SIC 3823 Industrial Instruments For Measurement, Display, and Control

AMETEK Inc. vs Keysight Technologies Inc.

WatchlistAME / KEYSPrices through Oct 22, 2026

Why these are rivals: #2 and #3 by market value ($57B vs $57B) with SEC SIC 3823 (Industrial Instruments For Measurement, Display, and Control).

Rivals, but right now the price gap does not have a measured habit of closing, so there is no paper idea, whatever the gap.

  • Mean reversion: ADF t-statistic of the spread: -1.79 (needs <= -2.873 (5% critical value))
Business leadership

AME is the larger business

Annual revenue reported to the SEC. Scale, not market share.

YearAMEKEYSLarger
2025$7.4B$5.4BAME
2024$6.9B$5.0BAME
2023$6.6B$5.5BAME
2022$6.2B$5.4BAME
2021$5.5B$4.9BAME
2020$4.5B$4.2BAME

AME led in every year with figures for both. Market value: AME $56.7B, KEYS $57.2B.

Stock leadership

KEYS is ahead now

Measured against the pair's own last 252 trading days.

KEYS leads AME by 0.27 standard deviations: +5.0% over its usual price ratio. 0 lead switches in the last year.

Price change3 mo6 mo12 mo
AME-1.3%+1.6%+26.8%
KEYS-2.2%-10.1%+86.2%
Relationship

Not a measured twin today

Only these tests can make a pair tradable on paper.

Pass
Aligned sessions: 2521 (needs >= 254)
Pass
Co-movement: daily return correlation, 252 sessions: 0.62 (needs >= 0.60)
Fail
Mean reversion: ADF t-statistic of the spread: -1.79 (needs <= -2.873 (5% critical value))
Pass
Speed: half-life of the spread, sessions: 51.38 (needs <= 63)
Data
Both stocks current
The twins over two years

Prices side by side, and the gap between them

AME AMETEK Inc. KEYS Keysight Technologies Inc.Price index, 100 = 2024-10-18. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
100150200250Oct 2024Oct 2025Oct 2026AME 141KEYS 195
Spread z-score: AME relative to KEYS, against the 252 sessions before each day. Above 0: AME ahead; below 0: KEYS ahead. Lines at +/-2 (idea) and +/-4 (stop).
-4stop-2idea0+2idea+4stopOct 2024Oct 2025Oct 2026
Data table (504 sessions)
DateAME indexKEYS indexzAhead
2026-10-22140.98194.76-0.27near the usual relationship
2026-10-21147.74213.41-0.52KEYS ahead
2026-10-20146.02208.92-0.48near the usual relationship
2026-10-19145.94209.98-0.51KEYS ahead
2026-10-16146.50207.07-0.42near the usual relationship
2026-10-15146.71213.87-0.59KEYS ahead
2026-10-14145.71223.58-0.87KEYS ahead
2026-10-13147.86231.46-0.99KEYS ahead
2026-10-12147.51236.14-1.11KEYS ahead
2026-10-09146.74239.29-1.22KEYS ahead
2026-10-08146.12234.24-1.14KEYS ahead
2026-10-07146.77238.46-1.22KEYS ahead
2026-10-06149.78242.59-1.21KEYS ahead
2026-10-05148.71240.18-1.21KEYS ahead
2026-10-02148.72240.48-1.22KEYS ahead
2026-10-01147.04233.75-1.14KEYS ahead
2026-09-30146.24227.60-1.04KEYS ahead
2026-09-29148.04225.48-0.93KEYS ahead
2026-09-28148.57224.91-0.91KEYS ahead
2026-09-25148.02226.41-0.97KEYS ahead
2026-09-24146.25223.53-0.97KEYS ahead
2026-09-23145.48220.92-0.95KEYS ahead
2026-09-22144.87217.14-0.89KEYS ahead
2026-09-21142.40213.84-0.90KEYS ahead
2026-09-18140.28209.44-0.88KEYS ahead
2026-09-17138.32207.21-0.90KEYS ahead
2026-09-16137.07201.34-0.81KEYS ahead
2026-09-15138.40195.91-0.62KEYS ahead
2026-09-14137.93196.91-0.67KEYS ahead
2026-09-11142.78211.72-0.88KEYS ahead
2026-09-10138.28203.59-0.85KEYS ahead
2026-09-09139.47206.95-0.89KEYS ahead
2026-09-08140.35208.45-0.90KEYS ahead
2026-09-04140.33204.57-0.82KEYS ahead
2026-09-03138.25201.70-0.83KEYS ahead
2026-09-02137.66201.05-0.84KEYS ahead
2026-09-01136.55199.61-0.85KEYS ahead
2026-08-31138.83201.75-0.83KEYS ahead
2026-08-28139.46200.04-0.77KEYS ahead
2026-08-27143.84203.70-0.71KEYS ahead
2026-08-26144.75201.23-0.63KEYS ahead
2026-08-25142.72200.14-0.67KEYS ahead
2026-08-24143.05194.22-0.52KEYS ahead
2026-08-21141.41197.64-0.67KEYS ahead
2026-08-20141.13197.88-0.69KEYS ahead
2026-08-19143.58199.72-0.66KEYS ahead
2026-08-18147.57213.19-0.85KEYS ahead
2026-08-17150.04225.79-1.06KEYS ahead
2026-08-14150.41223.71-1.01KEYS ahead
2026-08-13151.25221.23-0.94KEYS ahead
2026-08-12152.61221.63-0.91KEYS ahead
2026-08-11151.30214.88-0.81KEYS ahead
2026-08-10149.28209.70-0.76KEYS ahead
2026-08-07149.74213.17-0.83KEYS ahead
2026-08-06148.39210.67-0.82KEYS ahead
2026-08-05150.39210.08-0.75KEYS ahead
2026-08-04149.97213.34-0.85KEYS ahead
2026-08-03143.90201.24-0.77KEYS ahead
2026-07-31142.69199.49-0.78KEYS ahead
2026-07-30141.68195.49-0.72KEYS ahead
2026-07-29138.87185.51-0.57KEYS ahead
2026-07-28142.52190.79-0.58KEYS ahead
2026-07-27143.52196.11-0.69KEYS ahead
2026-07-24142.84199.23-0.79KEYS ahead
2026-07-23142.35203.27-0.91KEYS ahead
2026-07-22139.96204.77-1.04KEYS ahead
2026-07-21140.35205.13-1.04KEYS ahead
2026-07-20138.85196.39-0.89KEYS ahead
2026-07-17139.91197.50-0.89KEYS ahead
2026-07-16140.08195.54-0.84KEYS ahead
2026-07-15137.85201.76-1.08KEYS ahead
2026-07-14138.11203.64-1.12KEYS ahead
2026-07-13137.01200.58-1.10KEYS ahead
2026-07-10138.12201.34-1.08KEYS ahead
2026-07-09137.54201.42-1.12KEYS ahead
2026-07-08136.56198.34-1.08KEYS ahead
2026-07-07136.78193.26-0.96KEYS ahead
2026-07-06139.99199.89-1.02KEYS ahead
2026-07-02138.50196.22-0.99KEYS ahead
2026-07-01139.98209.82-1.27KEYS ahead
2026-06-30142.82218.86-1.39KEYS ahead
2026-06-29140.33212.65-1.35KEYS ahead
2026-06-26140.21205.48-1.19KEYS ahead
2026-06-25142.24225.11-1.58KEYS ahead
2026-06-24138.95219.63-1.59KEYS ahead
2026-06-23138.18220.43-1.65KEYS ahead
2026-06-22142.59233.41-1.80KEYS ahead
2026-06-18140.15227.36-1.77KEYS ahead
2026-06-17136.52219.26-1.74KEYS ahead
2026-06-16136.89219.00-1.74KEYS ahead
2026-06-15136.04223.16-1.89KEYS ahead
2026-06-12134.07219.24-1.89KEYS ahead
2026-06-11133.54212.59-1.78KEYS ahead
2026-06-10130.92202.56-1.65KEYS ahead
2026-06-09135.66207.21-1.60KEYS ahead
2026-06-08133.38207.31-1.70KEYS ahead
2026-06-05133.74206.21-1.68KEYS ahead
2026-06-04135.04214.51-1.85KEYS ahead
2026-06-03134.73219.12-2.00KEYS ahead
2026-06-02134.43216.67-1.98KEYS ahead
2026-06-01131.85206.31-1.84KEYS ahead
2026-05-29133.32211.52-1.94KEYS ahead
2026-05-28133.09212.02-1.98KEYS ahead
2026-05-27133.64217.35-2.12KEYS ahead
2026-05-26135.44222.41-2.20KEYS ahead
2026-05-22132.54216.67-2.21KEYS ahead
2026-05-21131.74211.03-2.13KEYS ahead
2026-05-20132.65213.87-2.19KEYS ahead
2026-05-19130.63215.14-2.34KEYS ahead
2026-05-18133.21212.87-2.20KEYS ahead
2026-05-15134.53218.20-2.32KEYS ahead
2026-05-14137.04226.04-2.46KEYS ahead
2026-05-13136.61225.81-2.51KEYS ahead
2026-05-12136.48226.10-2.57KEYS ahead
2026-05-11137.05229.05-2.67KEYS ahead
2026-05-08137.19225.26-2.61KEYS ahead
2026-05-07138.57221.98-2.50KEYS ahead
2026-05-06142.49229.25-2.56KEYS ahead
2026-05-05138.45222.53-2.60KEYS ahead
2026-05-04136.03219.66-2.68KEYS ahead
2026-05-01136.06220.33-2.75KEYS ahead
2026-04-30139.02218.76-2.60KEYS ahead
2026-04-29134.52209.73-2.59KEYS ahead
2026-04-28135.15207.75-2.53KEYS ahead
2026-04-27137.53212.97-2.63KEYS ahead
2026-04-24137.51216.92-2.80KEYS ahead
2026-04-23138.72216.65-2.79KEYS ahead
2026-04-22136.04211.92-2.82KEYS ahead
2026-04-21137.86212.13-2.79KEYS ahead
2026-04-20139.80209.53-2.64KEYS ahead
2026-04-17139.47209.03-2.69KEYS ahead
2026-04-16135.91206.29-2.84KEYS ahead
2026-04-15135.83203.34-2.78KEYS ahead
2026-04-14138.35206.60-2.82KEYS ahead
2026-04-13138.41207.01-2.89KEYS ahead
2026-04-10138.67202.68-2.76KEYS ahead
2026-04-09137.83201.90-2.83KEYS ahead
2026-04-08136.06199.02-2.87KEYS ahead
2026-04-07128.54187.94-2.93KEYS ahead
2026-04-06128.94183.13-2.74KEYS ahead
2026-04-02128.86182.08-2.75KEYS ahead
2026-04-01129.06181.21-2.75KEYS ahead
2026-03-31126.54176.54-2.74KEYS ahead
2026-03-30123.00168.43-2.63KEYS ahead
2026-03-27123.52174.47-2.96KEYS ahead
2026-03-26124.83175.72-2.99KEYS ahead
2026-03-25127.11183.26-3.29KEYS ahead
2026-03-24128.09186.67-3.48KEYS ahead
2026-03-23125.63180.66-3.45KEYS ahead
2026-03-20123.60173.51-3.30KEYS ahead
2026-03-19124.85181.44-3.75KEYS ahead
2026-03-18125.60177.63-3.58KEYS ahead
2026-03-17127.25179.67-3.67KEYS ahead
2026-03-16126.63178.77-3.78KEYS ahead
2026-03-13126.62174.92-3.65KEYS ahead
2026-03-12127.26176.79-3.82KEYS ahead
2026-03-11132.41177.72-3.53KEYS ahead
2026-03-10133.59178.52-3.57KEYS ahead
2026-03-09132.86176.32-3.59KEYS ahead
2026-03-06131.04170.32-3.42KEYS ahead
2026-03-05133.91177.87-3.80KEYS ahead
2026-03-04138.58188.13-4.23KEYS ahead
2026-03-03138.87189.15-4.44KEYS ahead
2026-03-02142.54195.85-4.77KEYS ahead
2026-02-27141.22192.14-4.85KEYS ahead
2026-02-26139.88191.33-5.21KEYS ahead
2026-02-25137.56188.92-5.62KEYS ahead
2026-02-24139.81188.48-5.66KEYS ahead
2026-02-23136.63153.17-2.48KEYS ahead
2026-02-20137.85152.26-2.24KEYS ahead
2026-02-19137.40149.76-2.01KEYS ahead
2026-02-18138.32149.94-1.92KEYS ahead
2026-02-17137.74146.54-1.60KEYS ahead
2026-02-13135.63145.99-1.82KEYS ahead
2026-02-12135.00143.47-1.60KEYS ahead
2026-02-11138.90148.81-1.76KEYS ahead
2026-02-10137.61146.92-1.71KEYS ahead
2026-02-09137.79147.50-1.77KEYS ahead
2026-02-06136.90144.39-1.50KEYS ahead
2026-02-05135.65138.49-0.90KEYS ahead
2026-02-04134.49138.54-1.07KEYS ahead
2026-02-03135.14142.02-1.44KEYS ahead
2026-02-02134.43139.58-1.23KEYS ahead
2026-01-30132.22135.25-0.96KEYS ahead
2026-01-29133.78138.27-1.16KEYS ahead
2026-01-28131.34138.48-1.54KEYS ahead
2026-01-27130.20136.18-1.40KEYS ahead
2026-01-26129.75134.02-1.17KEYS ahead
2026-01-23130.31133.13-0.98KEYS ahead
2026-01-22131.00134.87-1.12KEYS ahead
2026-01-21130.12135.47-1.35KEYS ahead
2026-01-20125.82132.52-1.58KEYS ahead
2026-01-16127.30133.92-1.57KEYS ahead
2026-01-15126.93134.10-1.67KEYS ahead
2026-01-14124.63130.92-1.57KEYS ahead
2026-01-13124.99130.85-1.52KEYS ahead
2026-01-12123.83130.50-1.66KEYS ahead
2026-01-09124.34129.60-1.46KEYS ahead
2026-01-08123.99129.21-1.46KEYS ahead
2026-01-07124.66132.74-1.91KEYS ahead
2026-01-06126.42133.57-1.77KEYS ahead
2026-01-05124.74130.55-1.60KEYS ahead
2026-01-02123.46129.16-1.61KEYS ahead
2025-12-31121.20127.03-1.66KEYS ahead
2025-12-30122.21128.80-1.79KEYS ahead
2025-12-29123.19129.32-1.73KEYS ahead
2025-12-26123.05128.82-1.69KEYS ahead
2025-12-24122.95128.37-1.65KEYS ahead
2025-12-23123.12128.32-1.63KEYS ahead
2025-12-22121.74127.36-1.73KEYS ahead
2025-12-19120.01126.58-1.92KEYS ahead
2025-12-18119.22124.75-1.77KEYS ahead
2025-12-17118.00124.12-1.90KEYS ahead
2025-12-16119.11128.08-2.41KEYS ahead
2025-12-15119.95129.72-2.57KEYS ahead
2025-12-12119.09130.55-2.93KEYS ahead
2025-12-11120.33133.88-3.34KEYS ahead
2025-12-10118.45133.03-3.66KEYS ahead
2025-12-09115.68131.58-4.10KEYS ahead
2025-12-08117.63131.05-3.72KEYS ahead
2025-12-05117.95131.60-3.88KEYS ahead
2025-12-04117.60130.71-3.91KEYS ahead
2025-12-03117.60129.17-3.71KEYS ahead
2025-12-02116.46125.91-3.37KEYS ahead
2025-12-01115.47123.50-3.15KEYS ahead
2025-11-28116.82123.76-2.95KEYS ahead
2025-11-26115.87122.66-2.99KEYS ahead
2025-11-25116.42122.20-2.80KEYS ahead
2025-11-24115.24111.08-0.35near the usual relationship
2025-11-21115.12107.98+0.41near the usual relationship
2025-11-20112.17106.08+0.16near the usual relationship
2025-11-19113.09109.17-0.40near the usual relationship
2025-11-18112.10109.24-0.65KEYS ahead
2025-11-17112.86109.73-0.60KEYS ahead
2025-11-14114.14111.95-0.82KEYS ahead
2025-11-13114.61111.52-0.63KEYS ahead
2025-11-12116.17115.07-1.09KEYS ahead
2025-11-11116.67114.07-0.77KEYS ahead
2025-11-10116.89114.73-0.87KEYS ahead
2025-11-07115.87113.08-0.73KEYS ahead
2025-11-06116.44115.69-1.19KEYS ahead
2025-11-05116.92116.19-1.21KEYS ahead
2025-11-04116.92111.97-0.29near the usual relationship
2025-11-03117.30116.40-1.17KEYS ahead
2025-10-31119.31114.39-0.31near the usual relationship
2025-10-30117.07109.64+0.27near the usual relationship
2025-10-29108.73106.58-0.86KEYS ahead
2025-10-28109.27106.31-0.67KEYS ahead
2025-10-27110.24104.89-0.12near the usual relationship
2025-10-24110.47105.95-0.31near the usual relationship
2025-10-23111.69105.27+0.12near the usual relationship
2025-10-22109.17102.96+0.11near the usual relationship
2025-10-21111.16104.62+0.17near the usual relationship
2025-10-20110.62103.00+0.44near the usual relationship
2025-10-17109.49101.40+0.57AME ahead
2025-10-16108.91101.54+0.42near the usual relationship
2025-10-15109.67103.06+0.23near the usual relationship
2025-10-14109.67103.06+0.23near the usual relationship
2025-10-13107.58102.13-0.01near the usual relationship
2025-10-10105.8399.71+0.18near the usual relationship
2025-10-09108.21106.97-0.99KEYS ahead
2025-10-08108.14107.65-1.16KEYS ahead
2025-10-07107.10106.33-1.10KEYS ahead
2025-10-06108.02108.37-1.36KEYS ahead
2025-10-03108.47108.38-1.27KEYS ahead
2025-10-02109.88109.51-1.21KEYS ahead
2025-10-01110.65108.22-0.75KEYS ahead
2025-09-30110.98109.36-0.94KEYS ahead
2025-09-29110.31108.33-0.86KEYS ahead
2025-09-26110.02108.37-0.94KEYS ahead
2025-09-25108.85107.74-1.06KEYS ahead
2025-09-24109.90109.04-1.13KEYS ahead
2025-09-23110.20111.22-1.57KEYS ahead
2025-09-22111.25111.17-1.33KEYS ahead
2025-09-19110.90111.38-1.47KEYS ahead
2025-09-18111.39110.79-1.23KEYS ahead
2025-09-17109.95108.10-0.95KEYS ahead
2025-09-16110.55107.58-0.69KEYS ahead
2025-09-15111.90107.38-0.34near the usual relationship
2025-09-12112.12106.62-0.11near the usual relationship
2025-09-11113.36107.76-0.11near the usual relationship
2025-09-10110.63106.41-0.41near the usual relationship
2025-09-09110.67105.72-0.23near the usual relationship
2025-09-08111.38105.84-0.10near the usual relationship
2025-09-05110.66104.97-0.06near the usual relationship
2025-09-04110.90104.38+0.14near the usual relationship
2025-09-03108.83103.36-0.09near the usual relationship
2025-09-02109.10102.40+0.21near the usual relationship
2025-08-29109.09102.18+0.27near the usual relationship
2025-08-28110.23104.11+0.06near the usual relationship
2025-08-27110.12103.17+0.27near the usual relationship
2025-08-26110.26102.78+0.40near the usual relationship
2025-08-25109.55103.36+0.10near the usual relationship
2025-08-22110.36104.33+0.05near the usual relationship
2025-08-21108.29100.40+0.53AME ahead
2025-08-20108.2399.10+0.83AME ahead
2025-08-19109.33102.21+0.30near the usual relationship
2025-08-18107.80102.80-0.19near the usual relationship
2025-08-15107.06102.16-0.21near the usual relationship
2025-08-14109.08102.83+0.06near the usual relationship
2025-08-13110.34106.42-0.47near the usual relationship
2025-08-12109.17104.46-0.30near the usual relationship
2025-08-11107.74100.96+0.14near the usual relationship
2025-08-08107.49103.13-0.37near the usual relationship
2025-08-07107.58100.81+0.12near the usual relationship
2025-08-06109.49100.50+0.55AME ahead
2025-08-05109.18100.86+0.41near the usual relationship
2025-08-04108.91101.11+0.30near the usual relationship
2025-08-01107.6599.21+0.44near the usual relationship
2025-07-31109.12102.48+0.04near the usual relationship
2025-07-30104.34104.75-1.32KEYS ahead
2025-07-29105.64104.41-1.01KEYS ahead
2025-07-28105.57104.16-0.98KEYS ahead
2025-07-25106.31104.06-0.83KEYS ahead
2025-07-24106.09103.54-0.78KEYS ahead
2025-07-23107.01105.03-0.89KEYS ahead
2025-07-22105.79103.33-0.81KEYS ahead
2025-07-21105.13101.91-0.66KEYS ahead
2025-07-18105.38101.56-0.56KEYS ahead
2025-07-17106.08101.94-0.50KEYS ahead
2025-07-16104.52100.19-0.46near the usual relationship
2025-07-15104.16101.26-0.74KEYS ahead
2025-07-14105.29102.12-0.70KEYS ahead
2025-07-11106.83102.34-0.47near the usual relationship
2025-07-10107.11103.06-0.56KEYS ahead
2025-07-09107.60102.47-0.36near the usual relationship
2025-07-08107.04102.23-0.42near the usual relationship
2025-07-07107.66101.56-0.19near the usual relationship
2025-07-03108.73104.44-0.54KEYS ahead
2025-07-02107.43103.48-0.60KEYS ahead
2025-07-01108.06102.83-0.38near the usual relationship
2025-06-30106.82102.44-0.53KEYS ahead
2025-06-27106.57102.74-0.64KEYS ahead
2025-06-26106.15103.12-0.79KEYS ahead
2025-06-25105.08102.61-0.89KEYS ahead
2025-06-24105.81102.99-0.84KEYS ahead
2025-06-23104.65100.70-0.63KEYS ahead
2025-06-20104.3099.63-0.50KEYS ahead
2025-06-18104.94100.12-0.48near the usual relationship
2025-06-17103.63100.34-0.76KEYS ahead
2025-06-16105.45101.45-0.65KEYS ahead
2025-06-13104.4698.90-0.36near the usual relationship
2025-06-12106.24101.28-0.50KEYS ahead
2025-06-11106.79101.59-0.46near the usual relationship
2025-06-10106.18102.29-0.69KEYS ahead
2025-06-09105.45101.63-0.71KEYS ahead
2025-06-06105.28101.25-0.68KEYS ahead
2025-06-05104.4599.92-0.59KEYS ahead
2025-06-04104.61100.69-0.70KEYS ahead
2025-06-03104.91100.53-0.63KEYS ahead
2025-06-02104.0999.01-0.51KEYS ahead
2025-05-30105.5198.18-0.12near the usual relationship
2025-05-29106.2899.19-0.18near the usual relationship
2025-05-28105.6599.12-0.27near the usual relationship
2025-05-27106.74101.44-0.50KEYS ahead
2025-05-23104.86100.05-0.57KEYS ahead
2025-05-22105.40101.12-0.67KEYS ahead
2025-05-21104.89101.58-0.83KEYS ahead
2025-05-20106.73101.78-0.55KEYS ahead
2025-05-19107.37101.76-0.45near the usual relationship
2025-05-16107.88103.41-0.64KEYS ahead
2025-05-15106.38103.02-0.82KEYS ahead
2025-05-14105.88102.82-0.88KEYS ahead
2025-05-13106.55103.19-0.83KEYS ahead
2025-05-12105.89101.68-0.68KEYS ahead
2025-05-09101.3996.36-0.50KEYS ahead
2025-05-08101.2895.18-0.31near the usual relationship
2025-05-07100.1893.50-0.19near the usual relationship
2025-05-0699.0991.62-0.02near the usual relationship
2025-05-05100.5192.09+0.14near the usual relationship
2025-05-02100.4092.85-0.03near the usual relationship
2025-05-0198.7490.99+0.03near the usual relationship
2025-04-30100.1190.90+0.29near the usual relationship
2025-04-2999.0690.37+0.20near the usual relationship
2025-04-2898.1689.99+0.11near the usual relationship
2025-04-2598.4090.03+0.14near the usual relationship
2025-04-2498.7289.90+0.22near the usual relationship
2025-04-2395.7485.83+0.49near the usual relationship
2025-04-2294.2484.47+0.49near the usual relationship
2025-04-2191.6582.45+0.42near the usual relationship
2025-04-1793.1684.69+0.24near the usual relationship
2025-04-1693.5884.27+0.41near the usual relationship
2025-04-1594.5785.58+0.32near the usual relationship
2025-04-1495.2585.27+0.51AME ahead
2025-04-1193.8383.52+0.61AME ahead
2025-04-1092.9383.41+0.47near the usual relationship
2025-04-0995.0489.09-0.27near the usual relationship
2025-04-0889.3880.00+0.52AME ahead
2025-04-0790.5181.21+0.48near the usual relationship
2025-04-0490.1279.41+0.80AME ahead
2025-04-0395.3384.86+0.62AME ahead
2025-04-02101.9694.85-0.14near the usual relationship
2025-04-01101.4793.80-0.03near the usual relationship
2025-03-31101.6293.64+0.02near the usual relationship
2025-03-28100.5893.99-0.22near the usual relationship
2025-03-27103.6497.00-0.25near the usual relationship
2025-03-26104.4397.78-0.27near the usual relationship
2025-03-25106.0899.07-0.22near the usual relationship
2025-03-24105.5699.23-0.34near the usual relationship
2025-03-21103.0296.63-0.31near the usual relationship
2025-03-20103.8596.99-0.24near the usual relationship
2025-03-19104.5397.20-0.17near the usual relationship
2025-03-18103.9495.49+0.04near the usual relationship
2025-03-17105.4596.43+0.11near the usual relationship
2025-03-14103.9895.05+0.12near the usual relationship
2025-03-13102.0792.63+0.24near the usual relationship
2025-03-12104.6193.74+0.45near the usual relationship
2025-03-11105.5893.68+0.63AME ahead
2025-03-10105.8995.59+0.33near the usual relationship
2025-03-07108.6197.46+0.44near the usual relationship
2025-03-06108.7096.61+0.60AME ahead
2025-03-05109.2397.83+0.47near the usual relationship
2025-03-04108.2295.72+0.69AME ahead
2025-03-03110.1297.46+0.68AME ahead
2025-02-28111.7599.74+0.54AME ahead
2025-02-27110.5898.91+0.50AME ahead
2025-02-26111.09100.26+0.35near the usual relationship
2025-02-25110.36107.64-0.99KEYS ahead
2025-02-24109.67108.45-1.23KEYS ahead
2025-02-21109.91109.69-1.40KEYS ahead
2025-02-20111.44115.60-2.09KEYS ahead
2025-02-19111.49115.73-2.12KEYS ahead
2025-02-18108.83115.47-2.55KEYS ahead
2025-02-14108.35114.70-2.54KEYS ahead
2025-02-13108.87112.10-2.05KEYS ahead
2025-02-12109.50111.12-1.79KEYS ahead
2025-02-11109.40110.38-1.68KEYS ahead
2025-02-10109.78110.83-1.70KEYS ahead
2025-02-07108.92108.98-1.54KEYS ahead
2025-02-06107.97111.03-2.04KEYS ahead
2025-02-05106.39110.98-2.32KEYS ahead
2025-02-04106.55110.02-2.15KEYS ahead
2025-02-03108.70110.23-1.83KEYS ahead
2025-01-31108.95111.50-2.00KEYS ahead
2025-01-30109.80106.61-1.02KEYS ahead
2025-01-29107.74105.24-1.13KEYS ahead
2025-01-28107.96104.98-1.04KEYS ahead
2025-01-27109.18105.44-0.91KEYS ahead
2025-01-24110.97108.08-1.06KEYS ahead
2025-01-23112.41108.27-0.85KEYS ahead
2025-01-22111.39107.98-0.96KEYS ahead
2025-01-21109.03106.89-1.16KEYS ahead
2025-01-17106.69103.59-0.98KEYS ahead
2025-01-16106.77103.21-0.90KEYS ahead
2025-01-15106.29103.37-1.01KEYS ahead
2025-01-14105.76102.69-0.98KEYS ahead
2025-01-13104.19100.73-0.90KEYS ahead
2025-01-10103.98100.85-0.95KEYS ahead
2025-01-08105.34103.09-1.11KEYS ahead
2025-01-07105.48103.86-1.22KEYS ahead
2025-01-06105.92103.31-1.05KEYS ahead
2025-01-03106.00102.41-0.87KEYS ahead
2025-01-02105.27100.56-0.67KEYS ahead
2024-12-31106.41100.43-0.45near the usual relationship
2024-12-30106.69100.76-0.45near the usual relationship
2024-12-27107.70101.85-0.46near the usual relationship
2024-12-26108.45102.93-0.52KEYS ahead
2024-12-24108.65102.44-0.40near the usual relationship
2024-12-23107.48101.73-0.45near the usual relationship
2024-12-20108.24102.04-0.38near the usual relationship
2024-12-19107.5099.94-0.13near the usual relationship
2024-12-18106.71100.16-0.29near the usual relationship
2024-12-17110.22103.97-0.36near the usual relationship
2024-12-16111.79106.83-0.57KEYS ahead
2024-12-13110.61104.10-0.31near the usual relationship
2024-12-12111.25105.25-0.40near the usual relationship
2024-12-11111.37104.88-0.32near the usual relationship
2024-12-10111.33105.60-0.43near the usual relationship
2024-12-09112.10107.86-0.66KEYS ahead
2024-12-06113.07107.36-0.45near the usual relationship
2024-12-05114.50106.05-0.04near the usual relationship
2024-12-04115.11107.70-0.21near the usual relationship
2024-12-03114.72106.91-0.14near the usual relationship
2024-12-02115.44107.28-0.10near the usual relationship
2024-11-29114.75106.81-0.12near the usual relationship
2024-11-27115.17105.41+0.15near the usual relationship
2024-11-26116.30107.48+0.00near the usual relationship
2024-11-25116.36107.33+0.03near the usual relationship
2024-11-22116.52106.46+0.18near the usual relationship
2024-11-21115.56106.55+0.03near the usual relationship
2024-11-20114.13103.46+0.31near the usual relationship
2024-11-19114.2095.11+1.70AME ahead
2024-11-18114.0794.67+1.78AME ahead
2024-11-15113.9993.39+2.01AME ahead
2024-11-14114.3796.08+1.61AME ahead
2024-11-13115.3698.34+1.37AME ahead
2024-11-12114.52100.79+0.83AME ahead
2024-11-11113.09102.37+0.36near the usual relationship
2024-11-08112.70103.42+0.14near the usual relationship
2024-11-07111.54103.27-0.01near the usual relationship
2024-11-06112.35101.19+0.45near the usual relationship
2024-11-05107.4596.84+0.44near the usual relationship
2024-11-04106.2196.01+0.39near the usual relationship
2024-11-01105.3394.75+0.47near the usual relationship
2024-10-31108.2393.16+1.21AME ahead
2024-10-3099.7195.02-0.49near the usual relationship
2024-10-2998.8797.07-0.99KEYS ahead
2024-10-2899.2097.36-0.99KEYS ahead
2024-10-2598.5697.52-1.14KEYS ahead
2024-10-2498.3496.12-0.94KEYS ahead
2024-10-2398.3995.87-0.89KEYS ahead
2024-10-2299.4097.13-0.95KEYS ahead
2024-10-2199.9898.67-1.12KEYS ahead
2024-10-18100.00100.00-1.35KEYS ahead

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Oct 31, 2024 (AME +8.5%, KEYS -1.9%); Nov 20, 2024 (AME -0.1%, KEYS +8.8%); Feb 26, 2025 (AME +0.7%, KEYS -6.9%); Nov 25, 2025 (AME +1.0%, KEYS +10.0%); Feb 24, 2026 (AME +2.3%, KEYS +23.1%). Upcoming earnings: AME Oct 29, 2026 (not-supplied); AME Nov 3, 2026 (pre-market).

Paired trades

The shared paper book and the replay, kept apart

Forward paper record

No paper position on this pair yet.

Historical simulation (a diagnostic, same rules)

No simulated trade through Oct 20, 2026: the pair rarely passed every test while 2 standard deviations apart.

Per $10,000 a leg. A replay on today's companies cannot prove an edge.

The companies

AME and KEYS at a glance

AME AMETEK Inc.

Listing
NYSE · SEC CIK 1037868
Industry
Industrial Machinery/Components · SIC 3823 Industrial Instruments For Measurement, Display, and Control
Market value
$56.7B
Price history
2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

KEYS Keysight Technologies Inc.

Listing
NYSE · SEC CIK 1601046
Industry
Industrial Machinery/Components · SIC 3823 Industrial Instruments For Measurement, Display, and Control
Market value
$57.2B
Price history
2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

Daily prices: Nasdaq.com. Filings and industry codes: SEC EDGAR. Earnings dates: Nasdaq earnings calendar.

Related
All pairs →
PairStatusAhead nowIndustry
DHR / AMEWatchlistDHR by 0.39 sdSIC 3823 Industrial Instruments For Measurement, Display, and Control
DHR / KEYSWatchlistneitherSIC 3823 Industrial Instruments For Measurement, Display, and Control

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Explore the private beta

Paper only: hypothetical paired positions with modelled costs. No broker, no orders, no real money. A historical simulation is a diagnostic, not proof of an edge. Not investment advice.