Other Pharmaceuticals

Cencora Inc. vs McKesson Corporation

WatchlistCOR / MCKPrices through Oct 22, 2026

Why these are rivals: #1 and #2 by market value ($118B vs $65B) in Nasdaq's "Other Pharmaceuticals" industry; SEC SIC 5122 / 5122 (same major group); #1 and #2 by market value ($118B vs $65B) with SEC SIC 5122 (Wholesale-Drugs, Proprietaries & Druggists' Sundries).

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: -1.48 (needs <= -2.873 (5% critical value))
Business leadership

MCK is the larger business

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

YearCORMCKLarger
2025$321.3B$403.4BMCK
2024$294.0B$359.1BMCK
2023$262.2B$309.0BMCK
2022$238.6B$276.7BMCK
2021$214.0B$264.0BMCK
2020$189.9B$238.2BMCK

MCK led in every year with figures for both. Market value: COR $64.9B, MCK $117.8B.

Stock leadership

MCK is ahead now

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

MCK leads COR by 1.79 standard deviations: +13.6% over its usual price ratio. 1 lead switch in the last year.

Price change3 mo6 mo12 mo
COR+9.2%+8.7%+2.9%
MCK+20.4%+21.1%+28.6%
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: 0.71 (needs >= 0.60)
Fail
Mean reversion: ADF t-statistic of the spread: -1.48 (needs <= -2.873 (5% critical value))
Pass
Speed: half-life of the spread, sessions: 33.98 (needs <= 63)
Data
Both stocks current
The twins over two years

Prices side by side, and the gap between them

COR Cencora Inc. MCK McKesson CorporationPrice index, 100 = 2024-10-18. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
100150200Oct 2024Oct 2025Oct 2026COR 143MCK 199
Spread z-score: COR relative to MCK, against the 252 sessions before each day. Above 0: COR ahead; below 0: MCK ahead. Lines at +/-2 (idea) and +/-4 (stop).
-4stop-2idea0+2idea+4stopOct 2024Oct 2025Oct 2026
Data table (504 sessions)
DateCOR indexMCK indexzAhead
2026-10-22142.56198.81-1.79MCK ahead
2026-10-21143.38199.43-1.77MCK ahead
2026-10-20144.58202.30-1.88MCK ahead
2026-10-19143.20198.43-1.76MCK ahead
2026-10-16143.59197.34-1.66MCK ahead
2026-10-15143.79196.12-1.56MCK ahead
2026-10-14141.59191.79-1.48MCK ahead
2026-10-13139.03188.90-1.53MCK ahead
2026-10-12136.91187.70-1.68MCK ahead
2026-10-09136.40184.38-1.49MCK ahead
2026-10-08135.35182.69-1.48MCK ahead
2026-10-07133.62178.78-1.36MCK ahead
2026-10-06133.25181.00-1.60MCK ahead
2026-10-05132.64179.78-1.58MCK ahead
2026-10-02130.16177.20-1.66MCK ahead
2026-10-01130.47176.52-1.59MCK ahead
2026-09-30126.46167.68-1.30MCK ahead
2026-09-29129.55169.84-1.14MCK ahead
2026-09-28127.96168.16-1.19MCK ahead
2026-09-25129.27170.20-1.23MCK ahead
2026-09-24130.51170.73-1.14MCK ahead
2026-09-23131.53172.92-1.22MCK ahead
2026-09-22132.43175.03-1.31MCK ahead
2026-09-21133.30174.09-1.15MCK ahead
2026-09-18130.05171.77-1.32MCK ahead
2026-09-17130.32172.74-1.39MCK ahead
2026-09-16134.14174.25-1.10MCK ahead
2026-09-15136.16176.66-1.09MCK ahead
2026-09-14137.40178.90-1.15MCK ahead
2026-09-11135.44173.12-0.88MCK ahead
2026-09-10135.18172.99-0.91MCK ahead
2026-09-09136.17175.11-0.98MCK ahead
2026-09-08136.75174.61-0.89MCK ahead
2026-09-04139.39178.32-0.92MCK ahead
2026-09-03142.03180.95-0.87MCK ahead
2026-09-02141.67181.61-0.97MCK ahead
2026-09-01139.40178.08-0.92MCK ahead
2026-08-31136.29173.86-0.91MCK ahead
2026-08-28135.63175.45-1.12MCK ahead
2026-08-27135.29174.88-1.12MCK ahead
2026-08-26138.06176.09-0.93MCK ahead
2026-08-25138.17177.75-1.06MCK ahead
2026-08-24136.36171.60-0.75MCK ahead
2026-08-21133.95168.68-0.77MCK ahead
2026-08-20132.54164.72-0.58MCK ahead
2026-08-19133.56167.66-0.73MCK ahead
2026-08-18133.15170.71-1.04MCK ahead
2026-08-17131.63168.88-1.06MCK ahead
2026-08-14132.17170.66-1.16MCK ahead
2026-08-13130.57168.24-1.14MCK ahead
2026-08-12132.32172.57-1.32MCK ahead
2026-08-11140.62177.10-0.83MCK ahead
2026-08-10136.88172.79-0.87MCK ahead
2026-08-07134.97170.77-0.91MCK ahead
2026-08-06136.89171.13-0.75MCK ahead
2026-08-05133.61172.28-1.19MCK ahead
2026-08-04129.00163.09-0.92MCK ahead
2026-08-03129.88162.44-0.77MCK ahead
2026-07-31131.13168.14-1.14MCK ahead
2026-07-30131.50169.97-1.26MCK ahead
2026-07-29134.19174.50-1.36MCK ahead
2026-07-28134.60174.69-1.34MCK ahead
2026-07-27131.05166.94-1.08MCK ahead
2026-07-24130.52165.14-0.99MCK ahead
2026-07-23128.48161.92-0.94MCK ahead
2026-07-22126.60159.87-0.98MCK ahead
2026-07-21127.65162.77-1.13MCK ahead
2026-07-20128.03163.29-1.14MCK ahead
2026-07-17129.68165.24-1.14MCK ahead
2026-07-16129.72165.22-1.14MCK ahead
2026-07-15124.91156.39-0.90MCK ahead
2026-07-14127.31157.77-0.75MCK ahead
2026-07-13128.93159.52-0.73MCK ahead
2026-07-10127.80158.28-0.76MCK ahead
2026-07-09127.39155.70-0.57MCK ahead
2026-07-08130.38160.77-0.70MCK ahead
2026-07-07128.24158.55-0.75MCK ahead
2026-07-06125.74154.01-0.61MCK ahead
2026-07-02124.88154.42-0.76MCK ahead
2026-07-01121.48150.84-0.82MCK ahead
2026-06-30119.18148.39-0.87MCK ahead
2026-06-29118.62146.80-0.79MCK ahead
2026-06-26120.51149.94-0.87MCK ahead
2026-06-25120.86150.00-0.84MCK ahead
2026-06-24119.81150.54-1.03MCK ahead
2026-06-23118.39150.02-1.16MCK ahead
2026-06-22114.26146.28-1.32MCK ahead
2026-06-18114.49147.41-1.42MCK ahead
2026-06-17116.70153.14-1.72MCK ahead
2026-06-16118.54154.25-1.61MCK ahead
2026-06-15118.53153.14-1.52MCK ahead
2026-06-12118.63153.98-1.60MCK ahead
2026-06-11118.55154.59-1.69MCK ahead
2026-06-10118.45155.23-1.78MCK ahead
2026-06-09117.75154.01-1.77MCK ahead
2026-06-08115.44150.56-1.74MCK ahead
2026-06-05115.84152.33-1.89MCK ahead
2026-06-04113.85148.65-1.80MCK ahead
2026-06-03111.04145.23-1.85MCK ahead
2026-06-02111.54144.69-1.74MCK ahead
2026-06-01111.48144.31-1.72MCK ahead
2026-05-29113.45145.81-1.62MCK ahead
2026-05-28112.75148.66-2.06MCK ahead
2026-05-27112.46148.56-2.12MCK ahead
2026-05-26114.05148.15-1.86MCK ahead
2026-05-22115.79150.45-1.89MCK ahead
2026-05-21111.80150.53-2.52MCK ahead
2026-05-20111.51148.21-2.34MCK ahead
2026-05-19112.10149.62-2.45MCK ahead
2026-05-18110.29152.39-3.11MCK ahead
2026-05-15108.54149.37-3.11MCK ahead
2026-05-14109.97146.75-2.61MCK ahead
2026-05-13107.69144.77-2.79MCK ahead
2026-05-12109.90144.28-2.40MCK ahead
2026-05-11109.38142.41-2.27MCK ahead
2026-05-08109.96144.56-2.49MCK ahead
2026-05-07107.68148.22-3.46MCK ahead
2026-05-06106.45146.05-3.49MCK ahead
2026-05-05128.84157.31-1.18MCK ahead
2026-05-04127.89158.65-1.51MCK ahead
2026-05-01128.04159.86-1.66MCK ahead
2026-04-30129.73160.09-1.44MCK ahead
2026-04-29131.17161.55-1.41MCK ahead
2026-04-28131.40163.98-1.69MCK ahead
2026-04-27130.63162.67-1.67MCK ahead
2026-04-24129.80162.63-1.81MCK ahead
2026-04-23131.15164.20-1.82MCK ahead
2026-04-22129.85162.85-1.87MCK ahead
2026-04-21131.57165.41-1.95MCK ahead
2026-04-20136.04168.70-1.67MCK ahead
2026-04-17137.96170.15-1.57MCK ahead
2026-04-16135.77170.33-1.96MCK ahead
2026-04-15133.76169.56-2.21MCK ahead
2026-04-14134.73169.44-2.06MCK ahead
2026-04-13134.41169.79-2.19MCK ahead
2026-04-10135.12169.99-2.13MCK ahead
2026-04-09135.81171.53-2.25MCK ahead
2026-04-08136.85171.09-2.04MCK ahead
2026-04-07135.15168.23-1.97MCK ahead
2026-04-06135.18168.26-1.99MCK ahead
2026-04-02136.80173.66-2.48MCK ahead
2026-04-01133.79171.31-2.73MCK ahead
2026-03-31132.31169.95-2.86MCK ahead
2026-03-30130.54168.93-3.11MCK ahead
2026-03-27131.60168.92-2.98MCK ahead
2026-03-26133.95169.59-2.68MCK ahead
2026-03-25136.92172.77-2.64MCK ahead
2026-03-24137.84173.20-2.57MCK ahead
2026-03-23135.03172.23-3.02MCK ahead
2026-03-20137.69173.97-2.82MCK ahead
2026-03-19139.72176.54-2.88MCK ahead
2026-03-18136.96180.74-4.20MCK ahead
2026-03-17140.97184.97-4.18MCK ahead
2026-03-16145.68185.24-3.35MCK ahead
2026-03-13147.39184.78-2.99MCK ahead
2026-03-12148.53185.46-2.92MCK ahead
2026-03-11147.54183.48-2.84MCK ahead
2026-03-10148.33182.38-2.52MCK ahead
2026-03-09152.38185.03-2.15MCK ahead
2026-03-06150.98180.53-1.67MCK ahead
2026-03-05151.32182.90-2.02MCK ahead
2026-03-04155.07192.21-2.85MCK ahead
2026-03-03156.44195.54-3.18MCK ahead
2026-03-02156.95194.61-2.98MCK ahead
2026-02-27156.74193.91-2.96MCK ahead
2026-02-26154.42191.37-3.07MCK ahead
2026-02-25152.90189.17-3.08MCK ahead
2026-02-24153.47188.01-2.79MCK ahead
2026-02-23154.16186.42-2.36MCK ahead
2026-02-20152.08186.07-2.83MCK ahead
2026-02-19151.25184.04-2.67MCK ahead
2026-02-18151.72185.97-3.00MCK ahead
2026-02-17151.61185.87-3.07MCK ahead
2026-02-13151.97183.57-2.55MCK ahead
2026-02-12147.86179.89-2.87MCK ahead
2026-02-11154.02187.19-2.89MCK ahead
2026-02-10151.62183.66-2.81MCK ahead
2026-02-09153.00188.99-3.70MCK ahead
2026-02-06151.31186.31-3.68MCK ahead
2026-02-05148.32188.10-5.20MCK ahead
2026-02-04138.98161.43-1.32MCK ahead
2026-02-03152.36167.15+1.21COR ahead
2026-02-02153.12166.24+1.67COR ahead
2026-01-30151.30163.24+1.96COR ahead
2026-01-29148.30161.49+1.56COR ahead
2026-01-28147.64162.34+1.13COR ahead
2026-01-27150.00163.82+1.44COR ahead
2026-01-26149.73162.34+1.78COR ahead
2026-01-23148.88161.08+1.89COR ahead
2026-01-22148.45160.46+1.95COR ahead
2026-01-21148.15161.68+1.53COR ahead
2026-01-20147.69161.40+1.48COR ahead
2026-01-16149.45165.05+1.00COR ahead
2026-01-15149.67165.78+0.87COR ahead
2026-01-14147.38163.82+0.72COR ahead
2026-01-13145.68161.82+0.75COR ahead
2026-01-12144.11162.14+0.17near the usual relationship
2026-01-09141.38160.26-0.17near the usual relationship
2026-01-08141.41159.98-0.07near the usual relationship
2026-01-07143.37161.81+0.05near the usual relationship
2026-01-06145.80162.32+0.67COR ahead
2026-01-05143.59162.00+0.08near the usual relationship
2026-01-02142.72161.71-0.10near the usual relationship
2025-12-31142.25161.09-0.07near the usual relationship
2025-12-30143.22162.48-0.14near the usual relationship
2025-12-29143.31163.08-0.26near the usual relationship
2025-12-26143.64162.66-0.04near the usual relationship
2025-12-24143.19162.30-0.07near the usual relationship
2025-12-23143.45162.16+0.05near the usual relationship
2025-12-22143.21160.72+0.36near the usual relationship
2025-12-19143.59161.09+0.38near the usual relationship
2025-12-18143.44159.18+0.83COR ahead
2025-12-17144.45158.39+1.34COR ahead
2025-12-16143.92159.07+1.02COR ahead
2025-12-15147.55161.63+1.41COR ahead
2025-12-12145.73159.82+1.37COR ahead
2025-12-11145.10160.16+1.11COR ahead
2025-12-10143.53159.68+0.78COR ahead
2025-12-09142.06156.13+1.31COR ahead
2025-12-08142.28156.70+1.23COR ahead
2025-12-05143.06158.80+0.90COR ahead
2025-12-04142.20159.89+0.37near the usual relationship
2025-12-03141.22158.16+0.54COR ahead
2025-12-02147.69162.94+1.18COR ahead
2025-12-01151.67168.28+0.95COR ahead
2025-11-28155.38173.04+0.80COR ahead
2025-11-26155.22173.55+0.64COR ahead
2025-11-25157.84174.64+1.08COR ahead
2025-11-24156.77170.90+1.70COR ahead
2025-11-21154.02170.08+1.18COR ahead
2025-11-20152.50166.82+1.58COR ahead
2025-11-19151.93167.41+1.29COR ahead
2025-11-18152.31169.04+1.01COR ahead
2025-11-17153.73167.96+1.66COR ahead
2025-11-14152.44165.38+1.98COR ahead
2025-11-13153.92166.19+2.20COR ahead
2025-11-12153.06165.11+2.28COR ahead
2025-11-11153.76168.19+1.71COR ahead
2025-11-10153.58168.77+1.47COR ahead
2025-11-07151.92167.32+1.34COR ahead
2025-11-06151.72168.62+0.95COR ahead
2025-11-05149.10165.80+0.89COR ahead
2025-11-04145.11165.29-0.06near the usual relationship
2025-11-03143.59161.09+0.48near the usual relationship
2025-10-31142.28159.34+0.51COR ahead
2025-10-30143.71162.12+0.23near the usual relationship
2025-10-29140.32158.61+0.15near the usual relationship
2025-10-28141.36158.01+0.49near the usual relationship
2025-10-27141.54159.36+0.23near the usual relationship
2025-10-24140.13157.44+0.28near the usual relationship
2025-10-23138.38155.73+0.21near the usual relationship
2025-10-22139.33156.25+0.29near the usual relationship
2025-10-21138.49154.61+0.40near the usual relationship
2025-10-20137.89154.72+0.24near the usual relationship
2025-10-17136.75154.36+0.06near the usual relationship
2025-10-16134.52152.29-0.02near the usual relationship
2025-10-15134.61155.52-0.58MCK ahead
2025-10-14133.90153.55-0.38near the usual relationship
2025-10-13133.51151.12-0.04near the usual relationship
2025-10-10133.93149.95+0.24near the usual relationship
2025-10-09132.30148.85+0.10near the usual relationship
2025-10-08130.82148.42-0.13near the usual relationship
2025-10-07130.02147.32-0.10near the usual relationship
2025-10-06128.59145.58-0.09near the usual relationship
2025-10-03127.52144.95-0.20near the usual relationship
2025-10-02129.96149.00-0.42near the usual relationship
2025-10-01131.31150.25-0.38near the usual relationship
2025-09-30131.63151.72-0.56MCK ahead
2025-09-29129.75149.61-0.57MCK ahead
2025-09-26129.30149.36-0.62MCK ahead
2025-09-25125.86144.64-0.51MCK ahead
2025-09-24129.87149.37-0.53MCK ahead
2025-09-23127.36145.58-0.40near the usual relationship
2025-09-22121.63136.88-0.05near the usual relationship
2025-09-19122.15137.14+0.00near the usual relationship
2025-09-18122.50135.53+0.31near the usual relationship
2025-09-17121.75135.95+0.10near the usual relationship
2025-09-16122.14136.18+0.12near the usual relationship
2025-09-15122.73138.04-0.08near the usual relationship
2025-09-12127.41139.71+0.45near the usual relationship
2025-09-11127.53141.36+0.21near the usual relationship
2025-09-10124.80138.70+0.15near the usual relationship
2025-09-09125.79138.56+0.32near the usual relationship
2025-09-08125.45136.88+0.52COR ahead
2025-09-05123.19135.00+0.43near the usual relationship
2025-09-04123.28135.79+0.32near the usual relationship
2025-09-03124.31135.67+0.51COR ahead
2025-09-02124.18135.82+0.47near the usual relationship
2025-08-29122.82134.85+0.39near the usual relationship
2025-08-28122.09133.74+0.44near the usual relationship
2025-08-27122.38134.23+0.41near the usual relationship
2025-08-26122.01133.64+0.43near the usual relationship
2025-08-25121.43133.33+0.38near the usual relationship
2025-08-22123.24135.40+0.37near the usual relationship
2025-08-21127.71138.65+0.61COR ahead
2025-08-20127.91138.05+0.73COR ahead
2025-08-19124.13132.94+0.89COR ahead
2025-08-18122.29131.81+0.76COR ahead
2025-08-15123.33132.18+0.88COR ahead
2025-08-14124.19132.33+1.00COR ahead
2025-08-13122.58130.24+1.06COR ahead
2025-08-12121.78129.42+1.05COR ahead
2025-08-11122.44132.12+0.75COR ahead
2025-08-08120.09131.30+0.48near the usual relationship
2025-08-07117.26130.25+0.17near the usual relationship
2025-08-06119.52138.21-0.65MCK ahead
2025-08-05123.13139.33-0.20near the usual relationship
2025-08-04123.67139.62-0.15near the usual relationship
2025-08-01121.45137.23-0.16near the usual relationship
2025-07-31120.49136.20-0.16near the usual relationship
2025-07-30122.90140.40-0.36near the usual relationship
2025-07-29122.04139.86-0.41near the usual relationship
2025-07-28120.54138.70-0.49near the usual relationship
2025-07-25122.29139.79-0.35near the usual relationship
2025-07-24122.33139.47-0.29near the usual relationship
2025-07-23123.59140.22-0.19near the usual relationship
2025-07-22123.39139.33-0.10near the usual relationship
2025-07-21123.27139.67-0.16near the usual relationship
2025-07-18123.35139.40-0.10near the usual relationship
2025-07-17123.99139.49-0.01near the usual relationship
2025-07-16125.44140.56+0.07near the usual relationship
2025-07-15124.10139.60+0.00near the usual relationship
2025-07-14125.11140.53+0.04near the usual relationship
2025-07-11124.34139.35+0.08near the usual relationship
2025-07-10125.22140.33+0.09near the usual relationship
2025-07-09126.42142.82-0.05near the usual relationship
2025-07-08125.52142.21-0.10near the usual relationship
2025-07-07127.41144.41-0.10near the usual relationship
2025-07-03124.77141.26-0.07near the usual relationship
2025-07-02122.63138.54-0.03near the usual relationship
2025-07-01124.39142.92-0.33near the usual relationship
2025-06-30126.29143.91-0.18near the usual relationship
2025-06-27126.11142.53-0.03near the usual relationship
2025-06-26124.91141.79-0.10near the usual relationship
2025-06-25123.12141.09-0.27near the usual relationship
2025-06-24123.88141.56-0.22near the usual relationship
2025-06-23123.46141.76-0.30near the usual relationship
2025-06-20123.68141.58-0.24near the usual relationship
2025-06-18124.98143.15-0.25near the usual relationship
2025-06-17123.49142.26-0.35near the usual relationship
2025-06-16123.19141.31-0.27near the usual relationship
2025-06-13124.47143.01-0.30near the usual relationship
2025-06-12124.26143.52-0.39near the usual relationship
2025-06-11120.73140.96-0.58MCK ahead
2025-06-10119.72138.42-0.41near the usual relationship
2025-06-09119.59139.08-0.51MCK ahead
2025-06-06121.69140.00-0.32near the usual relationship
2025-06-05121.47139.75-0.32near the usual relationship
2025-06-04121.73139.33-0.22near the usual relationship
2025-06-03122.79140.39-0.20near the usual relationship
2025-06-02123.01141.74-0.34near the usual relationship
2025-05-30122.66141.30-0.33near the usual relationship
2025-05-29122.43140.00-0.20near the usual relationship
2025-05-28121.80139.85-0.27near the usual relationship
2025-05-27123.57141.47-0.21near the usual relationship
2025-05-23123.13140.63-0.17near the usual relationship
2025-05-22122.19139.56-0.16near the usual relationship
2025-05-21122.71141.15-0.28near the usual relationship
2025-05-20123.38141.24-0.20near the usual relationship
2025-05-19123.25142.66-0.39near the usual relationship
2025-05-16122.23142.22-0.48near the usual relationship
2025-05-15120.44138.80-0.32near the usual relationship
2025-05-14117.57133.99-0.12near the usual relationship
2025-05-13117.51135.07-0.27near the usual relationship
2025-05-12117.25135.02-0.30near the usual relationship
2025-05-09119.19136.19-0.17near the usual relationship
2025-05-08119.52135.56-0.04near the usual relationship
2025-05-07128.28141.86+0.40near the usual relationship
2025-05-06122.48139.64-0.13near the usual relationship
2025-05-05122.97138.85+0.03near the usual relationship
2025-05-02123.03139.12+0.00near the usual relationship
2025-05-01122.32138.80-0.06near the usual relationship
2025-04-30123.27139.98-0.08near the usual relationship
2025-04-29122.21138.90-0.10near the usual relationship
2025-04-28121.19137.42-0.07near the usual relationship
2025-04-25120.41136.49-0.07near the usual relationship
2025-04-24118.94135.20-0.12near the usual relationship
2025-04-23119.91135.95-0.08near the usual relationship
2025-04-22120.57136.52-0.07near the usual relationship
2025-04-21118.42134.03-0.07near the usual relationship
2025-04-17120.77136.90-0.10near the usual relationship
2025-04-16119.80136.43-0.18near the usual relationship
2025-04-15119.84136.07-0.14near the usual relationship
2025-04-14119.74136.29-0.18near the usual relationship
2025-04-11119.75135.38-0.08near the usual relationship
2025-04-10117.57133.41-0.14near the usual relationship
2025-04-09115.36131.92-0.28near the usual relationship
2025-04-08115.71128.21+0.24near the usual relationship
2025-04-07115.64130.00-0.01near the usual relationship
2025-04-04117.25134.15-0.30near the usual relationship
2025-04-03121.87140.80-0.46near the usual relationship
2025-04-02117.72136.20-0.49near the usual relationship
2025-04-01116.84132.30-0.15near the usual relationship
2025-03-31117.13132.17-0.10near the usual relationship
2025-03-28115.91131.20-0.15near the usual relationship
2025-03-27115.39130.73-0.17near the usual relationship
2025-03-26114.30130.21-0.27near the usual relationship
2025-03-25113.08130.32-0.45near the usual relationship
2025-03-24112.66129.78-0.45near the usual relationship
2025-03-21112.64129.84-0.47near the usual relationship
2025-03-20112.81130.86-0.57MCK ahead
2025-03-19111.95130.36-0.64MCK ahead
2025-03-18111.25129.93-0.69MCK ahead
2025-03-17109.91128.68-0.73MCK ahead
2025-03-14108.69127.74-0.80MCK ahead
2025-03-13107.83126.41-0.77MCK ahead
2025-03-12106.98125.82-0.82MCK ahead
2025-03-11109.79128.28-0.73MCK ahead
2025-03-10110.16129.39-0.82MCK ahead
2025-03-07107.22126.52-0.89MCK ahead
2025-03-06106.88126.02-0.89MCK ahead
2025-03-05105.94125.61-0.98MCK ahead
2025-03-04106.68126.41-0.98MCK ahead
2025-03-03107.56126.58-0.88MCK ahead
2025-02-28106.79125.74-0.90MCK ahead
2025-02-27104.88121.93-0.71MCK ahead
2025-02-26105.57122.47-0.68MCK ahead
2025-02-25105.52123.15-0.78MCK ahead
2025-02-24102.87118.96-0.65MCK ahead
2025-02-21101.68117.38-0.63MCK ahead
2025-02-20102.54118.52-0.65MCK ahead
2025-02-19103.37118.37-0.52MCK ahead
2025-02-18101.69117.72-0.69MCK ahead
2025-02-14102.19116.59-0.48near the usual relationship
2025-02-13102.99118.32-0.58MCK ahead
2025-02-12102.59116.85-0.46near the usual relationship
2025-02-11103.93119.88-0.66MCK ahead
2025-02-10103.77118.50-0.51MCK ahead
2025-02-07104.40116.99-0.24near the usual relationship
2025-02-06103.66117.78-0.45near the usual relationship
2025-02-05106.68119.19-0.21near the usual relationship
2025-02-04105.96118.48-0.23near the usual relationship
2025-02-03107.16117.80+0.02near the usual relationship
2025-01-31107.07116.80+0.12near the usual relationship
2025-01-30108.86118.74+0.12near the usual relationship
2025-01-29107.80118.46+0.01near the usual relationship
2025-01-28107.44118.41-0.03near the usual relationship
2025-01-27107.35118.70-0.08near the usual relationship
2025-01-24104.65116.18-0.14near the usual relationship
2025-01-23104.43117.28-0.31near the usual relationship
2025-01-22104.01114.76-0.06near the usual relationship
2025-01-21103.22115.10-0.22near the usual relationship
2025-01-17101.95116.37-0.56MCK ahead
2025-01-16101.46116.89-0.70MCK ahead
2025-01-15100.10114.58-0.61MCK ahead
2025-01-14101.10116.60-0.72MCK ahead
2025-01-1399.44114.90-0.76MCK ahead
2025-01-1099.48114.25-0.67MCK ahead
2025-01-08100.17115.92-0.79MCK ahead
2025-01-0798.66114.93-0.89MCK ahead
2025-01-0696.40113.99-1.11MCK ahead
2025-01-0396.53113.40-1.03MCK ahead
2025-01-0294.66111.20-1.03MCK ahead
2024-12-3194.63111.92-1.14MCK ahead
2024-12-3094.64112.09-1.17MCK ahead
2024-12-2795.58113.24-1.19MCK ahead
2024-12-2695.43113.60-1.26MCK ahead
2024-12-2495.83113.73-1.23MCK ahead
2024-12-2395.88113.27-1.17MCK ahead
2024-12-2095.90113.85-1.26MCK ahead
2024-12-1995.30113.75-1.35MCK ahead
2024-12-1895.60112.13-1.10MCK ahead
2024-12-1795.88110.52-0.85MCK ahead
2024-12-1696.79111.95-0.91MCK ahead
2024-12-1397.81113.17-0.92MCK ahead
2024-12-1297.76113.76-1.01MCK ahead
2024-12-1197.67113.25-0.96MCK ahead
2024-12-1099.82114.68-0.83MCK ahead
2024-12-09101.30116.24-0.82MCK ahead
2024-12-06102.52118.53-0.94MCK ahead
2024-12-05102.90119.31-0.99MCK ahead
2024-12-04104.60120.19-0.86MCK ahead
2024-12-03105.32121.36-0.91MCK ahead
2024-12-02105.24122.01-1.01MCK ahead
2024-11-29105.95123.43-1.09MCK ahead
2024-11-27105.16123.01-1.15MCK ahead
2024-11-26104.64122.74-1.20MCK ahead
2024-11-25102.86121.12-1.27MCK ahead
2024-11-22103.20122.39-1.39MCK ahead
2024-11-21103.48123.38-1.49MCK ahead
2024-11-20102.43121.98-1.48MCK ahead
2024-11-19101.50120.91-1.50MCK ahead
2024-11-18102.29120.90-1.39MCK ahead
2024-11-15101.18119.07-1.33MCK ahead
2024-11-14102.52119.83-1.23MCK ahead
2024-11-13105.28122.66-1.19MCK ahead
2024-11-12104.78121.30-1.10MCK ahead
2024-11-11104.91120.89-1.03MCK ahead
2024-11-08104.62120.38-1.01MCK ahead
2024-11-07104.35119.31-0.92MCK ahead
2024-11-06103.35107.88+0.51COR ahead
2024-11-0598.55103.16+0.46near the usual relationship
2024-11-0498.51103.29+0.44near the usual relationship
2024-11-0198.67103.37+0.46near the usual relationship
2024-10-3196.0698.31+0.83COR ahead
2024-10-3096.6598.06+0.97COR ahead
2024-10-2997.6298.03+1.14COR ahead
2024-10-2898.3799.95+0.97COR ahead
2024-10-2598.7599.65+1.08COR ahead
2024-10-2499.0499.17+1.21COR ahead
2024-10-2398.7798.54+1.28COR ahead
2024-10-2298.6399.25+1.15COR ahead
2024-10-2199.6399.83+1.23COR ahead
2024-10-18100.00100.00+1.27COR ahead

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Nov 7, 2024 (COR +1.0%, MCK +10.6%); Feb 4, 2026 (COR -8.8%, MCK -3.4%); Feb 5, 2026 (COR +6.7%, MCK +16.5%); May 6, 2026 (COR -17.4%, MCK -7.2%). Upcoming earnings: COR Nov 4, 2026 (pre-market); MCK Nov 4, 2026 (after-hours).

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)

2 simulated trades to Oct 20, 2026: -0.39% per trade on average after costs, 1 won.

LegsEnteredExitedWhyDaysBefore costsCosts + borrowAfter costs
Long COR · Short MCKFeb 23, 2026Mar 17, 2026divergence stop22-$530.44-$35.02-$563.61 (-5.64%)
Long MCK · Short CORMar 16, 2020May 27, 2020converged72$547.67-$47.42$486.13 (+4.86%)

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

The companies

COR and MCK at a glance

COR Cencora Inc.

Listing
NYSE · SEC CIK 1140859
Industry
Other Pharmaceuticals · SIC 5122 Wholesale-Drugs, Proprietaries & Druggists' Sundries
Market value
$64.9B
Price history
2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

MCK McKesson Corporation

Listing
NYSE · SEC CIK 927653
Industry
Other Pharmaceuticals · SIC 5122 Wholesale-Drugs, Proprietaries & Druggists' Sundries
Market value
$117.8B
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
MCK / CAHMeasured twinneitherOther Pharmaceuticals
COR / CAHWatchlistCAH by 1.01 sdOther Pharmaceuticals

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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.