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

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(AMENDMENT NO. _____1____)*

Market Vectors ETF Trust - Semiconductor
(Name of Issuer)

ETF
(Title of Class of Securities)

57060U233
(CUSIP Number)

*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Cusip No. 57060U233
13G
1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON 

                State of Wisconsin Investment Board
                      39-6006423
____________________________________________________________________________
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP  *
                                                                (a)____
                   Not Applicable                               (b)____
____________________________________________________________________________

3. SEC USE ONLY

4. CITZENSHIP OR PLACE OF ORGANIZATION
Madison, Wisconsin 
NUMBERS OF              5. SOLE VOTING POWER
SHARES                                  0
BENEFICIALLY          _______________________________________________________
OWNED BY                6. SHARED VOTING POWER
EACH                                    Not Applicable
REPORTING             _______________________________________________________
PERSON                  7. SOLE DISPOSITIVE POWER
WITH                                    0
                      _______________________________________________________
                        8. SHARED DISPOSITIVE POWER
                                        Not Applicable
____________________________________________________________________________
9.      AGGREGATE AMOUNT BENEFICALLY OWNED BY EACH REPORTING PERSON
                                        0
____________________________________________________________________________
10.     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
        SHARES *                        Not Applicable
____________________________________________________________________________
11.     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
                                        0.00%
____________________________________________________________________________
12.     TYPE OF REPORTING PERSON *

                EP (Public Pension Fund)
____________________________________________________________________________

* SEE INSTRUCTIONS BEFORE FILLING OUT!

ITEM 1. ISSUER
(a) Market Vectors ETF Trust - Semiconductor (b) 335 Madison Avenue; 19th Floor New York, NY 10017

ITEM 2. PERSON FILING
(a) State of Wisconsin Investment Board (b) 121 East Wilson Street Madison, WI 53703
(c) Wisconsin State Agency
(d) See cover page
(e) See cover page

ITEM 3. THIS STATEMENT IS FILED PURSUANT TO 13d-1(b) or 13d-2(b) AND THE
STATE OF WISCONSIN INVESTMENT BOARD IS A GOVERNMENT AGENCY WHICH MANAGES PUBLIC PENSION FUNDS SUBJECT TO PROVISIONS COMPARABLE TO ERISA.

ITEM 4. OWNERSHIP
(a) See Row 9 on Page 2
(b) See Row 11 on Page 2
(c) The State of Wisconsin Investment Board retains sole voting and dispositive power for all shares.

ITEM 5. IF THIS STATEMENT IS BEING FILED TO REPORT THE FACT THAT AS OF THE
DATE HEREOF THE REPORTING PERSON HAS CEASED TO BE THE BENEFICIAL OWNER OF MORE THAN FIVE PERCENT OF THE CLASS OF SECURITIES, CHECK THE FOLLOWING __X___.

ITEM 6. NOT APPLICABLE

ITEM 7. NOT APPLICABLE

ITEM 8. NOT APPLICABLE

ITEM 9. NOT APPLICABLE

ITEM 10. CERTIFICATION

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purpose or effect.

SIGNATURE

After reasonable inquiry to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

April 5, 2013
Date 

 /s/ David Villa
- - - - - - - - -
    Signature

David Villa, Chief Investment Officer - Investment Groups
Name/Title