0000035315 2011-12-30 2012-12-29 0000035315 fsst8:S000033635Member fsst8:AdvInvMember 2011-12-30 2012-12-29 0000035315 fsst8:S000033636Member fsst8:AdvInvMember 2011-12-30 2012-12-29 0000035315 fsst8:S000033635Member fsst8:InstAdvInstMember 2011-12-30 2012-12-29 0000035315 fsst8:S000033636Member fsst8:InstAdvInstMember 2011-12-30 2012-12-29 2012-12-29 FIDELITY SALEM STREET TRUST 0000035315 Other 2012-10-31 false 2012-12-31 2012-12-29 Supplement to the  Spartan® Emerging Markets Index Fund and  Spartan Global ex U.S. Index Fund Investor Class and Fidelity Advantage® Class December 29, 2012 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 width="95%" border=""><tr><td align="left" valign="bottom" colspan="4">Shareholder fees (fees paid directly from your investment)</td></tr><tr><td align="left" valign="top"> </td><td align="center">Investor Class</td><td align="center" valign="top"> </td><td align="center" valign="bottom">Fidelity Advantage® Class </td></tr><tr><td align="left" valign="bottom">Redemption fee on shares held less than 90 days (as a % of amount redeemed)</td><td align="right" valign="bottom">1.50%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">1.50%</td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table width="95%" border=""><tr><td align="left" valign="bottom"> </td><td align="center">Investor Class</td><td align="center" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Class</td></tr><tr><td align="left" valign="bottom">Management fee</td><td align="right" valign="bottom">0.25%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.25%</td></tr><tr><td align="left" valign="bottom">Distribution and/or Service (12b-1) fees</td><td align="right" valign="bottom">None</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">None</td></tr><tr><td align="left" valign="bottom">Other expenses</td><td align="right" valign="bottom">0.21%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.10%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses</td><td align="right" valign="bottom">0.46%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.35%</td></tr><tr><td align="left" valign="bottom">Fee waiver/or expense reimbursementA</td><td align="right" valign="bottom">0.15%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.15%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses after fee waiver/or expense reimbursement</td><td align="right" valign="bottom">0.31%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.20%</td></tr></table> A 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 width="95%" border=""><tr><td align="center" valign="bottom"> </td><td align="center">Investor Class</td><td align="left" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Class </td></tr><tr><td align="left" valign="bottom">1 year</td><td align="right" valign="bottom">$ 32</td><td align="left" valign="bottom"> </td><td align="right" valign="bottom">$ 20</td></tr><tr><td align="left" valign="bottom">3 years</td><td align="right" valign="bottom">$ 133</td><td align="left" valign="bottom"> </td><td align="right" valign="bottom">$ 97</td></tr><tr><td align="left" valign="bottom">5 years</td><td align="right" valign="bottom">$ 243</td><td align="left" valign="bottom"> </td><td align="right" valign="bottom">$ 181</td></tr><tr><td align="left" valign="bottom">10 years</td><td align="right" valign="bottom">$ 565</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 428</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 width="95%" border=""><tr><td align="left" valign="bottom" colspan="4">Shareholder fees (fees paid directly from your investment)</td></tr><tr><td align="left" valign="top"> </td><td align="center">Investor Class</td><td align="center" valign="top"> </td><td align="center" valign="bottom">Fidelity Advantage Class </td></tr><tr><td align="left" valign="bottom">Redemption fee on shares held less than 90 days (as a % of amount redeemed)</td><td align="right" valign="bottom">1.00%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">1.00%</td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table width="95%" border=""><tr><td align="left" valign="bottom"> </td><td align="center">Investor Class</td><td align="center" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Class </td></tr><tr><td align="left" valign="bottom">Management fee</td><td align="right" valign="bottom">0.20%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.20%</td></tr><tr><td align="left" valign="bottom">Distribution and/or Service (12b-1) fees</td><td align="right" valign="bottom">None</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">None</td></tr><tr><td align="left" valign="bottom">Other expenses</td><td align="right" valign="bottom">0.14%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.08%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses</td><td align="right" valign="bottom">0.34%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.28%</td></tr><tr><td align="left" valign="bottom">Fee waiver/or expense reimbursementA</td><td align="right" valign="bottom">0.12%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.10%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses after fee waiver/or expense reimbursement</td><td align="right" valign="bottom">0.22%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.18%</td></tr></table> A 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 width="95%" border=""><tr><td align="center" valign="bottom"> </td><td align="center">Investor Class</td><td align="left" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Class </td></tr><tr><td align="left" valign="bottom">1 year</td><td align="right" valign="bottom">$ 23</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 18</td></tr><tr><td align="left" valign="bottom">3 years</td><td align="right" valign="bottom">$ 97</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 79</td></tr><tr><td align="left" valign="bottom">5 years</td><td align="right" valign="bottom">$ 179</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 147</td></tr><tr><td align="left" valign="bottom">10 years</td><td align="right" valign="bottom">$ 419</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 345</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 29, 2012 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 width="95%" border=""><tr><td align="left" valign="bottom" colspan="4">Shareholder fees (fees paid directly from your investment)</td></tr><tr><td align="left" valign="top"> </td><td align="center">Investor Class</td><td align="center" valign="top"> </td><td align="center" valign="bottom">Fidelity Advantage® Class </td></tr><tr><td align="left" valign="bottom">Redemption fee on shares held less than 90 days (as a % of amount redeemed)</td><td align="right" valign="bottom">1.50%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">1.50%</td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table width="95%" border=""><tr><td align="left" valign="bottom"> </td><td align="center">Investor Class</td><td align="center" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Class</td></tr><tr><td align="left" valign="bottom">Management fee</td><td align="right" valign="bottom">0.25%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.25%</td></tr><tr><td align="left" valign="bottom">Distribution and/or Service (12b-1) fees</td><td align="right" valign="bottom">None</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">None</td></tr><tr><td align="left" valign="bottom">Other expenses</td><td align="right" valign="bottom">0.21%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.10%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses</td><td align="right" valign="bottom">0.46%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.35%</td></tr><tr><td align="left" valign="bottom">Fee waiver/or expense reimbursementA</td><td align="right" valign="bottom">0.15%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.15%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses after fee waiver/or expense reimbursement</td><td align="right" valign="bottom">0.31%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.20%</td></tr></table> A 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 width="95%" border=""><tr><td align="center" valign="bottom"> </td><td align="center">Investor Class</td><td align="left" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Class </td></tr><tr><td align="left" valign="bottom">1 year</td><td align="right" valign="bottom">$ 32</td><td align="left" valign="bottom"> </td><td align="right" valign="bottom">$ 20</td></tr><tr><td align="left" valign="bottom">3 years</td><td align="right" valign="bottom">$ 133</td><td align="left" valign="bottom"> </td><td align="right" valign="bottom">$ 97</td></tr><tr><td align="left" valign="bottom">5 years</td><td align="right" valign="bottom">$ 243</td><td align="left" valign="bottom"> </td><td align="right" valign="bottom">$ 181</td></tr><tr><td align="left" valign="bottom">10 years</td><td align="right" valign="bottom">$ 565</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 428</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 width="95%" border=""><tr><td align="left" valign="bottom" colspan="4">Shareholder fees (fees paid directly from your investment)</td></tr><tr><td align="left" valign="top"> </td><td align="center">Investor Class</td><td align="center" valign="top"> </td><td align="center" valign="bottom">Fidelity Advantage Class </td></tr><tr><td align="left" valign="bottom">Redemption fee on shares held less than 90 days (as a % of amount redeemed)</td><td align="right" valign="bottom">1.00%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">1.00%</td></tr></table> Annual class operating expenses (expenses that you pay each year as a % of the value of your investment) <table width="95%" border=""><tr><td align="left" valign="bottom"> </td><td align="center">Investor Class</td><td align="center" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Class </td></tr><tr><td align="left" valign="bottom">Management fee</td><td align="right" valign="bottom">0.20%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.20%</td></tr><tr><td align="left" valign="bottom">Distribution and/or Service (12b-1) fees</td><td align="right" valign="bottom">None</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">None</td></tr><tr><td align="left" valign="bottom">Other expenses</td><td align="right" valign="bottom">0.14%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.08%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses</td><td align="right" valign="bottom">0.34%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.28%</td></tr><tr><td align="left" valign="bottom">Fee waiver/or expense reimbursementA</td><td align="right" valign="bottom">0.12%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.10%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses after fee waiver/or expense reimbursement</td><td align="right" valign="bottom">0.22%</td><td align="center" valign="bottom"> </td><td align="right" valign="bottom">0.18%</td></tr></table> A 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 width="95%" border=""><tr><td align="center" valign="bottom"> </td><td align="center">Investor Class</td><td align="left" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Class </td></tr><tr><td align="left" valign="bottom">1 year</td><td align="right" valign="bottom">$ 23</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 18</td></tr><tr><td align="left" valign="bottom">3 years</td><td align="right" valign="bottom">$ 97</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 79</td></tr><tr><td align="left" valign="bottom">5 years</td><td align="right" valign="bottom">$ 179</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 147</td></tr><tr><td align="left" valign="bottom">10 years</td><td align="right" valign="bottom">$ 419</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 345</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 29, 2012 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 width="95%" border="" style="background-color: rgb(255, 255, 255);"><tr><td align="left" valign="bottom"> </td><td align="center">Institutional Class</td><td align="center" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage® Institutional Class </td></tr><tr><td align="left" valign="bottom">Management fee</td><td align="right" valign="bottom">0.25%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.25%</td></tr><tr><td align="left" valign="bottom">Distribution and/or Service (12b-1) fees</td><td align="right" valign="bottom">None</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">None</td></tr><tr><td align="left" valign="bottom">Other expenses</td><td align="right" valign="bottom">0.03%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.00%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses</td><td align="right" valign="bottom">0.28%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.25%</td></tr><tr><td align="left" valign="bottom">Fee waiver/or expense reimbursementA</td><td align="right" valign="bottom">0.15%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.15%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses after fee waiver/or expense reimbursement</td><td align="right" valign="bottom">0.13%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.10%</td></tr></table> A 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 width="95%" border="" style="background-color: rgb(255, 255, 255);"><tr><td align="center" valign="bottom"> </td><td align="center">Institutional Class</td><td align="left" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Institutional Class </td></tr><tr><td align="left" valign="bottom">1 year</td><td align="right" valign="bottom">$ 13</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 10</td></tr><tr><td align="left" valign="bottom">3 years</td><td align="right" valign="bottom">$ 75</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 65</td></tr><tr><td align="left" valign="bottom">5 years</td><td align="right" valign="bottom">$ 142</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 126</td></tr><tr><td align="left" valign="bottom">10 years</td><td align="right" valign="bottom">$ 341</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 303</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 width="95%" border="" style="background-color: rgb(255, 255, 255);"><tr><td align="left" valign="bottom"> </td><td align="center">Institutional Class</td><td align="center" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Institutional Class </td></tr><tr><td align="left" valign="bottom">Management fee</td><td align="right" valign="bottom">0.20%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.20%</td></tr><tr><td align="left" valign="bottom">Distribution and/or Service (12b-1) fees</td><td align="right" valign="bottom">None</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">None</td></tr><tr><td align="left" valign="bottom">Other expenses</td><td align="right" valign="bottom">0.03%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.00%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses</td><td align="right" valign="bottom">0.23%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.20%</td></tr><tr><td align="left" valign="bottom">Fee waiver/or expense reimbursementA</td><td align="right" valign="bottom">0.10%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.10%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses after fee waiver/or expense reimbursement</td><td align="right" valign="bottom">0.13%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.10%</td></tr></table> A 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 width="95%" border="" style="background-color: rgb(255, 255, 255);"><tr><td align="center" valign="bottom"> </td><td align="center">Institutional Class</td><td align="left" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Institutional Class </td></tr><tr><td align="left" valign="bottom">1 year</td><td align="right" valign="bottom">$ 13</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 10</td></tr><tr><td align="left" valign="bottom">3 years</td><td align="right" valign="bottom">$ 63</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 54</td></tr><tr><td align="left" valign="bottom">5 years</td><td align="right" valign="bottom">$ 119</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 102</td></tr><tr><td align="left" valign="bottom">10 years</td><td align="right" valign="bottom">$ 282</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 245</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 29, 2012 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 width="95%" border="" style="background-color: rgb(255, 255, 255);"><tr><td align="left" valign="bottom"> </td><td align="center">Institutional Class</td><td align="center" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage® Institutional Class </td></tr><tr><td align="left" valign="bottom">Management fee</td><td align="right" valign="bottom">0.25%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.25%</td></tr><tr><td align="left" valign="bottom">Distribution and/or Service (12b-1) fees</td><td align="right" valign="bottom">None</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">None</td></tr><tr><td align="left" valign="bottom">Other expenses</td><td align="right" valign="bottom">0.03%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.00%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses</td><td align="right" valign="bottom">0.28%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.25%</td></tr><tr><td align="left" valign="bottom">Fee waiver/or expense reimbursementA</td><td align="right" valign="bottom">0.15%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.15%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses after fee waiver/or expense reimbursement</td><td align="right" valign="bottom">0.13%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.10%</td></tr></table> A 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 width="95%" border="" style="background-color: rgb(255, 255, 255);"><tr><td align="center" valign="bottom"> </td><td align="center">Institutional Class</td><td align="left" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Institutional Class </td></tr><tr><td align="left" valign="bottom">1 year</td><td align="right" valign="bottom">$ 13</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 10</td></tr><tr><td align="left" valign="bottom">3 years</td><td align="right" valign="bottom">$ 75</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 65</td></tr><tr><td align="left" valign="bottom">5 years</td><td align="right" valign="bottom">$ 142</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 126</td></tr><tr><td align="left" valign="bottom">10 years</td><td align="right" valign="bottom">$ 341</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 303</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 width="95%" border="" style="background-color: rgb(255, 255, 255);"><tr><td align="left" valign="bottom"> </td><td align="center">Institutional Class</td><td align="center" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Institutional Class </td></tr><tr><td align="left" valign="bottom">Management fee</td><td align="right" valign="bottom">0.20%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.20%</td></tr><tr><td align="left" valign="bottom">Distribution and/or Service (12b-1) fees</td><td align="right" valign="bottom">None</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">None</td></tr><tr><td align="left" valign="bottom">Other expenses</td><td align="right" valign="bottom">0.03%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.00%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses</td><td align="right" valign="bottom">0.23%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.20%</td></tr><tr><td align="left" valign="bottom">Fee waiver/or expense reimbursementA</td><td align="right" valign="bottom">0.10%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.10%</td></tr><tr><td align="left" valign="bottom">Total annual operating expenses after fee waiver/or expense reimbursement</td><td align="right" valign="bottom">0.13%</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">0.10%</td></tr></table> A 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 width="95%" border="" style="background-color: rgb(255, 255, 255);"><tr><td align="center" valign="bottom"> </td><td align="center">Institutional Class</td><td align="left" valign="bottom"> </td><td align="center" valign="bottom">Fidelity Advantage Institutional Class </td></tr><tr><td align="left" valign="bottom">1 year</td><td align="right" valign="bottom">$ 13</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 10</td></tr><tr><td align="left" valign="bottom">3 years</td><td align="right" valign="bottom">$ 63</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 54</td></tr><tr><td align="left" valign="bottom">5 years</td><td align="right" valign="bottom">$ 119</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 102</td></tr><tr><td align="left" valign="bottom">10 years</td><td align="right" valign="bottom">$ 282</td><td align="right" valign="bottom"> </td><td align="right" valign="bottom">$ 245</td></tr></table>