<SUBMISSION>
<ACCESSION-NUMBER>0001047469-04-016492
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20040507
<ITEMS>5
<FILING-DATE>20040510
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>OVERSTOCK COM INC
<CIK>0001130713
<ASSIGNED-SIC>7389
<IRS-NUMBER>870634302
<STATE-OF-INCORPORATION>UT
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>000-49799
<FILM-NUMBER>04790455
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>6322 SOUTH 3000 EAST
<STREET2>STE 100
<CITY>SALT LAKE CITY
<STATE>UT
<ZIP>84121
<PHONE>8019473100
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>6322 SOUTH 3000 EAST
<STREET2>STE 100
<CITY>SALT LAKE CITY
<STATE>UT
<ZIP>84121
</MAIL-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a2136200z8-k.htm
<DESCRIPTION>8-K
<TEXT>
<HTML>
<HEAD>

</HEAD>
<BODY BGCOLOR="#FFFFFF" LINK=BLUE  VLINK=PURPLE>
<BR>
<FONT SIZE=3 ><A HREF="#04DEN1808_1">QuickLinks</A></FONT>
<font size=3> -- Click here to rapidly navigate through this document</font>

<P><FONT SIZE=2>
<hr noshade width=100% align=left size=4>
<hr noshade width=100% align=left size=1> </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=5><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>  </B></FONT><FONT SIZE=2><B>Washington, D.C. 20549  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=5><B>FORM 8-K  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=3><B>CURRENT REPORT<BR>  </B></FONT><FONT SIZE=2><B>Pursuant to Section&nbsp;13 or 15(d)&nbsp;of<BR>
the Securities Exchange Act of 1934  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B> May&nbsp;7, 2004<BR>  </B></FONT><FONT SIZE=2>Date of Report (date of earliest event reported) </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=5><B>Overstock.com,&nbsp;Inc.<BR>  </B></FONT><FONT SIZE=2>(Exact name of Registrant as specified in its charter) </FONT></P>

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<DIV ALIGN="CENTER"><TABLE WIDTH="72%" BORDER=0 CELLSPACING=0 CELLPADDING=0>
<TR VALIGN="TOP">
<TD WIDTH="31%" ALIGN="CENTER"><FONT SIZE=2><B>Delaware</B></FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="31%" ALIGN="CENTER"><FONT SIZE=2><B>000-49799</B></FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="31%" ALIGN="CENTER"><FONT SIZE=2><B>87-0634302</B></FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="31%" ALIGN="CENTER"><FONT SIZE=2>(State or other jurisdiction of<BR>
incorporation or organization)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="31%" ALIGN="CENTER"><FONT SIZE=2>(Commission<BR>
File Number)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="31%" ALIGN="CENTER"><FONT SIZE=2>(I.R.S. Employer<BR>
Identification Number)</FONT></TD>
</TR>
</TABLE></DIV>
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<P ALIGN="CENTER"><FONT SIZE=2><B>6322 South 3000 East, Suite&nbsp;100<BR>
Salt Lake City, Utah 84121<BR>  </B></FONT><FONT SIZE=2>(Address of principal executive offices) </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B>(801) 947-3100<BR>  </B></FONT><FONT SIZE=2>(Registrant's telephone number, including area code) </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2>(Former
name or former address, if changed since last report) </FONT></P>


<P><FONT SIZE=2><hr
noshade width=100% align=left size=1>
<hr noshade width=100% align=left size=4> </FONT></P>

<P><FONT SIZE=2>
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NAME="page_de1808_1_2"> </A> </FONT></P>

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<P><FONT SIZE=2><A
NAME="de1808_item_5._other_events."> </A>
<A NAME="toc_de1808_1"> </A>
<BR></FONT><FONT SIZE=2><B>Item 5. Other Events.    <BR>    </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On May&nbsp;7, 2004, Overstock.com,&nbsp;Inc. issued a press release announcing plans to offer shares of its common stock in an underwritten public offering
under its existing shelf registration statement. The text of that press release is being furnished herewith and attached as Exhibit&nbsp;99.1</FONT><FONT SIZE=2><B>.</B></FONT></P>

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<TH WIDTH="10%" ALIGN="CENTER"><FONT SIZE=1><B>Exhibit Number</B></FONT><HR NOSHADE></TH>
<TH WIDTH="3%"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH WIDTH="88%" ALIGN="CENTER"><FONT SIZE=1><B>Description</B></FONT><HR NOSHADE></TH>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="10%" ALIGN="RIGHT"><FONT SIZE=2>99.1</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="88%"><FONT SIZE=2>Press Release issued May&nbsp;7, 2004.</FONT></TD>
</TR>
</TABLE>
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<P><FONT SIZE=2>
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</FONT></P>

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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="page_jc1808_1_3"> </A> </FONT></P>

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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="jc1808_signature"> </A>
<A NAME="toc_jc1808_1"> </A>
<BR></FONT><FONT SIZE=2><B>SIGNATURE    <BR>    </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned
hereunto duly authorized. </FONT></P>

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<TD WIDTH="47%"><FONT SIZE=2><BR>
&nbsp;</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD COLSPAN=3><FONT SIZE=2><BR>
OVERSTOCK.COM,&nbsp;INC.</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="47%"><FONT SIZE=2><BR>
&nbsp;</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD WIDTH="6%"><FONT SIZE=2><BR>
By:</FONT></TD>
<TD WIDTH="1%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD WIDTH="43%"><FONT SIZE=2><BR>
/s/&nbsp;&nbsp;</FONT><FONT SIZE=2>DAVID K. CHIDESTER</FONT><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><HR NOSHADE><FONT SIZE=2> David K. Chidester<BR>
Vice President, Finance</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="47%"><FONT SIZE=2><BR>
&nbsp;</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD WIDTH="6%"><FONT SIZE=2><BR>
Date:</FONT></TD>
<TD WIDTH="1%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD WIDTH="43%"><FONT SIZE=2><BR>
May&nbsp;7, 2004</FONT></TD>
</TR>
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<P><FONT SIZE=2>
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</FONT></P>

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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="ka1808_exhibit_index"> </A>
<A NAME="toc_ka1808_1"> </A>
<BR></FONT><FONT SIZE=2><B>EXHIBIT INDEX    <BR>    </B></FONT></P>

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<TH WIDTH="10%" ALIGN="CENTER"><FONT SIZE=1><B>Exhibit Number</B></FONT><HR NOSHADE></TH>
<TH WIDTH="3%"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH WIDTH="88%" ALIGN="CENTER"><FONT SIZE=1><B>Description</B></FONT><HR NOSHADE></TH>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="10%" ALIGN="RIGHT"><FONT SIZE=2>99.1</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="88%"><FONT SIZE=2>Press Release issued May&nbsp;7, 2004.</FONT></TD>
</TR>
</TABLE>
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<P><FONT SIZE=2>
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</FONT></P>

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<BR>
<P><br><A NAME="04DEN1808_1">QuickLinks</A><br></P><!-- TOC_BEGIN -->
<UL>
<FONT SIZE=2><A HREF="#toc_de1808_1">Item 5. Other Events.</A></FONT><BR>
</UL>
<!-- TOC_BEGIN -->
<FONT SIZE=2><A HREF="#toc_jc1808_1">SIGNATURE</A></FONT><BR>
<!-- TOC_BEGIN -->
<FONT SIZE=2><A HREF="#toc_ka1808_1">EXHIBIT INDEX</A></FONT><BR>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a2136200zex-99_1.htm
<DESCRIPTION>EX 99.1
<TEXT>
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</HEAD>
<BODY BGCOLOR="#FFFFFF" LINK=BLUE  VLINK=PURPLE>
<BR>
<FONT SIZE=3 ><A HREF="#04DEN1808_2">QuickLinks</A></FONT>
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<!-- TOC_END -->
<P ALIGN="RIGHT"><FONT SIZE=2><B>Exhibit&nbsp;99.1  </B></FONT></P>

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<TD WIDTH="27%" VALIGN="TOP"><FONT SIZE=2><B>FOR IMMEDIATE RELEASE</B></FONT></TD>
<TD WIDTH="2%" VALIGN="TOP"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="29%" VALIGN="TOP"><FONT SIZE=2><B>Investor Contact:</B></FONT></TD>
<TD WIDTH="2%" VALIGN="TOP"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="39%" VALIGN="TOP"><FONT SIZE=2><B>Media Contact:</B></FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="27%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="29%"><FONT SIZE=2>Kathryn Huang Hadley<BR>
Overstock.com,&nbsp;Inc.<BR>
+1 (801) 947-3282<BR>
khuang@overstock.com</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="39%"><FONT SIZE=2>Scott Blevins<BR>
Overstock.com,&nbsp;Inc.<BR>
+1 (801) 947-3133<BR>
sblevins@overstock.com</FONT></TD>
</TR>
</TABLE>
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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="ma1808_overstock.com,_inc._ann__ma102377"> </A>
<A NAME="toc_ma1808_1"> </A>
<BR></FONT><FONT SIZE=2><B>Overstock.com,&nbsp;Inc. Announces<BR>  Proposed Common Stock Offering    <BR>    </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SALT LAKE CITY&#151;Overstock.com,&nbsp;Inc. (NASDAQ: OSTK) today announced plans to offer 1,500,000&nbsp;million shares of common stock in an
auction-based underwritten public offering under its existing shelf registration statement. The underwriters will have an option to purchase up to an additional 225,000 shares to cover
over-allotments, if any. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;WR
Hambrecht&nbsp;+&nbsp;Co LLC is acting as the sole book-running manager, and JMP Securities LLC is acting as co-lead manager. The offering will be made
through WR Hambrecht&nbsp;+&nbsp;Co's OpenFollowOn<SUP>SM</SUP> auction process. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
press release does not constitute an offer to sell or the solicitation of an offer to buy any of the securities. A preliminary prospectus supplement relating to these securities has
been filed with the Securities and Exchange Commission but remains subject to completion. These securities may not be sold nor offers to buy be accepted prior to the time the prospectus supplement and
related prospectuses are delivered in final form. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copies
of the prospectus supplement and the accompanying prospectus can be obtained from WR Hambrecht&nbsp;+&nbsp;Co LLC, 539 Bryant St., San Francisco, California, 94107,
(415)&nbsp;551-8600 or from JMP Securities LLC located at One Embarcadero Center, Suite&nbsp;2100, San Francisco, California 94111, (415)&nbsp;835-8900. </FONT></P>

<P><FONT SIZE=2><B>About Overstock.com  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Overstock.com&nbsp;Inc. is an online "closeout" retailer offering discount, brand-name merchandise for sale over the Internet. The company offers
its customers an opportunity to shop for bargains conveniently, while offering its suppliers an alternative inventory liquidation distribution channel. Overstock.com is a publicly traded company
listed on the NASDAQ National Market System, headquartered in Salt Lake City, and can be found online at www.overstock.com. </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2>#
# # </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Overstock.com
is a registered trademark of Overstock.com,&nbsp;Inc. All other trademarks are the property of their respective owners. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
press release contains certain forward-looking statements within the meaning of Section&nbsp;27A of the Securities Act of 1933 and Section&nbsp;21E of the Securities Exchange
Act of 1934. Such forward-looking statements include, but are not limited to, statements regarding our plans to offer shares of our common stock to the public. These forward-looking statements involve
certain risks and uncertainties that could cause actual results to differ from those anticipated, including, but not limited to, the risks inherent in the process of offering common stock under a
shelf registration statement, our limited operating history, the possibility of a general downturn in economic conditions, the possibility of a general downturn in the public equity markets or in the
market for NASDAQ stocks or for internet retailers, as well as the other risks identified in our Form&nbsp;10-K for the year ended December&nbsp;31, 2003, our
Form&nbsp;10-Q for the quarter ended March&nbsp;31, 2004, our preliminary prospectus supplement filed with the SEC on May&nbsp;7, 2004 pursuant to Rule&nbsp;424(b)(5)&nbsp;and
all of our subsequent filings with the Securities and Exchange Commission, which identify important factors that could cause the actual results to differ materially from those contained in our
forward-looking statements. </FONT></P>

<P><FONT SIZE=2>
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<BR>
<P><br><A NAME="04DEN1808_2">QuickLinks</A><br></P><!-- TOC_BEGIN -->
<FONT SIZE=2><A HREF="#toc_ma1808_1">Overstock.com, Inc. Announces Proposed Common Stock Offering</A></FONT><BR>
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