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Filing Detail
Form 485BPOS - Post-effective amendment [Rule 485(b)]
SEC Accession No. 0001104659-13-022540
Filing Date
2013-03-20
Accepted
2013-03-20 14:18:51
Documents
8
Filing Date Changed
2013-03-20
Effectiveness Date
2013-03-20

Document Format Files

Seq Description Document Type Size
1 POST-EFFECTIVE AMENDMENT FILED PURSUANT TO SECURITIES ACT RULE 485(B) a13-4294_5485bpos.htm 485BPOS 106576
9 GRAPHIC g42945bci001.jpg GRAPHIC 6424
  Complete submission text file 0001104659-13-022540.txt   1588797

Data Files

Seq Description Document Type Size
2 XBRL INSTANCE DOCUMENT ck0000063075-20130227.xml EX-101.INS 80927
3 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT ck0000063075-20130227.xsd EX-101.SCH 9456
4 XBRL TAXONOMY EXTENSION LABELS LINKBASE DOCUMENT ck0000063075-20130227_lab.xml EX-101.LAB 184319
5 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT ck0000063075-20130227_def.xml EX-101.DEF 155820
6 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT ck0000063075-20130227_pre.xml EX-101.PRE 178461
7 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT ck0000063075-20130227_cal.xml EX-101.CAL 4987

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000063075      
Series S000002493   MFS Inflation-Adjusted Bond Fund
Class/Contract C000006724   A MIAAX
Class/Contract C000006725   R4 MIAJX
Class/Contract C000006726   B MIABX
Class/Contract C000006727   C MIACX
Class/Contract C000006728   I MIAIX
Class/Contract C000006730   R1 MIALX
Class/Contract C000006732   R2 MIATX
Class/Contract C000006733   R3 MIAHX
Class/Contract C000126364   R5 MIAKX
Mailing Address 111 HUNTINGTON AVENUE 24TH FLOOR BOSTON MA 02199
Business Address 111 HUNTINGTON AVENUE 24TH FLOOR BOSTON MA 02199 18006372929
MFS SERIES TRUST IX /MA/ (Filer) CIK: 0000063075 (see all company filings)

IRS No.: 042535629 | State of Incorp.: MA | Fiscal Year End: 0430
Type: 485BPOS | Act: 33 | File No.: 002-50409 | Film No.: 13704485

Mailing Address 111 HUNTINGTON AVENUE 24TH FLOOR BOSTON MA 02199
Business Address 111 HUNTINGTON AVENUE 24TH FLOOR BOSTON MA 02199 18006372929
MFS SERIES TRUST IX /MA/ (Filer) CIK: 0000063075 (see all company filings)

IRS No.: 042535629 | State of Incorp.: MA | Fiscal Year End: 0430
Type: 485BPOS | Act: 40 | File No.: 811-02464 | Film No.: 13704486