What is the Japan Valuation?
This gauge measures the Japan market — proxied by the Nikkei 225 — relative to its own long-term trend, showing at a glance whether Japan equities are cheap, fairly valued or stretched. Japan is a major market shaped by the Bank of Japan's vast interventions and its historic 1989 bubble. Rather than compare across countries (which is distorted by different sector mixes and accounting standards), this indicator compares the market to its own five-year moving average, so a reading of 100 means the market sits exactly on trend, a reading above 120 means it trades more than 20% above its recent norm, and a reading below 85 signals unusual cheapness. This trend-relative approach is transparent and honest: it does not require the total-market-capitalisation figures that a true Buffett Indicator needs and that are not freely available for most markets. Because it is anchored to each market's own history, it is especially useful for spotting when a market has run far ahead of, or fallen well behind, its typical level.
Formula & Methodology
Created by Trend-deviation valuation model.
Historical Performance & Limitations
A trend-relative gauge cannot say whether the trend itself is over- or under-valued in absolute terms — only whether the market is stretched versus its own recent history. Structural regime changes (a lasting re-rating) can keep readings elevated for years. It is a context tool, not a timing signal.
Status Classification
| Level | Meaning |
|---|---|
| Strong Undervaluation | Market trading significantly below historical average |
| Fair Value | Market aligned with historical valuation metrics |
| Moderate Overvaluation | Market elevated above historical norms |
| Severely Overvalued | Extreme historical deviation; high downside risk |