Introduction
In the ever-evolving landscape of financial markets, the ability to anticipate shifts and manage risks is paramount. At MarketVibe, our research focuses on understanding the dynamics that signal potential market changes. One of our key inquiries has been: "What do past At-Risk periods in the Crash Warning Index (CWI) have in common?" This question is crucial for traders as it addresses the challenge of late exits and surprise drawdowns, offering insights that could refine decision-making processes and improve risk management.
Data & Methodology
To explore this question, we examined a variety of data types, including index prices, breadth metrics such as % Above 50-DMA, A/D Net, and New High–New Low (NH–NL), as well as volatility measures like ATR%. Our analysis covered multiple market cycles, including bull and bear phases, and stress events, allowing us to observe patterns across different regimes.
We focused on measuring forward returns, drawdown depths, and the duration of elevated risk periods. However, it's important to note that this research is exploratory. The sample size and regime differences mean that while we can identify tendencies, these are not foolproof formulas.
Key Patterns & Findings
Elevated CWI Readings and Drawdowns
One key observation was that clusters of elevated CWI readings often preceded larger drawdowns. For instance, when the CWI consistently showed high-risk levels over several weeks, markets tended to experience significant pullbacks. However, this wasn't always the case, highlighting the importance of using CWI as a risk indicator rather than a precise timing tool.
Breadth Divergences and Risk
We found that when breadth metrics like % Above 50-DMA weakened while indices made marginal new highs, future risk tended to rise. A hypothetical example: if the S&P 500 climbed to a new high but only 40% of its components were above their 50-DMA, this divergence often signaled vulnerability.
Volatility and Breadth Interactions
Another pattern emerged around the interaction between volatility and breadth. Certain combinations of elevated ATR% and weak breadth were more harmful than either alone. For example, a high ATR% combined with a declining A/D Net often preceded periods of heightened market stress.
Case Studies
The 2020 Market Turmoil
During the early 2020 market turmoil, the CWI entered an At-Risk state as volatility surged and breadth metrics deteriorated. Traders at the time faced anxiety and confusion as the market environment shifted rapidly. The subsequent sharp decline in indices was consistent with the signals provided by the CWI and breadth metrics.
Post-2018 Correction
In the aftermath of the 2018 correction, the market exhibited a Warning state with mixed signals from CWI and breadth. Despite a brief recovery, the environment remained fragile, and traders who heeded these signals were better prepared for the volatility that followed.
From Research to Product
Our research has directly informed the design of MarketVibe's tools. For example, the identification of clusters of elevated risk readings guided the development of CWI threshold bands, helping users visualize risk levels more intuitively. Additionally, the interaction between breadth and volatility metrics encouraged us to combine these indicators within the Market Dashboard, providing a comprehensive view of market conditions.
The Decision Edge Dashboard aggregates Climate, CWI, breadth, and leadership metrics into a coherent snapshot, balancing the need for sensitivity with the risk of overfitting. This approach ensures robust signals that prioritize clarity for the end user.
Practical Takeaways
- Treat sustained elevated CWI values as a warning about environment fragility, not a precise timing tool.
- Pay attention when breadth weakens while headline indices grind higher.
- Use multi-metric views (Climate + CWI + breadth + volatility) to frame risk posture, not to predict every move.
- Consider the interaction of volatility and breadth as a critical factor in assessing market risk.
- Monitor sector leadership shifts, as defensive sectors leading can indicate caution.
Limitations & Responsible Use
While our findings offer valuable insights, they come with limitations. Market structures change, and what worked in one era may not apply in another. Data quality and survivorship bias can affect results, and there's always a risk of overfitting.
We encourage readers to use these insights as inputs to their own tested systems, avoiding over-reliance on any single pattern or metric. Risk management and position sizing should remain central to any trading strategy.
If you want to monitor these risk conditions in real time, MarketVibe provides dashboards for CWI, breadth, and Climate at 1marketvibe.com.
Disclaimer: This article is for informational purposes only and should not be considered financial advice. Market conditions can change rapidly, and past performance is not indicative of future results.

