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Corn Historical Replay: 2020-01 to 2020-06

CommoditiesGrainsCNPandemic2020-01 to 2020-06Difficulty 3/5FreeView charts

Replay China's corn market across 86 daily bars from January to June 2020, capturing a 21.8% drawdown as the pandemic shock unfolded. Step through each authentic trading day, face 5 critical decision points, and receive an AI coach review in a fully simulated educational environment.

86K lines
15Decision points
3Difficulty
DailyGranularity

86 daily bars · 15 decision points · 2020-01 to 2020-06 · Commodities

Key facts

This window spans 124 days with a peak-to-trough drawdown of 21.8% and a 8.2% run-up.

Max drawdown
−21.8%
Max run-up
+8.2%
Duration
124 days
Largest single-day move
−4.3%
Bars
86 Daily bars
Decision points
15

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

In early 2020, China corn futures stood at a precarious crossroads as the novel coronavirus spread beyond Wuhan. The period from late January to early June 2020 covered 86 trading days in an era defined by pandemic uncertainty, where supply chains seized up and agricultural commodities faced unprecedented demand shocks. Market participants entering this replay faced the fundamental question of how to position themselves when conventional analysis broke down under the weight of a global health emergency.

The price action told a brutal story. From a close of 384.25, corn fell to 323.25, a decline of -15.9%. The maximum drawdown reached 21.8%, with the largest single-bar move hitting 4.3% as panic buying and selling cascaded through markets. Participants encountered 15 decision points across the replay, of which 5 proved critical—moments where position sizing, stop placement, or risk exposure determined whether one survived the full scenario or capitulated early. The 2020s had arrived with a reminder that black swan events could devastate even seemingly stable commodity positions within weeks.

This replay teaches that process trumps prediction during systemic shocks. No analyst could have accurately forecast the pandemic's precise impact on corn demand and logistics, yet disciplined risk management—sizing positions to withstand the 21.8% drawdown, avoiding concentrated exposure—would have preserved capital through the crisis. The 5 critical decision points expose how psychological anchors like averaging down or premature profit-taking can compound losses. For traders in training, the value lies not in anticipating the shock but in building the mental frameworks and position discipline necessary to execute consistently when the market itself loses its footing.