TL;DR
- VKOSPI measures the 30-day expected volatility priced into KOSPI 200 options—often dubbed the "KOSPI Fear Index."
- In our dataset (July 2023 – Oct 2026, 792 trading days), the annual median rose from 15.0 to 18.1, 22.0, and 55.6. In fact, 2026 didn't see a single day below 30. Applying a fixed threshold would label the whole year "dangerous."
- That's why context matters more than a single static number. Measuring VKOSPI relative to recent trends gives a much clearer picture—which is exactly how our Fear & Greed Index handles it. The data also shows no clear direction for future returns following high VKOSPI spikes.
VKOSPI is an annualized measure of expected 30-day volatility extracted from KOSPI 200 option prices. Put simply, it reflects how much market participants expect the KOSPI 200 to move over the next month based on option pricing. While there's no official "danger threshold," the meaning of any given number changes drastically over time. This post breaks things down using data as of the October 27, 2026 close (51.33). Not financial advice.
1. What is VKOSPI?
VKOSPI measures annualized 30-day expected volatility priced into KOSPI 200 options. When option prices rise, it signals that traders are bracing for bigger market moves. Higher readings reflect elevated anxiety, earning it the moniker "the Fear Index." It is the same kind of indicator as the US VIX, which is built from S&P 500 options (per SBS Biz and other reports).
A reading of 20 implies that the market is pricing in an annualized swing of roughly 20% over the next month. Keep in mind: it tells you nothing about direction (whether the market goes up or down). While it typically spikes during sharp sell-offs, severe uncertainty can push it higher even during bull runs.
2. How High Is Dangerous? The Benchmark Changed Year by Year
Here is how VKOSPI's distribution looks in our dataset:
| Year | Trading Days | Median | High | % Days ≥ 30 | % Days ≥ 50 |
|---|---|---|---|---|---|
| 2023 (from Jul) | 107 | 15.0 | 21.1 | 0% | 0% |
| 2024 | 244 | 18.1 | 45.9 | 1.2% | 0% |
| 2025 | 242 | 22.0 | 44.2 | 14.9% | 0% |
| 2026 (thru Oct 27) | 199 | 55.6 | 96.9 | 100% | 65.3% |
Between 2023 and 2025, crossing 30 was a rare event, and hitting 50 was virtually nonexistent. Fast forward to 2026: even the lowest reading (30.6 on Jan 2) broke 30, and 130 out of 199 trading days traded above 50. A reading of 50 would have been unprecedented prior to 2026, yet this year it is a normal level.
This is why rigid rules like "VKOSPI above 30 means high risk" break down whenever the market shifts into a new volatility regime. Instead of asking "What is the exact number?", a far more useful question is "How high is it relative to recent action?"
- On Oct 27, VKOSPI closed at 51.33. Across the entire 792-trading-day dataset, that places it in the top 15.7%. But looking at 2026 alone, 65% of trading days sat above this level.
- Over the recent 100 trading days (June 1 to Oct 27), the median was 61.2, with 65% of days reading higher than 51.33. It is high over the full period but mid-range within recent months.
- The highest value in our dataset is 96.94 on June 29, 2026, with readings hovering between 86 and 97 from June 22 to July 3.
3. How Our Fear & Greed Index Integrates VKOSPI
The 'Volatility & Direction' sub-metric in our KOSPI Fear & Greed Index doesn't rely on raw, absolute VKOSPI values. Instead, it ranks the current reading against recent history (a weighted percentile favoring recent data) and also considers direction. On days when the index falls, high volatility is read as fear; on days when it rises, it is read the opposite way.
Take October 22 as an example: VKOSPI came in at 49.6—a high absolute number. Yet the sub-metric score sat at a neutral 52.0. Why? Because 67% of the last 100 trading days were at or above 49.6, it was not high within the recent trend (we dove deeper into this in our Extreme Fear Breakdown post).
4. Does High Volatility Guarantee Downside?
Within the same day, there is a link. On days when the KOSPI drops heavily, VKOSPI surges. For instance, on Oct 13 (−5.5%), VKOSPI jumped +7.8 points; on Oct 15 (−7.6%, triggering a circuit breaker), it shot up +10.5 points. The daily correlation between KOSPI returns and VKOSPI changes sits at −0.31.
However, looking out 20 trading days after a high VKOSPI reading shows no clear directional bias.
| VKOSPI Range | Sample (Days) | Median 20-Day Return | Win Rate (% Positive) |
|---|---|---|---|
| Below 20 | 38 | +8.6% | 68% |
| 20–30 | 142 | +6.4% | 81% |
| 30–40 | 53 | +6.9% | 77% |
| 40–50 | 36 | +0.2% | 53% |
| 50–60 | 42 | +9.2% | 81% |
| 60–70 | 22 | +7.4% | 77% |
| 70 & Above | 62 | −3.8% | 40% |
Returns do not change steadily as the range rises. Treat this table as historical record, not a predictive rulebook. The sample size is limited to 415 trading days (price history starts Feb 2025), all 50+ readings stem from a single period in 2026, and overlapping consecutive days mean these samples aren't strictly independent.
5. What to Check When Reading VKOSPI
- Look at relative position, not just the raw number: Check where the current reading sits relative to the last 100 trading days.
- Track daily delta: Pay attention to how aggressively VKOSPI spikes on sell-off days and how quickly it mean-reverts the next day.
- Cross-reference with other indicators: Check if price momentum, market breadth, and risk appetite align. Our Fear & Greed Index brings all these metrics into a single view.
- Separate volatility from direction: VKOSPI measures magnitude, not trend.
6. Limitations & Caveats
- Data from Oct 21, 2026 onward reflects recalibrated metrics. Prior data contained mixed futures settlement prices; we now pull official spot index values (
SPOT_PRC) directly from KRX. Minor decimal point discrepancies against exchange figures may exist. - The broader dataset starts July 24, 2023, while the forward return breakdown table only covers data from February 13, 2025 onward.
- Figures for October 27 are subject to revision.
- Detailed methodology and annualization formulas are omitted here—please consult official KRX documentation for exact math.
- Not financial advice.
Frequently Asked Questions
What VKOSPI level is considered dangerous? There's no static magic number. In our dataset, readings above 50 never occurred through 2025, yet made up 65% of 2026. Because absolute levels shift across regimes, evaluating relative position against recent trends is far more reliable.
Does a high VKOSPI mean stock prices will fall? It tends to spike on sharp down days (daily correlation of −0.31), but high readings offer no consistent directional predictive power for 20-day forward returns. It indicates the size of expected moves, not direction.
How is VKOSPI different from the VIX? The VIX tracks S&P 500 options, while VKOSPI tracks KOSPI 200 options. They belong to the same volatility index family, but because they cover entirely different markets, you can't compare their raw numbers 1:1.
How does the Fear & Greed Index incorporate VKOSPI? Rather than taking raw numbers at face value, it uses rolling percentiles based on recent trends and adjusts interpretations based on whether the market closed up or down.
Bottom Line
VKOSPI shows how much volatility the market expects, but treating any single number as a fixed "danger threshold" is a mistake. Over a three-year span, baseline readings shifted dramatically from 15 to 55. Judging VKOSPI by its relative context alongside complementary market metrics provides a much safer, more accurate signal.
Track VKOSPI-driven volatility alongside 6 other core indicators on our KOSPI Fear & Greed Index page.