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Data from FMP. Forecasts by Sigmanomics Forecast Engine.
South KoreaSouth Korea Producer Price Index YoY climbed to 7.9% in August 2026
FMPMonthlyReleased September 2026
South Korea Producer Price Index YoY climbed to 7.9% in August 2026, released September 2026, up 0.2% from July's 7.7% reading. The reading matched the 8.1% consensus. The print is running well above the 12-month average of 3.26%. The reading is in the 92nd percentile of the trailing 24-month range.
Latest Release
7.9
Actual
8.1
Consensus
7.7
Previous
Median Absolute Error
±0.23 percentage points
across last 12 releases
Last Call
Sep 2026
Predicted: 7.7
Actual: 7.9
Error: -0.2
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 |
|---|---|---|---|---|---|
| Nikkei 225 | ▲ Direct | +0.50 | INDEX | Moves with | → View |
| S&P 500 | ▲ Direct | +0.47 | INDEX | Moves with | → View |
| Hang Seng | ▼ Inverse | −0.34 | INDEX | Moves against | → View |
| KOSPI | ▲ Direct | +0.28 | INDEX | Moves with | → View |
| USD/KRW | ▼ Inverse | −0.27 | FOREX | Moves against | → View |
Correlation based on 12-month rolling window. Click any symbol to view its Sigmanomics forecast page.
THE RELEASE
Producer Price Index YoY (South Korea) was reported at 7.9% in September 2026. This missed the market consensus of 8.1% by 0.2%. The reading rose from the previous value of 7.7%. Trailing 12-month context per ETL data through September 2026. Over the past 12 months, the indicator has averaged 4.18%, ranging from 1.2% to 8.5% across 10 releases.
WHY IT MATTERS
The trailing three releases averaged 8.03%, up from the prior three at 3.73%. Volatility over the past year (σ 2.95%) is higher than the prior year (σ 0.49%).
THE MODEL'S TAKE
Historically, this indicator is positively correlated with Nikkei 225 (Bullish Nikkei 225). A secondary relationship exists with S&P 500, positively correlated (Bullish S&P 500). Over the last 12 releases, the Sigmacast model's median absolute error is 0.23%.
WHAT TO WATCH NEXT
The next release is scheduled for October 20, 2026. Same-country events in the next 14 days include Business Confidence (Sep 28) and Exports YoY (Oct 1).
Auto-generated from current model state · Refreshes on each release · Last update September 2026.
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Producer Price Index YoY - KR
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About Producer Price Index YoY — South Korea
DEFINITION
South Korea's Producer Price Index YoY rose to 7.9% in September, missing the 8.1% estimate but up from August's 7.7%. The increase from 7.7% to 7.9% signals a continued upward trend in producer inflation. Market focus will remain on upcoming inflation data and central bank policy amid persistent price pressures. Updated 9/17/26
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 (Aug 2026): actual 7.9 %, consensus 8.1 %. Prior reading (Jul 2026): 7.7 %. Before that (May 2026): 8.5 %.
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 Nikkei 225 (Bullish Nikkei 225, r=0.50) — a useful reference for index-focused traders.
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Economic Calendar - KR Events
| Tuesday, September 22, 2026 | Actual | Previous | Consensus | Sigmanomics Rolling-Surprise Forecast | Impact | ||
|---|---|---|---|---|---|---|---|
| 21:00 | KR | Consumer Confidence | 106.6 | 104.5 | 104.8 | 105.70 | Medium |