Strategy #0000000064 · Accounting quality and equity factors
Accrual anomaly and earnings quality
Estimate each basket’s accrual ratio as net income minus operating cash flow, scaled by average assets.
The accrual anomaly separates earnings into cash-flow and accrual components: high-accrual earnings may be less persistent, while prices may not fully distinguish them. Measures include total, operating and abnormal accruals and cash-flow quality. Definitions, sources and sample treatments are not interchangeable.
Accrual definitions differ; filing dates, missing values, industries and delistings affect the sort.
Three ways in
Understand the story. Then inspect the risk.
Start with a familiar situation, check the payoff, then test how the numbers change.
The idea · in two minutes
What accounting signal and assumed return spread result from low-accrual longs versus high-accrual shorts?
Iris compares two company baskets: the low-accrual group has net income 100 and operating cash flow 95; the high-accrual group has 100 and 70, with average assets of 1,000 in both.
The simulator calculates accruals divided by average assets, then applies user-entered long and short-basket returns and deducts costs.
This is not a financial-statement factor backtest. Implementation needs point-in-time filing dates, a consistent accrual definition, industry and outlier controls, borrow costs and delisting returns.
- Low-accrual basket accrual / average assetsEnter net income, cash flow, average assets and assumed returns for low/high-accrual baskets to inspect ratios and net spread.
- High-accrual basket accrual / average assetsNo company filings, timestamps, factor sorts, delistings, borrow data or historical returns; basket returns are manual assumptions.
- Assumed long-short return after costsIllustrative expiry outcome.
Illustrative research examples only. They are not live signals or a recommendation.
The mechanics · payoff and exposure
Accruals=(NI-CFO)/AvgAssets,\quad A_{low}=100(Accruals_{low}),\quad R_{LS}=R_{low}-R_{high}-Cost
NI is net income, CFO operating cash flow and AvgAssets average total assets. The example reports percentages and assumes equal long/short weights.
Greeks: the directional intuition
- 會計口徑
- Measures sensitivity to implied volatility.
- 資料可用時間
- Measures sensitivity to implied volatility.
- 空頭與退市
- Measures sensitivity to implied volatility.
Accruals=(NI-CFO)/AvgAssets,\quad A_{low}=100(Accruals_{low}),\quad R_{LS}=R_{low}-R_{high}-Cost
Practical context · published observations
Accrual anomaly and earnings quality: read the record with its caveats.
The chart uses the published figures or explicitly labelled study inputs below. A historical index or model replay is not the same as an investor’s realised account return.
沒有公司財報、申報時點、因子排序、退市、借券或歷史報酬；分組報酬均為手動假設。 Source ↗ · Methodology ↗
Change assumptions and inspect the scenario
Inputs illustrate the strategy mechanics; they are not live quotes, forecasts or investment advice.
Variants · same family, different risk levers
Related methods use different signals and assumptions.
Compare the rule, exposure and implementation limits.
| Related strategy | Relationship | What changes | New cost or risk |
|---|---|---|---|
| Abnormal accruals | Expected-accrual model | Uses industry or Jones-model residuals. | Model estimation and discretion risk. |
| Accrual reliability | Component quality | Assesses persistence by receivables, inventory and other components. | Accounting components have different noise. |
| Book-tax differences | Tax versus reported income | Uses the book/tax income wedge as a quality signal. | Tax rules and one-off items complicate interpretation. |
No company filings, timestamps, factor sorts, delistings, borrow data or historical returns; basket returns are manual assumptions.
Read beyond the summary
References
Primary sources and research used to describe the strategy and its limits.