Sekawan Intipratama (SIAP), a start-up in coal business, was top gainer last year. It ended the year at Rp465 to represent 447% gain. At this price, Sekawan had market cap of Rp11.16 trillion, bigger than Bumi Resources, Berau Coal, Indika Energy, or Toba Bara Sejahtera. Year-to-date, however, SIAP has lost 36% to Rp299. Still, at this price, Sekawan has market cap of Rp7.18 trillion.To subscribe please click here