# Twiggs Money Flow

`D07-F05-A21` · Technical Indicators → Volume Indicators · archetype `series-transform` · difficulty 2/5 · verification **verified**

Full page: https://docs.thefintechbuilder.com/technical-indicators/volume-indicators/twiggs-money-flow/
Agent skill: `npx skills add IslamBaraka90/Fintech-Algorithms-Library` — https://docs.thefintechbuilder.com/guides/agent-skill/

## Install and import

```bash
npm install fintech-algorithms
```

```ts
import { twiggsMoneyFlow } from "fintech-algorithms/technical-indicators/volume-indicators/twiggs-money-flow";
```

## Signature

```ts
twiggsMoneyFlow(input)
```

Accumulates volume weighted by where the close sits inside a range extended to include the prior close, then divides the EMA of that flow by the EMA of volume.

## Parameters

| Name | Type | Required | Notes |
| --- | --- | --- | --- |
| `input` | `TopicInput` | yes | `bars` needs `timestamp`, `high`, `low`, `close` and `volume`. From `parameters` this topic reads `period` (default 14, an integer of at least 2), used for both EMAs. |

## Returns

`TopicResult`

`series` holds a single `value`, the flow EMA divided by the volume EMA, and `latest` its last element. The first bar contributes a flow of 0 because the extended range needs a prior close, and a bar whose extended top equals its extended bottom also contributes 0. A bar whose volume EMA is 0 yields null. The warm-up is the EMA seed.

## Warm-up

The first ``period` - 1 bars (13 with the default 14)` positions are `null`. `ready_at` is 13 on default parameters. The result is a ratio, not a percentage, so it sits roughly between minus one and one.

## Errors

- When `period` is not an integer of at least 2 — throws Error
- When a bar carries a negative `volume` — throws Error
- When a `high` is below the bar's `open`, `low` or `close` — throws Error

## Complexity

Time `O(n)`, space `O(n)`.

## Worked example

Captured by running this function on the input its own test provides. Real output of real code — but not asserted against a published figure.

### Input

`input`:

```json
{
  "bars": [
    {
      "timestamp": "2024-01-02",
      "basis": "synthetic-unadjusted",
      "open": 100,
      "high": 101.45,
      "low": 98.695,
      "close": 100,
      "volume": 750000,
      "benchmark": 200
    },
    {
      "timestamp": "2024-01-03",
      "basis": "synthetic-unadjusted",
      "open": 101.49111452,
      "high": 103.38381693,
      "low": 100.05480022,
      "close": 101.78791214,
      "volume": 795117,
      "benchmark": 200.56326135
    },
    {
      "timestamp": "2024-01-04",
      "basis": "synthetic-unadjusted",
      "open": 102.45519048,
      "high": 104.6701838,
      "low": 100.91147007,
      "close": 102.9549389,
      "volume": 840234,
      "benchmark": 201.11020913
    }
  ],
  "parameters": {}
}
```

### Call

```ts
twiggsMoneyFlow(input)
```

### Returns

object with 9 fields: topic_id, title, state, ready, ready_at, series, latest, parameters, …

```json
{
  "topic_id": "D07-F05-A21",
  "title": "Twiggs Money Flow",
  "state": "calculated",
  "ready": true,
  "ready_at": 13,
  "series": {
    "value": [null, null, null, null, null, null]
  },
  "latest": {
    "value": -0.038641839414592004
  },
  "parameters": {},
  "diagnostics": {
    "causal": true,
    "input_count": 96
  }
}
```

## Verification and provenance

Tier: **verified** (via E).

The worked example below is the figure published in this algorithm's article, replayed and asserted by the test suite on every build. The arithmetic cannot drift without the build failing.

Both tiers guarantee the signature. Full explanation: https://docs.thefintechbuilder.com/guides/verification/

Generated from the docs.json payload shipped inside fintech-algorithms@0.13.0.
The signature and parameter list are checked against the compiled implementation at build time,
so a description that contradicts the code fails the build rather than reaching this file.

## Links

- Article (how it works, step by step): https://thefintechbuilder.com/technical-indicators/volume-indicators/twiggs-money-flow/
- Implementation source: https://github.com/IslamBaraka90/Fintech-Algorithms-Library/blob/main/src/technical-indicators/volume-indicators/twiggs-money-flow/impl.ts
- Package on npm: https://www.npmjs.com/package/fintech-algorithms
- Domain index for agents: https://docs.thefintechbuilder.com/technical-indicators/llms.txt