Community Q&A
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How are mining restoration costs capitalized?
Initial ARO recognized at PV of expected restoration costs; capitalized to the mine asset. Accretion expense grows liability; depreciation expenses the asset.
How do I evaluate whether a public company's audit committee is effective?
Evaluate independence, financial expertise, meeting frequency, tenure, auditor oversight (non-audit fees below 30%), and restatement history.
What are the main red flags that indicate low earnings quality or aggressive accounting?
Low earnings quality red flags fall into four categories: revenue manipulation (receivables growing faster than sales, bill-and-hold), expense manipulation (changing depreciation assumptions, capitalizing operating costs), cash flow divergence (net income persistently exceeding CFO), and balance sheet warning signs (inventory buildup, serial acquisitions).
How do I identify binding constraints in a stress test?
Enumerate constraints, compute stressed ratios, rank by distance-to-breach. Smallest headroom wins. Recovery actions must target the binding constraint.
How should I define the loss threshold for a reverse stress test?
Thresholds are capital (CET1 to minimum), liquidity (LCR breach), or franchise (rating downgrade, counterparty loss). Typically the minimum across all three.
How do I run an effective Risk and Control Self-Assessment (RCSA) that doesn't become a check-the-box exercise?
Effective RCSAs use facilitated workshops, inherent/residual assessment, control testing, and action plans — not questionnaire check-boxes.
What are the three components of the bid-ask spread?
Three components: order processing (fixed), inventory (position risk), adverse selection (informed trading)...
How is the Amihud illiquidity ratio calculated and used?
Amihud ILLIQ = average |daily return| / daily dollar volume; simple robust liquidity measure...
How is net interest income (NII) sensitivity modeled?
NII sensitivity projects net interest income over a 12-month horizon under rate shocks and compares it to a base case.
What are the benefits of multilateral netting at a CCP?
Multilateral netting collapses gross bilateral exposures into net amounts through the CCP, delivering major collateral savings, Basel capital relief, and simpler operations.
What role does the clearing house play in futures markets?
The clearing house novates trades, becoming buyer to every seller and seller to every buyer. It manages margining, default waterfalls, multilateral netting, and reporting.
How do Greeks behave for knock-in and knock-out barrier options?
Barrier-option Greeks go wild near the barrier: gamma spikes, delta jumps, vega can flip sign. Desks shift internal barriers and use touch-option overlays.
How does a TAC tranche differ from a PAC, and what protection do you actually get?
A TAC targets a single PSA speed. It protects against contraction (fast prepay diverted to support) but offers no extension protection if speeds slow.
What are the tradeoffs between implicit and explicit finite difference schemes?
Explicit FD computes each new node directly from known adjacent nodes - simple, fast per step, but conditionally stable...
What are the SABR model parameters and how are they interpreted?
SABR has four parameters: alpha (ATM vol level), beta (elasticity/backbone), rho (correlation controlling skew), nu (vol of vol controlling smile curvature).
How does reverse stress testing differ from traditional stress testing?
Reverse stress testing starts from failure and solves backward for the scenarios causing it, exposing hidden vulnerabilities...
What is veta and how does it affect long-dated option valuation?
Veta is the derivative of vega with respect to time, describing how a position's vol exposure decays as time passes.
What is an Intentionally Defective Grantor Trust (IDGT) and why is it called 'defective'?
An IDGT is a trust designed to be 'defective' for income tax (grantor pays tax) while effective for estate tax — enabling installment sales and tax-free appreciation.
How do returns and allowances affect inventory reporting?
Under ASC 606 and IFRS 15, expected returns reduce revenue at the time of sale through a refund liability, and the estimated cost of returned goods is recognized as a right-of-return asset.
How do transfer pricing adjustments affect multinational financial statements?
Transfer pricing is cross-border intercompany pricing required to be at arm's length. Northwind's $94M IRS adjustment likely triggers ~$30-35M total cash tax, interest, and penalties. Check MAP and APA status...
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