# Chile IMACEC monthly economic activity index (BCCh SI3)

Chile IMACEC monthly economic activity index (BCCh SI3) was 110.0 in September 2026, up 0.9% from August 2026 and up 0.2% from a year earlier.
Over the past ten years it has ranged from 85.01 (Jul 2020) to 129.2 (Dec 2025), averaging 104.4.
The next update is expected on 4 December 2026.

- Source agency: Banco Central de Chile
- Makrognosis code: `CL.ECOACT.M.NSA`
- Frequency: monthly
- Units: index
- Coverage: 1996-01-01 to 2026-09-01 (369 observations)
- Page: https://makrognosis.robomacro.com/data/chile/imacec-monthly-economic-activity-index-bcch-si3

## Recent data

| Period | Value |
|---|---:|
| September 2026 | 110.0 |
| August 2026 | 109.1 |
| July 2026 | 107.0 |
| June 2026 | 110.6 |
| May 2026 | 112.1 |
| April 2026 | 114.4 |
| March 2026 | 120.4 |
| February 2026 | 104.4 |
| January 2026 | 111.2 |
| December 2025 | 129.2 |
| November 2025 | 118.4 |
| October 2025 | 115.0 |
| September 2025 | 109.8 |
| August 2025 | 110.2 |
| July 2025 | 108.6 |
| June 2025 | 108.4 |
| May 2025 | 113.7 |
| April 2025 | 115.6 |
| March 2025 | 120.3 |
| February 2025 | 104.6 |
| January 2025 | 112.2 |
| December 2024 | 127.6 |
| November 2024 | 116.8 |
| October 2024 | 112.7 |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/CL.ECOACT.M.NSA"

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