Formulas Flashcards

(30 cards)

1
Q

What is the ACB of a Whole life policy?

A

ACB = (Premiums + Loan int Paid) - Dividends received - NCPI

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2
Q

What is the formula for Portfolio Expected Return?

A

E(Rp) = ∑(wi × Ri)

Measures: Weighted average return of all holdings. Usually asked: Find portfolio return given weights & returns (sometimes solve for missing weight).

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3
Q

What is the formula for Portfolio Variance (2 assets)?

A

σp² = wA²σA² + wB²σB² + 2wAwBσAσBρAB

Measures: Portfolio volatility (risk), adjusted for diversification. Usually asked: Find portfolio standard deviation; test effects of correlation (ρ = +1 → no diversification, ρ = −1 → perfect hedge).

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4
Q

What is the formula for the Sharpe Ratio?

A

S = (Rp - Rf) / σp

Measures: Excess return per unit of total risk (volatility). Usually asked: Compare portfolios → higher Sharpe = better risk-adjusted performance.

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5
Q

What is the formula for CAPM (Capital Asset Pricing Model)?

A

E(Ri) = Rf + βi(E(Rm) - Rf)

Measures: Theoretical required return given systematic risk (β). Usually asked: Find expected return of a stock, or solve for β if return is known.

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6
Q

What is the formula for Beta?

A

βi = Cov(Ri, Rm) / σm²

Measures: Systematic risk (sensitivity to market). Usually asked: Calculate beta from covariance & variance; interpret (β > 1 = aggressive, β < 1 = defensive).

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7
Q

What is the formula for Jensen’s Alpha?

A

α = Rp - [Rf + βp(Rm - Rf)]

Measures: Fund manager’s skill/performance vs. CAPM prediction. Usually asked: Positive alpha = outperformance; negative = underperformance.

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8
Q

What is the formula for the Treynor Ratio?

A

T = (Rp - Rf) / βp

Measures: Excess return per unit of systematic risk (β). Usually asked: Compare portfolios when diversifiable risk is not relevant.

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9
Q

What is the formula for Coefficient of Variation (CV)?

A

CV = σ / E(R)

Measures: Risk per unit of return. Useful when comparing assets with very different returns. Usually asked: Lower CV = more efficient investment.

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10
Q

What is a key difference between Sharpe and Treynor ratios?

A

Sharpe = total risk (σ), Treynor = systematic risk (β)

CFP exam tip: Alpha → directly tests manager skill. CAPM & Beta → test required returns and risk premium.

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11
Q

Formula, risk used, and what Sharpe measures?

A

Formula: (Rp - Rf) / σp.
Risk: Total risk (σ).
Measures: Excess return per unit of total volatility.

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12
Q

Formula, risk used, and what Treynor measures?

A

Formula: (Rp - Rf) / βp.
Risk: Systematic risk (β).
Measures: Excess return per unit of market risk.

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13
Q

Formula and what Jensen’s Alpha measures?

A

Formula: α = Rp - [Rf + βp(Rm - Rf)].
Measures: Portfolio manager’s skill vs. CAPM benchmark. Positive α = outperformance.

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14
Q

Formula and what CV measures?

A

Formula: CV = σ / E(R).
Measures: Risk per unit of expected return. Lower CV = more efficient.

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15
Q

What is the formula for valuing a stock with growing dividends?

A

𝑃₀ = 𝐷₁/(𝑟 - 𝑔)

where 𝐷₁ = next dividend.

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16
Q

If given last dividend (D₀), what must you do before using DDM?

A

Convert: 𝐷₁ = 𝐷₀(1 + 𝑔)

17
Q

Rearrange DDM to find required return?

A

𝑟 = 𝐷₁/P₀ + 𝑔

18
Q

Rearrange DDM to find growth (g)?

A

𝑔 = 𝑟 - 𝐷₁/𝑃₀

19
Q

What formula gives the required return based on market risk?

A

𝐸(𝑅) = 𝑅p-[Rf + β (Rm -Rf)]

20
Q

How do CAPM and DDM work together?

A

Use CAPM to find required return (r), then plug r into DDM to find fair stock price.

21
Q

Using DDM, how do you decide if a stock is overvalued or undervalued?

A

If DDM price > market price → undervalued (buy). If DDM price < market price → overvalued (sell).

22
Q

What 2 components make up required return (r) in DDM?

A

Dividend yield D₁/𝑃₀ + growth (g).

23
Q

Formula for the Current Ratio?

A

Current Ratio = Current Assets / Current Liabilities

Measures liquidity: higher = stronger ability to pay short-term debts.

24
Q

Formula for the Quick Ratio (Acid-Test)?

A

Quick Ratio = (Current Assets - Inventory) / Current Liabilities

Stricter liquidity test (excludes inventory).

25
Formula for Working Capital?
Working Capital = Current Assets - Current Liabilities ## Footnote Measures absolute cushion for short-term obligations.
26
Formula for EPS (Earnings per Share)?
EPS = Net Income / Weighted Avg. Shares Outstanding ## Footnote Key measure of profitability per share.
27
Formula for P/E Ratio?
P/E = Price per Share / EPS ## Footnote Shows how much investors pay for $1 of earnings.
28
If EPS rises, what usually happens to the stock price (all else equal)?
Stock price tends to increase, since higher earnings per share make the company more valuable.
29
If P/E is high, what does that signal?
Investors expect high growth (growth stock).
30
If P/E is low, what does that signal?
Investors expect lower growth (value stock).