Regulation · Jakarta Composite Index (2015)
Indonesia's Jakarta Composite plunged 18.6% from March to October 2015 amid a sweeping tax amnesty overhaul. Replay 144 daily bars in this educational simulation, navigate 25 decision points, and receive an AI coach review.
144 daily bars · 25 decision points · 2015-03 to 2015-10 · Stocks
Key facts
This window spans 215 days with a peak-to-trough drawdown of 25.4% and a 8.9% run-up.
- Max drawdown
- −25.4%
- Max run-up
- +8.9%
- Duration
- 215 days
- Largest single-day move
- +4.6%
- Bars
- 144 Daily bars
- Decision points
- 25
Every figure above is computed programmatically from this replay’s own candle series — no editorial input, no LLM. Methodology: Methodology
The market advances day by day. You only see candles up to the current day — as if you were really there.
At key decision points choose Buy / Trim / Exit / Hold. Each decision advances the timeline by one day.
After settlement you get a six-dimension score and an AI coach review. Your result enters the scenario leaderboard.
Event Replay
What happened — and what it teaches
Indonesia's Jakarta Composite faced a pivotal stress test from March to October 2015 as the government pushed through a sweeping tax amnesty overhaul. The regulatory overhaul introduced profound uncertainty about fiscal policy direction, capital repatriation incentives, and the future tax burden on domestic investors. This period represented a critical case study in how major policy shifts can fundamentally reshape investor psychology and market structure in emerging markets.
Over 144 trading sessions from March 6 to October 7, 2015, the index declined from 5514.79 to 4487.13, a total drawdown of 18.6%. The maximum intra-period drawdown reached 25.4%, while the largest single-day swing hit 4.6%, underscoring the elevated volatility environment. Participants navigated 25 distinct decision points, with 9 classified as critical junctures demanding immediate strategic adjustments.
This replay teaches that position sizing must account for extended periods of policy-driven uncertainty, as a 25.4% drawdown can devastate concentrated portfolios. Managing volatility through disciplined risk controls becomes paramount when daily swings of 4.6% test emotional resolve. The 25 decision moments, including 9 critical inflection points, illustrate how regulatory transitions demand systematic frameworks for entries and exits, revealing the delicate balance between analytical process and psychological resilience in high-stakes environments.