Settlement of futures contracts on interest rate
Daily Mark-to-Market Settlement
The positions in the futures contracts for each member are marked-to-market to the daily settlement price of the futures contracts at the end of each trade day.
The profits/ losses are computed as the difference between the trade price or the previous day’s settlement price and the current day’s settlement price. The CMs who have suffered a loss are required to pay the mark-to-market loss amount to NSE CLEARING which is passed on to the members who have made a profit. This is known as daily mark-to-market settlement.
Daily mark to market settlement in respect of admitted deals in Interest rate futures contracts is cash settled by debit/ credit of the clearing accounts of clearing members with the respective clearing bank.
All positions (brought forward, created during the day, closed out during the day) of a clearing member in futures contracts, at the close of trading hours on a day, shall be marked to market at the daily settlement price and settled on T+1 day basis. The settlement shall be netted with the settlement of Currency futures.
a. NSE Bond Futures II (NBF II)
The daily settlement price (DSP) would be determined in the following manner:
The DSP is the volume weighted average Futures Price (VWAP) of the trades in the last 30 minute of trading.
If the DSP cannot be calculated as above, a theoretical price would be used. Theoretical futures price of the contract is calculated as per the below formula.
Theoretical Future price = Cash price + Financing cost – Income on cash position
Cash price = Clean Price + Accrued Interest
- Clean price of the security is the weighted average cash price of the respective underlying bond during the last two hours of trading on the NDS Order Matching platform.
- If no trades are executed in the underlying bond then, a theoretical price with reference to the FIMMDA rates shall be used
The day count convention for accrued interest shall be on the basis of a 360 days year, consisting of 12 months of 30 days each and half yearly coupon payment.
The financing cost and income on cash position shall be computed using the applicable MIBOR on the basis of 365-day year, consisting of 12 months and actual days in the month.
b. Futures on 91 day T-bill’
All the open positions in futures on 91 day GOI T-Bill shall be marked to market on the Daily Settlement Price. The daily settlement price would be determined in the following manner:
100 – 0.25 * Yw
Where Yw (futures yield) shall be volume weighted average futures yield of traded futures contracts in the last 30 minutes of trading subject to there being at least 5 trades. Failing which, trades during the last 60 minutes shall be used for the calculation, subject to at least 5 trades. Failing which, trades during the last 120 minutes shall be used for the calculation, subject to at least 5 trades.
If the daily contract settlement value cannot be calculated as above, a theoretical futures yield would be used for computation. The latest available Treasury Bill benchmark rates published by FIMMDA of various tenors shall be used for computation of theoretical futures yield as follows:
Step – 1
Interpolate / Extrapolate yield for residual maturity (90 plus Days to maturity of contract) period using Treasury Bill benchmark yield curve.
Step – 2
Interpolate / Extrapolate yield for remaining maturity (Maturity of contract minus Today) period using Treasury Bill benchmark yield curve.
Step – 3
Forward yield for 90 days i.e. from remaining maturity of the contract till residual maturity of the contract may be computed using yields calculated in step 1 and 2.
Interpolation and extrapolation in step1 and step2 shall be applicable only when the yield of required tenor is not available on Treasury Bill Yield Curve published by FIMMDA.
On the expiry of the futures contracts, NSE CLEARING marks all positions of a CM to the final settlement price and the resulting profit / loss is settled in cash.
The final settlement profit / loss are computed as the difference between trade price or the previous day’s settlement price, as the case may be, and the final settlement price on the last trading day.
The settlement shall be netted along with the settlement of other instruments in the Currency Derivatives Segment.
Open positions in futures contracts cease to exist after their last trading day / expiry.
Final Settlement Price
NSE Bond Futures II (NBF II)
The final settlement price is the weighted average price of the underlying bond based on the process during the last two hours of the trading on NDS-OM subject to minimum of 5 trades.
If less than 5 trades are executed in the underlying bond during the last two hours of trading, then FIMMDA price shall be used as final settlement price.
Futures on 91 Day T-bills
The final settlement price would be determined in the following manner: Rs 100 – 0.25 * Yf
Where Yf is weighted average discount yield obtained from RBI’s weekly auction of 91-day GOI T-Bill on the day of expiry.
The weighted average price obtained from the weekly auction of 91day GOI Treasury Bill on the day of expiry of the contract (notified by the RBI in its press release announcing the auction results of the day) shall be used for arriving at the weighted average discount yield as per the below formula specified in the RBI press release 2010-2011/ 1334 dated March 17, 2011.