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Data from FMP. Forecasts by Sigmanomics Forecast Engine.
South KoreaSouth Korea CPI MoM climbed to 0.2% in August 2026
FMPMonthlyReleased September 2026
South Korea CPI MoM climbed to 0.2% in August 2026, released September 2026, up 0.4% from July's -0.2% reading. The print came in cooler than the 0.3% consensus, a softer print than forecasters anticipated. The print is running well below the 12-month average of 0.28%.
Latest Release
0.2
Actual
0.3
Consensus
-0.2
Previous
Median Absolute Error
±0.32 percentage points
across last 4 releases
Last Call
Sep 2026
Predicted: 0.15
Actual: 0.2
Error: -0.05
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 |
|---|---|---|---|---|---|
| USD/KRW | ▼ Inverse | −0.50 | FOREX | Moves against | → View |
| KOSPI | ▲ Direct | +0.45 | INDEX | Moves with | → View |
| AUD/USD | ▲ Direct | +0.35 | FOREX | Moves with | → View |
| XAU/USD | ▲ Direct | +0.30 | COMMODITIES | Moves with | → View |
| BTC/USD | ▲ Direct | +0.30 | CRYPTO | Moves with | → View |
Correlation based on 12-month rolling window. Click any symbol to view its Sigmanomics forecast page.
THE RELEASE
CPI MoM (South Korea) was reported at 0.2% in September 2026. This missed the market consensus of 0.3% by 0.1%. The reading rose from the previous value of -0.2%. Trailing 12-month context per ETL data through September 2026.
THE MODEL'S TAKE
Historically, this indicator is negatively correlated with USD/KRW (Bullish KRW). A secondary relationship exists with KOSPI, positively correlated (Bullish KR).
WHAT TO WATCH NEXT
Same-country events in the next 14 days include Consumer Confidence (Sep 22) and Business Confidence (Sep 28).
Auto-generated from current model state · Refreshes on each release · Last update September 2026.
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CPI MoM - KR
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About CPI MoM — South Korea
DEFINITION
South Korea's CPI MoM rose 0.20% in August, missing the 0.30% estimate. This marks a rebound from July's -0.20% decline, indicating a return to inflation growth but at a slower pace than earlier in the year. Market focus remains on the Bank of Korea's next moves amid this moderate inflation uptick. Updated 9/2/26
WHY THIS INDICATOR MATTERS
Inflation prints feed directly into central-bank policy expectations and real-yield calculations, and are among the most rate-sensitive releases on the calendar. 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 0.2 %, consensus 0.3 %. Prior reading (Jul 2026): -0.2 %. Before that (May 2026): 0.5 %.
WHAT'S NEXT
Sigmacast's 1-month forecast points to a materially lower reading versus the latest print, with the 3-month outlook reinforcing that direction. Both horizons are aligned bearish for this indicator, suggesting a consistent trend signal. Trend-driven dynamics are the primary headwind in the current projection. This indicator correlates most strongly with USD/KRW (Bullish KRW, r=-0.50) — a useful reference for forex-focused traders.
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EXPECTED ZONE
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