What is the KOSPI forecast?

The KOSPI (^KS11) is forecasted using our adaptive model ensemble that generates 7-day, 14-day, and 28-day predictions with confidence intervals and expected zone analysis. View the latest KOSPI forecast on this page.

What is the KOSPI expected price range?

The KOSPI expected move is estimated as a symmetric range around the current level across 7-day, 14-day, and 28-day horizons, derived from recent realized volatility. These are magnitude estimates, not directional predictions — see the expected-move ranges on this page.

How accurate are KOSPI predictions?

Sigmanomics tracks all forecast accuracy transparently. View median absolute error and zone-containment metrics for KOSPI and all other instruments on our Performance page at sigmanomics.com/performance.

How much could ^KS11 move?

^KS11 has an expected move of roughly ±3.1% over 7 days, ±4.8% over 14 days, ±7.4% over 28 days — symmetric ranges around the current price derived from recent realized volatility. These are magnitude estimates, not directional predictions. ^KS11's recent path efficiency (ER) is 0.15 over the trailing 14 sessions, indicating a choppy, range-bound path.

KOSPI (^KS11) Index Forecast — Price Prediction & Analysis

Primary economy: South Korea economic indicators

Sam Bourgi, Analyst

Sam Bourgi is an analyst, writer and financial market commentator featured in and cited by U.S. Congress, Department of Justice, Chicago Board Options Exchange, Barron's and Forbes. He covers stocks, bonds, mutual funds, ETFs, forex, Bitcoin, cryptocurrency, real estate and macroeconomics. He has written over 25,000 articles and over 40 whitepapers and e-books.

KOSPI (^KS11) Index Forecast — Price Prediction & Analysis

Sigmacast expected range · 7–28-day calibrated zone

Forecast batch: 9/11/26

^KS11's band carries a graded record, but its options premium is not being graded right now. Sigmacast's calibrated band is sized from realized volatility and graded against every terminal close, with its containment rate audited at each horizon over the trailing 30 days. Horizon grades return when the premium ladder is gradeable again — current status is below.

short-term trend: choppy · drifted up7d

7 Day^prov

± 3.1%

expected move

path efficiency (ER)0.31

0 choppy/rangetrend 1.0

7-day window · fewer obs, noisier

60/80/95 · ±3.1/4.7/7.6%

medium-term trend: choppy · drifted up14d

14 Day^prov

± 4.8%

expected move

path efficiency (ER)0.15

0 choppy/rangetrend 1.0

60/80/95 · ±4.8/7.3/11.8%

long-term trend: choppy · drifted up28d

28 Day^prov

± 7.4%

expected move

path efficiency (ER)0.12

0 choppy/rangetrend 1.0

60/80/95 · ±7.4/11.3/18.1%

Nested 60 / 80 / 95 calibrated expected-range · centered on current price (gold tick)

Macro correlations · context (not confirmation)

8 correlated indicators

Observed historical correlations, not forward signals.

Positively correlated: 5-Year KTB Auction (r=+0.61), Imports YoY (r=+0.60), Industrial Production MoM (r=+0.46), Balance of Trade - (r=+0.46), Nikkei Manufacturing PMI (r=+0.45), PPI MoM (r=+0.45), PPI YoY (r=+0.45)

Inversely correlated: Inflation Rate YoY (r=-0.53)

^KS11

indices

Current Price

September 12, 2026

Market Closed

6909.91

Actual

August 12, 2026

+5.22%

6567.10

1 Month Ago

September 12, 2025

+69.21%

4083.65

1 Year Ago

Upcoming Forecasts

View All Forecasts →

^KS11 · INDICES

14-DAY FORECAST · 9/26/26

EXPECTED MOVE± 4.8%range 6578.86 – 7240.96 · 14D

Upper / lower bound7240.96 / 6578.86

Outside-range leveloutside 6578.86 – 7240.96price exits the expected band (either side)

Containment~60% (provisional)band hits its stated rate (backtest)

Term structure · expected move by horizon

Containment = how often the band held (backtest) — magnitude only, not a directional record.

Outcome legend

Magnitude · primary

How big was the move vs the forecast band?

+12.4%band-relative outcome efficiency

—efficiency not yet computed for this trade

Zone

Did price stay inside the expected band?

CONTAINEDentry price inside the expected band

BREACHED HIGHentry above the band's upper bound

BREACHED LOWentry below the band's lower bound

· · · Explore all 9 models across all timeframes on Sigmanomics · · ·

Signal Tracker Record / PerformancePast Performance →

Forecasts generated by Sigmanomics engine. Not financial advice.

SETUP

The KOSPI (^KS11) is a market index covered by the Sigmanomics analytics platform. The ^KS11 index closed at 6,910.90 on September 11, 2026, reflecting a decline of 2.00% from the previous close of 7,051.61.

WHAT'S DRIVING IT

Over the past 30 days, the index has experienced a modest uptrend with a rally of 4.46%, ranging between 5,629.76 and 7,216.62. The price currently trades above its 20-day moving average of 6,822.88. The 14-day RSI stands at 52.3, in neutral territory, indicating balanced momentum.

THE RISK

Over the same 30-day window, daily-return volatility was 2.86%, reflecting typical price variability for this index. Across the past 52 weeks, the index has traded between 3,833.35 and 9,385.59, with the current price near the midrange of that range.

WHAT WE'RE WATCHING NEXT

Daily-return volatility of 2.86% runs elevated for this index, so price ranges are likely to stay wide — watch how price behaves around its recent range rather than treating any single level as fixed. ^KS11 is currently trading 1.29% above its 20-day moving average and sitting in the middle of its 52-week range. Its 14-day RSI reads 52.3, currently in neutral territory.

Auto-generated from Sigmanomics market data. Last update Sep 2026.

Sigmacast forecasts span six horizons — 30-minute, 1-hour, 2-hour, 4-hour, 12-hour, and daily — refreshed continuously as new bars arrive.

Primary economy: South Korea economic indicators

Sam Bourgi, Analyst

Sigmacast expected range · 7–28-day calibrated zone

Forecast batch: 9/11/26

short-term trend: choppy · drifted up7d

7 Day^prov

± 3.1%

expected move

path efficiency (ER)0.31

0 choppy/rangetrend 1.0

7-day window · fewer obs, noisier

60/80/95 · ±3.1/4.7/7.6%

medium-term trend: choppy · drifted up14d

14 Day^prov

± 4.8%

expected move

path efficiency (ER)0.15

0 choppy/rangetrend 1.0

60/80/95 · ±4.8/7.3/11.8%

long-term trend: choppy · drifted up28d

28 Day^prov

± 7.4%

expected move

path efficiency (ER)0.12

0 choppy/rangetrend 1.0

60/80/95 · ±7.4/11.3/18.1%

Nested 60 / 80 / 95 calibrated expected-range · centered on current price (gold tick)

Macro correlations · context (not confirmation)

8 correlated indicators

Observed historical correlations, not forward signals.

Inversely correlated: Inflation Rate YoY (r=-0.53)

^KS11

indices

Current Price

September 12, 2026

Market Closed

6909.91

Actual

August 12, 2026

+5.22%

6567.10

1 Month Ago

September 12, 2025

+69.21%

4083.65

1 Year Ago

Upcoming Forecasts

View All Forecasts →

^KS11 · INDICES

14-DAY FORECAST · 9/26/26

EXPECTED MOVE± 4.8%range 6578.86 – 7240.96 · 14D

Upper / lower bound7240.96 / 6578.86

Outside-range leveloutside 6578.86 – 7240.96price exits the expected band (either side)

Containment~60% (provisional)band hits its stated rate (backtest)

Term structure · expected move by horizon

Containment = how often the band held (backtest) — magnitude only, not a directional record.

Outcome legend

Magnitude · primary

How big was the move vs the forecast band?

+12.4%band-relative outcome efficiency

—efficiency not yet computed for this trade

Zone

Did price stay inside the expected band?

CONTAINEDentry price inside the expected band

BREACHED HIGHentry above the band's upper bound

BREACHED LOWentry below the band's lower bound

· · · Explore all 9 models across all timeframes on Sigmanomics · · ·

Signal Tracker Record / PerformancePast Performance →

Forecasts generated by Sigmanomics engine. Not financial advice.

SETUP

WHAT'S DRIVING IT

THE RISK

WHAT WE'RE WATCHING NEXT

Auto-generated from Sigmanomics market data. Last update Sep 2026.

Sigmacast forecasts span six horizons — 30-minute, 1-hour, 2-hour, 4-hour, 12-hour, and daily — refreshed continuously as new bars arrive.

KOSPI (^KS11) Index Forecast — Price Prediction & Analysis

Sam Bourgi, Analyst

KOSPI (^KS11) Index Forecast — Price Prediction & Analysis

^KS11

Current Price

Upcoming Forecasts

SETUP

WHAT'S DRIVING IT

THE RISK

WHAT WE'RE WATCHING NEXT

Related Pairs

Correlated Economic Indicators

Sam Bourgi, Analyst

^KS11

Current Price

Upcoming Forecasts

SETUP

WHAT'S DRIVING IT

THE RISK

WHAT WE'RE WATCHING NEXT

Related Pairs

Correlated Economic Indicators

KOSPI (^KS11) Index Forecast — Price Prediction & Analysis

Sam Bourgi, Analyst

KOSPI (^KS11) Index Forecast — Price Prediction & Analysis

^KS11

Current Price

Upcoming Forecasts

→ SETUP

→ WHAT'S DRIVING IT

→ THE RISK

→ WHAT WE'RE WATCHING NEXT

Related Pairs

Correlated Economic Indicators

Sam Bourgi, Analyst

^KS11

Current Price

Upcoming Forecasts

→ SETUP

→ WHAT'S DRIVING IT

→ THE RISK

→ WHAT WE'RE WATCHING NEXT

Related Pairs

Correlated Economic Indicators

SETUP

WHAT'S DRIVING IT

THE RISK

WHAT WE'RE WATCHING NEXT

SETUP

WHAT'S DRIVING IT

THE RISK

WHAT WE'RE WATCHING NEXT