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

                                    Form 13F
                               Form 13F COVER PAGE
Report for the Calendar Year or Quarter Ended: 3/31/2013
Check here if Amendment []; Amendment Number:
                                               -------
This Amendment (Check only one.):               [] is a restatement.
                                                [] adds new holdings entries.

Institutional Investment Manager Filing this Report:


Name:      SCS Capital Management, LLC

Address:   1 Winthrop Square
           Boston, MA 02110


Form 13F File Number: 028-14545


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 submission.

Persons Signing this Report on Behalf of Reporting Manager:

Name:   Joseph McCuine
Title:  Chief Operating Officer
Phone:  (617) 204-6400

Signature,  Place,  and  Date  of  Signing:

/s/ Joseph McCuine                 Boston, MA                         4/29/13
---------------------------------  ---------------------------------  ----------
[Signature]                        [City, State]                      [Date]



Report  Type  (Check  only  one):

[X]     13F HOLDINGS REPORT. (Check here if all holdings of this reporting
        manager are reported in this report.)

[ ]     13F NOTICE. (Check here if no holdings reported are in this report,
        and all holdings are reported by other reporting manager(s).)

[ ]     13F COMBINATION REPORT. (Check here if a portion of the holdings for
        this reporting manager are reported in this report and a portion are
        reported by other reporting manager(s).)

List of Other Managers Reporting for this Manager:






                              Form 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:                    0

Form 13F Information Table Entry Total:              12

Form 13F Information Table Value Total:  $      756,498
                                         --------------
                                         (In Thousands)


List of Other Included Managers:

Provide a numbered list of the name(s) and 13F file number(s) of all
institutional investment managers with respect to which this report is filed,
other than the manager filing this report.
NONE








                                                          FORM 13F INFORMATION TABLE

          COLUMN 1                 COLUMN 2      COLUMN 3 COLUMN 4      COLUMN 5       COLUMN 6  COLUMN 7       COLUMN 8
------------------------------ ---------------- --------- -------- ------------------ ---------- --------  --------------------
                                                           VALUE    SHRS OR  SH/ PUT/ INVESTMENT  OTHER     VOTING  AUTHORITY
       NAME OF ISSUER           TITLE OF CLASS    CUSIP   (x$1000)  PRN AMT  PRN CALL DISCRETION MANAGERS   SOLE    SHARED NONE
------------------------------ ---------------- --------- -------- --------- --- ---- ---------- --------  -------- ------ ----
                                                                                          
EGA EMERGING GLOBAL SHS TR     EGS EMKTCONS ETF 268461779    33647   1265417 SH       SOLE	            1265417      0    0
ISHARES GOLD TRUST             ISHARES          464285105     2882    185712 SH       SOLE                   185712      0    0
ISHARES TR                     CORE TOTUSBD ETF 464287226    57111    515771 SH       SOLE                   515771      0    0
ISHARES TR                     MSCI ACWI EX     464288240     2179     50834 SH       SOLE                    50834      0    0
ISHARES TR                     MSCI EAFE INDEX  464287465   101596   1772543 SH       SOLE                  1772543      0    0
ISHARES TR                     MSCI EMERG MKT   464287234      415      9711 SH       SOLE                     9711      0    0
ISHARES TR                     RUSSELL 3000     464287689   117911   1261620 SH	      SOLE                  1261620      0    0
ISHARES TR                     S&P NA NAT RES   464287374     1233     30388 SH       SOLE                    30388      0    0
PIMCO ETF TR                   TOTL RETN ETF    72201R775      924      8413 SH       SOLE                     8413      0    0
SPDR GOLD TRUST                GOLD SHS         78463V107   287281   1859787 SH       SOLE                  1859787      0    0
SPDR S&P 500 ETF TR            TR UNIT          78462F10      6820     43533 SH       SOLE                    43533      0    0
VANGUARD INTL EQUITY INDEX F   MSCI EMR MKT ETF 922042858   144499   3368673 SH       SOLE                  3368673      0    0