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

                                    FORM 13F

                               FORM 13F COVER PAGE

Report for the Calendar Quarter Ended March 31, 2011

Check here if Amendment; [_] Amendment Number:

This Amendment (Check [_] is a restatement
only one);            [_] adds new holdings entries

Institutional Investment Manager Filing this Report:

Name:                   Diamond Capital Management Inc.
Address:                Dorinco 100
                        Midland, MI 48674
13F File Number:        28-7248

The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:                  Kenneth J. Van Heel
Title:                 President, Diamond Capital Management Inc.
Phone:                 989-636-1915

Signature, Place, and Date of Signing:


/S/ KENNETH J. VAN HEEL,        MIDLAND,  MICHIGAN,   (April 25, 2011)
Report Type (Check one only):

[X]  13F HOLDINGS REPORT
[_]  13F NOTICE
[_]  13F COMBINATION REPORT

List of Other Managers
Reporting for this Manager:
I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES AND EXCHANGE ACT OF 1934.

                              FORM 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:      0
Form 13F Information Table Entry Total: 70
Form 13F Information table Value Total(x 1000): $830,932




For Period Ending: 3/31/2011

                                    FORM 13F
           Name of Reporting Manager: Diamond Capital Management Inc.



ITEM 1:                     ITEM 2:    ITEM 3:  ITEM 4:  ITEM 5:                    ITEM 6:         ITEM 7:        ITEM 8:
------------------------ ------------ --------- ------- ---------           ---------------------- -------- ---------------------
                                                                            INVESTMENT DISCRETION             VOTING AUTHORITY
                                                                            ----------------------          ---------------------
                             TITLE      CUSIP    MARKET    FAIR   CALL  (A) (B) SHARED (C)(SHARED-             (A)      (B)   (C)
NAME OF ISSUER             OF CLASS     NUMBER   VALUE    SHARES  /PUT SOLE AS DEFINED    OTHER    MANAGERS    SOLE   SHARED NONE
------------------------ ------------ --------- ------- --------- ---- ---- ---------- ----------- -------- --------- ------ ----
                                                                                         
IShares MSCI
 Emerging Market         Common Stock 464287234 169,649 3,485,698        X                                  3,485,698
SPDR TR                  Common Stock 78462F103 164,939 1,243,978        X                                  1,243,978
ISHARES S&P 500
 INDEX FUND              Common Stock 464287200  72,678   546,412        X                                    546,412
ENERGY SELECT
 SECTOR SPDR             Common Stock 81369Y506  53,477   670,563        X                                    670,563
SPDR FINANCIAL
 INDEX                   Common Stock 81369Y605  34,789 2,122,603        X                                  2,122,603
VANGUARD EMERGING
    MARKETS ETF          Common Stock 922042858  31,868   651,022        X                                    651,022
SPDR INDUSTRIAL          Common Stock 81369Y704  25,164   668,107        X                                    668,107
VANGUARD LARGE CAPE      Common Stock 922908637  24,916   410,000        X                                    410,000
MONSANTO CO              Common Stock 61166W101   8,967   124,095        X                                    124,095
BANKAMERICA CORP         Common Stock 060505104   8,731   655,000        X                                    655,000
NABORS INDUSTRIES        Common Stock G6359F103   8,506   280,000        X                                    280,000
SPDR TECHNOLOGY
 INDEX                   Common Stock 81369Y803   8,446   324,082        X                                    324,082
SPDR CONSUMER
 STAPLES                 Common Stock 81369Y308   8,314   277,876        X                                    277,876
CISCO SYS INC            Common Stock 17275R102   7,961   464,200        X                                    464,200
Intercontinental
  Exchange Inc.          Common Stock 45865V100   7,907    64,000        X                                     64,000
Jacobs Engineering Group
  Inc.                   Common Stock 469814107   7,509   146,000        X                                    146,000
VALERO ENERGY            Common Stock 91913Y100   7,246   243,000        X                                    243,000
SYMANTEC CORP            Common Stock 871503108   6,919   373,200        X                                    373,200
The Mosaic Company       Common Stock 61945A107   6,898    87,600        X                                     87,600
Archer-Daniels-
  Midland Company        Common Stock 039483102   6,482   180,000        X                                    180,000
MICROSOFT CORP           Common Stock 594918104   6,269   246,900        X                                    246,900
BOSTON SCIENTIFIC
 CORPORATION             Common Stock 101137107   6,191   861,000        X                                    861,000
GENERAL MOTORS Co.       Common Stock 37045V100   5,958   192,000        X                                    192,000
MARATHON OIL
 CORPORATION             Common Stock 565849106   5,864   110,000        X                                    110,000
SPDR HEALTH CARE         Common Stock 81369Y209   5,855   176,821        X                                    176,821
CME Group Inc.           Common Stock 12572Q105   5,850    19,400        X                                     19,400
Petroleo Brasileiro S.A. Common Stock 71654V408   5,660   140,000        X                                    140,000
NOKIA CORP               Common Stock 654902204   5,244   616,200        X                                    616,200
Marvell Technology Group
  Ltd                    Common Stock G5876H105   5,054   325,000        X                                    325,000
Gilead Sciences, Inc.    Common Stock 375558103   4,986   117,400        X                                    117,400
SPDR UTILITIES
 INDEX                   Common Stock 81369Y886   4,893   153,533        X                                    153,533
USX - U.S. STEEL
 GROUP                   Common Stock 912909108   4,768    88,400        X                                     88,400
AT&T CORP                Common Stock 00206R102   4,591   150,000        X                                    150,000
ENSCO PLC                Common Stock 29358Q109   4,512    78,000        X                                     78,000
BUNGE LIMITED            Common Stock G16962105   4,340    60,000        X                                     60,000
Nucor Corporation        Common Stock 670346105   4,326    94,000        X                                     94,000
NVIDIA CORPORATION       Common Stock 67066G104   4,264   231,000        X                                    231,000
INSULET                  Common Stock 45784P101   4,254   206,315        X                                    206,315
AETNA INC                Common Stock 00817Y108   4,211   112,500        X                                    112,500
MASCO CORP               Common Stock 574599106   4,047   290,700        X                                    290,700
GOOGLE INCORPORATED      Common Stock 38259P508   3,873     6,600        X                                      6,600
AMR CORP                 Common Stock 001765106   3,839   594,200        X                                    594,200
MERCK & CO INC           Common Stock 58933Y105   3,136    95,000        X                                     95,000
MOTOROLA SOLUTIONS INC   Common Stock 620076307   3,094    69,243        X                                     69,243
GAP INC DEL              Common Stock 364760108   2,946   130,000        X                                    130,000
Covidien PLC             Common Stock G2554F113   2,867    55,200        X                                     55,200
CITIGROUP INC            Common Stock 172967101   2,652   600,000        X                                    600,000
ENTROPIC
 COMMUNICATIONS          Common Stock 29384R105   2,589   306,444        X                                    306,444
Consumer Discretionary
  Select Sector SP       Common Stock 81369Y407   2,571    65,827        X                                     65,827
MATERIALS SELECT
SECTOR SPDR              Common Stock 81369Y100   2,361    59,005        X                                     59,005
ARCH COAL, INC           Common Stock 039380100   2,325    64,500        X                                     64,500
RESEARCH IN MOTION       Common Stock 760975102   2,290    40,500        X                                     40,500
The Hartford Financial
  Services Group         Common Stock 416515104   2,154    80,000        X                                     80,000
JP MORGAN CHASE & CO     Common Stock 46625H100   2,075    45,000        X                                     45,000
PATRIOT COAL
  CORPORATION            Common Stock 70336T104   2,066    80,000        X                                     80,000
MEDTRONIC INC            Common Stock 585055106   1,949    49,530        X                                     49,530
NEUROGESX INC            Common Stock 641252101   1,859   459,032        X                                    459,032
AES CORP                 Common Stock 00130H105   1,495   115,000        X                                    115,000
ADOBE SYSTEMS INC.       Common Stock 00724F101   1,492    45,000        X                                     45,000
Motorola Mobility
  Holdings Inc.          Common Stock 620097105   1,477    60,550        X                                     60,550
SUNPOWER
  CORPORATION            Common Stock 867652109   1,383    80,700        X                                     80,700
CORNING INC.             Common Stock 219350105   1,320    64,000        X                                     64,000
AMERICAN INTLE GROUP INC Common Stock 026874107   1,230    35,000        X                                     35,000
APPLE COMPUTER INC       Common Stock 037833100   1,115     3,200        X                                      3,200
ALCATEL-LUCENT           Common Stock 013904305     988   170,000        X                                    170,000
Mylan Inc.               Common Stock 628530107     913    40,300        X                                     40,300
BROADCAM CORPORATION     Common Stock 111320107     788    20,000        X                                     20,000
DELL COMPUTER CORP       Common Stock 24702R101     653    45,000        X                                     45,000
CONSOL Energy Inc.       Common Stock 20854P109     590    11,000        X                                     11,000
Allegheny Technologies,
  Inc.                   Common Stock 01741R102     339     5,000        X                                      5,000
                                                -------
COLUMN TOTALS                                   830,932
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