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  • SCENARIO MARGIN
  • FLOOR MARGIN

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  1. AEVO PRoducts
  2. AEVO EXCHANGE
  3. Options Specifications

Portfolio Margin

Aevo’s portfolio margin provides lower margin requirements and increased leverage for traders who maintain a balanced portfolio of hedged positions. It is calculated based on a risk model which evaluates margin based on the aggregated positions of the account instead of on the individual contract level.

Portfolio margin consists of 2 components: scenario margin and floor margin.

SCENARIO MARGIN

It represents the core risk of an account’s portfolio by simulating its potential profit and loss under multiple hypothetical market conditions. Aevo evaluates this margin based on 15 scenarios. Each scenario assumes an up/down movement in either the price of the underlying and/or the option volatility. The scenarios are listed below.

Scenario

% of Max. Spot Movement

% of Max. IV Shift

1

Up 100%

Up 100%

2

Up 100%

Unchanged

3

Up 100%

Down 100%

4

Up 50%

Up 100%

5

Up 50%

Unchanged

6

Up 50%

Down 100%

7

Unchanged

Up 100%

8

Unchanged

Unchanged

9

Unchanged

Down 100%

10

Down 50%

Up 100%

11

Down 50%

Unchanged

12

Down 50%

Down 100%

13

Down 100%

Up 100%

14

Down 100%

Unchanged

15

Down 100%

Down 100%

The Max. Spot Movement and Max. Volatility Shift are risk parameters which will be set by Aevo’s team. These parameters will be set to the following numbers during the initial phase for ETH.

Parameter

Max. Move

Max. Spot Movement Up

20%

Max. Spot Movement Down

20%

Max. IV Shift Up

50%

Max. IV Shift Down

25%

Spot movements are percent movements where we increase or decrease the current observed spot price by the given magnitude. For example, if spot price currently sits at $1,400, we will run scenarios where spot price increases by 20% to $1,680 and spot price decreases by 20% to $1,120, among other scenarios.

On the other hand, IV shifts are parallel shifts where we add or subtract the current observed IV with the shift magnitude. For example, for an option which has a current IV of 60%, we will run scenarios where the IV for this option shifts up by 50% (the Max. IV Shift Up) to 110% and shifts down by 25% (the Max.IV Shift Down) to 35%. The parameters above will be assessed periodically by Aevo’s team and can be changed in the future.

FLOOR MARGIN

It ensures a minimum coverage for the account’s portfolio. It’s calculated using the following formula.

Floor Margin = Net Short Exposure(Option) x Unit Floor Margin

The floor margin is equal to the sum of net exposure for a given option strike in the account’s portfolio times the Unit Floor Margin. The Unit Floor Margin is a risk parameter set by Aevo’s team. This parameter will be set to 0.01 ETH. This will be assessed periodically by Aevo’s team and can be changed in the future. To provide a better understanding of how net short exposure is calculated, an example is given below.

Example 1.1 (Short Strangle):

  • Account holds the following positions:

    1x ETH-26AUG22-1500-C Short (IV: 50%, Mark Price: $17.04)

    1x ETH-26AUG22-1100-P Short (IV: 50%, Mark Price: $10.54)

  • Market condition:

    Current date: 29 July 2022 (Days to Expiry: 1 month)

    Current spot price: $1,300

  • Portfolio Margin:

Scenario

Spot Movement %

IV Shift %

Call Option P&L

Put Option P&L

Total P&L

1

+20% (= 100% * 20%)

+50% (= 100% * 50%)

-$182.79

-$7.26

-$190.06

2

+20%

Unchanged

-$100.42

$10.20

-$90.22

3

+20%

-25% (= 100% * -25%)

-$61.46

$10.54

-$50.92

4

+10% (= 50% * 20%)

+50%

-$111.34

-$21.24

-$132.58

5

+10%

Unchanged

-$33.23

$8.60

-$24.64

6

+10%

-25%

$2.67

$10.54

$13.21

7

Unchanged

+50%

-$56.76

-$44.75

-$101.52

8

Unchanged

Unchanged

$2.31

$1.38

$3.69

9

Unchanged

-25%

$16.71

$10.32

$27.04

10

-10%

+50%

-$19.43

-$82.54

-$101.97

11

-10%

Unchanged

$14.75

-$23.22

-$8.47

12

-10%

-25%

$17.40

$2.52

$19.92

13

-20%

+50%

$2.48

-$139.71

-$137.22

14

-20%

Unchanged

$17.18

-$83.30

-$66.12

15

-20%

-25%

$17.40

-$58.20

-$40.80

  • Scenario Margin = $190.06

  • Floor Margin = 2 x 0.01 ETH = 2 x (0.01 x $1,300) =$26

  • Maintenance Portfolio Margin = $216.06

  • Initial Portfolio Margin = $216.06 x 1.25 = $270.07

  • Margin requirement under a regular margin account:

    Initial Normal Margin = $287.08 x 1.25 = $358.85

    Maintenance Normal Margin =

Example 1.2 (Bull Spread)

  • Account holds the following positions:

    1x ETH-26AUG22-1500-C Long (IV: 50%, Mark Price: $15.09)

    1x ETH-26AUG22-1700-C Short (IV: 70%, Mark Price: $10.92)

  • Market condition:

    Current date: 29 July 2022 (Days to Expiry: 1 month)

    Current spot price: $1,300

  • Portfolio Margin:

Scenario

Spot Movement %

IV Shift %

1500 Call P&L

1700 Call P&L

Total P&L

1

+20% (= 100% * 20%)

+50% (= 100% * 50%)

$185.10

-$141.30

$43.80

2

+20%

Unchanged

$102.73

-$57.08

$45.65

3

+20%

-25% (= 100% * -25%)

$63.76

-$18.57

$45.20

4

+10% (= 50% * 20%)

+50%

$113.65

-$87.66

$25.99

5

+10%

Unchanged

$35.54

-$19.80

$15.74

6

+10%

-25%

-$0.36

$3.61

$3.24

7

Unchanged

+50%

$59.07

-$47.25

$11.82

8

Unchanged

Unchanged

$0.00

$0.00

$0.00

9

Unchanged

-25%

-$14.41

$9.88

-$4.52

10

-10%

+50%

$21.74

-$19.46

$2.28

11

-10%

Unchanged

-$12.44

$8.11

-$4.33

12

-10%

-25%

-$15.09

$10.85

-$4.24

13

-20%

+50%

-$0.17

-$2.55

-$2.72

14

-20%

Unchanged

-$14.87

$10.46

-$4.42

15

-20%

-25%

-$15.09

$10.92

-$4.17

  • Scenario Margin = $4.52

  • Floor Margin = 1 x 0.01 ETH = 1(0.01 x $1,300) = $13

  • Maintenance Portfolio Margin = $17.52

  • Initial Portfolio Margin = $17.52 x 1.25 = $21.90

  • Margin requirement under a regular margin account:

    Initial Normal Margin = $140.92 x 1.25 = $176.15

    Maintenance Normal Margin =

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Last updated 1 year ago

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