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CFA Updated
How do I analyze the tax burden component of DuPont and what signals trend changes?
Tax burden shifts flag changes in ETR — investigate via rate reconciliation, geographic mix, discrete items, and law changes before concluding it's structural.
How do I compare short-term borrowing costs across alternatives?
Every short-term funding source has a stated rate plus fees and conditions that change the effective cost.
How do you invest in consolidation-stage industries?
Invest in consolidators with strong balance sheets, scale advantages, M&A track record, and disciplined capital allocation.
How do copulas model dependence between asset returns beyond linear correlation?
Copulas separate the marginal distribution of each asset from the dependence structure that links them. Sklar's theorem says any joint distribution F(x,y) can be written as C(F_X(x), F_Y(y))...
How do I set up a pairs trading strategy using cointegration?
Test for cointegration via Engle-Granger + ADF. Enter at |z|>2, exit at |z|<0.5, stop at |z|>4. Beta-weight positions and re-estimate quarterly.
What is the asset swap spread and how is it used to assess relative value in fixed income?
The asset swap spread is the spread over SOFR earned by buying a bond and swapping its fixed coupons to floating. It measures credit compensation from the perspective of a SOFR-funded investor and is widely used for relative value analysis, especially in European markets and basis trading.
What is Market Value Added (MVA) and how do trends in MVA signal management effectiveness?
Market Value Added measures cumulative wealth creation as the difference between market value and total capital invested. Rising MVA with rising EVA signals effective management, while divergences between MVA and EVA trends reveal market expectations about future value creation.
How do you account for a contract modification under IFRS 15 / ASC 606?
Contract modifications are treated as a separate contract if the added goods/services are distinct and priced at standalone selling price. Otherwise, they modify the existing contract using either a prospective or cumulative catch-up approach.
How do you calculate and interpret accounts payable turnover and days payable outstanding?
Accounts payable turnover equals COGS (or purchases) divided by average accounts payable. Days payable outstanding is 365 divided by payable turnover. A higher DPO means the company takes longer to pay suppliers, which reduces the cash conversion cycle but may signal liquidity concerns if excessive.
How do you allocate revenue across multiple performance obligations in a single contract?
Allocating revenue across multiple performance obligations requires identifying each distinct promise, determining standalone selling prices (using direct observation, adjusted market assessment, or expected cost plus margin), then allocating the transaction price based on relative SSPs. Each obligation is then recognized at a point in time or over time depending on the pattern of control transfer.
How do you capitalize an operating lease and what changes on the financial statements?
Capitalizing a lease means recording a right-of-use asset and lease liability equal to the present value of future lease payments. This increases both assets and liabilities on the balance sheet, raises leverage ratios, and shifts expense recognition from a flat rental charge to depreciation plus interest.
What does R-squared really tell you, and what are its limitations?
R² measures the proportion of Y's variation explained by the model. While ranging from 0 to 1, a high R² can be misleading in cases of spurious correlation, overfitting, or non-linear relationships.
What is a swaption straddle and when would a trader use it?
Straddle = long payer + long receiver at same strike. Pure vol play - profits if rates move in either direction beyond breakevens.
What is a broken wing butterfly and why use asymmetric wings?
A broken wing butterfly has unequal distances between strikes, eliminating premium cost while introducing directional bias.
How does a Christmas tree spread work with skipped strikes?
A Christmas tree spread uses six options across three or four strikes with asymmetric quantities, creating a payoff resembling its namesake.
How does UMAP differ from t-SNE for dimensionality reduction?
UMAP is a faster, deterministic alternative to t-SNE that also preserves global structure, making it better for large datasets and downstream modeling.
How does a Charitable Lead Trust (CLT) work and how is it different from a CRT?
A CLT pays charity first then remainder to family, leveraging low §7520 rates to transfer wealth tax-free when trust returns exceed the assumed rate.
What adjustments should I make when computing ROIC?
A clean ROIC requires careful adjustments on both numerator (NOPAT) and denominator (invested capital) so the ratio reflects core operating performance.
How does relative equity market volatility adjust country risk estimates?
RSVM translates bond-market risk into equity-market risk. For Vietnam, within-country RSVM = 22%/12% = 1.83, so CRP = 275bps × 1.83 = 5.03%. Use 3-5 year rolling volatility and cross-check with long-run median...
How does Principal Components Analysis build a factor model?
PCA extracts top K principal components as statistical factors, maximizing variance but requiring post-hoc interpretation.
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