SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

 
FORM 6-K
 
REPORT OF FOREIGN ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 OF THE
SECURITIES EXCHANGE ACT OF 1934

For the month of July, 2018

(Commission File No. 001-33356),

 
Gafisa S.A.
(Translation of Registrant's name into English)

 
Av. Nações Unidas No. 8501, 19th floor
São Paulo, SP, 05425-070
Federative Republic of Brazil
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file
annual reports under cover Form 20-F or Form 40-F.

Form 20-F ___X___ Form 40-F ______

Indicate by check mark if the registrant is submitting
the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1) 

Yes ______ No ___X___

Indicate by check mark if the registrant is submitting
the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):
Yes ______ No ___X___
Indicate by check mark whether by furnishing the information contained in this Form,
the Registrant is also thereby furnishing the information to the Commission pursuant
to Rule 12g3-2(b) under the Securities Exchange Act of 1934:
Yes ______ No ___X___
If “Yes” is marked, indicate below the file number assigned
to the registrant in connection with Rule 12g3-2(b): N/A

 

 
GAFISA S.A.
CNPJ/MF n ° 01.545.826/0001-07
NIRE 35.300.147.952
Publicly-Held Company
 
NOTICE TO MARKET

São Paulo, SP, Brazil, July 12 th , 2018 - GAFISA S.A. (BOVESPA: GFSA3) (“Gafisa” or “Company”), on July 11 th announced to shareholders and the market that credit rating agency S&P Global Ratings (“ S&P ”) changed the Company’s credit rating at a national scale from  “brBB-” to “brBBB”.
 
The rating review, according to S&P, was made due to the implementation of the new metodology and the ratings’ mapping table in the Brazil National Scale, disclosed on June 25 th , 2018.
 
For aditional information, please contact the Company’s Investor Relations Department.

 
 
São Paulo, July 12 th , 2018.

GAFISA S.A.
Carlos Calheiros
Chief Financial and Investor Relations Officer

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
Date: July 12, 2018
 
Gafisa S.A.	

By:	/s/ Sandro Gamba
	
 	Name:   Sandro Gamba
Title:     Chief Executive Officer