> For the complete documentation index, see [llms.txt](https://docs.securemetrics.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.securemetrics.io/crq-pro/core-concepts/portfolios.md).

# Portfolios

A **portfolio** is a named collection of scenarios simulated together. Where a scenario answers "what does this one risk cost us?", a portfolio answers "what do these risks cost us combined?"

When a portfolio is simulated, each member scenario's annual losses are summed within each simulated year, producing a single aggregate loss distribution. Because each year's losses are added before the statistics are computed, the portfolio correctly reflects years where several events hit at once, which is exactly where tail risk lives.

## Creating and filling a portfolio

* Click **+** in the icon rail and choose **New portfolio**, then pick member scenarios in the include picker.
* Or drag scenarios from the table onto a portfolio in the sidebar ("Drop to add").
* Or toggle portfolio membership from within the scenario editor.

A scenario can belong to any number of portfolios, so you can slice the same scenario library by business unit, by threat type, or for a board view without duplicating anything.

## Portfolio results

Select a portfolio in the sidebar to simulate it. The Results dock shows the same statistics and charts as a single scenario, plus the **Contributors** tab, which ranks member scenarios by their share of the mean loss and their share of tail losses. A scenario can be a modest contributor on average but dominate the tail; Contributors makes that visible.

## Managing portfolios

Portfolios live in the sidebar tree with their own folders. They support **Rename**, **Duplicate**, **Move**, **Delete** (to Trash), tags, and drag-reordering, the same as scenarios.