T4 API 4.7 Documentation
MarketVTT Property
List of variable tick table definitions, if any.
Definition
Namespace: T4.API
Assembly: T4API.47 (in T4API.47.dll) Version: 4.7.0.0 (4.7.68.4)
Assembly: T4API.47 (in T4API.47.dll) Version: 4.7.0.0 (4.7.68.4)
C#
public string VTT { get; }VB
Public ReadOnly Property VTT As String
GetProperty Value
StringReturn Value
StringRemarks
Some markets, notably some CME option markets, have a variable tick table defined that specifies
what prices are allowed in different price ranges.
For example, E-Mini S&P 500 options are currently defined with a VTT of '5;P<-500=25;P>500=25;'
The list is semi-colon seperated. The first list item value is the default numerator to use. The remaining items define exceptions to this default numerator. Each item is in the form of a formula starting with 'P', meaning the price, then either < or > and then the price. After that is '=' and the numerator to use for that range. e.g. 'P>500=25' means that if the price is greater than 500 then the numerator is 25, if it is less then the default numerator of 5 applies. In this case valid prices would be 490, 495, 500, 525, 550 etc.
Note: The prices in this list are all display prices and are not in ticks. So Eurodollar options may have a VTT of '0.25;P<-5=0.5;P>5=0.5;'
If this list is empty then there the market does not use variable tick tables. The list may include an upper boundary, lower boundary or both or multiples of each.
For example, E-Mini S&P 500 options are currently defined with a VTT of '5;P<-500=25;P>500=25;'
The list is semi-colon seperated. The first list item value is the default numerator to use. The remaining items define exceptions to this default numerator. Each item is in the form of a formula starting with 'P', meaning the price, then either < or > and then the price. After that is '=' and the numerator to use for that range. e.g. 'P>500=25' means that if the price is greater than 500 then the numerator is 25, if it is less then the default numerator of 5 applies. In this case valid prices would be 490, 495, 500, 525, 550 etc.
Note: The prices in this list are all display prices and are not in ticks. So Eurodollar options may have a VTT of '0.25;P<-5=0.5;P>5=0.5;'
If this list is empty then there the market does not use variable tick tables. The list may include an upper boundary, lower boundary or both or multiples of each.