Derv Flashcards

1
Q

3 types of CDS

A
  1. Single name CDS: reference obligation is FI
  2. Index CDS
  3. Tranche CDS
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2
Q

CDS pays when:

A

When the reference entity(issuer) defaults in ANY other issue ranked park passu or higher

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3
Q

CDS payoff

A

Based on MV of cheapest to deliver bond with same seniority as reference obligation

CTD: Debt purchased at lowest cost but same seniority

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4
Q

CDS:

Protection buyer/seller

A

Insurance contract; credit risk protection only

Protection buyer pays CDS spread
Protection seller longs credit risk
FV: notional; amt to be protected

Protection leg: contingent pmt seller makes to buyer
Premium leg: pmt buyer makes to seller

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5
Q

Hazard Rate

A

Probability that an event will occur given that it hasn’t already occurred

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6
Q

Credit curve

A

Credit spread for a range of maturities of company’s debt make up its credit curve

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7
Q

IR Cap

A

Agreement which one party agrees to pay when benchmark IR > strike rate (cap rate); portfolio of call options on LIBOR (caplets)

Buyer: call on LIBOR

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8
Q

IR Floor

A

Agreement which one party agrees to pay when benchmark IR

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9
Q

For a call option on a FI:

A

When IR rises, price falls, call option value decreases

When IR falls, price rises, call option value rises

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10
Q

For a put option on FI:

A

When IR rises, price falls, put option value rises

When IR falls, price rises, put option value falls

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11
Q

Interest rate collar

A

Issuer: buys cap (protect from high IR) and sells a floor
Bond holder: buys floor (protect from low IR) and sells the cap.

The net prem paid by an ISSUER for a collar = (prem paid for cap) - (prem received for selling the floor). Issuer can set the exercise rates on the cap and floor such that the price received for floor = price paid for cap. Eliminates the upfront cost of buying interest rate call options, and result in a zero-cost collar for the issuer.

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12
Q

2 types of collars

A
  1. Buy cap, sell floor
    Investor has LIBOR liability, borrowing cost will stay within collar (floor-cap)
  2. Buy floor, sell cap
    Investor has LIBOR asset, return will stay within collar (floor-cap)
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13
Q

Fiduciary Call

A

(Call option on stock) + (zero coupon rf bond)

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14
Q

Protective Put

A

(Put option on stock) + (share of stock)

Pay prem for limited downside
Unlimited upside

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15
Q

Hedging (Covered Call)

A

Receive call premium

No upside potential

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16
Q

Delta Hedging

A

Hedge needs to be continually rebalanced even if stock price doesn’t chg, b/c delta chgs as time passes and option approaches maturity

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17
Q

1-period binomial model

A

U: size of up move
D: 1 - U
prob(u): prob of up move
prob(d): 1 - prob(u)

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18
Q

Risk Neutral Probability

A
prob(u) = (1+ rf - D)/(U-D)
prob(d) = 1 - prob(u)
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19
Q

Lower/Upper Bounds

call option

A

Lower: Max(0, So- (X/(1+rf)^t))

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20
Q

Lower/Upper Bounds

put option

A

Lower:
European Put: Max(0, (X/(1+r)^t) - So)
American Put: Max(0,X-So)

21
Q

Price options on bonds

A

1) Price bond at each node using projected IR
2) Calculate intrinsic value of option at each node @ maturity of the options
3) Bring the terminal option values determined in step 2 back to today

22
Q

BSM assumptions

A

1) underlying price follows lognormal distribution
2) rf constant and known
3) vol of underlying is constant and known
4) mkts are frictionless
5) underlying has no CFs
6) European options only

23
Q

BSM inputs

A

1) Stock price
2) Exercise price
3) Stock volatility
4) Time to expiration
5) rf rate

24
Q

Vega

A

measures sensitivity of option price to chgs in volatility of So

25
Rho
option price doesnt chg much with chgs in rf rate
26
Theta
Time
27
Delta Vega Rho Theta
``` Calls: Delta > 0 Vega > 0 Rho > 0 Value approaches $0 as option approaches maturity (Theta 0 Rho ```
28
Deep ITM puts have a delta of
-1
29
Deep OTM calls have a delta of
0
30
Call option delta is between 0 and 1 if...
Assuming the So doesn't change 1) call option is OTM, the call delta moves closer to 0 as time passes 2) ITM the delta moves closer to 1 as time passes
31
Gamma
Measures rate of chg in delta as the So chgs | graph: upside down v ATM and close to expiration options: higher gammas ITM/OTM: small gammas
32
TBill Futures
Eurodollar & Tbill futures settled in cash Discount factor: 1- (quote*(t/360)) Rf Yield = (Par - discount factor)/(discount factor) FP = So*[(1+rf)^t]
33
TBond Futures
FP = (bond price*[(1+rf)^t]) - FVC)/Conversion factor
34
Stock Futures
(So*[(1+rf)^t] - FV(Div)
35
EQ Div Futures
So*e^[(rf(cc) - div yield(cc))*t]
36
FX Futures
So*{ [(1+rd)^t]/[(1+rf)^t] }
37
Put Call Parity
Co + X/[(1+rf)^t] = Po + So
38
FX Swap Price
1 party receives, 1 party pays ``` stick to curncy in qs freq: pmts 1) calc PV(interest & principal) use rf(A/360) 2) convert a side using current spot rate 3) net out both parties to see who pays ```
39
Swap Rate
1-(last discount factor)/ (sum of discount factors)
40
Payer Swaption (Long vs Short)
Long Payer: when IR falls, swaption value decreases Short Payer: when IR falls, swaption value increases
41
Receiver Swaption (Long vs Short)
Long Receiver: when IR falls, swaption value increases Short Receiver: when IR falls, swaption value decreases
42
Payer vs Receiver Swaption
Payer swaption: right to enter swap to pay the fixed leg and receive the floating leg. Receiver swaption: right to enter swap to receive the fixed leg, and pay the floating leg.
43
At initiation of IR Swap
both parties exposed to potential credit risk (low exposure)
44
Credit Risk on Payer Swaption
Long position (fixed receiver) exposed to credit risk due to chance counterparty will default if swaption expires ITM Short position isn't exposed to credit risk b/c they'll not receive a pmt at maturity no matter if the swaption expires in or out of the money
45
Eurdollar vs Tbill Futures
the Eurodollar contract is better at hedging LIBOR based investments b/c it's a LIBOR based contract T-bill contract is based on T-bill rates, not perfectly correlated to LIBOR
46
Long Eurodollar Contract
If IR falls, yield on LIBOR investment will fall, but the decrease will be offset by gains on a long Eurodollar futures contract
47
2 year floor
equal to 1 yr European put option plus value of a 2 yr put option (floorlet) A 1yr floorlet with an annual payoff is the same as a 1yr put option on annual LIBOR value of 2 yr put option is equal to value of 2 yr floor LESS value of 1 yr put option
48
Call Option (European vs American)
Early exercise is not valuable for call options on NON-DIVIDEND PAYING stocks, so American call = European call