S&P 400 MidCap Downtrend Replay (2018-08-29 to 2018-10-29)
Replay the S&P 400 MidCap's 2018 correction, a 5.0% slide across 86 daily bars with a 12.8% drawdown. Walk through each session, tackle 11 decision points, and review your simulated choices with the AI coach.
86 daily bars · 11 decision points · 2018-07 to 2018-11 · Stocks
Key facts
This window spans 121 days with a peak-to-trough drawdown of 12.8% and a 6.8% run-up.
- Max drawdown
- −12.8%
- Max run-up
- +6.8%
- Duration
- 121 days
- Largest single-day move
- −3.0%
- Bars
- 86 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
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
In the summer of 2018, the S&P 400 MidCap index entered a correction phase that would test even seasoned participants. The replay spans 86 daily bars from late July through late November, a period when the mid-cap segment faced shifting sentiment amid broader market turbulence. What was at stake was the ability to navigate prolonged downside without succumbing to panic or reckless action—a core skill for any market practitioner.
The numbers tell a story of grinding pressure: the index fell from 1966.41 to 1868.96, a -5.0% decline, yet the max drawdown reached 12.8%, meaning peak-to-trough losses far exceeded the headline figure. The largest single-bar move hit 3.0%, a reminder that even seemingly orderly corrections contain sharp intraday jolts. Across 86 sessions, participants faced 11 decision points, 4 of them critical, requiring them to act or abstain under uncertainty.
For decision training, this replay emphasizes process over prediction. Participants must practice sizing positions, managing trailing risk, and resisting the urge to act on short-term noise. The psychology of enduring a 12.8% drawdown—watching paper losses mount—mirrors real-world stress. Reviewing each of the 11 choices with the AI coach turns mistakes into lessons, building the habits that separate disciplined practitioners from impulsive ones.