WIG20/30 Advance-decline LineAdvance-decline line for Warsaw Stock Exchange (GPW)
EN: Since GPW doesn't give us advance/decline data similar to NYSE, it's not hard to calculate it manually (WIG20 and WIG30 - can be changed in settings)
PL: Wskaźnik A/D line dla giełdy Warszawskiej (działa dla WIG20 i WIG30)
