The Indonesian stock exchange was created after the Jakarta Stock Exchange merged with the Surabaya Stock Exchange in 2007. Before that, the Jakarta stock exchange which was based in Jakarta was the main stock exchange in Indonesia.
This list of ticker symbols lists 312 securities and contains several details about the referenced companies: Company name, activity description, CUSIP number, industry, market, country, currency...
The Yahoo EOD downloader can be used to download historical quotes (download it here: Yahoo EOD historical quotes). This object uses the Yahoo compatible symbol names which are available in the Name1 field. Historical EOD data can be also downloaded from the Indonesian stock exchange website (www.idx.co.id). I will create an object that downloads data from this location if some users show interest in that.
Two of the main indices available in the Indonesian stock exchange are the JSX Composite and the Jakarta Islamic Index. The JII or the Jakarta Islamic index tracks 30 corporate stocks and is a measure of the market activities based on the Islamic Sharia.
Sample of listed companies:
ADES -- ADES.JK -- PT AdeS Waters Indonesia Terbuka
APIC -- APIC.JK -- PT Pan Pacific International Terbuka
BTON -- BTON.JK -- PT Betonjaya Manunggal Tbk
FREN -- FREN.JK -- PT Mobile-8 Telecom TBK
INAI -- INAI.JK -- PT Indal Aluminium Industry Terbuka
MAMI -- MAMI.JK -- PT MAS Murni Indonesia Terbuka
MREI -- MREI.JK -- PT Maskapai Reassuransi Indonesia Terbuka
POLY -- POLY.JK -- PT Polysindo Eka Perkasa Terbuka
SEM -- SEM.JK -- PT Holcim Indonesia Terbuka
SPMA -- SPMA.JK -- PT Suparma Terbuka