Stream Option Vega
Streams the real-time vega Greek for options contracts. Vega measures the rate of change in option price relative to a 1% change in implied volatility.
Symbol Format
Options use OCC (Options Clearing Corporation) format:
- Format:
SYMBOL + YYMMDD + C/P + Strike(8 digits) - Example:
AAPL240315C00170000= AAPL Call, Mar 15 2024, Strike $170
Vega Characteristics
| Scenario | Vega Behavior |
|---|---|
| At-the-money | Highest vega |
| Long-dated | Higher vega |
| Near expiration | Lower vega |
| Deep ITM/OTM | Lower vega |
Notes
- Data streams automatically update in Excel
- Vega is always positive for both calls and puts
- Higher for long-dated and at-the-money options
Syntax
=QM_Stream_Vega(Symbol)Parameters
Option symbol in OCC format
Returns
Option vega value
Examples
=QM_Stream_Vega("AAPL240315C00170000")=QM_Stream_Vega("MSFT240315P00400000")=QM_Stream_Vega(A1)When to Use
- Volatility trading strategies
- Understanding IV sensitivity
- Position vega management
- Pre-earnings analysis
When NOT to Use
| Scenario | Use Instead |
|---|---|
| Need delta | QM_Stream_Delta() |
| Need gamma | QM_Stream_Gamma() |
| Need theta | QM_Stream_Theta() |
| Need implied volatility | QM_Stream_ImpliedVolatality() |
Common Issues & FAQ
What does vega tell me?
Vega shows how much the option price will change for a 1% move in IV. A vega of 0.25 means the option gains $0.25 if IV rises 1%.
When is vega most important?
Vega matters most before events that affect volatility, like earnings announcements.
Excel Templates Using Stream Option Vega
These ready-made MarketXLS templates call QM_Stream_Vega() in their worksheet formulas. Open one to see the function working inside a complete model.
Related Formulas
More MarketXLS Price Quotes (Streaming) formulas you can use in the same worksheet:
- Stream Percentage Change
- Stream Percentage Change
- Stream Post Market Change
- Stream Post Market Change
- Stream Post Market Last
- Stream Post Market Last Price
- Stream Post Market Last Trade Time
- Stream Post Market Last Trade Time
See QM_Stream_Vega used in a complete workbook: Diagonal Spread: Complete Options Strategy Guide with Excel Setup
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