<SUBMISSION>
<ACCESSION-NUMBER>0001047469-04-019973
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20040609
<ITEMS>7
<ITEMS>9
<FILING-DATE>20040610
<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>04856784
</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>a2138344z8-k.htm
<DESCRIPTION>8-K
<TEXT>
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<BR>
<FONT SIZE=3 ><A HREF="#04DEN1994_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 the Securities Exchange Act of 1934  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B> June&nbsp;9, 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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<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>
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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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<P><FONT SIZE=2><A
NAME="page_de1994_1_2"> </A> </FONT></P>

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<P><FONT SIZE=2><A
NAME="de1994_item_7._exhibits."> </A>
<A NAME="toc_de1994_1"> </A>
<BR></FONT><FONT SIZE=2><B>Item 7. Exhibits.    <BR>    </B></FONT></P>

<UL>
<DL compact>
<DT style='margin-bottom:-11pt;'><FONT SIZE=2>(c)</FONT></DT><DD><FONT SIZE=2>Exhibits
<BR><BR></FONT></DD><DT style='margin-bottom:-11pt;'><FONT SIZE=2>99.1</FONT></DT><DD><FONT SIZE=2>Press
Release dated June&nbsp;9, 2004 </FONT></DD></DL>
</UL>

<P><FONT SIZE=2><A
NAME="de1994_item_9._regulation_fd_disclosure."> </A>
<A NAME="toc_de1994_2"> </A>
<BR></FONT><FONT SIZE=2><B>Item 9. Regulation FD Disclosure.    <BR>    </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On June&nbsp;9, 2004, Overstock.com,&nbsp;Inc. (the "Company") issued a press release announcing that the underwriters of the Company's recent underwritten
registered public offering of 1,200,000 shares of its common stock had exercised their over-allotment option to purchase an additional 100,000 shares of common stock from the Company. The
text of the press release is included as an exhibit to this Current Report on Form&nbsp;8-K. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Neither
the filing of any press release as an exhibit to this Current Report on Form&nbsp;8-K nor the inclusion in such press release of a reference to the Company's
Internet address shall, under any circumstances, be deemed to incorporate the information available at such Internet address into this Current Report on Form&nbsp;8-K. The information
available at the Company's Internet address is not part of this Current Report on Form&nbsp;8-K or any other report filed by the Company with the Securities and Exchange Commission. </FONT></P>

<P><FONT SIZE=2>
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NAME="page_jc1994_1_3"> </A> </FONT></P>

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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="jc1994_signature"> </A>
<A NAME="toc_jc1994_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
thereunto duly authorized. </FONT></P>

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&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>
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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 WIDTH="5%"><FONT SIZE=2><BR>
By:</FONT></TD>
<TD WIDTH="1%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD WIDTH="45%"><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 COLSPAN=3><FONT SIZE=2><BR>
Date: June&nbsp;9, 2004</FONT></TD>
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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="ka1994_exhibit_index"> </A>
<A NAME="toc_ka1994_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>
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<TD WIDTH="10%" ALIGN="RIGHT"><FONT SIZE=2>(c</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>)</FONT></TD>
<TD WIDTH="88%"><FONT SIZE=2>Exhibits</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="10%" ALIGN="RIGHT"><FONT SIZE=2><BR>
99.1</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD WIDTH="88%"><FONT SIZE=2><BR>
Press Release dated June&nbsp;9, 2004.</FONT></TD>
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<P><FONT SIZE=2>
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<BR>
<P><br><A NAME="04DEN1994_1">QuickLinks</A><br></P><!-- TOC_BEGIN -->
<UL>
<FONT SIZE=2><A HREF="#toc_de1994_1">Item 7. Exhibits.</A></FONT><BR>
<FONT SIZE=2><A HREF="#toc_de1994_2">Item 9. Regulation FD Disclosure.</A></FONT><BR>
</UL>
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<FONT SIZE=2><A HREF="#toc_jc1994_1">SIGNATURE</A></FONT><BR>
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<FONT SIZE=2><A HREF="#toc_ka1994_1">EXHIBIT INDEX</A></FONT><BR>
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<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a2138344zex-99_1.htm
<DESCRIPTION>EX 99.1
<TEXT>
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<FONT SIZE=3 ><A HREF="#04DEN1994_2">QuickLinks</A></FONT>
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<P ALIGN="RIGHT"><FONT SIZE=2><B>Exhibit&nbsp;99.1  </B></FONT></P>

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<TD WIDTH="29%"><FONT SIZE=2><B>FOR IMMEDIATE RELEASE</B></FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="33%"><FONT SIZE=2><B>Investor Contact:</B></FONT><FONT SIZE=2><BR>
Kathryn Huang Hadley<BR>
Overstock.com,&nbsp;Inc.<BR>
+1 (801) 947-3282<BR>
khuang@overstock.com</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="33%"><FONT SIZE=2><B>Media Contact:</B></FONT><FONT SIZE=2><BR>
Scott Blevins<BR>
Overstock.com,&nbsp;Inc.<BR>
+1 (801) 947-3133<BR>
sblevins@overstock.com</FONT></TD>
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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="ma1994_overstock.com,_inc._announces___ove04858"> </A>
<A NAME="toc_ma1994_1"> </A>
<BR></FONT><FONT SIZE=2><B>Overstock.com,&nbsp;Inc. Announces Closing of Underwriters'<BR>  Over-allotment Option relating to<BR>  Auction-Based<BR>  Common Stock Offering    <BR>    </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SALT LAKE CITY, June&nbsp;9, 2004&#151;Overstock.com,&nbsp;Inc. (NASDAQ: OSTK) today announced that the underwriters of the Company's recent
auction-based underwritten public offering of its common stock have exercised their over-allotment option to purchase an additional 100,000 shares of the Company's common stock. The
closing occurred on June&nbsp;9, 2004, and resulted in gross proceeds to the Company of approximately $2.9&nbsp;million. </FONT></P>


<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;WR
Hambrecht&nbsp;+&nbsp;Co LLC acted as the sole book-running manager for the offering. JMP Securities LLC acted as co-lead manager. The offering was 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;Overstock
anticipates using the net proceeds of the sale of the additional shares pursuant to the exercise of the over-allotment option primarily for general corporate
purposes and working capital requirements, including sales and marketing activities and inventory purchases. </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 final prospectus supplement relating to these securities has been
filed with the Securities and Exchange Commission. The securities may be sold only by means of the final prospectus supplement and the accompanying prospectus, copies of which may 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, 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 intentions regarding the uses of the net proceeds of the sale of the shares to be issued. 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 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 prospectus dated March&nbsp;8, 2004, our
prospectus supplement dated May&nbsp;13, 2004 filed with the SEC on May&nbsp;14, 2004 pursuant to Rule&nbsp;424(b)(2)&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="04DEN1994_2">QuickLinks</A><br></P><!-- TOC_BEGIN -->
<FONT SIZE=2><A HREF="#toc_ma1994_1">Overstock.com, Inc. Announces Closing of Underwriters' Over-allotment Option relating to Auction-Based Common Stock Offering</A></FONT><BR>
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