Short Availability
Supported Providers
Introduction
This page describes all of the pre-built shortable providers in LEAN. If none of these models perform exactly how you want, create a custom shortable provider.
Null Provider
The NullShortableProvider doesn't provide shortable data, so it allows you to infinitely short assets. It's the shortable provider of the DefaultBrokerageModel.
security.SetShortableProvider(new NullShortableProvider());
security.SetShortableProvider(NullShortableProvider())
To view the implementation of this model, see the LEAN GitHub repository.
Local Disk Provider
The LocalDiskShortableProvider sources short availability data from the local disk of a specific brokerage.
security.SetShortableProvider(new LocalDiskShortableProvider("axos")); security.SetShortableProvider(LocalDiskShortableProvider("axos"))
The following table describes the arguments the model accepts:
| Argument | Data Type | Description | Default Value |
|---|---|---|---|
brokerage | stringstr | Brokerage to read data |
To view the implementation of this model, see the LEAN GitHub repository.
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