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Corn Historical Replay: 2018-07 to 2018-10

CommoditiesGrainsUSCrisis2018-07 to 2018-10Difficulty 2/5FreeView charts

Replay 64 daily bars of corn from July to October 2018, when prices climbed 6.5% amid a peak drawdown of 9.7%. Step through the crisis day-by-day, face 11 decision points, and receive AI coach feedback on a simulated, educational market replay.

64K lines
11Decision points
2Difficulty
DailyGranularity

64 daily bars · 11 decision points · 2018-07 to 2018-10 · Commodities

Key facts

This window spans 88 days with a peak-to-trough drawdown of 9.7% and a 12.7% run-up.

Max drawdown
−9.7%
Max run-up
+12.7%
Duration
88 days
Largest single-day move
−3.9%
Bars
64 Daily bars
Decision points
11

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

Corn is a cornerstone of global commodity markets, and the summer of 2018 delivered a sharp reminder of how quickly agricultural prices can pivot under stress. From July 9 to October 5, 2018 — 64 daily bars in the 2010s — traders faced a live crisis environment where supply concerns, weather uncertainty, and shifting trade flows converged. The stakes were clear: navigate the volatility without letting drawdowns erode discipline, or risk compounding losses in a fast-moving market.

The replay opens with prices at 345.75 and closes at 368.25, delivering a net gain of 6.5% over the period. That headline number, however, conceals a turbulent ride. The market endured a peak drawdown of 9.7%, with the largest single-bar move hitting 3.9%. Across the 64-session span, participants encountered 11 decision points — 4 of them critical inflection moments where direction could shift sharply. The path from start to finish was anything but straight, rewarding those who managed risk actively rather than those who simply held on.

For decision training, this replay sharpens three core competencies. First, position sizing matters most when drawdowns bite hardest; a 9.7% max pullback can test conviction and force premature exits. Second, planning must anticipate the 3.9% intrabar shocks that can sweep stops or trigger emotional overreactions. Third, the presence of 4 critical points reminds learners that most of a market's directional information concentrates in a handful of sessions — recognizing them requires patience and process, not impulse. Stepping through this crisis day-by-day builds the calibrated reflexes that disciplined traders rely on when real capital is on the line.