Position.cs

public sealed class Position
{
    public string PositionId { get; init; } = string.Empty;

    public string StrategyJobId { get; init; } = string.Empty;

    public DateTime EntryTimestamp { get; init; }

    public DateTime ExitTimestamp { get; init; }

    public ExchangeMarket Market { get; init; } // BinanceSpot, BinanceUsdFutures, BinanceCoinFutures

    public string Symbol { get; init; } = string.Empty; // BTCUSDT
    
    public string BaseAsset { get; init; } = string.Empty; // BTC

    public string QuoteAsset { get; init; } = string.Empty; // USDT
    
    public decimal TargetEntryQuantity { get; init; } // The quantity set when Enter Position was called
    
    public decimal TargetEntryPrice { get; init; } // The price set when Enter Position was called (0 for market orders)
    
    public decimal TargetExitPrice { get; init; } // The price set when Exit Position was called (0 for market orders)

    public decimal AverageEntryPrice { get; init; } // Average Entry Price based on filled orders

    public decimal AverageExitPrice { get; init; } // Average Exit Price based on filled orders

    public decimal FilledEntryQuantity { get; init; } // How much of the position entry has been filled
    
    public decimal FilledExitQuantity { get; init; } // How much of the position exit has been filled 
    
    public OrderExecutionDirection ExecutionDirection { get; init; } // The current execution direction: Entering, Exiting, NotTrading 
    
    public ExecutionStrategy ExecutionStrategy { get; init; } // DMA, Peg, Sniper, TWAP (can change if different strat used on Exit)

    public string ExecutionStrategyParameters { get; init; } = string.Empty; // Parameters used for the execution strategy i.e. Time/Slices for TWAP
    
    public PositionStatus PositionStatus { get; init; } // Open or Closed

    public TradeMode TradeMode { get; init; } // Live or Sim

    public PositionSide PositionSide { get; init; } // Long or Short
}

As we discussed last week, a parameter of position process status is required, eg. 1. whether the entry/exit is finished(filled all) or 2. terminated(twap execution time expired but partial filled).

Let's suppose it is an entry: now I know OriginalQuantity and FilledEntryQuantity, but I still don't know the two cases above.

@achenquant have updated the fields. The above has been implemented in the code.

Thanks @shaunsales , looks good now!