Calculation Flashcards

Investments module

1
Q

Margin Maintenance Formula

A

( (1-initial margin %)/(1-maintenance margin %) ) X purchase price of stock

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2
Q

Required Rate of Return formula

A

Risk-free rate (RFR) + (market rate - RFR) * Beta

aka r(f) + (r(m) - r(f)) * B

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3
Q

Dividend Discount Model (DDM)

A

(current dividend * (1 + growth rate))/(required rate of return - growth)

aka D(o)(1+q)/(r-g)

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4
Q

Standard deviation on HP Calc

A

Sigma+ after each #, then S(x) (gold + 8)

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5
Q

Coefficient of Variation

A

Standard deviation (sigma) % expected return

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6
Q

Covariance(ij)

A

correlation coefficient(ij) * standard deviation of (i) * standard deviation of (j)

aka P(ij)sigma(i)sigma(j)

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7
Q

Correlation Coefficient (P(ij))

A

Covariance(ij)/Sigma (i) Sigma (j)

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8
Q

Beta

A

Correlation Coefficient(i)*Standard Deviation (i)/Standard deviation of the market

OR

Covariance(im)/standard deviation of the market ^2

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9
Q

Required Rate of Return

A

Risk-free rate + (market - risk-free rate) * Beta

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10
Q

Required Rate of Return with Current price, dividend, and growth rate

A

(Current dividend (1+growth rate)/price) + dividend growth

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11
Q

Change in bond price

A

-duration * (change in yield/1+yield)

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12
Q

Calculate Alpha

A

Return - risk-free rate + (market-RFR) * beta

Positive good, negative bad

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13
Q

Sharpe Calculation

A

r(p) - r(f)/sigma (p)

ALL #S SIGMA+, GOLD + 7 = r(p)
GOLD+8 = (sigma (p))

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14
Q

Capitalization Value

A

Annual Income/Capitalization Rate

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15
Q

NOI Calculation

A

Gross Rental Receipts
+ Non-rental income
= Potential Gross Income (PGI)
- vacancy + collection losses
= Effective Gross Income
- Operating Expenses
= NOI
aka Property’s cash flow

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16
Q

Property’s Intrinsic Value

A

Once you’ve calculated NOI,

IV = NOI/Cap Rate

17
Q

Coefficient of Variation Formula

A

Standard Deviation/Mean (average) return

18
Q

Standard Deviation vs Beta

A

Std Dev measures VARIABILITY of returns in a NONDIVERSIFIED portfolio and is a measure of TOTAL RISK.
Beta measures VOLATILITY of returns in a DIVERSIFIED portfolio and is a measure of SYSTEMATIC RISK.

19
Q

Current Yield

A

Annual interest in dollars/Bond’s current price

20
Q

Geometric Mean - definition/calculation

A

aka time-weighted return. To calculate:

  1. Add 1 to the returns (aka 25% is 1.25, -12% is .88)
  2. Multiply the returns
  3. The result is Future Value (FV)
  4. -1 is ALWAYS THE PRESENT VALUE
  5. N is the number of years
  6. solve for i
21
Q

time-weighted vs dollar-weighted

A

Time-weighted is investment performance as a % of capital at work. Used to compare managers.

Dollar-weighted measure changes in total dollar value. In other words, IRR/NPV. Used for absolute $ amts for financial goals.

22
Q

Real Rate of Return

A

= ((1+ after-tax return/1+ inflation rate) -1) *100

23
Q

Current Yield

A

Annual interest in dollars/Bond’s current price

24
Q

Taxable Equivalent Yield

A

tax-exempt yield/1-tax rate

OR

tax-exempt yield = TEY X (1-tax rate)

25
Q

Formula for employer contrib to Keogh

A
  1. Salary X 92.35 X .0765 = salary for contrib, then
  2. ((Plan Contrib %)/(1+plan contrib %))
    = Profit Sharing Amount
26
Q

SHORT-CUT ON KEOGH CALC

A

AFTER self-employment tax of .07065, Take Schedule C Net Income, then:

  1. Multiply by 12.12% for 15% contrib for non-owner employees
  2. Multiply by 18.59% for 25% contrib for non-owner employees