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AON

Aon plc Financial Services As of 2026-07-31 Updated daily after market close

strong quality, premium valuation.

1 active signal
52-week adjusted-price high
This page refreshes daily after the close. Add Aon plc to your watchlist to track signal changes on your next visit.
Valuation 34Quality 84Growth 67Momentum 61Risk / liquidity 85

Is Aon plc a buy? Fundamentals and valuation first

  • Quality is top-tier. Operating margin ranks above roughly 82% of the liquid US common-stock universe. TTM ROE is about 40.1%.

  • Valuation is expensive. TTM P/E is in the 73th percentile, above most peers.

  • Recent volatility is comparatively low. 60-day annualized volatility is in the 27th percentile. Average 20-day dollar volume is about $478.6M.

  • Signals are active now. 52-week adjusted-price high currently holds; the tables below show what followed in this stock’s own history.

Historical evidence

Signals active now

Each active condition is tested against this stock’s own history and benchmarked versus the S&P 500.

52-week adjusted-price high

Active

Adjusted close first reaches a 252-trading-day high; repeated hits within 20 days count once.

23 historical occurrences (since 2017-02-15)
Average forward return after 52-week adjusted-price high。20-day: Win 68.2%, Sample 22, Median +2.18%, Excess +1.46%, Beat mkt rate 72.7%；60-day: Win 68.2%, Sample 22, Median +3.16%, Excess +2.25%, Beat mkt rate 54.5%；120-day: Win 68.2%, Sample 22, Median +7.79%, Excess +2.02%, Beat mkt rate 59.1%

120 days after: historical avg +6.99%

20-day +2.2%
60-day +3.56%
120-day +6.99%
20-day
60-day
120-day
Win
68.2%
68.2%
68.2%
Sample
22
22
22
Median
+2.18%
+3.16%
+7.79%
Excess
+1.46%
+2.25%
+2.02%
Beat mkt rate
72.7%
54.5%
59.1%

Over 22 occurrences, 120-day forward avg gained 6.99%, beat the market by 2.02 pts; win rate 68.2%.

Valuation regime and forward returns

Daily TTM P/E is converted into an expanding own-history percentile, then grouped into five valuation regimes. Forward returns use adjusted prices over the next 240 trading days.

PE percentile bandSample days240-day avg returnMedianWin rateAvg excess (vs index)
0-20 You are here178+17.1% +18.8% 96.1% +0.3%
20-40 409+15.9% +11.4% 75.3% -7.4%
40-60 347+14.8% +13.5% 77.8% -5.5%
60-80 310+1.7% -1.9% 46.1% -8.3%
80-100 139+3.6% +3.4% 62.6% +14.3%

Quarterly EPS is aligned by SEC filing date before it is forward-filled to daily prices. The expanding percentile uses only information available up to each day.

Current TTM P/E is about 19.79, placing it in the 5.1 own-history percentile, inside the 0-20 bucket.

Valuation × momentum analogs

Each historical day is grouped by own-history P/E tercile and 60-day momentum direction, then tested for the next 120-trading-day adjusted return.

Valuation
Momentum
Cheap (own-history bottom third)
Middle
Expensive (own-history top third)
60-day momentum up
Now
+5.1%
Win rate 71.6% Excess -5.2%
194d
+6.3%
Win rate 64.1% Excess -2.5%
549d
-2.4%
Win rate 44.1% Excess +3.4%
177d
60-day momentum down
+11.2%
Win rate 71.5% Excess -2.4%
242d
+0.9%
Win rate 37.7% Excess -12.9%
215d
+6.5%
Win rate 73% Excess +9.7%
126d

Currently in “Cheap (own-history bottom third) × 60-day momentum up”: across 194 historical days, 120-day forward avg gained 5.1%, win rate 71.6%, lagged the market by 5.2%.

Days = trading days in this bucket; returns use adjusted prices, ex-costs. 60-day momentum: direction of this stock's price over the past 60 trading days.

Market-wide momentum baseline

Across 97,878 liquid US common-stock samples, top-quintile 6-month momentum was followed by an average 60-trading-day return of +6.26%, a 58.3% positive-return rate, and +2.90 percentage points of average excess return versus the S&P 500.

Baseline: weekly samples since 2016 where a liquid US common stock ranked in the top quintile by 126-trading-day momentum. Forward return is 60 trading days; excess return is versus S&P 500 (^GSPC).

Signals not active now

Inactive signals still show the stock-specific historical forward-return distribution for context.

Top-quintile 6-month momentum

Pending

The stock ranks in the top 20% of the liquid US common-stock universe by 126-day adjusted return.

16 times historically; 60-day forward avg +2.84%, win rate 56.2%, beating the market by -1.3 pts on average.

Filed revenue acceleration

Pending

TTM revenue growth is at least 10% and improved versus the prior filed quarter; event date is the SEC filing date.

EPS surprise beat

Pending

Reported EPS beat consensus estimate by at least 5%; event date is the earnings-surprise timestamp.

11 times historically; 60-day forward avg +6.84%, win rate 80%, beating the market by +3.58 pts on average.

Method and limits

  • Returns use us_price:adj_close, adjusted for splits and dividends where available.
  • Excess returns use world_index:^GSPC as the S&P 500 benchmark proxy.
  • Quarterly fundamentals are aligned to SEC filing dates before daily valuation studies.
  • The promoted universe starts from active NYSE/NASDAQ common stocks, then applies price and dollar-volume gates.
  • Snapshot-only tables such as analyst consensus, DCF, us_ratios, and us_key_metrics are intentionally excluded from historical evidence.
  • Overlapping event windows are descriptive distributions, not independent samples.

This page is for historical data analysis and education only. It is not investment advice. Backtests and historical return distributions do not predict future performance; evaluate risk independently before trading.