See the score. See the drivers.Research any UK or US stock.
Explore Stock Scores
See the score. Understand what drives it.
Openbook turns financial and market data into clear factor scores, then shows the evidence behind every Reward and Risk rating.
1,400+ UK and 6,300+ US companies scored · Transparent factor drivers · Educational analytics, not investment advice
AstraZeneca plc
Healthcare · Large-cap · London Stock Exchange
12,456p+9.3% over 12 months
Financial metrics
Example inputsReward factors
0-100Overall ratings
At a glanceStrong profitability and growth support the Reward score, while the current Risk score remains comparatively low.
8 factors4 Reward, 4 Risk
4 factorsbehind every Reward score
2 ratingsReward and Risk
7,800+UK and US companies scored
A score should be a starting point, not a black box.
Openbook shows the metrics influencing each factor, the direction of their impact, and the plain-English context behind the result.
- See the evidence behind every factor score.
- Separate positive drivers from areas that need investigation.
- Use the score to decide where deeper research should begin.
Profitability score drivers
Example: AstraZenecaGross margin81.9%
Strong positive
Return on equity22.8%
Positive
FCF conversion85%
Positive
Net margin17.4%
Supportive
Margin trendStable
Neutral
Compare companies through one consistent lens.
The same definitions and score ranges are applied across the market, making it easier to compare very different companies without changing frameworks.
- Put Reward and Risk side-by-side.
- See where two companies differ at factor level.
- Compare signals without treating the score as a recommendation.
HSBC Holdings
Financials · HSBA · IllustrativeSee when the story starts to change.
A score is a current summary, not a permanent label. Tracking changes helps you spot when market behaviour or company fundamentals are moving in a new direction.
- Follow two years of weekly Reward and Risk history with Pro.
- Connect a score movement to the factor that changed.
- Investigate new information without reacting to every price move.
Score history
Two years of weekly scores · IllustrativeReward scoreRisk score
What changed: Reward improved as profitability and earnings growth strengthened. Risk stayed broadly stable despite short-term price volatility.
A faster route into better research.
Scores organise the first read of a company. They do not replace understanding the business, valuation, risks, or your own investment process.
Start with Reward and Risk
Get a quick, balanced view of potential reward signals and the risks that may deserve attention.
Open the factor breakdown
See whether Growth, Momentum, Profitability, or Valuation is driving the overall picture.
Research the underlying evidence
Use the visible metric drivers and company analysis to decide what needs deeper investigation.
Stock Scores, explained.
The Reward score combines four factors into a single 0-100 rating: Growth (40%), Momentum (25%), Profitability (20%) and Valuation (15%). There is no income or dividend-yield factor in it. It is designed to support comparison and further research, not to predict returns or recommend a trade.
The Risk score brings four risk factors together into a comparable 0-100 rating: Volatility, which carries the largest weight, Financial Solvency, Operational Quality and a Size factor. A higher score indicates more risk signals within the framework, but it is not a complete measure of every possible investment risk.
Openbook organises published financial and market data into the four Reward factors — Growth, Momentum, Profitability and Valuation — and the four Risk factors, normalises the inputs, and displays the resulting scores on a consistent 0-100 scale. The metric drivers are shown so you can inspect the result.
Scores can change as underlying company financials, estimates, or market data update. Different inputs move at different frequencies, so Openbook also shows the drivers behind a change.
Score history is a Pro feature. It covers two years of weekly Reward and Risk values, shown as a sparkline on the Reward and Risk tiles and as a full score-history chart.
London- and US-listed companies. Full Reward and Risk scores currently cover 1,488 UK-listed and 6,325 US-listed companies with enough reporting history. US coverage is still expanding, and where a company has insufficient data Openbook shows a blank rather than an estimate. London-listed ETFs carry their own Reward and Risk ratings, built from performance, cost, income and diversification rather than this company factor model, and funds carry a 1–7 risk level instead of a Reward score.
No. Scores are educational research tools, not personal recommendations. They help organise evidence and compare companies, but they do not account for your objectives, circumstances, or every relevant risk.
Go beyond the headline score. See the whole framework.
Explore Reward, Risk, factor scores, and their drivers across UK and US stocks.