The Analyst’s Course · Forensic Accounting
The Accrual Anomaly — Sloan's Discovery
The finding
Sloan (1996, The Accounting Review) split firms by the size of their accruals ((NI − CFO) ÷ assets) and tracked subsequent returns. The highest-accrual decile underperformed the lowest by roughly 10 percentage points per year over the following decades of out-of-sample tests. The mechanism: investors anchor on headline earnings, overextending growth in income that lacks cash confirmation — then revise when the cash never arrives. The accruals ratio in the ClearView panel computes exactly this quantity.
Why it persists
If it were a simple arbitrage it would have been traded away by 2000. It persists because acting on it means underweighting "exciting" stories in favor of dull cash-rich firms, and because high-accrual firms are disproportionately young, fast-growing, and headline-grabbing. It also persists because accruals are partially a growth signal, not only a manipulation signal — the anomaly is strongest where accruals are persistent, not one-off (working capital) rather than depreciation timing.
Using it without overusing it
The practical read: treat the accruals ratio as a filter, not a signal. A single year of positive accruals during heavy investment is normal (inventory build for a launch). What correlates with underperformance is persistence — three or more consecutive years of accruals >5% of assets with flat cash conversion. The panel's earnings-quality score blends cash conversion, accruals, and FCF conversion precisely to dampen single-year noise.
Accruals = (NI − CFO) ÷ Total Assets
Sloan's accruals — Sloan (1996): the top-accrual decile underperformed the bottom decile by ~10%/yr. The ratio sits at the core of the panel's EQ score.
HP–Autonomy, 2011 — $8.8B of paper
HP paid $11.1B for Autonomy, whose revenue growth was the story. Post-acquisition, HP wrote off $8.8B, alleging revenue had been recognized through circular transactions with resellers — revenue with no ultimate end-customer cash. CFO consistently trailed reported revenue in the quarters before the deal. The accruals ratio was screaming while the growth story held the headlines. The lesson is not that HP was dumb — it is that the divergence was public, in the filings, for anyone who read the cash flow statement first.
What you'll practise
Sloan's anomaly says high-accrual firms tend to…
3 graded checkpoints · certification exam at the end of the track
Sources
Altman (1968); Beneish (1999); Sloan (1996); company 10-K filings via SEC EDGAR
Learn content is for education only — not individualized financial advice, a recommendation, or a solicitation to buy or sell any security. Options involve substantial risk. Examples are simplified and historical patterns never guarantee future results.