# United States Fed Securities Held Outright: Mortgage-Backed Se

United States Fed Securities Held Outright: Mortgage-Backed Se was down 9.0% year on year in 11 November 2026, compared with −9.0% in 4 November 2026.
The level stood at 1,883,522 US$ million.
Over the past ten years it has ranged from −14.7% (11 Mar 2020) to 62.5% (17 Mar 2021), averaging 2.4%.

- Source agency: Board of Governors of the Federal Reserve System (Data Download Program)
- Makrognosis code: `US.FRBMBS.W.NSA`
- Frequency: weekly
- Units: US$ million
- Coverage: 2002-12-18 to 2026-11-11 (1,248 observations)
- Page: https://makrognosis.robomacro.com/data/united-states/fed-securities-held-outright-mortgage-backed-se

## Recent data

| Period | Value | Y/Y % |
|---|---:|---:|
| 11 November 2026 | 1,883,522 US$ million | −9.0 |
| 4 November 2026 | 1,883,522 US$ million | −9.0 |
| 28 October 2026 | 1,883,522 US$ million | −9.0 |
| 21 October 2026 | 1,895,177 US$ million | −9.0 |
| 14 October 2026 | 1,898,160 US$ million | −9.0 |
| 7 October 2026 | 1,898,089 US$ million | −9.0 |
| 30 September 2026 | 1,898,089 US$ million | −9.0 |
| 23 September 2026 | 1,910,409 US$ million | −9.0 |
| 16 September 2026 | 1,913,523 US$ million | −9.0 |
| 9 September 2026 | 1,913,585 US$ million | −9.0 |
| 2 September 2026 | 1,913,585 US$ million | −9.0 |
| 26 August 2026 | 1,913,585 US$ million | −9.0 |
| 19 August 2026 | 1,930,728 US$ million | −8.8 |
| 12 August 2026 | 1,930,855 US$ million | −8.9 |
| 5 August 2026 | 1,930,855 US$ million | −9.0 |
| 29 July 2026 | 1,930,855 US$ million | −9.0 |
| 22 July 2026 | 1,944,788 US$ million | −8.9 |
| 15 July 2026 | 1,948,337 US$ million | −8.9 |
| 8 July 2026 | 1,948,398 US$ million | −8.9 |
| 1 July 2026 | 1,948,398 US$ million | −8.9 |
| 24 June 2026 | 1,961,590 US$ million | −8.3 |
| 17 June 2026 | 1,964,798 US$ million | −8.9 |
| 10 June 2026 | 1,964,786 US$ million | −8.9 |
| 3 June 2026 | 1,964,786 US$ million | −8.9 |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/US.FRBMBS.W.NSA"

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