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Yield Curve
[This yield curve provides the interest rates used to calculate index arbitrage program trading values.]
Updated: Friday, July-10-2020
11:40pm ET

Yield Curve Used to Calculate Index Arbitrage Program Trading Values

The yield curve is constructed daily as piecewise linear segments.
Individual segments are constructed as zero coupon yields from current quotations for deposit rates and Eurodollar futures. The segments are consecutively linked mathematically, according to conventional yield curve construction techniques.
Quotations for deposit rates and Eurodollar futures are used to construct the yield curve because they are actively traded and, therefore, have good price (and yield) discovery.
The interest rate for a given index future is determined by selecting the yield that corresponds to its settlement (expiration) date on the yield curve. Internally, this is accomplished by interpolation, using the two yields at the nodes of the relevant line segment; viz., the line segment defined by the date coordinates that surround the futures' expiration date.
The interest rates in the following tables are rounded to six decimal places; internal precision is maintained to at least twelve decimal places.

Yield Curve Data Used to Construct the Above Graph
Yield Curve Origin Date is 07-13-2020
Date Number
of Days
from Origin
Interest Rate
08-13-202031 0.282855 
10-14-202093 0.290436 
11-18-2020128 0.236262 
12-16-2020156 0.233422 
01-20-2021191 0.236486 

Table of the active index futures and the interest rates
(derived from the above yield curve)
that are used to calculate their index arbitrage program trading values.
 Index Futures Index Futures
Expiration Date
of Days
from Origin
Interest Rate
S&P 500      
  SEP 2020 09-18-2020   69   0.287501  
  DEC 2020 12-18-2020   160   0.233772  
Nasdaq 100      
  SEP 2020 09-18-2020   67   0.287257  
  DEC 2020 12-18-2020   158   0.233597  
Dow Jones      
  SEP 2020 09-18-2020   69   0.287501  
  DEC 2020 12-18-2020   160   0.233772  


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