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ALKS

Alkermes plc Healthcare As of 2026-07-31 Updated daily after market close

steady quality, premium valuation.

3 active signals
Top-quintile 6-month momentum Filed revenue acceleration EPS surprise beat
This page refreshes daily after the close. Add Alkermes plc to your watchlist to track signal changes on your next visit.
Valuation 27Quality 56Growth 45Momentum 91Risk / liquidity 71

Is Alkermes plc a buy? Fundamentals and valuation first

  • Quality is above average. Operating margin sits near the 51th percentile. TTM ROE is about 3.7%.

  • Valuation is expensive. TTM P/E is in the 97th percentile, above most peers.

  • Recent volatility is moderate. 60-day annualized volatility is near the 43th percentile. Average 20-day dollar volume is about $93.4M.

  • Signals are active now. Top-quintile 6-month momentum, Filed revenue acceleration, EPS surprise beat 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.

Top-quintile 6-month momentum

Active · now 86.72340425531915%

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

18 historical occurrences (since 2016-07-21)
Average forward return after Top-quintile 6-month momentum。20-day: Win 55.6%, Sample 18, Median +0.08%, Excess +0.02%, Beat mkt rate 44.4%；60-day: Win 29.4%, Sample 17, Median -3.53%, Excess -5.46%, Beat mkt rate 29.4%；120-day: Win 35.3%, Sample 17, Median -7.22%, Excess -11.71%, Beat mkt rate 23.5%

120 days after: historical avg -4.23%

20-day +0.95%
60-day -1.74%
120-day -4.23%
20-day
60-day
120-day
Win
55.6%
29.4%
35.3%
Sample
18
17
17
Median
+0.08%
-3.53%
-7.22%
Excess
+0.02%
-5.46%
-11.71%
Beat mkt rate
44.4%
29.4%
23.5%

Over 17 occurrences, 120-day forward avg declined 4.23%, lagged the market by 11.71 pts; win rate 35.3%.

Filed revenue acceleration

Active · now 10.785652788554545%

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

8 historical occurrences (since 2018-07-26)
Average forward return after Filed revenue acceleration。20-day: Win 28.6%, Sample 7, Median -3.36%, Excess -4.18%, Beat mkt rate 0%；60-day: Win 42.9%, Sample 7, Median -4.41%, Excess -1.53%, Beat mkt rate 57.1%；120-day: Win 28.6%, Sample 7, Median -7.85%, Excess -11.06%, Beat mkt rate 28.6%

120 days after: historical avg -7.48%

20-day -2.82%
60-day -0.48%
120-day -7.48%
20-day
60-day
120-day
Win
28.6%
42.9%
28.6%
Sample
7
7
7
Median
-3.36%
-4.41%
-7.85%
Excess
-4.18%
-1.53%
-11.06%
Beat mkt rate
0%
57.1%
28.6%

Over 7 occurrences, 120-day forward avg declined 7.48%, lagged the market by 11.06 pts; win rate 28.6%.

EPS surprise beat

Active · now 2650.0910746812383%

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

36 historical occurrences (since 2015-02-24)
Average forward return after EPS surprise beat。20-day: Win 50%, Sample 32, Median -1.41%, Excess -1.42%, Beat mkt rate 46.9%；60-day: Win 53.1%, Sample 32, Median +1.5%, Excess +0.62%, Beat mkt rate 53.1%；120-day: Win 45.2%, Sample 31, Median -1.53%, Excess -5.76%, Beat mkt rate 41.9%

120 days after: historical avg -0.11%

20-day -1.24%
60-day +2.61%
120-day -0.11%
20-day
60-day
120-day
Win
50%
53.1%
45.2%
Sample
32
32
31
Median
-1.41%
+1.5%
-1.53%
Excess
-1.42%
+0.62%
-5.76%
Beat mkt rate
46.9%
53.1%
41.9%

Over 31 occurrences, 120-day forward avg declined 0.11%, lagged the market by 5.76 pts; win rate 45.2%.

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 0Insufficient data
20-40 0Insufficient data
40-60 0Insufficient data
60-80 0Insufficient data
80-100 You are here0Insufficient data

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 127.91, placing it in the 99.7 own-history percentile, inside the 80-100 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
Insufficient data
(0d)
Insufficient data
(0d)
Now
Insufficient data
(0d)
60-day momentum down
Insufficient data
(0d)
Insufficient data
(0d)
Insufficient data
(0d)

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.

52-week adjusted-price high

Pending

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

13 times historically; 60-day forward avg +3.6%, win rate 38.5%, beating the market by +0.54 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.