4.800  04-20-09  2  1,785 
Machias Savings Bank  3.540  05-24-09  2  1,672 
Middlesex Savings Bank  5.120  08-17-08  2  1,652 
Midstate Federal Savings and Loan Assn.  4.250  05-27-08  2  1,737 
Milford Bank  3.400  05-27-09  2  1,666 
Milford Federal Savings and Loan Assn.  3.650  02-28-08  2  1,683 
Mount McKinley Savings Bank  4.750  12-03-07  1  1,495 
Mount Washington Bank  3.300  10-31-07  2  1,564 
Natick Federal Savings Bank  4.590  08-31-07  2  1,611 
Newburyport Bank  3.400  10-20-08  2  1,777 
OBA Federal Savings Bank  4.600  06-15-09  1  1,145 
Plymouth Savings Bank  3.590  04-21-09  2  1,730 
Randolph Savings Bank  4.000  09-13-07  2  1,585 
Salem Five Bank  3.150  12-17-07  2  1,565 
Sunshine Federal Savings and Loan Assn.  5.000  05-10-09  2  1,692 
 
Joint Repurchase Agreement 0.96%        7,167,000 

Joint Repurchase Agreement with Bank of America         
Corp. dated 07-31-2007 at 5.120% to be repurchased         
at $7,168,019 on 08-01-2007, collateralized         
by $6,029,174 US Treasury Bond, 7.500% due         
11-15-2016 (valued at $7,310,340, including         
interest)      7,167  7,167,000 
 
      Shares   
 
Cash Equivalents 1.98%        14,881,019 

John Hancock Cash Investment Trust (T)(W)      14,881,019  14,881,019 

Page 4


John Hancock
Bank and Thrift Opportunity Fund
Securities owned by the Fund on
July 31, 2007 (unaudited)

Total investments (Cost $482,364,134) 101.74%  $763,673,815 
Other assets and liabilities, net (1.74%)  ($13,046,296) 
Total net assets 100.00%  $750,627,519 

The percentage shown for each investment category is the total value of that category as a percentage of the net assets of the Fund.

Page 5


John Hancock
Bank and Thrift Opportunity Fund
Notes to Schedule of Investments
July 31, 2007 (unaudited)

(F) Parenthetical disclosure of a foreign country in the security description represents country of a foreign issuer; however, security is U.S. dollar-denominated.

(I) Non-income-producing security.

(L) All or a portion of this security is on loan as of July 31, 2007.

(T) Represents investment of securities lending collateral.

(W) Issuer is an affiliate of John Hancock Advisers, LLC.

The cost of investments owned on July 31, 2007, including short-term investments, was $482,364,134. Gross unrealized appreciation and depreciation of investments aggregated $301,998,265 and $20,688,584, respectively, resulting in net unrealized appreciation of $281,309,681.


Notes to Schedule of Investments

Security valuation

The net asset value of the common shares of the Fund is determined daily as of the close of the New York Stock Exchange (NYSE), normally at 4:00 P.M., Eastern Time. Short-term debt investments that have a remaining maturity of 60 days or less are valued at amortized cost, and thereafter assume a constant amortization to maturity of any discount or premium, which approximates market value. Investments in John Hancock Cash Investment Trust (JHCIT), an affiliate of John Hancock Advisers, LLC (the Adviser), a wholly owned subsidiary of John Hancock Financial Services, Inc., a subsidiary of Manulife Financial Corporation (MFC), are valued at their net asset value each business day. All other securities held by the Fund are valued at the last sale price or official closing price (closing bid price or last evaluated quote if no sale has occurred) as of the close of business on the principal securities exchange (domestic or foreign) on which they trade or, lacking any sales, at the closing bid price. Securities traded only in the over-the-counter market are valued at the last bid price quoted by brokers making markets in the securities at the close of trading. Securities for which there are no such quotations, principally debt securities, are valued based on the valuation provided by an independent pricing service, which utilizes both dealer-supplied and electronic data processing techniques, which take into account factors such as institutional-size trading in similar groups of securities, yield, quality, coupon rate, maturity, type of issue, trading characteristics and other market data.

Other assets and securities for which no such quotations are readily available are valued at fair value as determined in good faith under consistently applied procedures established by and under the general supervision of the Board of Trustees. Generally, trading in non-U.S. securities is substantially completed each day at various times prior to the close of trading on the NYSE. The values of such securities used in computing the net asset value of the Fund’s shares are generally determined as of such times. Occasionally, significant events that affect the values of such securities may occur between the times at which such values are generally determined and the close of the NYSE. Upon such an occurrence, these securities will be valued at fair value as determined in good faith under consistently applied procedures established by and under the general supervision of the Board of Trustees.

Joint repurchase agreement

Pursuant to an exemptive order issued by the Securities and Exchange Commission, the Fund, along with other registered investment companies having a management contract with John Hancock Advisers, LLC (the Adviser), a wholly owned subsidiary of John Hancock Financial Services, Inc., a subsidiary of Manulife Financial Corporation, may participate in a joint repurchase agreement transaction. Aggregate cash balances are invested in one or more large repurchase agreements, whose underlying securities are obligations of the U.S. government and/or its agencies. The Fund’s custodian bank receives delivery of the underlying securities for the joint account on the Fund’s behalf. The Adviser is responsible for ensuring that the agreement is fully collateralized at all times.

Securities lending

The Fund may lend securities in amounts up to 331Ú3% of the Fund’s total assets. Such loans are callable at any time and are at all times fully secured by cash, cash equivalents or securities issued or guaranteed by the U.S. government or its agencies or instrumentalities and marked-to-market on a daily basis. The Fund may bear the risk of delay in recovery of, or even of rights in, the securities loaned should the borrower of the securities fail financially. The Fund receives compensation for lending their securities either in the form of fees and/or by retaining a portion of interest on the investment of any cash received as collateral. The Fund invests the cash collateral received in connection with securities lending transactions in the JHCIT, a Delaware common law trust and an affiliated fund. JHCIT is exempt from registration under Section 3(c)(7) of the 1940 Act (pursuant to exemptive order issued by the SEC) and is managed by the Adviser, for which the Adviser receives an investment advisory fee of 0.04% of the average daily net assets of the JHCIT.

Notes to Schedule of Investments – Page 2


All collateral received will be in an amount equal to at least 100% of the market value of the loaned securities and is intended to be maintained at that level during the period of the loan. The market value of the loaned securities is determined at the close of business of the Fund and any additional required collateral is delivered to the Fund the next business day. During the loan period, the Fund continues to retain rights of ownership, including dividends and interest of the loaned securities.

Notes to Schedule of Investments – Page 3




ITEM 2. CONTROLS AND PROCEDURES.

(a) Based upon their evaluation of the registrant's disclosure controls and procedures as conducted within 90 days of the filing date of this Form N-Q, the registrant's principal executive officer and principal financial officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms.

(b) There were no changes in the registrant's internal control over financial reporting that occurred during the registrant's last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting.

ITEM 3. EXHIBITS.

Separate certifications for the registrant's principal executive officer and principal financial officer, as required by Rule 30a-2(a) under the Investment Company Act of 1940, are attached.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

John Hancock Bank and Thrift Opportunity Fund

By: /s/ Keith F. Hartstein
-------------------------------------
Keith F. Hartstein
President and
Chief Executive Officer

Date: September 14, 2007

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By: /s/ Keith F. Hartstein
-------------------------------------
Keith F. Hartstein
President and
Chief Executive Officer

Date: September 14, 2007

By: /s/ Charles A. Rizzo
-------------------------------------
Charles A. Rizzo
Chief Financial Officer

Date: September 14, 2007