United States
Securities and Exchange Commission
Washington, DC  20549

Form 13 F

Report for the Calendar Year or Quarter Ended:			March 31, 2011

Report type:	13F Holdings Report

Institutional Investment Manager Filing this Report:

Name:		Lockheed Martin Investment Management Company
		6901 Rockledge Drive, 4th Floor
		Bethesda, MD  20817

13F File Number #28-2847

Person signing this report on behalf of Reporting Manager:

Name:		Christopher K. Li
Title:		President and Chief Investment Officier
Phone:		301-571-7123

Signature, Place, and Date of Signing:

Christopher K. Li,	Bethesda, MD	April 27, 2011




I am signing this report as required by the Securities Exchange Act of 1934.


							   FORM 13F
						     	March 31, 2011


                                                                  FORM 13F INFORMATION TABLE
                                                           VALUE   SHARES/  SH/ PUT/ INVSTMT    OTHER          VOTING AUTHORITY
        NAME OF ISSUER          TITLE OF CLASS    CUSIP   (x$1000) PRN AMT  PRN CALL DSCRETN   MANAGERS     SOLE    SHARED    NONE
------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- --------
                                                                                           
ALEXION PHARMACEUTICALS, INC.  COM              015351109     1480    15000 SH       SOLE                    15000
ALLERGAN INC.                  COM              018490102     7940   111800 SH       SOLE                   111800
AMAZON.COM INC.                COM              023135106     1045     5800 SH       SOLE                     5800
AT&T INC                       COM              00206R102     6428   210000 SH       SOLE                   210000
CISCO SYSTEMS INC              COM              17275R102     2477   144440 SH       SOLE                   144440
COVIDIEN                       COM              G2554F113     2597    50000 SH       SOLE                    50000
ELECTRONIC ARTS                COM              285512109     2148   110000 SH       SOLE                   110000
EXXON                          COM              30231G102     9338   111000 SH       SOLE                   111000
GENERAL ELECTRIC CO.           COM              369604103     4010   200000 SH       SOLE                   200000
GOOGLE INC - CL A              COM              38259P508     6452    10996 SH       SOLE                    10996
INTEL CORP                     COM              458140100     4116   203960 SH       SOLE                   203960
INTUTIVE SURGICAL, INC.        COM              46120E602     4002    12000 SH       SOLE                    12000
MERCK & CO. INC.               COM              58933Y105     3004    91000 SH       SOLE                    91000
MICROSOFT CORP                 COM              594918104     4392   173000 SH       SOLE                   173000
ORACLE CORP                    COM              68389X105     8024   240000 SH       SOLE                   240000
PETROLEO BRASILEIRO S.A.-ADR   COM              71654V408    20215   500000 SH       SOLE                   500000
VERIZON COMMUNICATION INC.     COM              92343V104     7323   190000 SH       SOLE                   190000
VMWARE INC-CLASS A             COM              928563402     2446    30000 SH       SOLE                    30000
YUM BRANDS INC                 COM              988498101     4213    82000 SH       SOLE                    82000
CONSUMER STAPLES SPDR          ETF              81369Y308    77538  2591500 SH       SOLE                  2591500
IPATH MSCI INDIA INDEX         ETF              06739F291     8728   120000 SH       SOLE                   120000
NASDAQ 100 MFC POWERSHARES     ETF              73935A104    67050  1167500 SH       SOLE                  1167500
OIL SERVICES HOLDRs            ETF              678002106     9862    60000 SH       SOLE                    60000
RUSSELL 2000 INDEX FUND        ETF              464287655    53195   632000 SH       SOLE                   632000
SELECT SECTOR SPDR-CONSUMER DI ETF              81369Y407    95672  2450000 SH       SOLE                  2450000
SELECT SECTOR SPDR-ENERGY      ETF              81369Y506   117232  1470000 SH       SOLE                  1470000
SELECT SECTOR SPDR-FINANCIAL   ETF              81369Y605   197431 12045800 SH       SOLE                 12045800
SELECT SECTOR SPDR-HEALTH CARE ETF              81369Y209    82775  2500000 SH       SOLE                  2500000
SELECT SECTOR SPDR-INDUSTRIAL  ETF              81369Y704   102147  2712000 SH       SOLE                  2712000
SELECT SECTOR SPDR-MATERIALS   ETF              81369Y100    35738   893000 SH       SOLE                   893000
SELECT SECTOR SPDR-TECHNOLOGY  ETF              81369Y803    66355  2546000 SH       SOLE                  2546000
SELECT SECTOR SPDR-UTILITIES   ETF              81369Y886    13608   427000 SH       SOLE                   427000
SPDR-S&P 500 INDEX             ETF              78462F103     5436    41000 SH       SOLE                    41000