UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                 SCHEDULE 13D

                                 Under the Securities Exchange Act of 1934
                            (Amendment No. #__)

                        Giga Information Group, Inc.
                              (Name of Issuer)

                       Common Shares, $.001 par value
                        (Title of Class of Securities)

                                 37517M109
                               (CUSIP Number)

            Pequot Capital Management, Inc., 500 Nyala Farm Road
          Westport, CT  06880  Attn: David J. Malat 203/429-2200
                (Name, Address and Telephone Number of Person
              Authorized to Receive Notices and Communications)
                                      
                              January 1, 1999
                        (Date of Event which Requires
                          Filing of this Statement)


If  the  filing  person  has  previously  filed a statement on Schedule 13G to
report  the  acquisition  which  is  the  subject of this Schedule 13D, and is
filing  this  schedule because of Rule 13d-1(b)(3) or (4), check the following
box    .

Check the following box if a fee is being paid with this statement __.  (A fee
is not required only if the reporting person:  (1) has a previous statement on
file  reporting beneficial ownership of more than five percent of the class of
securities  described  in  Item  1;  and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
 (See  Rule  13d-7.)

NOTE:    Six copies of this statement, including all exhibits, should be filed
with  the  Commission.  See Rule 13d-1(a) for other parties to whom copies are
to  be  sent.

*The remainder of this cover page shall be filled out for a reporting person's
initial  filing  on this form with respect to the subject class of securities,
and  for any subsequent amendment containing information which would alter the
disclosures  provided  in  a  prior  cover  page.

The  information  required  in  the  remainder of this cover page shall not be
deemed  to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the  Act but shall be subject to all other provisions of the Act (however, see
the  Notes).

CUSIP  NO.  37517M109                    PAGE  6  OF  4

6


1          Name  of  Reporting  Person  PEQUOT  CAPITAL  MANAGEMENT,  INC.

     IRS  Identification  No.  of  Above  Person  06-1524885
2          Check  the  Appropriate  Box  if  a  Member  of  a  Group    (a)

      (b)
3          SEC  USE  ONLY

4          Source  of  Funds  00

5          Check  Box  if  Disclosure  of  Legal  Proceedings  is
     Required  Pursuant  to  Items  2(d)  or  2(e)

6          Citizenship  or  Place  of  Organization  CONNECTICUT

     7          Sole  Voting  Power  1,173,337

 NUMBER  OF
 SHARES
 BENEFICIALLY
 OWNED  BY  EACH
 REPORTING
 PERSON  WITH
     8          Shared  Voting  Power    0

     9          Sole  Dispositive  Power  1,173,337

     10          Shared  Dispositive  Power    0

11      Aggregate Amount Beneficially Owned by Each Reporting Person 1,173,337

12         Check Box if the Aggregate Amount in Row 11 Excludes Certain Shares

13          Percent  of  Class  Represented  by  Amount  in  Row  11  11.4%

14          Type  of  Reporting  Person  IA





ITEM  1.    SECURITY  AND  ISSUER

     This  Statement  relates  to  the  Common  Stock,  $.001  par  value (the
"Shares"),  of  Giga  Information  Group,  Inc.  (the  "Company"),  a Delaware
corporation.    The  Company's  principal  executive  office  is  located at 1
Longwater  Circle,  Building  1400  W,  Norwell,  Massachusetts  02061.

ITEM  2.    IDENTITY  AND  BACKGROUND

     This  statement  is  being  filed on behalf of Pequot Capital Management,
Inc.,  a  Connecticut  corporation  (the  "Reporting  Person").  The principal
business  of  the Reporting Person, an investment adviser registered under the
Investment  Advisers  Act  of 1940, is to act as investment adviser to certain
managed accounts.  The executive officers of the Reporting Person are  Messrs.
Arthur  J. Samberg, Daniel C. Benton and Amiel M. Peretz, the directors of the
Reporting  Person  are  Messrs.  Samberg, Benton and Kevin E. O'Brien, and the
controlling  shareholders  are  Messrs.  Samberg and Benton (collectively, the
"Executive  Officers,  Directors  and  Controlling  Persons").    The business
address  of  the  Reporting  Person  and the Executive Officers, Directors and
Controlling  Persons  is  500  Nyala  Farm  Road,  Westport,  CT  06880.

     Neither of the Reporting Person nor the Executive Officers, Directors and
Controlling  Persons  have,  during  the  last  five  years, been convicted in
criminal  proceeding  (excluding  traffic violations or similar misdemeanors).

     Neither of the Reporting Person nor the Executive Officers, Directors and
Controlling  Persons have, during the last five years, been a party to a civil
proceeding  of  a  judicial  or  administrative body of competent jurisdiction
which  resulted  in  a  judgment,  decree  or  final  order  enjoining  future
violations  of,  or  prohibiting or mandating activities subject to federal or
state  securities  laws  or  finding any violation with respect to such laws. 
Each  of  the  Executive  Officers,  Directors and the Controlling Persons are
citizens  of  the  United  States.

ITEM  3.    SOURCE  AND  AMOUNT  OF  FUNDS  OR  OTHER  CONSIDERATION

     As of the date hereof, under rule 13d-3 under the Securities Exchange Act
of  1934, the Reporting Person is deemed to be the beneficial owner of 411,431
warrants and 761,906 Shares for a total of 1,173,337 of the Company's Shares. 
In the transaction which is the subject of this filing, Dawson-Samberg Capital
Management, Inc. ("Dawson-Samberg"), which previously was the beneficial owner
of  such  Shares,  spun off a portion of its investment management business to
the Reporting Person.  This spin-off resulted in the transfer to the Reporting
Person  on  January  1,  1999  of  certain  accounts  for which Dawson-Samberg
previously  exercised investment discretion (the "Accounts"), resulting in the
Reporting  Person's  beneficial  ownership  of  such  Shares.    Such Accounts
continue  to  hold  the  Shares.

ITEM  4.    PURPOSE  OF  TRANSACTION

     The  acquisition of the Shares and warrants described herein were made in
the  ordinary  course  of  the  Reporting Person's investment activities.  The
Reporting  Person  reserves  the  right  to  purchase  additional Shares or to
dispose  of  the  Shares  in  the  open  market  or  in  privately  negotiated
transactions  or  in  any  other  lawful  manner  in  the  future.

     The  Reporting  Person  reserves  the  right  to  take steps to influence
management,  including  with  regard  to  certain  policies  or actions of the
Company, and to suggest certain initiatives to the Company for consideration. 
The  Reporting  Person  also  reserves  the  right to take whatever additional
action  with respect to the Accounts' holdings in the Company as the Reporting
Person  deems  to  be  in  the  best  interest  of  such  Accounts.



ITEM  5.    INTEREST  IN  SECURITIES  OF  THE  ISSUER

     As  of  the  date  hereof,  the Reporting Person beneficially owns in the
aggregate 1,173,337 Shares.  These Shares represent approximately 11.4% of the
10,388,219  Shares  that the Reporting Person believes would be outstanding if
the  Warrants  were exercised/converted into Shares.  The Reporting Person has
the sole power to vote, direct the vote, dispose and direct the disposition of
all  of  the  1,173,337  Shares.

ITEM  6.    CONTRACTS,  ARRANGEMENTS,  UNDERSTANDINGS  OR  RELATIONSHIPS WITH
RESPECT  TO  SECURITIES  OF  THE  ISSUER

     Pursuant  to  a  Registration Rights Agreement dated November 9, 1995 and
subsequent  amendments  thereto (the "Agreement"), the Company has agreed that
it will register additional Shares held by certain shareholders, including the
Accounts,  so  as to enable the Reporting Person to sell in the public markets
the  Shares  for  which  it  has  beneficial  ownership.  The filing of such a
Registration Statement under the Act would occur at a future date upon written
demand  of shareholders whose Shares represent a required percentage of Shares
subject  to  the  Agreement.

ITEM  7.    MATERIAL  TO  BE  FILED  AS  EXHIBITS

     None.


     After  a  reasonable  inquiry and to the best of my knowledge and belief,
the  undersigned  certify  that the information set forth in this statement is
true,  complete  and  correct.


January  8,  1999

Pequot  Capital  Management,  Inc.


By:/s/  David  J.  Malat
   David  J.  Malat,  Chief  Financial  Officer