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Does the Alpaca brokerage model include support for fractional shares?
The Alpaca documentation specifies that eligible securities that support fractional shares require a minimum of $1, and it cannot exceed 9 decimal places for the quantity or notional quantity.
Mia Alissi
Currently, the QuantConnect documentation and API references for the AlpacaBrokerageModel do not explicitly confirm support for fractional shares. However, the Alpaca platform itself does support fractional trading, subject to specific conditions and securities being eligible. Since Alpaca allows fractional trading, it is very likely that the AlpacaBrokerageModel in QuantConnect would accommodate this, as QuantConnect aims to mirror the brokerage's capabilities. For verification or implementation of fractional trades, you might consider consulting recent updates directly from QuantConnect's LEAN engine or community forums for the latest developments.
Sources: Alpaca - QuantConnect.com, Supported Models - QuantConnect.com, QuantConnect Paper Trading - QuantConnect.com
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