Weekly Observatory Report — 2026-10-16
Japan small caps, checked every night — week of 2026-10-16.
Every listed Japanese equity, checked nightly. As of the 2026-10-16 close, 6 names are on the watchlist (pullbacks our rules classify as healthy) and 125 carry warning flags.
The full report — market context, the watchlist with tiers, and the scorecard of the prior issue's entries — is free to read during our open period.
Market context
| Level | Week change | |
|---|---|---|
| TOPIX | 4,066.0 | -0.9% w/w |
| Growth 250 (small-cap growth) | 779.2 | -3.4% w/w |
| USD/JPY (as of 2026-10-15) | ¥157.98 | -0.30 w/w |
| JGB 10-year yield (as of 2026-10-15) | 2.95% | -14bp w/w |
| VIX (as of 2026-10-14) | 16.9 | +1.79 w/w |
Reference data only — TOPIX/Growth250 from exchange data, USD/JPY from ECB reference rates (FRED fallback), JGB from Ministry of Finance, VIX from FRED. We do not publish forecasts.
This week's observatory
Watchlist: 6 (1 core-size / 5 small & emerging). Most represented sectors: Services (1), Chemicals (1), Precision Instruments (1). Warning flags: 125.
Watchlist notables (supply-demand tier A/B)
| Ticker | Name | Sector | Supply-demand tier | Business quality | Balance-sheet safety | Valuation |
|---|---|---|---|---|---|---|
| 247A | Ai ROBOTICS INC. | Chemicals | B | High | Medium | Cheap |
| 285A | Kioxia Holdings Corporation | Electric Appliances | B | High | High | Neutral |
Tier reflects margin-trading supply and demand (A = light, B = neutral); it is not a ranking. Labels are systematic, not ratings. These are observations, not recommendations.
Scorecard — how last week's entries actually did
| Ticker | Name | Since entry | Status |
|---|---|---|---|
| 350A | DIGITAL GRID Corporation | -7.9% | Did not hold |
| 3659 | NEXON Co.,Ltd. | +6.5% | Rebound confirmed |
| 5889 | Japan Eyewear Holdings Co.,Ltd. | +1.9% | Still monitoring |
| 3712 | Information Planning CO.,LTD. | +0.8% | Still monitoring |
Return from the prior issue's as-of close to this issue's. Every issue includes this scorecard — wins and losses, timestamped. Nothing is deleted retroactively.
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Tsukiyo Research provides data and analysis for informational purposes only. Nothing here is investment advice or a recommendation to buy or sell any security. We are not a registered investment advisor in any jurisdiction. Past performance does not guarantee future results.
Data as-of 2026-10-16 close | Rules: crash:v1 / market_context:v1 | Body SHA-256: 64a2402cd42d8888 (hash of the content above this line)