Document And Entity Information (USD $)

12 Months Ended

Dec. 31, 2010

Jun. 30, 2010

Document And Entity Information [Abstract]

Document Type

10-K

Amendment Flag

true

Document Period End Date

Dec. 31, 2010

Document Fiscal Year Focus

2010

Document Fiscal Period Focus

FY

Entity Registrant Name

iShares Silver Trust

Entity Central Index Key

0001330568

Current Fiscal Year End Date

--12-31

Entity Filer Category

Large Accelerated Filer

Entity Common Stock, Shares Outstanding

359,200,000

Entity Public Float

$ 5,470,284,000

Entity Current Reporting Status

Yes

Entity Voluntary Filers

No

Entity Well-known Seasoned Issuer

Yes

Amendment Description

Explanatory Note

This Amendment No. 1 to the Annual Report on Form 10-K for the fiscal year ended on December 31, 2010 filed by the registrant on February 25, 2011 (the "Original Report"), is being filed to:

(1) Restate the registrant's financial statements for the years ended December 31, 2008 and 2009 included in the Original Report as a result of an error in the application of the registrant's valuation policy to the decrease in market value of silver held by the registrant during the second half of 2008 and the subsequent recovery of the market value of such silver during the first two quarters of 2009;

(2) revise Items 6 ("Selected Financial Data"), 7 ("Management's Discussion and Analysis of Financial Condition and Result of Operations") and 8 ("Financial Statements and Supplementary Data") of the Original Report to reflect the restatement of the financial statements referred to above; and

(3) revise Item 9A ("Controls and Procedures") of the Original Report to include the re-evaluation by the principal executive officer and the principal financial officer of BlackRock Asset Management International Inc., the sponsor of the registrant (the "Sponsor"), of the effectiveness of the registrant's internal control over financial reporting, reflect their conclusion that a material weakness existed as of December 31, 2010 which affected the effectiveness of such internal control over financial reporting and summarize the remedial action the Sponsor has taken and expects to undertake to correct such weakness.

Except for the foregoing, this Amendment No. 1 does not amend any other part of the Original Report, which continues in full force and effect. Items not listed in paragraphs (2) and (3) above are reproduced from the Original Report without change and are included in this Amendment No. 1 for the convenience of the reader only. This Amendment No. 1 speaks as of the date of the Original Report and has not been updated to reflect events occurring after the date of the Original Report.

For a description of the error that gave rise to the restatement referred to above, please see Note 1A to the financial statements included with this Amendment No. 1. For a discussion of the determination regarding the material weakness affecting the registrant's internal control over financial reporting at the end of the period covered by the Original Report and this Amendment No. 1, please see Item 9A of this Amendment No. 1.

As required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended, this Amendment No. 1 includes updated certifications from the Sponsor's principal executive officer and principal financial officer.