Zmiany nazw spółek na GPW - prośba o pomoc

 Witajcie.

Zwracam się z prośbą o pomoc w identyfikacji spółek, które zmieniły nazwy. Oto lista spółek, które wygenerowałem z oficjalnych danych z GPW.

Czytamy tabelkę w taki sposób:

1. Lista tickerów, które pojawiły się na danej sesji po raz pierwszy, czyli np:

['COMPLEX', 'REINHOLD'] since 2007.12.13

2. Następnie mamy datę ostatniej sesji, na której były notowane tickery, które podaję w liście. Dodatkowo dodaję do nich datę ich pierwszego notowania, czyli:

 last: 2007.12.12 [('ELEKTROEX', '1995.02.15')]

Widzimy zatem, że na sesji 13 grudnia 2007 pojawiły się dwie spółki Complex i Reinhold, a sesję wcześniej ostatnie notowanie miał Elektroex. I teraz pojawia się pytanie: czy Elektroex zmienił nazwę na Complex, czy są to dwie zupełnie różne spółki?

Niektóre są oczywiste, np. 'MOSTOSTAL KRAKÓW' został zmieniony z 'MOSTOSTAL KRAK'.

Oto pełna lista:

['BUDIMEX'] since 1995.05.25, last: 1995.05.24 [('D', '1994.11.24')]

['BGDAÑSKI', 'GÓRA¯D¯E', 'MOSTOSTAL KRAKÓW'] since 1997.06.02, last: 1997.05.30 [('G', '1995.10.06'), ('BGDA', '1995.12.18'), ('MOSTOSTAL KRAK', '1997.01.14')]

['AMPLI'] since 1997.10.14, last: 1997.10.13 [('BGDAÑSKI', '1997.06.02')]

['PBK'] since 1997.10.21, last: 1997.10.20 [('BIG2', '1997.09.18')]

['DROZAPOL'] since 2004.12.23, last: 2004.12.22 [('MANOMETRY', '1998.08.12')]

['NOVITUS'] since 2005.12.22, last: 2005.12.21 [('OBORNIKI', '1998.09.09')]

['HYPERION', 'INTERSPPL'] since 2006.08.18, last: 2006.08.17 [('SOKOLOW', '1993.08.10')]

['IMMOEAST'] since 2007.05.25, last: 2007.05.24 [('POLMOSLBN', '2005.02.24')]

['PRONOX'] since 2007.07.18, last: 2007.07.17 [('SPIN', '2002.05.23')]

['GFPREMIUM'] since 2007.09.03, last: 2007.08.31 [('HYDROBUD', '1998.01.16')]

['ALTERCO', 'BLACKLION', 'CALATRAVA', 'COGNOR', 'ERG', 'GASTELZUR', 'GETINOBLE', 'HBPOLSKA', 'INVESTCON', 'KOFOLA', 'MIT', 'NEUCA', 'OPONEO.PL', 'POLCOLORIT', 'PONAR', 'PROTEKTOR', 'RUBICON', 'TRION', 'WIKANA'] since 2007.12.07, last: 2007.12.06 [('PPWK', '1996.01.10'), ('MASTERS', '1997.02.20'), ('CENSTALGD', '1997.03.19'), ('04PRO', '1997.06.12'), ('05VICT', '1997.06.12'), ('IBSYSTEM', '1997.11.07'), ('PONARFEH', '1998.01.19'), ('LZPS', '1998.07.14'), ('10FOKSAL', '2001.01.02'), ('TRASINTUR', '2001.07.17'), ('HOOP', '2003.08.06'), ('TORFARM', '2004.11.22'), ('POLCOLOR', '2004.12.09'), ('SRUBEX', '2005.02.17'), ('ZTSERG', '2005.04.18'), ('INWESTCON', '2006.08.09'), ('ZURAWIE', '2006.12.21'), ('NOBLEBANK', '2007.05.30'), ('HBWLOCLAW', '2007.09.18'), ('OPONEO', '2007.11.13')]

['COMPLEX', 'REINHOLD'] since 2007.12.13, last: 2007.12.12 [('ELEKTROEX', '1995.02.15')]

['EFH', 'INTROL'] since 2008.01.21, last: 2008.01.18 [('ELEKTRIM', '1992.03.26')]

['K2INTERNT'] since 2008.06.06, last: 2008.06.05 [('OPOCZNO', '2005.06.24')]

['AZOTYTARNOW'] since 2008.06.30, last: 2008.06.27 [('LDASA', '1996.04.11')]

['PCCINTER'] since 2010.02.08, last: 2010.02.05 [('ZNTKLAPY', '2007.11.07')]

['KOV'] since 2010.05.25, last: 2010.05.24 [('BANKIER.PL', '2006.06.19')]

['TAURONPE'] since 2010.06.30, last: 2010.06.29 [('OPTOPOL', '2008.04.09')]

['KCI', 'OPTEAM'] since 2010.10.11, last: 2010.10.08 [('PONAR', '2007.12.07')]

['CELTIC', 'POLMED'] since 2010.12.23, last: 2010.12.22 [('KABLE', '1991.04.16')]

['MIRACULUM'] since 2011.01.07, last: 2011.01.05 [('KOLASTYNA', '2007.04.16')]

['WADEX'] since 2011.01.12, last: 2011.01.11 [('DZPOLSKA', '1994.07.06')]

['PBSFINANSE', 'VOTUM'] since 2011.01.17, last: 2011.01.14 [('SWARZEDZ', '1991.06.25'), ('BEEFSAN', '2000.03.09'), ('RUCH', '2007.01.31'), ('ORZEL', '2007.02.15')]

['CCENERGY'] since 2011.01.27, last: 2011.01.26 [('KAREN', '2007.06.27')]

['AWBUD'] since 2011.03.04, last: 2011.03.03 [('INSTAL', '1998.06.01')]

['PRAGMAFA'] since 2011.04.11, last: 2011.04.08 [('GFPREMIUM', '2007.09.03')]

['BNPPL', 'IMCOMPANY', 'STIGROUP'] since 2011.05.04, last: 2011.05.02 [('FORTISPL', '1994.11.07')]

['CDRED'] since 2011.08.02, last: 2011.08.01 [('OPTIMUS', '2002.01.28')]

['COALENERG', 'COLIAN'] since 2011.08.04, last: 2011.08.03 [('JUTRZENKA', '1995.05.17')]

['PELION'] since 2011.12.01, last: 2011.11.30 [('PGF', '1998.02.17')]

['HERKULES'] since 2011.12.16, last: 2011.12.15 [('GASTELZUR', '2007.12.07')]

['ROVESE'] since 2012.01.18, last: 2012.01.17 [('CERSANIT', '1998.05.25')]

['GREMISLTN'] since 2012.02.28, last: 2012.02.27 [('EUROFAKTR', '2004.12.30')]

['IFCAPITAL'] since 2012.03.19, last: 2012.03.16 [('HERMAN', '2008.04.14')]

['KANIA'] since 2012.03.27, last: 2012.03.26 [('IZNS', '2008.12.22')]

['IDEON'] since 2012.05.23, last: 2012.05.22 [('CENTROZAP', '1999.09.29')]

['REGNON'] since 2012.05.30, last: 2012.05.29 [('PRONOX', '2007.07.18')]

['URSUS'] since 2012.06.08, last: 2012.06.06 [('WARFAMA', '2008.01.25')]

['KBDOM'] since 2012.06.19, last: 2012.06.18 [('TRION', '2007.12.07')]

['DUON'] since 2012.07.02, last: 2012.06.29 [('CPENERGIA', '2007.11.28')]

['LIBRA'] since 2012.09.04, last: 2012.09.03 [('HARDEX', '2008.07.15')]

['GREENECO'] since 2012.09.25, last: 2012.09.24 [('ANTI', '2009.04.03')]

['VOXEL'] since 2012.10.23, last: 2012.10.22 [('TUEUROPA', '1999.06.08')]

['CDPROJEKT'] since 2013.01.04, last: 2013.01.03 [('CDRED', '2011.08.02')]

['GREMMEDIA'] since 2013.02.01, last: 2013.01.31 [('GREMISLTN', '2012.02.28')]

['QUMAK'] since 2013.02.08, last: 2013.02.07 [('QUMAKSEK', '2006.08.03')]

['IMPERA'] since 2013.02.22, last: 2013.02.21 [('BBICAPNFI', '1997.06.12')]

['SMT'] since 2013.03.06, last: 2013.03.05 [('ADVGRUPA', '2011.04.13')]

['CNT'] since 2013.03.22, last: 2013.03.21 [('ENERGOPOL', '1998.11.06')]

['ATENDE'] since 2013.04.22, last: 2013.04.19 [('ATMSI', '2012.05.28')]

['BBIZEN'] since 2013.05.06, last: 2013.05.02 [('BBIZENNFI', '1997.06.12')]

['GLOBALNGR', 'IIAAV'] since 2013.05.07, last: 2013.05.06 [('LIBRA', '2012.09.04')]

['GLOBALNRG'] since 2013.05.15, last: 2013.05.14 [('GLOBALNGR', '2013.05.07')]

['SERINUS'] since 2013.07.03, last: 2013.07.02 [('KOV', '2010.05.25')]

['RAWLPLUG'] since 2013.07.10, last: 2013.07.09 [('KOELNER', '2004.11.30')]

['WINVEST'] since 2013.07.29, last: 2013.07.26 [('IGROUP', '1996.10.14'), ('EUROMARK', '2006.09.29')]

['BBIDEV'] since 2013.08.13, last: 2013.08.12 [('BBIDEVNFI', '1997.06.12')]

['GRUPAAZOTY'] since 2013.09.06, last: 2013.09.05 [('AZOTYTARNOW', '2008.06.30')]

['CIGAMES'] since 2013.09.25, last: 2013.09.24 [('CITYINTER', '2007.12.28')]

['ALTA'] since 2013.10.18, last: 2013.10.17 [('TUP', '1999.01.20')]

['SKYSTONE'] since 2013.11.05, last: 2013.11.04 [('BBIZEN', '2013.05.06')]

['MBANK'] since 2013.11.26, last: 2013.11.25 [('BRE', '1992.10.06')]

['ORANGEPL'] since 2014.01.14, last: 2014.01.13 [('TPSA', '1998.11.18')]

['INDYGO'] since 2014.01.22, last: 2014.01.21 [('LSTCAPITA', '2010.05.26')]

['GLOBCITYHD', 'INC'] since 2014.03.06, last: 2014.03.05 [('CCIINT', '2006.12.08'), ('INVESTCON', '2007.12.07')]

['IMMOBILE'] since 2014.04.03, last: 2014.04.02 [('MAKRUM', '2007.08.23')]

['COLUMBUS'] since 2014.05.06, last: 2014.05.05 [('STIGROUP', '2011.05.04')]

['MSXRESOUR'] since 2014.06.02, last: 2014.05.30 [('MOSTALEXP', '1992.05.28')]

['REDWOOD'] since 2014.06.06, last: 2014.06.05 [('COMPLEX', '2007.12.13')]

['IFSA'] since 2014.07.09, last: 2014.07.08 [('BUDVARCEN', '2007.07.11')]

['STARHEDGE'] since 2014.07.29, last: 2014.07.28 [('GLOBALNRG', '2013.05.15')]

['INVENTUM', 'POLWAX'] since 2014.10.06, last: 2014.10.03 [('IDEATFI', '2011.03.03')]

['KERDOS'] since 2014.11.24, last: 2014.11.21 [('HYGIENIKA', '2004.07.05')]

['AURUM'] since 2015.01.28, last: 2015.01.27 [('INVENTUM', '2014.10.06')]

['EVEREST'] since 2015.02.17, last: 2015.02.16 [('WDMCP', '2014.11.26')]

['PMPG'] since 2015.03.05, last: 2015.03.04 [('POINTGROUP', '1995.12.22')]

['CFI'] since 2015.03.06, last: 2015.03.05 [('INTAKUS', '2010.03.26')]

['IBSM'] since 2015.05.11, last: 2015.05.08 [('PPG', '2013.06.25')]

['BGZBNPP'] since 2015.06.01, last: 2015.05.29 [('BGZ', '2011.05.27')]

['SOHODEV'] since 2015.06.17, last: 2015.06.16 [('BLACKLION', '2007.12.07')]

['PLATYNINW'] since 2015.07.08, last: 2015.07.07 [('DRAGOWSKI', '2008.09.29')]

['HUBSTYLE'] since 2015.09.01, last: 2015.08.31 [('NOKAUT', '2012.03.14')]

['POLYMETAL'] since 2015.09.08, last: 2015.09.07 [('MEWA', '2007.01.03')]

['PSG'] since 2015.09.14, last: 2015.09.11 [('TELEPOLSKA', '2014.07.07')]

['WDX'] since 2015.10.02, last: 2015.10.01 [('WANDALEX', '2000.11.29')]

['LARQ'] since 2015.10.27, last: 2015.10.26 [('YAWAL', '1998.06.26'), ('CAMMEDIA', '2008.06.02')]

['GRAVITON'] since 2015.11.02, last: 2015.10.30 [('DMWDM', '2011.07.19')]

['AILLERON'] since 2015.11.06, last: 2015.11.05 [('WINDMOBIL', '2015.09.25')]

['CITYSERV'] since 2015.11.16, last: 2015.11.13 [('ADVADIS', '1997.11.17'), ('PBOANIOLA', '2011.07.06')]

['MBWS'] since 2015.12.04, last: 2015.12.03 [('SOBIESKI', '2008.04.21')]

['TOPMEDICA'] since 2015.12.14, last: 2015.12.11 [('PTI', '2010.12.01')]

['LOKUM', 'MDIENERGIA'] since 2015.12.15, last: 2015.12.14 [('SKYSTONE', '2013.11.05')]

['APLITT'] since 2016.01.08, last: 2016.01.07 [('SKOK', '2008.07.04')]

['OEX'] since 2016.01.13, last: 2016.01.12 [('TELL', '2005.11.17')]

['GREMINWES'] since 2016.01.14, last: 2016.01.13 [('GREMMEDIA', '2013.02.01')]

['LARK', 'SARE'] since 2016.02.15, last: 2016.02.12 [('MIT', '2007.12.07')]

['BACD'] since 2016.03.17, last: 2016.03.16 [('AURUM', '2015.01.28')]

['IALBGR'] since 2016.04.27, last: 2016.04.26 [('SMT', '2013.03.06')]

['XTB'] since 2016.05.17, last: 2016.05.16 [('XTRADEBDM', '2016.05.06')]

['AIRWAY'] since 2016.05.24, last: 2016.05.23 [('ALTERCO', '2007.12.07')]

['AUTOPARTN'] since 2016.06.06, last: 2016.06.03 [('EFH', '2008.01.21')]

['ABADONRE'] since 2016.06.24, last: 2016.06.23 [('VARIANT', '2005.08.05')]

['FMG'] since 2016.08.08, last: 2016.08.05 [('PSG', '2015.09.14')]

['MANGATA'] since 2016.10.03, last: 2016.09.30 [('ZETKAMA', '2005.04.29')]

['GOBARTO'] since 2016.10.21, last: 2016.10.20 [('DUDA', '2003.01.30')]

['PFLEIDER'] since 2016.10.28, last: 2016.10.27 [('GRAJEWO', '1997.05.06')]

['YOLO'] since 2016.11.15, last: 2016.11.14 [('PRESCO', '2011.09.20')]

['IFIRMA'] since 2017.06.08, last: 2017.06.07 [('PWRMEDIA', '2008.05.06')]

['SLEEPZAG'] since 2017.09.04, last: 2017.09.01 [('BMPAG', '2004.12.16')]

['PGO'] since 2017.09.14, last: 2017.09.13 [('PGODLEW', '2011.10.10')]

['AUGA'] since 2017.11.03, last: 2017.11.02 [('AGROWILL', '2011.07.08')]

['ITMTRADE', 'VENTUREIN'] since 2017.11.06, last: 2017.11.03 [('BRIJU', '2014.05.29')]

['OAT'] since 2018.04.19, last: 2018.04.18 [('KERDOS', '2014.11.24')]

['SANPL', 'SANPL2'] since 2018.09.10, last: 2018.09.07 [('BZWBK', '2001.06.25'), ('BZWBK2', '2017.12.19')]

['PRIMETECH'] since 2018.10.12, last: 2018.10.11 [('KOPEX', '1998.06.04')]

['REINO'] since 2019.01.23, last: 2019.01.22 [('GRAVITON', '2015.11.02')]

['BNPPPL'] since 2019.04.03, last: 2019.04.02 [('BGZBNPP', '2015.06.01')]

['VRG'] since 2019.06.24, last: 2019.06.21 [('VISTULA', '1993.09.30')]

['DEVELIA'] since 2019.09.10, last: 2019.09.09 [('LCCORP', '2007.06.29')]

['DIGITREE'] since 2019.11.28, last: 2019.11.27 [('SARE', '2016.02.15')]

['PUNKPIRAT'] since 2020.06.01, last: 2020.05.29 [('IQP', '2011.10.11')]

['AIGAMES'] since 2020.07.06, last: 2020.07.03 [('SETANTA', '2017.01.19')]

['NOVAVISGR'] since 2020.10.01, last: 2020.09.30 [('RUBICON', '2007.12.07')]

['ALLEGRO'] since 2020.10.12, last: 2020.10.09 [('WADEX', '2011.01.12'), ('STELMET', '2016.10.25')]

['NEXITY'] since 2020.10.23, last: 2020.10.22 [('EVEREST', '2015.02.17')]

['3RGAMES'] since 2021.01.19, last: 2021.01.18 [('HUBSTYLE', '2015.09.01')]

['PGFGROUP'] since 2021.02.12, last: 2021.02.11 [('ZASTAL', '2007.08.27')]

['K2HOLDING'] since 2021.02.18, last: 2021.02.17 [('K2INTERNT', '2008.06.06')]

['SATIS'] since 2021.04.30, last: 2021.04.29 [('IALBGR', '2016.04.27')]

['VERCOM'] since 2021.05.06, last: 2021.05.05 [('PEIXIN', '2013.10.09'), ('JJAUTO', '2014.06.18'), ('FENGHUA', '2014.11.06')]

['IMPERIO'] since 2021.06.17, last: 2021.06.16 [('IMPERA', '2013.02.22')]

['ALTUS'] since 2021.09.06, last: 2021.09.03 [('ALTUSTFI', '2014.08.20')]

['MANYDEV'] since 2021.09.13, last: 2021.09.10 [('PLATYNINW', '2015.07.08')]

['GIGROUP', 'POLTREG'] since 2021.11.23, last: 2021.11.22 [('WORKSERV', '2012.05.24')]

['GREENX'] since 2021.12.17, last: 2021.12.16 [('PRAIRIE', '2015.09.04')]

['COMPREMUM'] since 2022.01.24, last: 2022.01.21 [('POZBUD', '2008.09.19')]

['HUUUGE'] since 2022.03.04, last: 2022.03.03 [('HUUUGE-S144', '2021.02.19')]

['MOLECURE'] since 2022.04.04, last: 2022.04.01 [('OAT', '2018.04.19')]

['DIGITANET'] since 2022.05.02, last: 2022.04.29 [('4FUNMEDIA', '2010.12.20')]

['SIMFABRIC'] since 2022.08.12, last: 2022.08.11 [('LOTOS', '2005.06.09')]

['LESS'] since 2022.09.02, last: 2022.09.01 [('GROCLIN', '1998.11.24')]

['NTCAPITAL'] since 2022.09.20, last: 2022.09.19 [('INVISTA', '2013.09.05')]

['VIGOPHOTN'] since 2022.10.07, last: 2022.10.06 [('VIGOSYS', '2014.11.25')]

['PJPMAKRUM'] since 2022.10.17, last: 2022.10.14 [('PROJPRZEM', '1999.08.10'), ('URSUS', '2012.06.08')]

['UNFOLD'] since 2022.12.08, last: 2022.12.07 [('VENTUREIN', '2017.11.06')]

['RAEN'] since 2023.03.21, last: 2023.03.20 [('PUNKPIRAT', '2020.06.01')]

['ONESANO'] since 2023.03.29, last: 2023.03.28 [('SKOTAN', '1999.01.11')]

['GRENEVIA'] since 2023.04.06, last: 2023.04.05 [('ZYWIEC', '1991.09.24'), ('FAMUR', '2006.08.04')]

['SNTVERSE'] since 2023.07.18, last: 2023.07.17 [('BIOMEDLUB', '2015.01.30')]

['CYBERFLKS'] since 2023.08.03, last: 2023.08.02 [('R22', '2017.12.29')]

['FABRITY'] since 2023.08.25, last: 2023.08.24 [('K2HOLDING', '2021.02.18')]

['TEXT'] since 2023.09.22, last: 2023.09.21 [('LIVECHAT', '2014.04.11')]

['CAPITEA'] since 2023.10.24, last: 2023.10.23 [('GETBACK', '2017.07.17')]