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US 20-City Composite Historical Replay: 2008-12 to 2011-05

PropertyCity IndexUSCollapse2008-12 to 2011-05Difficulty 2/5FreeView charts

Replay 30 monthly bars of the U.S. 20-City Composite from December 2008, watching the index fall from 150.54 through an 8.6% drawdown. Face six decision points, including two critical ones, and receive an AI coach review of your simulated choices.

30K lines
6Decision points
2Difficulty
monthlyGranularity

30 monthly bars · 6 decision points · 2008-12 to 2011-05 · Property

Key facts

Peak-to-trough drawdown of 8.6% with a 6.9% run-up.

Max drawdown
−8.6%
Max run-up
+6.9%
Largest single-month move
−2.8%
Bars
30 Monthly bars
Decision points
6

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

This replay transports you to December 2008, when the U.S. housing market was still reeling from the global financial crisis. The S&P/Case-Shiller 20-City Composite Home Price Index serves as the lens, covering 30 monthly bars through May 2011. What was at stake was not merely tracking a number, but understanding how the largest asset class in America continued to unwind after the initial shock. The decades covered, the 2000s and 2010s, mark a generational divide in how Americans thought about real estate as an investment.

The index closed at 150.54 when this replay began and finished at 139.88, a decline of -7.1%. During the journey, the maximum drawdown reached 8.6%, with the largest single monthly move hitting 2.8%. Participants faced six decision points, two of which were flagged as critical nodes where positioning choices would significantly influence outcomes. Each bar represented a month in which headlines screamed about foreclosures, bank failures, and government intervention, making this more than a numbers exercise.

The scenario teaches that process matters more than outcome in risk training. You must navigate uncertainty without the benefit of hindsight, managing exposure when the index is falling and volatility is elevated. The two critical decision points test your ability to distinguish between temporary dips and structural breaks. Psychologically, this era challenges participants to remain disciplined when an entire generation's assumptions about property values were being dismantled.