Stream Real-Time Pre-Market Change with MarketXLS

The QM_Stream_PreMarketChange function retrieves the current pre-market price difference for a given ticker symbol in real-time, directly within Excel. By leveraging this continuous RTD (Real-Time Data) streaming approach, you can monitor day-to-day fluctuations before the market even opens, helping you make more informed trading decisions.

Why Use This Function?

• Stay ahead of the open: View your stock’s pre-market movement to gauge early momentum.
• Real-time streaming updates: Automatically refresh data in Excel without manual intervention.
• Data-driven insights: Quickly identify overnight news impact on a stock’s price.
• Flexible usage: Integrate with other Excel calculations to build comprehensive trading dashboards.

How to Use in Excel

=QM_Stream_PreMarketChange("Symbol")

1. In any cell, type the function name followed by the stock symbol in quotes.
2. Press Enter to view the latest pre-market change.
3. The value will automatically update in real-time, provided your MarketXLS subscription is active and properly configured.

Parameters Explained

• Influenced by licensing and subscription validation: If the MarketXLS license is not valid or the data subscription is not configured, an error or a specific message is returned instead of numerical data.

Example Usage

Basic Examples

1. Single Stock Symbol
   Enter in cell A1:
   =QM_Stream_PreMarketChange("AAPL")
   Explanation: Shows Apple Inc.’s live pre-market change in the selected cell, updating automatically.

2. Another Symbol Example
   In cell B1:
   =QM_Stream_PreMarketChange("MSFT")
   Explanation: Provides Microsoft’s pre-market price change. If no pre-market data is available, you might see minimal changes or a zero value.

3. Handling Invalid Symbol
   In cell C1:
   =QM_Stream_PreMarketChange("XYZ123")
   Explanation: Returns "NA" if the ticker is unknown.

Advanced Scenarios

1. Watchlist Table

   • Arrange multiple cells, each referencing a different ticker (e.g., AAPL, MSFT, IBM).
   • Each cell updates in real-time, giving you a quick glance at various pre-market changes.

2. Integrating With Other Excel Functions

   • Combine QM_Stream_PreMarketChange with conditional formatting to highlight if a pre-market change is higher or lower than a certain threshold.
   • Use it within portfolio analysis tables that sum or average multiple real-time metrics to see overall pre-market performance.

3. Trading Strategy Examples

   • Use pre-market change data to set conditional triggers in Excel macros (e.g., highlight a ticker if it opens with more than a 2% gain compared to the previous close).
   • Track real-time changes on a watchlist to identify potential gap-up or gap-down scenarios.

Common Questions and Troubleshooting

1. Why am I getting "NA"?

   • This usually indicates an invalid or blank symbol, or that the symbol has no pre-market data available.

2. What if I see an error message instead of "NA"?

   • Check your MarketXLS license and data subscription settings. The function relies on a valid subscription to retrieve RTD data.

3. How often does the data refresh?

   • Pre-market change updates continuously as new data is available. There is no need to manually refresh Excel.

4. Does it work for non-US symbols or OTC markets?

   • This function is intended primarily for US stock symbols. Coverage for non-US or less common tickers may be limited.

By incorporating QM_Stream_PreMarketChange into your Excel workflow, you can efficiently track pre-market price changes in real time and gain a strategic trading edge before the US market opens. Make sure your MarketXLS license and data subscription are active and configured to power your decisions with live market intelligence.