application of futures
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Application of Futures
Chitra Potdar
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The Future Payoffs The payoff for a person who buys a futures contract
is similar to the payoff for a person who holds anasset
He has a potentially unlimited upside as well as apotentially unlimited downside
For e.g. a speculator who buys a two-month Niftyindex futures contract when the Nifty stands at 2220
The underlying asset in this case is the Niftyportfolio. When the index moves up, the long futuresposition starts making profits, and when the indexmoves down it starts making losses
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The Future Payoffs for the
Seller
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Valuation of Stock Index A stock index traces the changes in the value
of hypothetical stocks
The value of a futures contract on a stockindex may be obtained by using the cost of carry model
The asset price today would simply be the
future price less the cost of storage andinterest
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Valuation of Futures Futures price = Spot price + Cost of Carry
Spot price is the price of the asset today (in
the cash market)
Cost of carry is the sum of all costs incurred if a similar position is taken in cash and carried
to expiry of the futures contract LESS anyrevenue that may arise out of holding theasset. The cost is typically interest cost andrevenue is in the form of dividend
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Valuation of Futures Future price = Spot price + Cost of
carry - Inflows
Cost of carry = Financing cost, storagecost and insurance cost
Inflows = Dividend or interest income
The difference between the Future price andthe Stock price is Basis
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Valuation of Futures Mathematical terms
Compounding F = S(1+r/m)mt
Continuous Compounding F = Sert
r = Cost of financing (using continuously
compounded interest rate) T Time till expiration in epsilon 2.71828
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Valuation of Futures Securities Providing no income
F = Sert
Securities Providing an expected cash Income/ Dividend
F = (S - I)ert , wherein I = de-rt
Securities Providing a known yield F = Se (r-y)t
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Security XYZ Ltd trades in the spot market at Rs. 1150. Money can be invested at 11%
p.a. What is the fair value of a one-monthfutures contract on XYZ?
Illustration 1
Securities providing no income
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Illustration 1 - Answer
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Illustration 2
An equity share of IPCL quoting at Rs.270/-on 1.1.2007 in the cash market & the future
price with March 2007 expiration date,quoting at Rs.275/- The borrowing rate is10% & the expected dividend payable before31.03.2007 is Rs.2.50. What is the 3 monthfutures price of IPCL as on 1.1.2007?
Pricing index futures given
expected dividend
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Illustration 3
A two-month futures contract trades on theNSE. The cost of financing is 10% and the
dividend yield on Nifty is 2% annualized. Thespot value of Nifty 4000. What is the fairvalue of the futures contract?
Pricing index futures given
expected dividend yield
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Pricing of Futures Consider a 3 month expiry futures contract
on a stock. The underlying stock is available
for Rs.70 (Face value Rs.10). Withcontinuously compounded risk free rate of 8% p.a. find out the price of a Future undervarious circumstances
Illustration 3
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Pricing of Futures When the stock does not pay dividend Ans : 71.414
When the stock pays a dividend of 5% Ans : 70.53 When the stock pays a dividend of Rs.1.50/- Ans : 69.91
When the stock Pays a dividend of 1.50 in amonths time Ans : 69.89
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Pricing of Futures 4. When the stock pays a dividend of Rs.
2/- today
Ans : 69.37
5. When the stock pays a dividend of 10%today
Ans : 70.39
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Pricing of Index Futures A futures contract on the stock market index
gives its owner the right and obligation to
buy or sell the portfolio of stockscharacterized by the index
Stock index futures are cash settled; there isno delivery of the underlying stocks
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Pricing of Index Futures The main differences between commodity
and equity index futures are that
There are no costs of storage involved inholding equity
Equity comes with a dividend stream,which is a negative cost if you are long thestock and a positive cost if you are short the stock
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Pricing of Index Futures Cost of carry = Financing cost Dividends
A crucial aspect of dealing with equity futures
as opposed to commodity futures is anaccurate forecasting of dividends
The better the forecast of dividend offered bythe better is the estimate of the futures price
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Pricing of Index Futures The pricing of stock futures is also based on
the cost-of-carry model, where the carrying
cost is the cost of financing the purchase of the stock, minus the present value of dividends obtained from the stock
If no dividends are expected during the life of
the contract, pricing futures on that stock isvery simple. It simply involves multiplying thespot price by the cost of carry
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Pricing of Index Futures Ft = St [1+(rt) (T/365) (dt) (T/365)]
where St = Spot price of Index
T = the no of days until expiration
Ft = Fair value of futures contract that expires in T days
rt = risk free rate of return for T days
dt = dividend yield for the T days
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Illustration - 1 If NSE spot index is 4000, the cost of
borrowing is 10.50% and the expected
dividend yield is 2%p.a. What is the fair valueof the Nifty futures contract with one monthexpiration?
= 4000 [1+0.1050*30/365 0.02*(30/365)]
= 4027.95
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Illustration -2 Consider a 3 month expiry futures contract on
an index. The underlying index is available for
4000. With continuously compounded Riskfree rate (CCRI) of 8% p.a. For each of thescenario the price of the index is
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Illustration -2 When the dividend yield is 5% and only 50%
of the stocks in the index distribute dividends
Ans : 4055 [4000* e(0.08-0.5*0.05)*0.25]
When the dividend yield is 5% and only 25%of the stocks in the index distribute dividends
Ans : 4068
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Effect of Corporate announcementson stock future prices Role of
Exchange If announcements like dividends, bonus, stock split,
rights etc. are made by the company the exchangeadjusts the future position on cum-benefit and on ex-
benefit day is the same As per the policy and the stock exchanges if the
dividend is more than 10% of the market price of thestock on the day of the announcement, the futureprice is adjusted
The exchanges rollover the positions from the last-cum-dividend day to the ex-dividend day by reducingthe settlement price by dividend
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Future Price Indicators1. Volume and Open Interest
2. Market wide Open Interest
3. Cost of Carry and Basis
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Volume and Open Interest Is the total no of shares or contracts that
have changed hands in one day trading
session in the market Open interest is the no of contracts that are
bought but not yet settled
Volume and open interest can be a barometer
of future activity and direction
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Future Price Indicators A price change on a low volume is a
correction against the direction of the major
price trend A price change on a high volume is a signal
in the direction of the major price trend
Futures is the zero sum game i.e. losersprovide the funds to the winners (those whopredicted the correct trend)
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Future Price Indicators The trend could be up or down If the winners are bulls i.e. market is going
up, increasing open interest means upwardprice move would continue If the winners are bears i.e. market is going
down, increasing open interest meansdownward price move would continue
Increasing open interest means the playersare betting on the prevailing price trend andthe trend is expected to continue and viceversa
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Future Price Indicators
Price Volume
Open
Interest Change in market
Rising Up Up New money enetring market
Rising Down Down Money Leaving Market
Declining Up Up Aggressive New Short Selling
Declining Down Down
Liquidation by discouraged
traders, market bottoms out,
a bullish signal
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Cost of carry in the rising and
falling market Incremental cost of carry + incremental long position
= Fresh Long position
Reducing cost of carry + Reducing open interest =Long squaring
Reducing cost of carry + Increasing open interest =Fresh Short position
Increasing cost of carry + Decreasing open interest =
Short covering