# Exchange Traded Fund Supply

## Contents

* [ETF Supply (SplyXNtv, SplyXUSD)](#splyex)

## ETF Supply <a href="#splyex" id="splyex"></a>

### Definition

The sum held by an ETF at the end of that interval.

| Name                                       | MetricID   | Unit         | Interval |
| ------------------------------------------ | ---------- | ------------ | -------- |
| ARK Invest Supply (native units)           | SplyARKNtv | Native units | 1 day    |
| ARK Invest Supply (USD)                    | SplyARKUSD | USD          | 1 day    |
| BlackRock Supply (native units)            | SplyBLKNtv | Native units | 1 day    |
| BlackRock Supply (USD)                     | SplyBLKUSD | USD          | 1 day    |
| Bitwise Supply (native units)              | SplyBWSNtv | Native units | 1 day    |
| Bitwise Supply (USD)                       | SplyBWSUSD | USD          | 1 day    |
| Exchange Traded Fund Supply (native units) | SplyEtfNtv | Native units | 1 day    |
| Exchange Traded Fund Supply (USD)          | SplyEtfUSD | USD          | 1 day    |
| Grayscale Supply (native units)            | SplyGSCNtv | Native units | 1 day    |
| Grayscale Supply (USD)                     | SplyGSCUSD | USD          | 1 day    |
| Invesco Supply (native units)              | SplyINVNtv | Native units | 1 day    |
| Invesco Supply (USD)                       | SplyINVUSD | USD          | 1 day    |
| Franklin Templeton Supply (native units)   | SplyTMPNtv | Native units | 1 day    |
| Franklin Templeton Supply (USD)            | SplyTMPUSD | USD          | 1 day    |
| VanEck Supply (native units)               | SplyVANNtv | Native units | 1 day    |
| VanEck Supply (USD)                        | SplyVANUSD | USD          | 1 day    |
| Valkyrie Supply (native units)             | SplyVLKNtv | Native units | 1 day    |
| Valkyrie Supply (USD)                      | SplyVLKUSD | USD          | 1 day    |
| WisdomTree Supply (native units)           | SplyWDTNtv | Native units | 1 day    |
| WisdomTree Supply (USD)                    | SplyWDTUSD | USD          | 1 day    |

### Details

* All wallets (hot and cold) are considered to count towards the supply held by an ETF.
* USD metrics computed as `Sply{ETF}Ntv * PriceUSD`.
* `SplyEtf*` includes the balances of all addresses we have flagged as being controlled by an ETF.

### Availability for Assets

{% embed url="<https://coverage.coinmetrics.io/asset-metrics-v2/SplyEtfNtv>" %}

## API Endpoints

Exchange Supply metrics can be accessed using these endpoints:

* `timeseries/asset-metrics`

and by passing in the metric ID's `Sply{ETF}*` in the `metrics` parameter.

{% tabs %}
{% tab title="Shell" %}

```shell
curl --compressed "https://api.coinmetrics.io/v4/timeseries/asset-metrics?metrics=SplyARKNtv&assets=btc&pretty=true&api_key=<your_key>"
```

{% endtab %}

{% tab title="Python" %}

```python
import requests
response = requests.get('https://api.coinmetrics.io/v4/timeseries/asset-metrics?metrics=SplyARKNtv&assets=btc&pretty=true&api_key=<your_key>').json()
print(response)
```

{% endtab %}

{% tab title="Python Client" %}

```python
from coinmetrics.api_client import CoinMetricsClient

api_key = "<API_KEY>"
client = CoinMetricsClient(api_key)

print(
    client.get_asset_metrics(
        metrics="SplyARKNtv", 
        assets="btc",
    ).to_dataframe()
)
```

{% endtab %}
{% endtabs %}