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Data from FMP. Forecasts by Sigmanomics Forecast Engine.
JapanJapan 30-Year JGB Auction climbed to 4.1% in August 2026
FMPMonthlyReleased September 2026
Japan 30-Year JGB Auction climbed to 4.1% in August 2026, released September 2026, up 0.16% from July's 3.94% reading.
Latest Release
4.100000
Actual
—
Consensus
3.937000
Previous
Sigmacast Track Record
Sigmacast track record will appear here once this indicator has been released 3+ times since Sigmanomics began tracking.
Sigmacast Σ-direction model: consensus + ½ × mean(surprise, trailing 90d).
CORRELATED SYMBOLS— markets that historically move with this indicator
| Symbol | Direction | Correlation | Asset Class | Co-movement | Action |
|---|---|---|---|---|---|
| S&P 500 | ▲ Direct | +0.64 | INDEX | Moves with | → View |
| GBP/JPY | ▼ Inverse | −0.48 | FOREX | Moves against | → View |
| EUR/JPY | ▼ Inverse | −0.48 | FOREX | Moves against | → View |
| AUD/JPY | ▼ Inverse | −0.48 | FOREX | Moves against | → View |
| USD/JPY | ▼ Inverse | −0.47 | FOREX | Moves against | → View |
Correlation based on 12-month rolling window. Click any symbol to view its Sigmanomics forecast page.
THE RELEASE
30-Year JGB Auction (Japan) was reported at 4.1% in September 2026. The reading rose from the previous value of 3.94%. Trailing 12-month context per ETL data through September 2026. Over the past 12 months, the indicator has averaged 3.6%, ranging from 3.17% to 4.1% across 10 releases.
WHY IT MATTERS
The indicator has been trending upward over the last three releases. The trailing three releases averaged 3.97%, up from the prior three at 3.62%. Volatility over the past year (σ 0.3%) is lower than the prior year (σ 0.37%). In September readings over the past 3 years, 30-Year JGB Auction has averaged 3.14%.
THE MODEL'S TAKE
Historically, this indicator is positively correlated with S&P 500 (Bullish S&P 500). A secondary relationship exists with GBP/JPY, negatively correlated (Bearish GBP).
WHAT TO WATCH NEXT
The next release is scheduled for October 8, 2026. Same-country events in the next 14 days include Exports YoY (Sep 15) and Balance of Trade (Sep 15).
Auto-generated from current model state · Refreshes on each release · Last update September 2026.
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30-Year JGB Auction - JP
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About 30-Year JGB Auction — Japan
DEFINITION
The 30-Year JGB Auction is a financial indicator that measures the demand and interest rates for 30-year Japanese Government Bonds (JGBs). This auction is conducted by the Japanese Ministry of Finance and provides valuable insights into the country's long-term borrowing costs and overall economic stability. Investors and analysts closely monitor the results of the auction as it can impact the bond market and serve as an indicator of the country's fiscal health.
WHY THIS INDICATOR MATTERS
This release contributes to the broader macro picture used by cross-asset investors for positioning and risk management. The release is more useful as part of a longer-run signal than as a single-print catalyst. Released monthly.
WHAT CHANGED THIS MONTH
Latest reading (Sep 2026): actual 4.1 %. Prior reading (Aug 2026): 3.937 %. Before that (Jun 2026): 3.86 %.
WHAT'S NEXT
Sigmacast's 1-month forecast points to a similar reading versus the latest print, with the 3-month outlook reinforcing that direction. Both horizons are aligned bullish for this indicator, suggesting a consistent trend signal. Trend-driven dynamics are the primary tailwind in the current projection. This indicator correlates most strongly with S&P 500 (Bullish S&P 500, r=0.64) — a useful reference for index-focused traders.
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Economic Calendar - JP Events
| Monday, September 14, 2026 | Actual | Previous | Consensus | Sigmanomics Rolling-Surprise Forecast | Impact | ||
|---|---|---|---|---|---|---|---|
| 04:30 | JP | Capacity Utilization | 0.5 | 4.1 | -1.3 | -0.40 | Low |
| 04:30 | JP | Industrial Production MoM | -0.2 | 1.9 | 0.1 | -0.05 | Low |
| 04:30 | JP | Industrial Production YoY | 3.9 | 4.9 | 4.1 | 4.00 | Low |
| Tuesday, September 15, 2026 | Actual | Previous | Consensus | Sigmanomics Rolling-Surprise Forecast | Impact | ||
| 04:30 | JP | Tertiary Industry Index MoM | -0.2 | 0.3 | 0.30 | Low | |
| 23:50 | JP | Exports YoY | 23.2 | 18.2 | 18.60 | Medium | |
| 23:50 | JP | Balance of Trade | -634.5 | -1052.6 | -959.65 | High | |
| 23:50 | JP | Imports YoY | 27.8 | 26.3 | 26.15 | Low | |
| 23:50 | JP | Machinery Orders MoM | 9.7 | -2.8 | 1.10 | Medium | |
| 23:50 | JP | Machinery Orders YoY | 16.9 | 15.3 | 18.45 | Medium | |
| 23:50 | JP | Adjusted Trade Balance | -0.69 | -0.98 | -0.92 | Medium | |