# `port_decomp_example.xlsx`

Portfolio-decomposition example: multi-asset ETF total returns (SPY, EFA, EEM, PSP, QAI, HYG, DBC) with a target portfolio return series.

| | |
|---|---|
| **Source** | **Derived** — Derived from other course datasets |
| **Years** | 2010-2025 |
| **Frequency** | M |
| **Vintage** | Rolling — refreshed by re-running the builder |
| **Provenance** | Example workbook derived from the multi-asset ETF pull (QAI flavor) plus an example portfolio-returns tab; no standalone builder. |

## Used in this book

- [Replicating Regressions](../exercises/Replicating%20Regressions.ipynb) — Linear Factor Decomposition (Exercises)

## Files in this book

- `port_decomp_example.xlsx`