====== Indonesia Stock Exchange (IDX) ======

The Indonesia Stock Exchange, the result of a merger between Surabaya Stock Exchange and Jakarta Stock Exchange, is the primary equity market in Indonesia.
 
[[https://www.idnfinancials.com/ | Homepage]]

Currency: Indonesian Rupiah (IDR)

[[http://www.idx.co.id/en-us/news/trading-holiday/ | Holiday Calendar]]\\
[[http://www.idx.co.id/en-us/investor/trading-hours/ | Trading Hours]]


==== Order Types ====
  * Limit Buy/Sell→ShortSell (Day)

==== Basic Market Rules ====
  * Lot Size: 500 shares.
  * Tick Size: varies by price, as follows: 

^ Price Range ^ Tick Size ^
| Rp 500 | Rp 1 | 
| Rp 500 - 5,000 | Rp 5 |
| > Rp 5,000 | Rp 25 |

  * Short Sale Rules: naked short selling is prohibited. A short locate must be obtained and all short sell orders must be properly marked.
  * Circuit Breakers: as follows:

^ Stage ^ Trigger ^ Action ^
| First | If the IDX composite index falls by 10% from the previous day's close | All trading in listed securities will be halted for 30 minutes |
| Second | If the IDX composite index falls by 15% from the previous day's close (i.e., by another 5%) | Trading in all listed securities will be suspended until the closing time of that session, or more (given approval by Indonesia's Financial Services Authority)|

==== Auction Mechanisms ====

Both the opening and closing auction mechanisms in Indonesia operate by matching all open orders on a price-time priority basis.

=== Open ===

Pre-Opening Session: orders can be entered from 08:45:00 - 08:55:00, with order matching occurring from 08:55:01 - 08:59:59 ahead of the market open at 09:00:00.

=== Close ===

Continuous Auction: matching selling offer against buying demand entered in pre-closing session from 15:50:00 to 16:00:00 using price-time priority.

The closing price is based on the best price and largest volume of shares matched.

**Auction Periods**

Pre-Closing Session: 15:50:00 - 16:00:00 - securities exchange member to input selling offers or buying demand

Closing Auction: 16:00:01 - 16:04:59 - JATS performs the incurred formation process of Closing Price, and performs matching auction continuously selling offer against buying demand on Closing Price based on price-time priority

**Order Types:** Limit Order with TIF set to DAY.

=====See Also=====
  * [[market_guides|Market Guides]]