0000035315 2011-12-12 2012-12-11 0000035315 fsst5:S000033639Member fsst5:InstMember 2011-12-12 2012-12-11 0000035315 fsst5:S000033637Member fsst5:InvAdvMember 2011-12-12 2012-12-11 0000035315 fsst5:S000033637Member fsst5:InstAdvInstMember 2011-12-12 2012-12-11 0000035315 fsst5:S000033638Member fsst5:InvAdvMember 2011-12-12 2012-12-11 0000035315 fsst5:S000033638Member fsst5:InstAdvInstMember 2011-12-12 2012-12-11 0000035315 fsst5:S000017676Member fsst5:InvAdvMember 2011-12-12 2012-12-11 0000035315 fsst5:S000017677Member fsst5:InvAdvMember 2011-12-12 2012-12-11 0000035315 fsst5:S000017678Member fsst5:InvAdvMember 2011-12-12 2012-12-11 0000035315 fsst5:S000017679Member fsst5:InvAdvMember 2011-12-12 2012-12-11 0000035315 fsst5:S000033635Member fsst5:InvAdvMember 2011-12-12 2012-12-11 0000035315 fsst5:S000033636Member fsst5:InvAdvMember 2011-12-12 2012-12-11 0000035315 fsst5:S000033635Member fsst5:InstAdvInstMember 2011-12-12 2012-12-11 0000035315 fsst5:S000033636Member fsst5:InstAdvInstMember 2011-12-12 2012-12-11 0000035315 fsst5:S000037003Member fsst5:InvAdvMember 2011-12-12 2012-12-11 0000035315 fsst5:S000033639Member fsst5:InvAdvMember 2011-12-12 2012-12-11 FIDELITY SALEM STREET TRUST 0000035315 2012-12-11 2012-12-11 Other false 2012-12-11 2012-12-11 Supplement to the Spartan® Real Estate Index Fund Institutional Class September 29, 2012 Prospectus Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section on page 3. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="2" align="left"> Shareholder fees (fees paid directly from your investment) </td></tr> <tr> <td valign="bottom" align="left"> Redemption fee on shares held less than 90 days (as a % of amount redeemed) </td> <td valign="bottom" align="right"> 0.75% </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.14% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.02% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expensesA </td> <td valign="bottom" align="right"> 0.16% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursementB </td> <td valign="bottom" align="right"> 0.08% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursementA </td> <td valign="bottom" align="right"> 0.08% </td></tr></table> A Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. For the period, acquired fund fees and expenses are less than 0.01% and are included in other expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitations of the class. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of its average net assets, exceed 0.07%. This arrangement will remain in effect through September 30, 2014. FMR may not terminate this arrangement before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section on page 4. <table border="1" width="95%"> <tr> <td valign="top" align="left"> 1 year </td> <td valign="top" align="right"> $ 8 </td></tr> <tr> <td valign="top" align="left"> 3 years </td> <td valign="top" align="right"> $ 37 </td></tr> <tr> <td valign="top" align="left"> 5 years </td> <td valign="top" align="right"> $ 76 </td></tr> <tr> <td valign="top" align="left"> 10 years </td> <td valign="top" align="right"> $ 190 </td></tr></table> Supplement to the Spartan® Index Funds Spartan Mid Cap Index Fund and Spartan Small Cap Index Fund Investor Class and Fidelity Advantage® Class June 29, 2012 Prospectus Effective January 1, 2013, the following information replaces the similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Mid Cap Index Fund on page 3. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="4" align="left"> Shareholder fees (fees paid directly from your investment) </td></tr> <tr> <td valign="top" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage® Class</td></tr> <tr> <td valign="bottom" align="left"> Redemption fee on shares held less than 30 days (as a % of amount redeemed) </td> <td valign="bottom" align="right"> 0.75% </td> <td valign="top" align="center">   </td> <td valign="bottom" align="right"> 0.75% </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.12% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.12% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.21% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.08% </td></tr> <tr> <td valign="bottom" align="left"> Acquired fund fees and expenses </td> <td valign="bottom" align="right"> 0.02% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.02% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses A </td> <td valign="bottom" align="right"> 0.35% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.22% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursement </td> <td valign="bottom" align="right"> 0.11% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.12% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursement B </td> <td valign="bottom" align="right"> 0.24% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr></table> A Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitations of the class. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Investor Class and Fidelity Advantage Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.22% and 0.08%. These arrangements will remain in effect through June 30, 2014. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Mid Cap Index Fund on page 4. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 25 </td> <td valign="bottom" align="right"> $ 10 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 95 </td> <td valign="bottom" align="right"> $ 52 </td></tr> <tr> <td valign="bottom" align="left"> 5 years </td> <td valign="bottom" align="right"> $ 180 </td> <td valign="bottom" align="right"> $ 105 </td></tr> <tr> <td valign="bottom" align="left"> 10 years </td> <td valign="bottom" align="right"> $ 427 </td> <td valign="bottom" align="right"> $ 262 </td></tr></table> Effective January 1, 2013, the following information replaces the similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Small Cap Index Fund on page 7. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="4" align="left"> Shareholder fees (fees paid directly from your investment) </td></tr> <tr> <td valign="top" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Fidelity Advantage® Class</td></tr> <tr> <td valign="bottom" align="left"> Redemption fee on shares held less than 90 days (as a % of amount redeemed) </td> <td valign="bottom" align="right"> 1.50% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 1.50% </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.15% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.15% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.21% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.08% </td></tr> <tr> <td valign="bottom" align="left"> Acquired fund fees and expenses </td> <td valign="bottom" align="right"> 0.07% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.07% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses A </td> <td valign="bottom" align="right"> 0.43% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.30% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursement </td> <td valign="bottom" align="right"> 0.13% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.14% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursement B </td> <td valign="bottom" align="right"> 0.30% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.16% </td></tr></table> A Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitations of the class. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Investor Class and Fidelity Advantage Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.23% and 0.09%. These arrangements will remain in effect through June 30, 2014. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Small Cap Index Fund on page 8. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 31 </td> <td valign="bottom" align="right"> $ 16 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 118 </td> <td valign="bottom" align="right"> $ 75 </td></tr> <tr> <td valign="bottom" align="left"> 5 years </td> <td valign="bottom" align="right"> $ 221 </td> <td valign="bottom" align="right"> $ 147 </td></tr> <tr> <td valign="bottom" align="left"> 10 years </td> <td valign="bottom" align="right"> $ 523 </td> <td valign="bottom" align="right"> $ 360 </td></tr></table> Supplement to the Spartan® Index Funds Spartan Mid Cap Index Fund and Spartan Small Cap Index Fund Institutional Class and Fidelity Advantage® Institutional Class June 29, 2012 Prospectus Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Mid Cap Index Fund on page 3. Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.12% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.12% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.02% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.00% </td></tr> <tr> <td valign="bottom" align="left"> Acquired fund fees and expenses </td> <td valign="bottom" align="right"> 0.02% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.02% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expensesA </td> <td valign="bottom" align="right"> 0.16% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.14% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursement </td> <td valign="bottom" align="right"> 0.08% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.08% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursement B </td> <td valign="bottom" align="right"> 0.08% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.06% </td></tr></table> A Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitations of the class. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class and Fidelity Advantage Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.06% and 0.04%. These arrangements will remain in effect through June 30, 2014. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Mid Cap Index Fund on page 4. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 8 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 6 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 39 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 33 </td></tr> <tr> <td valign="bottom" align="left"> 5 years </td> <td valign="bottom" align="right"> $ 78 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 67 </td></tr> <tr> <td valign="bottom" align="left"> 10 years </td> <td valign="bottom" align="right"> $ 192 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 167 </td></tr></table> Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Small Cap Index Fund on page 7. Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.15% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.15% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.02% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.00% </td></tr> <tr> <td valign="bottom" align="left"> Acquired fund fees and expenses </td> <td valign="bottom" align="right"> 0.07% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.07% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expensesA </td> <td valign="bottom" align="right"> 0.24% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.22% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursement </td> <td valign="bottom" align="right"> 0.10% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursement B </td> <td valign="bottom" align="right"> 0.14% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.12% </td></tr></table> A Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitations of the class. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class and Fidelity Advantage Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.07% and 0.05%. These arrangements will remain in effect through June 30, 2014. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Small Cap Index Fund on page 8. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 14 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 12 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 62 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 55 </td></tr> <tr> <td valign="bottom" align="left"> 5 years </td> <td valign="bottom" align="right"> $ 120 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 108 </td></tr> <tr> <td valign="bottom" align="left"> 10 years </td> <td valign="bottom" align="right"> $ 290 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 265 </td></tr></table> Supplement to the Spartan® Index Funds Spartan Mid Cap Index Fund and Spartan Small Cap Index Fund Investor Class and Fidelity Advantage® Class June 29, 2012 Prospectus Effective January 1, 2013, the following information replaces the similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Mid Cap Index Fund on page 3. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="4" align="left"> Shareholder fees (fees paid directly from your investment) </td></tr> <tr> <td valign="top" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage® Class</td></tr> <tr> <td valign="bottom" align="left"> Redemption fee on shares held less than 30 days (as a % of amount redeemed) </td> <td valign="bottom" align="right"> 0.75% </td> <td valign="top" align="center">   </td> <td valign="bottom" align="right"> 0.75% </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.12% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.12% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.21% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.08% </td></tr> <tr> <td valign="bottom" align="left"> Acquired fund fees and expenses </td> <td valign="bottom" align="right"> 0.02% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.02% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses A </td> <td valign="bottom" align="right"> 0.35% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.22% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursement </td> <td valign="bottom" align="right"> 0.11% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.12% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursement B </td> <td valign="bottom" align="right"> 0.24% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr></table> A Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitations of the class. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Investor Class and Fidelity Advantage Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.22% and 0.08%. These arrangements will remain in effect through June 30, 2014. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Mid Cap Index Fund on page 4. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 25 </td> <td valign="bottom" align="right"> $ 10 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 95 </td> <td valign="bottom" align="right"> $ 52 </td></tr> <tr> <td valign="bottom" align="left"> 5 years </td> <td valign="bottom" align="right"> $ 180 </td> <td valign="bottom" align="right"> $ 105 </td></tr> <tr> <td valign="bottom" align="left"> 10 years </td> <td valign="bottom" align="right"> $ 427 </td> <td valign="bottom" align="right"> $ 262 </td></tr></table> Effective January 1, 2013, the following information replaces the similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Small Cap Index Fund on page 7. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="4" align="left"> Shareholder fees (fees paid directly from your investment) </td></tr> <tr> <td valign="top" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Fidelity Advantage® Class</td></tr> <tr> <td valign="bottom" align="left"> Redemption fee on shares held less than 90 days (as a % of amount redeemed) </td> <td valign="bottom" align="right"> 1.50% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 1.50% </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.15% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.15% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.21% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.08% </td></tr> <tr> <td valign="bottom" align="left"> Acquired fund fees and expenses </td> <td valign="bottom" align="right"> 0.07% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.07% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses A </td> <td valign="bottom" align="right"> 0.43% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.30% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursement </td> <td valign="bottom" align="right"> 0.13% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.14% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursement B </td> <td valign="bottom" align="right"> 0.30% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.16% </td></tr></table> A Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitations of the class. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Investor Class and Fidelity Advantage Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.23% and 0.09%. These arrangements will remain in effect through June 30, 2014. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Small Cap Index Fund on page 8. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 31 </td> <td valign="bottom" align="right"> $ 16 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 118 </td> <td valign="bottom" align="right"> $ 75 </td></tr> <tr> <td valign="bottom" align="left"> 5 years </td> <td valign="bottom" align="right"> $ 221 </td> <td valign="bottom" align="right"> $ 147 </td></tr> <tr> <td valign="bottom" align="left"> 10 years </td> <td valign="bottom" align="right"> $ 523 </td> <td valign="bottom" align="right"> $ 360 </td></tr></table> Supplement to the Spartan® Index Funds Spartan Mid Cap Index Fund and Spartan Small Cap Index Fund Institutional Class and Fidelity Advantage® Institutional Class June 29, 2012 Prospectus Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Mid Cap Index Fund on page 3. Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.12% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.12% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.02% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.00% </td></tr> <tr> <td valign="bottom" align="left"> Acquired fund fees and expenses </td> <td valign="bottom" align="right"> 0.02% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.02% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expensesA </td> <td valign="bottom" align="right"> 0.16% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.14% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursement </td> <td valign="bottom" align="right"> 0.08% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.08% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursement B </td> <td valign="bottom" align="right"> 0.08% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.06% </td></tr></table> A Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitations of the class. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class and Fidelity Advantage Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.06% and 0.04%. These arrangements will remain in effect through June 30, 2014. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Mid Cap Index Fund on page 4. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 8 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 6 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 39 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 33 </td></tr> <tr> <td valign="bottom" align="left"> 5 years </td> <td valign="bottom" align="right"> $ 78 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 67 </td></tr> <tr> <td valign="bottom" align="left"> 10 years </td> <td valign="bottom" align="right"> $ 192 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 167 </td></tr></table> Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Small Cap Index Fund on page 7. Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.15% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.15% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.02% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.00% </td></tr> <tr> <td valign="bottom" align="left"> Acquired fund fees and expenses </td> <td valign="bottom" align="right"> 0.07% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.07% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expensesA </td> <td valign="bottom" align="right"> 0.24% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.22% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursement </td> <td valign="bottom" align="right"> 0.10% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursement B </td> <td valign="bottom" align="right"> 0.14% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.12% </td></tr></table> A Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitations of the class. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class and Fidelity Advantage Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.07% and 0.05%. These arrangements will remain in effect through June 30, 2014. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section for Spartan Small Cap Index Fund on page 8. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 14 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 12 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 62 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 55 </td></tr> <tr> <td valign="bottom" align="left"> 5 years </td> <td valign="bottom" align="right"> $ 120 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 108 </td></tr> <tr> <td valign="bottom" align="left"> 10 years </td> <td valign="bottom" align="right"> $ 290 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 265 </td></tr></table> Supplement to the Spartan® U.S. Bond Index Fund Investor Class and Fidelity Advantage® Class October 30, 2012 Prospectus Effective January 1, 2013, the following information replaces the similar information under the heading "Fee Table" in the "Fund Summary" section on page 3. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="3" align="left"> Shareholder fees (fees paid directly from your investment) </td> <td valign="bottom" align="right"> None </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.05% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.05% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.17% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.12% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses </td> <td valign="bottom" align="right"> 0.22% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.17% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursement A </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.07% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursement </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr></table> A Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Fidelity Advantage Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of its average net assets, exceed 0.10%. This arrangement will remain in effect through October 31, 2014. FMR may not terminate this arrangement before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information under the heading "Fee Table" in the "Fund Summary" section on page 4. <table border="1" width="95%"> <tr> <td valign="top" align="center">  </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="top" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="top" align="left"> 1 year </td> <td valign="top" align="right"> $ 23 </td> <td valign="top" align="right">   </td> <td valign="top" align="right"> $ 10 </td></tr> <tr> <td valign="top" align="left"> 3 years </td> <td valign="top" align="right"> $ 71 </td> <td valign="top" align="right">   </td> <td valign="top" align="right"> $ 41 </td></tr> <tr> <td valign="top" align="left"> 5 years </td> <td valign="top" align="right"> $ 124 </td> <td valign="top" align="right">   </td> <td valign="top" align="right"> $ 83 </td></tr> <tr> <td valign="top" align="left"> 10 years </td> <td valign="top" align="right"> $ 280 </td> <td valign="top" align="right">   </td> <td valign="top" align="right"> $ 204 </td></tr></table> Supplement to the Spartan® Treasury Bond Index Funds Investor Class and Fidelity Advantage® Class April 28, 2012 Prospectus Effective January 1, 2013, for each fund, the following information replaces the similar information under the heading "Shareholder fees" under the heading "Fee Table" in each "Fund Summary" section. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="7" align="left"> Shareholder fees (fees paid directly from your investment) </td> <td valign="bottom" align="right"> None </td></tr></table> Supplement to the Spartan® Treasury Bond Index Funds Investor Class and Fidelity Advantage® Class April 28, 2012 Prospectus Effective January 1, 2013, for each fund, the following information replaces the similar information under the heading "Shareholder fees" under the heading "Fee Table" in each "Fund Summary" section. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="7" align="left"> Shareholder fees (fees paid directly from your investment) </td> <td valign="bottom" align="right"> None </td></tr></table> Supplement to the Spartan® Treasury Bond Index Funds Investor Class and Fidelity Advantage® Class April 28, 2012 Prospectus Effective January 1, 2013, for each fund, the following information replaces the similar information under the heading "Shareholder fees" under the heading "Fee Table" in each "Fund Summary" section. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="7" align="left"> Shareholder fees (fees paid directly from your investment) </td> <td valign="bottom" align="right"> None </td></tr></table> Supplement to the Spartan® Emerging Markets Index Fund and Spartan Global ex U.S. Index Fund Investor Class and Fidelity Advantage® Class December 30, 2011 Prospectus Effective January 1, 2013, the following information replaces the similar information for Spartan Emerging Markets Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 3. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="4" align="left"> Shareholder fees (fees paid directly from your investment) </td></tr> <tr> <td valign="top" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="top" align="center">  </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Redemption fee on shares held less than 90 days (as a % of amount redeemed) </td> <td valign="bottom" align="right"> 1.50% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 1.50% </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.25% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.25% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expensesA </td> <td valign="bottom" align="right"> 0.21% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses </td> <td valign="bottom" align="right"> 0.46% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.35% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver/or expense reimbursementB </td> <td valign="bottom" align="right"> 0.15% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.15% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver/or expense reimbursement </td> <td valign="bottom" align="right"> 0.31% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.20% </td></tr></table> A Based on estimated amounts for the current fiscal year. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Investor Class and Fidelity Advantage Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.31% and 0.20%, respectively. These arrangements will remain in effect through December 31, 2013. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information for Spartan Emerging Markets Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 4. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 32 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 20 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 133 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 97 </td></tr></table> Effective January 1, 2013, the following information replaces the similar information for Spartan Global ex U.S. Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 7. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="4" align="left"> Shareholder fees (fees paid directly from your investment) </td></tr> <tr> <td valign="top" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="top" align="center">  </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Redemption fee on shares held less than 90 days (as a % of amount redeemed) </td> <td valign="bottom" align="right"> 1.00% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 1.00% </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.20% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.20% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expensesA </td> <td valign="bottom" align="right"> 0.14% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.08% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses </td> <td valign="bottom" align="right"> 0.34% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.28% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver/or expense reimbursementB </td> <td valign="bottom" align="right"> 0.12% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver/or expense reimbursement </td> <td valign="bottom" align="right"> 0.22% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.18% </td></tr></table> A Based on estimated amounts for the current fiscal year. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Investor Class and Fidelity Advantage Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.22% and 0.18%, respectively. These arrangements will remain in effect through December 31, 2013. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information for Spartan Global ex U.S. Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 8. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 23 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 18 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 97 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 79 </td></tr></table> Supplement to the Spartan® Emerging Markets Index Fund and Spartan Global ex U.S. Index Fund Investor Class and Fidelity Advantage® Class December 30, 2011 Prospectus Effective January 1, 2013, the following information replaces the similar information for Spartan Emerging Markets Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 3. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="4" align="left"> Shareholder fees (fees paid directly from your investment) </td></tr> <tr> <td valign="top" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="top" align="center">  </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Redemption fee on shares held less than 90 days (as a % of amount redeemed) </td> <td valign="bottom" align="right"> 1.50% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 1.50% </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.25% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.25% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expensesA </td> <td valign="bottom" align="right"> 0.21% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses </td> <td valign="bottom" align="right"> 0.46% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.35% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver/or expense reimbursementB </td> <td valign="bottom" align="right"> 0.15% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.15% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver/or expense reimbursement </td> <td valign="bottom" align="right"> 0.31% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.20% </td></tr></table> A Based on estimated amounts for the current fiscal year. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Investor Class and Fidelity Advantage Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.31% and 0.20%, respectively. These arrangements will remain in effect through December 31, 2013. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information for Spartan Emerging Markets Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 4. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 32 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 20 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 133 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 97 </td></tr></table> Effective January 1, 2013, the following information replaces the similar information for Spartan Global ex U.S. Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 7. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="4" align="left"> Shareholder fees (fees paid directly from your investment) </td></tr> <tr> <td valign="top" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="top" align="center">  </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Redemption fee on shares held less than 90 days (as a % of amount redeemed) </td> <td valign="bottom" align="right"> 1.00% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 1.00% </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.20% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.20% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expensesA </td> <td valign="bottom" align="right"> 0.14% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.08% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses </td> <td valign="bottom" align="right"> 0.34% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.28% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver/or expense reimbursementB </td> <td valign="bottom" align="right"> 0.12% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver/or expense reimbursement </td> <td valign="bottom" align="right"> 0.22% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.18% </td></tr></table> A Based on estimated amounts for the current fiscal year. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Investor Class and Fidelity Advantage Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.22% and 0.18%, respectively. These arrangements will remain in effect through December 31, 2013. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information for Spartan Global ex U.S. Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 8. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 23 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 18 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 97 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 79 </td></tr></table> Supplement to the Spartan® Emerging Markets Index Fund and Spartan Global ex U.S. Index Fund Institutional Class and Fidelity Advantage® Institutional Class December 30, 2011 Prospectus Effective January 1, 2013, the following information replaces the similar information for Spartan Emerging Markets Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 3. Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.25% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.25% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expensesA </td> <td valign="bottom" align="right"> 0.03% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.00% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses </td> <td valign="bottom" align="right"> 0.28% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.25% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver/or expense reimbursementB </td> <td valign="bottom" align="right"> 0.15% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.15% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver/or expense reimbursement </td> <td valign="bottom" align="right"> 0.13% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr></table> A Based on estimated amounts for the current fiscal year. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class and Fidelity Advantage Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.13% and 0.10%, respectively. These arrangements will remain in effect through December 31, 2013. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information for Spartan Emerging Markets Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 4. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 13 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 10 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 75 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 65 </td></tr></table> Effective January 1, 2013, the following information replaces the similar information for Spartan Global ex U.S. Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 7. Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.20% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.20% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expensesA </td> <td valign="bottom" align="right"> 0.03% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.00% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses </td> <td valign="bottom" align="right"> 0.23% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.20% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver/or expense reimbursementB </td> <td valign="bottom" align="right"> 0.10% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver/or expense reimbursement </td> <td valign="bottom" align="right"> 0.13% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr></table> A Based on estimated amounts for the current fiscal year. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class and Fidelity Advantage Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.13% and 0.10%, respectively. These arrangements will remain in effect through December 31, 2013. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information for Spartan Global ex U.S. Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 8. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 13 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 10 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 63 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 54 </td></tr></table> Supplement to the Spartan® Emerging Markets Index Fund and Spartan Global ex U.S. Index Fund Institutional Class and Fidelity Advantage® Institutional Class December 30, 2011 Prospectus Effective January 1, 2013, the following information replaces the similar information for Spartan Emerging Markets Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 3. Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.25% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.25% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expensesA </td> <td valign="bottom" align="right"> 0.03% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.00% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses </td> <td valign="bottom" align="right"> 0.28% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.25% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver/or expense reimbursementB </td> <td valign="bottom" align="right"> 0.15% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.15% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver/or expense reimbursement </td> <td valign="bottom" align="right"> 0.13% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr></table> A Based on estimated amounts for the current fiscal year. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class and Fidelity Advantage Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.13% and 0.10%, respectively. These arrangements will remain in effect through December 31, 2013. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information for Spartan Emerging Markets Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 4. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 13 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 10 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 75 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 65 </td></tr></table> Effective January 1, 2013, the following information replaces the similar information for Spartan Global ex U.S. Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 7. Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.20% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.20% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expensesA </td> <td valign="bottom" align="right"> 0.03% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.00% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses </td> <td valign="bottom" align="right"> 0.23% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.20% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver/or expense reimbursementB </td> <td valign="bottom" align="right"> 0.10% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver/or expense reimbursement </td> <td valign="bottom" align="right"> 0.13% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr></table> A Based on estimated amounts for the current fiscal year. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class and Fidelity Advantage Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.13% and 0.10%, respectively. These arrangements will remain in effect through December 31, 2013. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces the similar information for Spartan Global ex U.S. Index Fund under the heading "Fee Table" in the "Fund Summary" section on page 8. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Institutional Class</td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Fidelity Advantage Institutional Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 13 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 10 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 63 </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> $ 54 </td></tr></table> Supplement to the Spartan® Inflation-Protected Bond Index Fund Investor Class and Fidelity Advantage® Class May 9, 2012 Prospectus Effective January 1, 2013, the following information replaces the similar information under "Shareholder fees" under the heading "Fee Table" in the "Fund Summary" section on page 3. <table border="1" width="95%"> <tr> <td valign="bottom" colspan="3" align="left"> Shareholder fees (fees paid directly from your investment) </td> <td valign="bottom" align="right"> None </td></tr></table> Supplement to the Spartan® Real Estate Index Fund Investor Class and Fidelity Advantage® Class September 29, 2012 Prospectus Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section on page 3. <table border="1" width="95%"> <tr> <td valign="top" align="left"> Shareholder fees (fees paid directly from your investment) </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="top" align="center">  </td> <td valign="top" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Redemption fee on shares held less than 90 days (as a % of amount redeemed) </td> <td valign="bottom" align="right"> 0.75% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.75% </td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table border="1" width="95%"> <tr> <td valign="bottom" align="right">   </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> Management fee </td> <td valign="bottom" align="right"> 0.14% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.14% </td></tr> <tr> <td valign="bottom" align="left"> Distribution and/or Service (12b-1) fees </td> <td valign="bottom" align="right"> None </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> None </td></tr> <tr> <td valign="bottom" align="left"> Other expenses </td> <td valign="bottom" align="right"> 0.20% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.06% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses A </td> <td valign="bottom" align="right"> 0.34% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.20% </td></tr> <tr> <td valign="bottom" align="left"> Fee waiver and/or expense reimbursement B </td> <td valign="bottom" align="right"> 0.10% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr> <tr> <td valign="bottom" align="left"> Total annual operating expenses after fee waiver and/or expense reimbursement A </td> <td valign="bottom" align="right"> 0.24% </td> <td valign="bottom" align="right">   </td> <td valign="bottom" align="right"> 0.10% </td></tr></table> A Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. For the period, acquired fund fees and expenses are less than 0.01% and are included in other expenses. As a result, the total annual operating expenses after fee waiver and/or expense reimbursement in the fee table exceed the contractual expense limitations of the class. B Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Investor Class and Fidelity Advantage Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed 0.23% and 0.09%, respectively. These arrangements will remain in effect through September 30, 2014. FMR may not terminate these arrangements before the expiration date without the approval of the Board of Trustees. Effective January 1, 2013, the following information replaces similar information found under the heading "Fee Table" in the "Fund Summary" section on page 4. <table border="1" width="95%"> <tr> <td valign="bottom" align="right">  </td> <td valign="bottom" align="center"> Investor Class</td> <td valign="bottom" align="center"> Fidelity Advantage Class</td></tr> <tr> <td valign="bottom" align="left"> 1 year </td> <td valign="bottom" align="right"> $ 25 </td> <td valign="bottom" align="right"> $ 10 </td></tr> <tr> <td valign="bottom" align="left"> 3 years </td> <td valign="bottom" align="right"> $ 91 </td> <td valign="bottom" align="right"> $ 46 </td></tr> <tr> <td valign="bottom" align="left"> 5 years </td> <td valign="bottom" align="right"> $ 173 </td> <td valign="bottom" align="right"> $ 95 </td></tr> <tr> <td valign="bottom" align="left"> 10 years </td> <td valign="bottom" align="right"> $ 413 </td> <td valign="bottom" align="right"> $ 237 </td></tr></table>