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QLYS Qualys, Inc.

Technology

207.60 -16.52 -7.37% Close 11/2
Since 2024-12-02 +44.0%
Open
224.15
High
224.15
Low
207.13
Prev close
224.12
Volume
835.1K
Amplitude
7.59%
P/E
38.8
P/B
13.8
Revenue YoY (TTM)
+10.5%
52W 74.51 235.55

Is Qualys, Inc. a buy? Fundamentals and valuation first

As of 2026-10-30

Quality: Strong, Growth: Good, Momentum: Strong, Risk / liquidity: Good; Valuation: Pricey.

Valuation Pricey Free-cash-flow yield is Good, but Price / book is Expensive.
TTM P/E 38.78 76th percentile Pricey
Price / book 13.79 94th percentile Expensive
Free-cash-flow yield (%) 4.05 63th percentile Good
US Stock Backtest in Python: Price-to-Book Ratio StrategyQuality Factor Investing: A US Quality Value Backtest
Quality Strong All 3 indicators are Top.
ROE, TTM (%) 36.74 89th percentile Top
Operating margin, TTM (%) 34.61 86th percentile Top
FCF margin, TTM (%) 44.6 91th percentile Top
Quality Factor Investing: A US Quality Value Backtest
Growth Good All 2 indicators are Good.
Revenue growth, TTM YoY (%) 10.51 62th percentile Good
Diluted EPS growth, TTM YoY (%) 15.37 64th percentile Good
Momentum Strong All 2 indicators are Top.
60-day return (%) 23.29 93th percentile Top
240-day return (%) 56.11 89th percentile Top
Momentum Trading Strategy: A 12-1 Momentum Backtest
Risk / liquidity Good 20-day dollar volume is Top, but 60-day annualized volatility is Average.
20-day dollar volume 158,223,127 91th percentile Top
60-day annualized volatility (%) 59.55 64th percentile Average
Factor Investing Explained: 10 Classic Factors in US Stocks

Qualys, Inc. (QLYS) today

3 quant signals active · As of 2026-10-30

Win rate and excess are historical post-trigger stats vs the market. Click a signal for its full definition and samples; history does not predict future results.

FinLab Studio

From Qualys, Inc. to every stock like it

AI finds several complementary traits of Qualys, Inc. across different dimensions, combines them into a multifactor strategy, and backtests it against the market.

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Qualys, Inc. (QLYS) peers and tracking

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Qualys, Inc. (QLYS) quant signal backtests

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.

21 historical occurrences (since 2017-05-02)

Average forward return after 52-week adjusted-price high

20-day: Win 55%, Sample 20, Median +1.36%, Excess +0.1%, Beat mkt rate 60%

60-day: Win 70%, Sample 20, Median +12.32%, Excess +1.95%, Beat mkt rate 60%

120-day: Win 61.1%, Sample 18, Median +4.03%, Excess +3.4%, Beat mkt rate 44.4%

120 days after: historical avg +10.49%

20-day -0.32%
60-day +4.08%
120-day +10.49%
20-day
60-day
120-day
Win
55%
70%
61.1%
Sample
20
20
18
Median
+1.36%
+12.32%
+4.03%
Excess
+0.1%
+1.95%
+3.4%
Beat mkt rate
60%
60%
44.4%

Over 18 occurrences, 120-day forward avg gained 10.49%, beat the market by 3.4 pts; win rate 61.1%.

Top-quintile 6-month momentum

Active · now 99.58%

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

Momentum Trading Strategy: A 12-1 Momentum Backtest
17 historical occurrences (since 2016-08-09)

Average forward return after Top-quintile 6-month momentum

20-day: Win 52.9%, Sample 17, Median +2.85%, Excess +2.59%, Beat mkt rate 52.9%

60-day: Win 52.9%, Sample 17, Median +3.93%, Excess +5.38%, Beat mkt rate 64.7%

120-day: Win 50%, Sample 16, Median +0.09%, Excess +1.28%, Beat mkt rate 43.8%

120 days after: historical avg +5.54%

20-day +3.1%
60-day +5.29%
120-day +5.54%
20-day
60-day
120-day
Win
52.9%
52.9%
50%
Sample
17
17
16
Median
+2.85%
+3.93%
+0.09%
Excess
+2.59%
+5.38%
+1.28%
Beat mkt rate
52.9%
64.7%
43.8%

Over 16 occurrences, 120-day forward avg gained 5.54%, beat the market by 1.28 pts; win rate 50%.

Filed revenue acceleration

Active · now 10.51%

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

12 historical occurrences (since 2018-05-08)

Average forward return after Filed revenue acceleration

20-day: Win 83.3%, Sample 12, Median +4.39%, Excess +7.67%, Beat mkt rate 75%

60-day: Win 75%, Sample 12, Median +6%, Excess +10.36%, Beat mkt rate 66.7%

120-day: Win 54.5%, Sample 11, Median +0.4%, Excess +15.27%, Beat mkt rate 63.6%

120 days after: historical avg +15.98%

20-day +8.52%
60-day +9.99%
120-day +15.98%
20-day
60-day
120-day
Win
83.3%
75%
54.5%
Sample
12
12
11
Median
+4.39%
+6%
+0.4%
Excess
+7.67%
+10.36%
+15.27%
Beat mkt rate
75%
66.7%
63.6%

Over 11 occurrences, 120-day forward avg gained 15.98%, beat the market by 15.27 pts; win rate 54.5%.

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)
0-20 774+12.4% +9% 65.8% -6.5%
20-40 You are here241-2.7% -3.1% 42.7% -24.5%
40-60 179+4.3% +0.6% 53.1% -11.4%
60-80 157+4.5% -2.9% 43.3% +6%
80-100 65-9.6% -11% 13.8% +3.3%

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 38.78, placing it in the 25.5 own-history percentile, inside the 20-40 bucket.

More history: Valuation × momentum analogs, Market-wide momentum baseline, Signals not active now

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
+5.8%
Win rate 56.9% Excess -3.6%
413d
-8%
Win rate 27.1% Excess -19.9%
240d
+4%
Win rate 60.9% Excess +11.5%
161d
60-day momentum down
+9.8%
Win rate 60.4% Excess -0.1%
632d
+24.5%
Win rate 90% Excess +17.4%
50d
+11.3%
Win rate 73.3% Excess +18.9%
30d

Currently in “Cheap (own-history bottom third) × 60-day momentum up”: across 413 historical days, 120-day forward avg gained 5.8%, win rate 56.9%, lagged the market by 3.6%.

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 99,493 liquid US common-stock samples, top-quintile 6-month momentum was followed by an average 60-trading-day return of +6.42%, a 58.4% positive-return rate, and +3.08 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.

EPS surprise beat

Pending

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

PEAD: Post-Earnings Announcement Drift Backtest

45 times historically; 60-day forward avg +7.79%, win rate 68.3%, beating the market by +4.28 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.