# South Korea Korea: Cycle of Leading Composite Index (BOK ECOS)

South Korea Korea: Cycle of Leading Composite Index (BOK ECOS) was 104.1 in September 2026, down 0.10% from August 2026 and up 4.4% from a year earlier.
Over the past ten years it has ranged from 98.10 (May 2020) to 104.2 (Jul 2026), averaging 100.1.

- Source agency: Bank of Korea
- Makrognosis code: `KR.ESI.M.NSA.ITEM-I16E`
- Frequency: monthly
- Units: 2020=100
- Coverage: 2016-01-01 to 2026-09-01 (129 observations)
- Page: https://makrognosis.robomacro.com/data/south-korea/korea-cycle-of-leading-composite-index-bok-ecos

## Recent data

| Period | Value |
|---|---:|
| September 2026 | 104.1 2020=100 |
| August 2026 | 104.2 2020=100 |
| July 2026 | 104.2 2020=100 |
| June 2026 | 103.8 2020=100 |
| May 2026 | 102.9 2020=100 |
| April 2026 | 102.3 2020=100 |
| March 2026 | 101.8 2020=100 |
| February 2026 | 101.2 2020=100 |
| January 2026 | 100.7 2020=100 |
| December 2025 | 100.2 2020=100 |
| November 2025 | 99.80 2020=100 |
| October 2025 | 99.60 2020=100 |
| September 2025 | 99.70 2020=100 |
| August 2025 | 99.80 2020=100 |
| July 2025 | 99.40 2020=100 |
| June 2025 | 99.00 2020=100 |
| May 2025 | 98.90 2020=100 |
| April 2025 | 98.80 2020=100 |
| March 2025 | 98.70 2020=100 |
| February 2025 | 98.50 2020=100 |
| January 2025 | 98.50 2020=100 |
| December 2024 | 98.90 2020=100 |
| November 2024 | 99.20 2020=100 |
| October 2024 | 99.20 2020=100 |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/KR.ESI.M.NSA.ITEM-I16E"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/KR.ESI.M.NSA.ITEM-I16E",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```