# Portfolio

URL: /business/nouns/portfolio · Id: `noun:portfolio`

> A Portfolio is a managed set a Thing allocates attention and money across, by membership: a Studio’s Startups, a Startup’s child Startups, or its Products.

A Portfolio is a managed set of [Startups](/business/nouns/startup) or [Products](/business/nouns/product) that a [Studio](/business/nouns/studio), [Company](/business/nouns/company), or Startup allocates attention and money across.

## Properties
| Property | Type | Required | Description |
| --- | --- | --- | --- |
| `membership` | `string` | No | How each member belongs: `held`, `owned`, `contracted`, or `made`. |

<details>
<summary>Inherited from [Collection](/business/nouns/collection): 1 property</summary>

| Property | Type | Required | Description |
| --- | --- | --- | --- |
| `query` | `json` | No | The saved query that defines a dynamic Collection. |

</details>

<details>
<summary>Inherited from [Thing](/business/nouns/thing): 4 properties</summary>

| Property | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | `string` | Yes | The stable identifier, which never changes. |
| `type` | list of [Noun](/business/nouns/noun) | Yes | The Nouns this Thing is an instance of. |
| `state` | `string` | No | The current state in its lifecycle. |
| `outside` | `json` | No | The ids this Thing has in outside tools, one per Integration, so a re-run matches instead of duplicating. |

</details>

## Object
```json
{
  "$id": "https://api.sb/tutorloop.com/portfolios/portfolio_1",
  "$type": "Portfolio",
  "id": "Example id",
  "type": [
    "noun_1"
  ],
  "state": "Example state",
  "outside": {},
  "query": {},
  "membership": "held"
}
```

## Relationships
- <a id="rel-cohorts"></a>A Portfolio **has** many [Cohorts](/business/nouns/cohort): a [Cohort](/business/nouns/cohort) selects its [Startups](/business/nouns/startup) from one Portfolio by a saved query. `cohorts`, inverse [`drawnFrom`](/business/nouns/cohort#rel-drawn-from).
- <a id="rel-includes-startup"></a>A Portfolio **includes startup** many [Startups](/business/nouns/startup): a [Startup](/business/nouns/startup) can sit in many Portfolios, each with its own membership: held, owned, contracted or made. `includesStartup`, inverse [`portfolios`](/business/nouns/startup#rel-portfolios).
- <a id="rel-managed-by"></a>A Portfolio **is managed by** one [Studio](/business/nouns/studio): a [Studio](/business/nouns/studio) allocates attention and money across the members of each Portfolio it manages. `managedBy`, inverse [`manages`](/business/nouns/studio#rel-manages).
- <a id="rel-plays"></a>A Portfolio **has** many [Plays](/business/nouns/play): a [Studio](/business/nouns/studio) rolls a [Play](/business/nouns/play) out across a Portfolio one cohort wave at a time, measured as an [Experiment](/business/nouns/experiment). `plays`, inverse [`targets`](/business/nouns/play#rel-targets).
- <a id="rel-risks"></a>A Portfolio **has** many [Risks](/business/nouns/risk): [Exposure](/business/nouns/exposure) shared across sibling [Startups](/business/nouns/startup), such as one upstream every sibling relies on. `risks`, inverse [`portfolio`](/business/nouns/risk#rel-portfolio).

## Verbs
| Verb | Description | Subject | Event | Class |
| --- | --- | --- | --- | --- |
| [Portfolio.brake](/business/nouns/portfolio/brake) | Brake stops one class of effects, such as sends, spend, publishes, or price changes, across a Portfolio query until it expires or is lifted. | [Worker](/business/nouns/worker) | [`Portfolio.braked`](/business/events/Portfolio.braked) | None. |
| [Portfolio.lift](/business/nouns/portfolio/lift) | Lift ends a brake before it expires, and the Actions it held resume their review and delay windows. | [Worker](/business/nouns/worker) | [`Portfolio.lifted`](/business/events/Portfolio.lifted) | None. |
| <a id="create"></a>[Portfolio.create](/business/nouns/portfolio/create) | Creates a Portfolio. Inherited from [Noun](/business/nouns/noun). | None. | `Portfolio.created` | Two-way: `try`, `send`, `do` |
| <a id="get"></a>[Portfolio.get](/business/nouns/portfolio/get) | Returns one Portfolio by id. Inherited from [Noun](/business/nouns/noun). | None. | None. | Read: `try`, `do` |
| <a id="list"></a>[Portfolio.list](/business/nouns/portfolio/list) | Returns Portfolios, newest first, one page at a time. Inherited from [Noun](/business/nouns/noun). | None. | None. | Read: `try`, `do` |
| <a id="update"></a>[Portfolio.update](/business/nouns/portfolio/update) | Changes the given properties of a Portfolio. Inherited from [Noun](/business/nouns/noun). | None. | `Portfolio.updated` | Two-way: `try`, `send`, `do` |
| <a id="delete"></a>[Portfolio.delete](/business/nouns/portfolio/delete) | Deletes a Portfolio; its history is kept. Inherited from [Noun](/business/nouns/noun). | None. | `Portfolio.deleted` | One-way: `send`, `do` |

## Permissions
Which Access level may call each Verb. One-way Verbs wait their delay window.

| Operation | `owner` | `admin` | `member` | `viewer` |
| --- | --- | --- | --- | --- |
| `Portfolio.create` | Yes | Yes | Yes | No |
| `Portfolio.get` | Yes | Yes | Yes | Yes |
| `Portfolio.list` | Yes | Yes | Yes | Yes |
| `Portfolio.update` | Yes | Yes | Yes | No |
| `Portfolio.delete` | Yes | Yes | Yes | No |
| `Portfolio.brake` | Yes | Yes | Yes | No |
| `Portfolio.lift` | Yes | Yes | Yes | No |

## Call it

**Ask**

```text
Brake the latest portfolio.
```

**API**

```bash
curl -X POST https://api.sb/ledgerlark.com/portfolios/portfolio_1/brake \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"effects":["send"],"reason":"Example reason","until":"2026-10-22T12:00:00Z"}'
```

```json
{
  "api": "https://api.sb/ledgerlark.com",
  "brake": {
    "$id": "https://api.sb/ledgerlark.com/settings/setting_1",
    "$type": "Setting",
    "key": "Example key",
    "value": {}
  },
  "portfolio": {
    "$id": "https://api.sb/ledgerlark.com/portfolios/portfolio_1",
    "$type": "Portfolio",
    "id": "Example id",
    "type": [
      "noun_1"
    ]
  },
  "action": {
    "$id": "https://api.sb/ledgerlark.com/actions/action_1",
    "operation": "Portfolio.brake",
    "status": "done"
  },
  "links": {
    "self": "https://api.sb/ledgerlark.com/actions/action_1"
  }
}
```

**SDK**

```ts
import { $ } from 'startup-builder'

const { brake, portfolio } = await $.Portfolio.brake({ portfolio: 'portfolio_1', effects: ['send'], reason: 'Example reason', until: '2026-10-22T12:00:00Z' })
```

**CLI**

```bash
npx startup-builder do Portfolio.brake --json '{"portfolio":"portfolio_1","effects":["send"],"reason":"Example reason","until":"2026-10-22T12:00:00Z"}'
```

**MCP**

```json
{
  "name": "do",
  "arguments": {
    "code": "return await $.Portfolio.brake({ portfolio: 'portfolio_1', effects: ['send'], reason: 'Example reason', until: '2026-10-22T12:00:00Z' })"
  }
}
```

## Example
A Studio's Portfolio holds 40 Startups. It moves its weekly budget toward the 6 that are default alive and growing.