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USD/KRW Historical Replay: 2018-09 to 2018-12

ForexEmerging MarketsJPCrash2018-09 to 2018-12Difficulty 1/5FreeView charts

Replay 66 daily bars of USD/KRW from 2018-09 to 2018-12 across a 3.0% drawdown. Step through each session, face 4 critical decision points, and receive an AI coach review of your choices in this simulated, educational market replay.

66K lines
12Decision points
1Difficulty
DailyGranularity

66 daily bars · 12 decision points · 2018-09 to 2018-12 · Forex

Key facts

This window spans 92 days with a peak-to-trough drawdown of 3.0% and a 3.1% run-up.

Max drawdown
−3.0%
Max run-up
+3.1%
Duration
92 days
Largest single-day move
−1.1%
Bars
66 Daily bars
Decision points
12

Every figure above is computed programmatically from this replay’s own candle series — no editorial input, no LLM. Methodology: Methodology

How to play
  1. The market advances day by day. You only see candles up to the current day — as if you were really there.

  2. At key decision points choose Buy / Trim / Exit / Hold. Each decision advances the timeline by one day.

  3. 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

The USD/KRW pair entered the final quarter of 2018 against a backdrop of heightened volatility across emerging market currencies. From September 6 to December 7, 2018, traders faced a compressed window of 66 daily bars in which to navigate an uncertain macroeconomic landscape. The Korean won's trajectory during this period was emblematic of broader EM currency pressures, making this a consequential training ground for those seeking to understand how geopolitical crosscurrents manifest in forex price action. What was at stake was not merely directional conviction but the discipline to manage risk through a sustained period of instability.

The closing price shifted from 1124.7 to 1119.6, a net movement of just -0.5% across the full data span. Yet this modest headline figure concealed more turbulent underlying dynamics: the maximum drawdown reached 3.0%, and the largest single-bar move measured 1.1%. For participants replaying this period, the gap between aggregate drift and intraperiod turbulence presented the central challenge. Twelve decision points punctuated the replay, four of them flagged as critical moments where positioning and risk management decisions carried heightened consequence.

This replay distills essential lessons in process discipline, risk calibration, and psychological resilience. The 3.0% peak-to-trough drawdown tests whether traders can endure temporary setbacks without abandoning pre-defined strategies. The 1.1% single-bar volatility reminds us that outlier moves can test position sizing assumptions in an instant. With four critical junctures embedded within 66 bars, the scenario cultivates the habit of distinguishing signal from noise—deciding when to act decisively and when to preserve capital for more favorable conditions. Through this educational lens, the 2010s vintage period serves not as a crystal ball but as a training ground for sound decision-making frameworks.