Reliability and Quality of Public Information
A valuation is only as trustworthy as the information it rests on. Quality of public information asks whether reported figures faithfully reflect the underlying economics or have been shaped by aggressive accounting and selective disclosure. Because accrual accounting requires estimates, reported earnings can be flattered while cash tells a steadier story. The analyst must weigh the reliability of each source, cross-check the financial statements against the cash-flow statement and the notes, and distinguish hard, audited facts from management’s optimistic narrative. This judgement is the first learning outcome of the course, since a model built on weak inputs produces a confident but wrong number.
Why it matters
Two firms can report the same profit, yet one earned it in cash while the other booked it through hopeful estimates that may never arrive. Garbage in, garbage out applies sharply to valuation. The simplest sniff test is to compare reported profit with operating cash flow. If earnings keep outrunning cash, ask why. Titman and Martin stress that pro-forma forecasts inherit the quality of the historical data they extend, so an analyst who skips the quality check builds an elaborate model on sand.
Formulas
Worked examples
Over three years a company’s net income climbs steadily while its operating cash flow stays flat and receivables swell. What does an information-quality review conclude?
The widening gap between rising net income and flat operating cash flow means profit is increasingly accrual based, and the jump in receivables suggests sales are booked faster than cash is collected. This is a red flag for low information quality, possibly aggressive revenue recognition. The analyst would discount the reported earnings, read the revenue policy in the notes, and treat operating cash flow as the more reliable input to any valuation. Accounting figures such as net income deserve more scepticism here than the cash measure.
Common mistakes
- ✗Audited financial statements are always an objective fact. Audits give reasonable assurance, not certainty, and accrual estimates still leave genuine room for judgement and bias.
- ✗Higher reported earnings always mean a stronger company. Earnings inflated by aggressive accruals are lower quality and tend not to persist, so the cash backing matters more than the headline.
- ✗Operating cash flow can be massaged as easily as earnings. Cash flow is harder to manage than accrual profit, which is exactly why the gap between them is a useful reliability check.
- ✗All public sources are equally reliable. Audited statements, management commentary and promotional press releases carry very different evidential weight and must be ranked accordingly.
Revision bullets
- •A valuation is only as good as the information behind it
- •Information quality asks whether figures reflect real economics
- •Accrual accounting leaves room to flatter reported earnings
- •High-quality earnings are backed by operating cash flow
- •Rank sources by reliability, from audited statements to promotional narrative
- •Distinguish accounting figures such as Net Income from cash measures
Quick check
The clearest red flag that reported earnings may be low quality is
Connected topics
Sources
- Titman & MartinTitman, S. & Martin, J. D. Valuation: The Art and Science of Corporate Investment Decisions. Pearson.Stresses that pro-forma forecasts inherit the quality of the historical accounting data they extend.
- Graham & DoddGraham, B. & Dodd, D. L. Security Analysis. McGraw-Hill.Early insistence on scrutinising the quality and conservatism of reported figures before relying on them.