Investments Flashcards
Margin Trigger Price Shortcut
Maintenance 25% = 2/3 buy price
Maintenance 30% = 2/3 buy price, then pick next highest #
Margin Call Formula
(1-initial margin % / 1-maintenance %) x Purchase price of stock
Holding Period Return Formula
[Sold for +- (What happened while holding) - OOP Cost] / OOP Cost
Identify Forumla & Symbols
COVij / σiσj
Correlation Coefficient AKA “R”
COVij = covariance
σ = stock standard deviation
Choosing between Sharpe, Treynor, Alpha
R squared > 60: Choose Highest Alpha
(If no Alpha, highest Treynor)
R squared <60: Highest Sharpe
Current Yield Formula
Annual Int. in $ / Current Market Price
Real Estate Intrinsic Value Formula
NOI / Cap Rate
What about Cap rate?:
NOI/Intrinsic Value
DDM Shortcut: 1st Grow Rate > 2nd Grow Rate
- Apply D(1+g) / (r-g) to 2nd rate
- Choose next HIGHEST answer from 1. calc
REMEMBER: 1st rate HIGHER, next HIGHER answer
DDM Shortcut: 1st Grow Rate < 2nd Grow Rate
- Apply D(1+g) / (r-g) to 2nd rate
- Choose next LOWEST answer from 1. calc
REMEMBER: 1st rate LOWER, next LOWER answer
DDM for Stock Value
D(1+g) / (r-g)
D = this year’s div.
r = req. ROR
g = growth rate
*Use decimals
Identify Formula & Symbols
rf + (rm-rf)B
Required Rate of Return AKA SML
rf = risk-free rate
rm = market return
B = Beta
Is used for the “r” in D(1+g) / (r-g)
*Use whole numbers
Identify Formula & Symbols
[D(1+g) / P] + g
Required Rate of Return
D = this years div
g = growth rate
P = stock price
Use when rf, rm not given
*Use decimals
-D[∆y / 1+y]
Change in bond price
D = duration
∆y = change in interest rate
y = YTM
Duration always entered as negative
*Use decimals
Stock Standard Deviation
(Covariance given)
σj = COVij / Pijσi
COVij = covariance
Pij = correlation coefficient
σi = stand dev of known stock
solve for σj
CML vs SML
CML
- Diversified
- Standard Deviation
SML
- All assets, diversified or not
- BETA
Bond Conversion Value Formula
(Par value / conversion price) x FMV of stock
Covariance v. Correlation Coefficient
Covariance tells the direction of a relationship (positive or negative)
Correlation Coefficient tells direction and strength
Duration Relationships
Duration ↑ YTM ↓
Duration ↑ Mkt. Int. Rate↓
Duration ↑ Coupon↓
Duration ↑ Yrs. to Maturity↑
NOI Formula
Gross Rental
+ Non-rental income
- Vacancy/collection loss
- Operating expense
= NOI
Geometric Mean Calc
“Time Weighted Return”
Step 1: +1 to all decimal returns
Step 2: MULTIPLE returns together = A
FV = A
PV = -1
N = Yrs. of investment
Solve for = I/YR
Risk Adjusted Return Formula
Return / β
Identify Formula & Symbols
Pijσiσj
Covariance
P = correlation coefficient
σ = stand dev of stock(s)
Identify Formula & Symbols
Pijσi / σm
Beta
Pij = correlation coefficient
σi = stand dev of stock
σm = stand dev of market
Standard Deviation Calc
(single investment)
*Year return ± ∑
Gold, 8 key = stand dev
*apply for each year return given