Other Pharmaceuticals

Cardinal Health Inc. vs Cencora Inc.

WatchlistCAH / CORPrices through Oct 22, 2026

Why these are rivals: #2 and #3 by market value ($65B vs $59B) in Nasdaq's "Other Pharmaceuticals" industry; SEC SIC 5122 / 5122 (same major group); #2 and #3 by market value ($65B vs $59B) 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.

Co-movement: daily return correlation, 252 sessions: 0.58 (needs >= 0.60)
Mean reversion: ADF t-statistic of the spread: -2.52 (needs <= -2.873 (5% critical value))

Business leadership

COR is the larger business

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

Year	CAH	COR	Larger
2025	$222.6B	$321.3B	COR
2024	$226.8B	$294.0B	COR
2023	$205.0B	$262.2B	COR
2022	$181.3B	$238.6B	COR
2021	$162.5B	$214.0B	COR
2020	$152.9B	$189.9B	COR

COR led in every year with figures for both. Market value: CAH $58.5B, COR $64.9B.

Stock leadership

CAH is ahead now

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

CAH leads COR by 1.01 standard deviations: +13.2% over its usual price ratio. 1 lead switch in the last year.

Price change	3 mo	6 mo	12 mo
CAH	+12.1%	+24.9%	+61.1%
COR	+9.2%	+8.7%	+2.9%

Relationship

Not a measured twin today

Only these tests can make a pair tradable on paper.

Pass: Aligned sessions: 2521 (needs >= 254)
Fail: Co-movement: daily return correlation, 252 sessions: 0.58 (needs >= 0.60)
Fail: Mean reversion: ADF t-statistic of the spread: -2.52 (needs <= -2.873 (5% critical value))
Pass: Speed: half-life of the spread, sessions: 30.51 (needs <= 63)
Data: Both stocks current

The twins over two years

Prices side by side, and the gap between them

CAH Cardinal Health Inc. COR Cencora Inc.Price index, 100 = 2024-10-18. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).

Spread z-score: CAH relative to COR, against the 252 sessions before each day. Above 0: CAH ahead; below 0: COR ahead. Lines at +/-2 (idea) and +/-4 (stop).

Data table (504 sessions)

Date	CAH index	COR index	z	Ahead
2026-10-22	227.42	142.56	+1.01	CAH ahead
2026-10-21	229.04	143.38	+1.02	CAH ahead
2026-10-20	229.12	144.58	+0.96	CAH ahead
2026-10-19	224.76	143.20	+0.89	CAH ahead
2026-10-16	226.01	143.59	+0.92	CAH ahead
2026-10-15	225.70	143.79	+0.90	CAH ahead
2026-10-14	220.39	141.59	+0.84	CAH ahead
2026-10-13	213.26	139.03	+0.73	CAH ahead
2026-10-12	211.80	136.91	+0.80	CAH ahead
2026-10-09	211.34	136.40	+0.82	CAH ahead
2026-10-08	212.58	135.35	+0.93	CAH ahead
2026-10-07	206.53	133.62	+0.81	CAH ahead
2026-10-06	207.67	133.25	+0.88	CAH ahead
2026-10-05	207.38	132.64	+0.91	CAH ahead
2026-10-02	203.10	130.16	+0.90	CAH ahead
2026-10-01	204.69	130.47	+0.95	CAH ahead
2026-09-30	197.94	126.46	+0.94	CAH ahead
2026-09-29	199.19	129.55	+0.82	CAH ahead
2026-09-28	195.97	127.96	+0.79	CAH ahead
2026-09-25	195.91	129.27	+0.73	CAH ahead
2026-09-24	198.04	130.51	+0.74	CAH ahead
2026-09-23	196.84	131.53	+0.65	CAH ahead
2026-09-22	197.53	132.43	+0.63	CAH ahead
2026-09-21	200.83	133.30	+0.71	CAH ahead
2026-09-18	200.50	130.05	+0.88	CAH ahead
2026-09-17	201.35	130.32	+0.90	CAH ahead
2026-09-16	206.87	134.14	+0.89	CAH ahead
2026-09-15	206.97	136.16	+0.80	CAH ahead
2026-09-14	208.96	137.40	+0.81	CAH ahead
2026-09-11	208.67	135.44	+0.90	CAH ahead
2026-09-10	209.96	135.18	+0.97	CAH ahead
2026-09-09	213.50	136.17	+1.04	CAH ahead
2026-09-08	213.94	136.75	+1.03	CAH ahead
2026-09-04	219.89	139.39	+1.09	CAH ahead
2026-09-03	221.16	142.03	+1.01	CAH ahead
2026-09-02	218.39	141.67	+0.95	CAH ahead
2026-09-01	212.93	139.40	+0.90	CAH ahead
2026-08-31	208.72	136.29	+0.92	CAH ahead
2026-08-28	208.66	135.63	+0.96	CAH ahead
2026-08-27	209.17	135.29	+1.00	CAH ahead
2026-08-26	212.08	138.06	+0.97	CAH ahead
2026-08-25	211.65	138.17	+0.95	CAH ahead
2026-08-24	206.72	136.36	+0.89	CAH ahead
2026-08-21	204.17	133.95	+0.94	CAH ahead
2026-08-20	203.24	132.54	+0.98	CAH ahead
2026-08-19	208.92	133.56	+1.12	CAH ahead
2026-08-18	209.04	133.15	+1.15	CAH ahead
2026-08-17	209.64	131.63	+1.26	CAH ahead
2026-08-14	209.21	132.17	+1.23	CAH ahead
2026-08-13	205.71	130.57	+1.21	CAH ahead
2026-08-12	208.31	132.32	+1.21	CAH ahead
2026-08-11	213.74	140.62	+0.99	CAH ahead
2026-08-10	211.00	136.88	+1.09	CAH ahead
2026-08-07	210.30	134.97	+1.17	CAH ahead
2026-08-06	211.42	136.89	+1.12	CAH ahead
2026-08-05	212.82	133.61	+1.34	CAH ahead
2026-08-04	207.77	129.00	+1.42	CAH ahead
2026-08-03	209.59	129.88	+1.45	CAH ahead
2026-07-31	204.63	131.13	+1.23	CAH ahead
2026-07-30	202.00	131.50	+1.14	CAH ahead
2026-07-29	203.83	134.19	+1.07	CAH ahead
2026-07-28	206.84	134.60	+1.16	CAH ahead
2026-07-27	204.03	131.05	+1.26	CAH ahead
2026-07-24	202.86	130.52	+1.26	CAH ahead
2026-07-23	201.03	128.48	+1.31	CAH ahead
2026-07-22	196.19	126.60	+1.26	CAH ahead
2026-07-21	202.02	127.65	+1.41	CAH ahead
2026-07-20	200.83	128.03	+1.36	CAH ahead
2026-07-17	203.29	129.68	+1.37	CAH ahead
2026-07-16	203.47	129.72	+1.39	CAH ahead
2026-07-15	200.11	124.91	+1.55	CAH ahead
2026-07-14	204.71	127.31	+1.59	CAH ahead
2026-07-13	207.86	128.93	+1.62	CAH ahead
2026-07-10	209.77	127.80	+1.76	CAH ahead
2026-07-09	207.96	127.39	+1.74	CAH ahead
2026-07-08	210.97	130.38	+1.70	CAH ahead
2026-07-07	213.25	128.24	+1.91	CAH ahead
2026-07-06	211.30	125.74	+2.01	CAH ahead
2026-07-02	212.56	124.88	+2.13	CAH ahead
2026-07-01	211.48	121.48	+2.32	CAH ahead
2026-06-30	211.33	119.18	+2.50	CAH ahead
2026-06-29	210.14	118.62	+2.53	CAH ahead
2026-06-26	211.65	120.51	+2.51	CAH ahead
2026-06-25	208.83	120.86	+2.43	CAH ahead
2026-06-24	207.29	119.81	+2.48	CAH ahead
2026-06-23	203.64	118.39	+2.47	CAH ahead
2026-06-22	198.15	114.26	+2.58	CAH ahead
2026-06-18	197.29	114.49	+2.57	CAH ahead
2026-06-17	201.30	116.70	+2.63	CAH ahead
2026-06-16	202.58	118.54	+2.60	CAH ahead
2026-06-15	201.41	118.53	+2.60	CAH ahead
2026-06-12	199.14	118.63	+2.54	CAH ahead
2026-06-11	196.74	118.55	+2.48	CAH ahead
2026-06-10	192.42	118.45	+2.34	CAH ahead
2026-06-09	189.19	117.75	+2.28	CAH ahead
2026-06-08	181.91	115.44	+2.14	CAH ahead
2026-06-05	183.00	115.84	+2.19	CAH ahead
2026-06-04	179.47	113.85	+2.20	CAH ahead
2026-06-03	174.23	111.04	+2.19	CAH ahead
2026-06-02	173.37	111.54	+2.13	CAH ahead
2026-06-01	173.61	111.48	+2.18	CAH ahead
2026-05-29	175.07	113.45	+2.12	CAH ahead
2026-05-28	177.79	112.75	+2.35	CAH ahead
2026-05-27	177.78	112.46	+2.41	CAH ahead
2026-05-26	178.25	114.05	+2.34	CAH ahead
2026-05-22	178.53	115.79	+2.25	CAH ahead
2026-05-21	178.46	111.80	+2.62	CAH ahead
2026-05-20	177.24	111.51	+2.62	CAH ahead
2026-05-19	178.25	112.10	+2.68	CAH ahead
2026-05-18	177.72	110.29	+2.86	CAH ahead
2026-05-15	173.65	108.54	+2.85	CAH ahead
2026-05-14	172.92	109.97	+2.72	CAH ahead
2026-05-13	165.78	107.69	+2.55	CAH ahead
2026-05-12	162.41	109.90	+2.15	CAH ahead
2026-05-11	162.35	109.38	+2.23	CAH ahead
2026-05-08	163.38	109.96	+2.27	CAH ahead
2026-05-07	164.83	107.68	+2.63	CAH ahead
2026-05-06	170.35	106.45	+3.18	CAH ahead
2026-05-05	175.25	128.84	+1.42	CAH ahead
2026-05-04	175.30	127.89	+1.52	CAH ahead
2026-05-01	173.69	128.04	+1.41	CAH ahead
2026-04-30	171.59	129.73	+1.14	CAH ahead
2026-04-29	180.43	131.17	+1.58	CAH ahead
2026-04-28	182.91	131.40	+1.72	CAH ahead
2026-04-27	180.00	130.63	+1.63	CAH ahead
2026-04-24	177.79	129.80	+1.57	CAH ahead
2026-04-23	182.12	131.15	+1.73	CAH ahead
2026-04-22	178.41	129.85	+1.63	CAH ahead
2026-04-21	182.30	131.57	+1.73	CAH ahead
2026-04-20	187.87	136.04	+1.71	CAH ahead
2026-04-17	190.37	137.96	+1.71	CAH ahead
2026-04-16	189.57	135.77	+1.85	CAH ahead
2026-04-15	188.44	133.76	+1.97	CAH ahead
2026-04-14	191.22	134.73	+2.06	CAH ahead
2026-04-13	190.53	134.41	+2.07	CAH ahead
2026-04-10	191.73	135.12	+2.10	CAH ahead
2026-04-09	191.98	135.81	+2.07	CAH ahead
2026-04-08	191.38	136.85	+1.97	CAH ahead
2026-04-07	189.28	135.15	+2.01	CAH ahead
2026-04-06	189.15	135.18	+2.02	CAH ahead
2026-04-02	190.42	136.80	+1.99	CAH ahead
2026-04-01	188.61	133.79	+2.16	CAH ahead
2026-03-31	187.98	132.31	+2.27	CAH ahead
2026-03-30	183.53	130.54	+2.18	CAH ahead
2026-03-27	183.77	131.60	+2.13	CAH ahead
2026-03-26	184.77	133.95	+2.02	CAH ahead
2026-03-25	187.98	136.92	+1.99	CAH ahead
2026-03-24	184.35	137.84	+1.71	CAH ahead
2026-03-23	183.61	135.03	+1.92	CAH ahead
2026-03-20	184.89	137.69	+1.79	CAH ahead
2026-03-19	187.63	139.72	+1.81	CAH ahead
2026-03-18	188.48	136.96	+2.12	CAH ahead
2026-03-17	192.47	140.97	+2.06	CAH ahead
2026-03-16	193.57	145.68	+1.75	CAH ahead
2026-03-13	193.11	147.39	+1.60	CAH ahead
2026-03-12	194.90	148.53	+1.64	CAH ahead
2026-03-11	191.64	147.54	+1.53	CAH ahead
2026-03-10	193.08	148.33	+1.57	CAH ahead
2026-03-09	197.74	152.38	+1.54	CAH ahead
2026-03-06	193.74	150.98	+1.42	CAH ahead
2026-03-05	192.17	151.32	+1.31	CAH ahead
2026-03-04	198.54	155.07	+1.42	CAH ahead
2026-03-03	201.36	156.44	+1.50	CAH ahead
2026-03-02	204.50	156.95	+1.66	CAH ahead
2026-02-27	203.92	156.74	+1.66	CAH ahead
2026-02-26	202.05	154.42	+1.75	CAH ahead
2026-02-25	201.21	152.90	+1.84	CAH ahead
2026-02-24	201.02	153.47	+1.80	CAH ahead
2026-02-23	200.00	154.16	+1.70	CAH ahead
2026-02-20	199.66	152.08	+1.87	CAH ahead
2026-02-19	198.17	151.25	+1.86	CAH ahead
2026-02-18	200.15	151.72	+1.97	CAH ahead
2026-02-17	200.68	151.61	+2.04	CAH ahead
2026-02-13	196.41	151.97	+1.76	CAH ahead
2026-02-12	191.32	147.86	+1.79	CAH ahead
2026-02-11	199.49	154.02	+1.82	CAH ahead
2026-02-10	195.95	151.62	+1.81	CAH ahead
2026-02-09	200.84	153.00	+2.04	CAH ahead
2026-02-06	201.33	151.31	+2.25	CAH ahead
2026-02-05	202.10	148.32	+2.61	CAH ahead
2026-02-04	184.01	138.98	+2.26	CAH ahead
2026-02-03	193.93	152.36	+1.74	CAH ahead
2026-02-02	194.76	153.12	+1.75	CAH ahead
2026-01-30	191.16	151.30	+1.67	CAH ahead
2026-01-29	187.91	148.30	+1.73	CAH ahead
2026-01-28	187.16	147.64	+1.76	CAH ahead
2026-01-27	190.41	150.00	+1.79	CAH ahead
2026-01-26	187.64	149.73	+1.63	CAH ahead
2026-01-23	185.33	148.88	+1.55	CAH ahead
2026-01-22	184.05	148.45	+1.51	CAH ahead
2026-01-21	185.46	148.15	+1.66	CAH ahead
2026-01-20	187.15	147.69	+1.85	CAH ahead
2026-01-16	189.00	149.45	+1.84	CAH ahead
2026-01-15	189.89	149.67	+1.91	CAH ahead
2026-01-14	189.98	147.38	+2.17	CAH ahead
2026-01-13	185.27	145.68	+2.00	CAH ahead
2026-01-12	180.16	144.11	+1.77	CAH ahead
2026-01-09	178.91	141.38	+1.97	CAH ahead
2026-01-08	180.14	141.41	+2.10	CAH ahead
2026-01-07	184.32	143.37	+2.27	CAH ahead
2026-01-06	185.46	145.80	+2.13	CAH ahead
2026-01-05	182.77	143.59	+2.17	CAH ahead
2026-01-02	183.01	142.72	+2.32	CAH ahead
2025-12-31	182.81	142.25	+2.39	CAH ahead
2025-12-30	184.33	143.22	+2.45	CAH ahead
2025-12-29	184.49	143.31	+2.49	CAH ahead
2025-12-26	185.29	143.64	+2.57	CAH ahead
2025-12-24	184.63	143.19	+2.61	CAH ahead
2025-12-23	184.48	143.45	+2.61	CAH ahead
2025-12-22	182.55	143.21	+2.50	CAH ahead
2025-12-19	180.54	143.59	+2.30	CAH ahead
2025-12-18	177.12	143.44	+2.01	CAH ahead
2025-12-17	176.53	144.45	+1.85	CAH ahead
2025-12-16	176.04	143.92	+1.89	CAH ahead
2025-12-15	177.88	147.55	+1.65	CAH ahead
2025-12-12	176.30	145.73	+1.73	CAH ahead
2025-12-11	176.43	145.10	+1.84	CAH ahead
2025-12-10	176.33	143.53	+2.05	CAH ahead
2025-12-09	176.14	142.06	+2.25	CAH ahead
2025-12-08	176.92	142.28	+2.34	CAH ahead
2025-12-05	176.88	143.06	+2.26	CAH ahead
2025-12-04	177.20	142.20	+2.44	CAH ahead
2025-12-03	177.66	141.22	+2.67	CAH ahead
2025-12-02	182.48	147.69	+2.36	CAH ahead
2025-12-01	185.04	151.67	+2.14	CAH ahead
2025-11-28	188.83	155.38	+2.10	CAH ahead
2025-11-26	189.61	155.22	+2.23	CAH ahead
2025-11-25	190.13	157.84	+1.98	CAH ahead
2025-11-24	187.88	156.77	+1.90	CAH ahead
2025-11-21	186.35	154.02	+2.11	CAH ahead
2025-11-20	184.95	152.50	+2.19	CAH ahead
2025-11-19	184.61	151.93	+2.26	CAH ahead
2025-11-18	184.12	152.31	+2.19	CAH ahead
2025-11-17	183.42	153.73	+1.94	CAH ahead
2025-11-14	182.70	152.44	+2.06	CAH ahead
2025-11-13	183.31	153.92	+1.95	CAH ahead
2025-11-12	181.76	153.06	+1.91	CAH ahead
2025-11-11	182.20	153.76	+1.88	CAH ahead
2025-11-10	182.75	153.58	+1.99	CAH ahead
2025-11-07	181.18	151.92	+2.06	CAH ahead
2025-11-06	176.13	151.72	+1.50	CAH ahead
2025-11-05	175.06	149.10	+1.76	CAH ahead
2025-11-04	173.77	145.11	+2.21	CAH ahead
2025-11-03	169.22	143.59	+1.88	CAH ahead
2025-10-31	169.71	142.28	+2.16	CAH ahead
2025-10-30	168.88	143.71	+1.86	CAH ahead
2025-10-29	146.31	140.32	-0.72	COR ahead
2025-10-28	144.82	141.36	-1.10	COR ahead
2025-10-27	145.72	141.54	-0.98	COR ahead
2025-10-24	144.02	140.13	-1.02	COR ahead
2025-10-23	141.59	138.38	-1.11	COR ahead
2025-10-22	141.91	139.33	-1.20	COR ahead
2025-10-21	141.16	138.49	-1.18	COR ahead
2025-10-20	139.91	137.89	-1.28	COR ahead
2025-10-17	139.14	136.75	-1.22	COR ahead
2025-10-16	136.35	134.52	-1.31	COR ahead
2025-10-15	138.48	134.61	-1.00	COR ahead
2025-10-14	137.17	133.90	-1.09	COR ahead
2025-10-13	137.27	133.51	-1.02	COR ahead
2025-10-10	139.56	133.93	-0.74	COR ahead
2025-10-09	139.85	132.30	-0.43	near the usual relationship
2025-10-08	140.35	130.82	-0.12	near the usual relationship
2025-10-07	139.36	130.02	-0.14	near the usual relationship
2025-10-06	138.06	128.59	-0.10	near the usual relationship
2025-10-03	137.41	127.52	-0.02	near the usual relationship
2025-10-02	140.97	129.96	+0.13	near the usual relationship
2025-10-01	140.49	131.31	-0.16	near the usual relationship
2025-09-30	139.63	131.63	-0.34	near the usual relationship
2025-09-29	137.51	129.75	-0.36	near the usual relationship
2025-09-26	136.74	129.30	-0.40	near the usual relationship
2025-09-25	132.51	125.86	-0.49	near the usual relationship
2025-09-24	137.51	129.87	-0.37	near the usual relationship
2025-09-23	137.55	127.36	+0.05	near the usual relationship
2025-09-22	131.19	121.63	+0.03	near the usual relationship
2025-09-19	133.08	122.15	+0.25	near the usual relationship
2025-09-18	133.48	122.50	+0.26	near the usual relationship
2025-09-17	132.27	121.75	+0.20	near the usual relationship
2025-09-16	131.99	122.14	+0.10	near the usual relationship
2025-09-15	133.68	122.73	+0.26	near the usual relationship
2025-09-12	135.43	127.41	-0.24	near the usual relationship
2025-09-11	135.64	127.53	-0.22	near the usual relationship
2025-09-10	132.81	124.80	-0.20	near the usual relationship
2025-09-09	134.28	125.79	-0.13	near the usual relationship
2025-09-08	133.69	125.45	-0.16	near the usual relationship
2025-09-05	133.05	123.19	+0.12	near the usual relationship
2025-09-04	132.85	123.28	+0.08	near the usual relationship
2025-09-03	133.94	124.31	+0.08	near the usual relationship
2025-09-02	133.04	124.18	-0.03	near the usual relationship
2025-08-29	132.35	122.82	+0.10	near the usual relationship
2025-08-28	133.00	122.09	+0.32	near the usual relationship
2025-08-27	132.76	122.38	+0.24	near the usual relationship
2025-08-26	131.21	122.01	+0.08	near the usual relationship
2025-08-25	129.92	121.43	-0.01	near the usual relationship
2025-08-22	131.75	123.24	-0.02	near the usual relationship
2025-08-21	134.84	127.71	-0.25	near the usual relationship
2025-08-20	136.06	127.91	-0.10	near the usual relationship
2025-08-19	132.57	124.13	-0.02	near the usual relationship
2025-08-18	133.20	122.29	+0.36	near the usual relationship
2025-08-15	133.09	123.33	+0.19	near the usual relationship
2025-08-14	133.64	124.19	+0.15	near the usual relationship
2025-08-13	131.77	122.58	+0.14	near the usual relationship
2025-08-12	130.15	121.78	+0.05	near the usual relationship
2025-08-11	140.25	122.44	+1.24	CAH ahead
2025-08-08	140.03	120.09	+1.53	CAH ahead
2025-08-07	136.47	117.26	+1.49	CAH ahead
2025-08-06	139.31	119.52	+1.51	CAH ahead
2025-08-05	140.77	123.13	+1.20	CAH ahead
2025-08-04	141.11	123.67	+1.17	CAH ahead
2025-08-01	138.78	121.45	+1.20	CAH ahead
2025-07-31	138.08	120.49	+1.25	CAH ahead
2025-07-30	140.47	122.90	+1.21	CAH ahead
2025-07-29	140.01	122.04	+1.28	CAH ahead
2025-07-28	139.07	120.54	+1.37	CAH ahead
2025-07-25	139.79	122.29	+1.23	CAH ahead
2025-07-24	140.81	122.33	+1.34	CAH ahead
2025-07-23	140.34	123.59	+1.14	CAH ahead
2025-07-22	139.76	123.39	+1.11	CAH ahead
2025-07-21	141.07	123.27	+1.27	CAH ahead
2025-07-18	141.94	123.35	+1.35	CAH ahead
2025-07-17	141.86	123.99	+1.27	CAH ahead
2025-07-16	143.32	125.44	+1.26	CAH ahead
2025-07-15	143.24	124.10	+1.41	CAH ahead
2025-07-14	143.84	125.11	+1.36	CAH ahead
2025-07-11	143.20	124.34	+1.39	CAH ahead
2025-07-10	144.27	125.22	+1.41	CAH ahead
2025-07-09	146.13	126.42	+1.46	CAH ahead
2025-07-08	146.29	125.52	+1.59	CAH ahead
2025-07-07	149.12	127.41	+1.66	CAH ahead
2025-07-03	146.72	124.77	+1.74	CAH ahead
2025-07-02	144.10	122.63	+1.74	CAH ahead
2025-07-01	146.25	124.39	+1.77	CAH ahead
2025-06-30	149.45	126.29	+1.87	CAH ahead
2025-06-27	148.72	126.11	+1.84	CAH ahead
2025-06-26	147.33	124.91	+1.86	CAH ahead
2025-06-25	145.67	123.12	+1.92	CAH ahead
2025-06-24	146.08	123.88	+1.89	CAH ahead
2025-06-23	145.89	123.46	+1.94	CAH ahead
2025-06-20	145.36	123.68	+1.88	CAH ahead
2025-06-18	147.14	124.98	+1.92	CAH ahead
2025-06-17	146.70	123.49	+2.07	CAH ahead
2025-06-16	144.48	123.19	+1.91	CAH ahead
2025-06-13	143.59	124.47	+1.68	CAH ahead
2025-06-12	142.80	124.26	+1.64	CAH ahead
2025-06-11	136.58	120.73	+1.43	CAH ahead
2025-06-10	136.18	119.72	+1.51	CAH ahead
2025-06-09	136.66	119.59	+1.59	CAH ahead
2025-06-06	137.63	121.69	+1.45	CAH ahead
2025-06-05	137.11	121.47	+1.43	CAH ahead
2025-06-04	137.06	121.73	+1.41	CAH ahead
2025-06-03	138.32	122.79	+1.43	CAH ahead
2025-06-02	138.11	123.01	+1.40	CAH ahead
2025-05-30	137.39	122.66	+1.37	CAH ahead
2025-05-29	136.99	122.43	+1.37	CAH ahead
2025-05-28	136.22	121.80	+1.38	CAH ahead
2025-05-27	137.60	123.57	+1.33	CAH ahead
2025-05-23	135.89	123.13	+1.21	CAH ahead
2025-05-22	135.66	122.19	+1.30	CAH ahead
2025-05-21	136.38	122.71	+1.33	CAH ahead
2025-05-20	137.68	123.38	+1.40	CAH ahead
2025-05-19	136.87	123.25	+1.34	CAH ahead
2025-05-16	137.22	122.23	+1.51	CAH ahead
2025-05-15	135.17	120.44	+1.52	CAH ahead
2025-05-14	132.03	117.57	+1.54	CAH ahead
2025-05-13	131.89	117.51	+1.55	CAH ahead
2025-05-12	132.21	117.25	+1.63	CAH ahead
2025-05-09	131.86	119.19	+1.37	CAH ahead
2025-05-08	131.01	119.52	+1.24	CAH ahead
2025-05-07	136.54	128.28	+0.83	CAH ahead
2025-05-06	134.94	122.48	+1.33	CAH ahead
2025-05-05	135.21	122.97	+1.32	CAH ahead
2025-05-02	133.02	123.03	+1.08	CAH ahead
2025-05-01	129.46	122.32	+0.79	CAH ahead
2025-04-30	125.69	123.27	+0.26	near the usual relationship
2025-04-29	124.40	122.21	+0.24	near the usual relationship
2025-04-28	122.98	121.19	+0.20	near the usual relationship
2025-04-25	122.37	120.41	+0.23	near the usual relationship
2025-04-24	120.84	118.94	+0.23	near the usual relationship
2025-04-23	119.59	119.91	-0.03	near the usual relationship
2025-04-22	118.93	120.57	-0.18	near the usual relationship
2025-04-21	116.69	118.42	-0.19	near the usual relationship
2025-04-17	119.84	120.77	-0.09	near the usual relationship
2025-04-16	119.53	119.80	-0.01	near the usual relationship
2025-04-15	119.43	119.84	-0.03	near the usual relationship
2025-04-14	119.90	119.74	+0.04	near the usual relationship
2025-04-11	117.22	119.75	-0.27	near the usual relationship
2025-04-10	114.65	117.57	-0.32	near the usual relationship
2025-04-09	116.05	115.36	+0.11	near the usual relationship
2025-04-08	111.20	115.71	-0.52	COR ahead
2025-04-07	111.80	115.64	-0.44	near the usual relationship
2025-04-04	115.32	117.25	-0.20	near the usual relationship
2025-04-03	121.96	121.87	+0.04	near the usual relationship
2025-04-02	123.36	117.72	+0.69	CAH ahead
2025-04-01	121.99	116.84	+0.64	CAH ahead
2025-03-31	122.56	117.13	+0.68	CAH ahead
2025-03-28	121.38	115.91	+0.69	CAH ahead
2025-03-27	121.56	115.39	+0.78	CAH ahead
2025-03-26	119.19	114.30	+0.64	CAH ahead
2025-03-25	118.09	113.08	+0.67	CAH ahead
2025-03-24	118.50	112.66	+0.77	CAH ahead
2025-03-21	117.33	112.64	+0.64	CAH ahead
2025-03-20	118.39	112.81	+0.75	CAH ahead
2025-03-19	117.53	111.95	+0.76	CAH ahead
2025-03-18	116.95	111.25	+0.78	CAH ahead
2025-03-17	115.67	109.91	+0.80	CAH ahead
2025-03-14	113.87	108.69	+0.74	CAH ahead
2025-03-13	112.33	107.83	+0.66	CAH ahead
2025-03-12	112.83	106.98	+0.84	CAH ahead
2025-03-11	110.46	109.79	+0.17	near the usual relationship
2025-03-10	110.25	110.16	+0.10	near the usual relationship
2025-03-07	112.53	107.22	+0.77	CAH ahead
2025-03-06	112.99	106.88	+0.88	CAH ahead
2025-03-05	113.35	105.94	+1.05	CAH ahead
2025-03-04	112.37	106.68	+0.84	CAH ahead
2025-03-03	114.92	107.56	+1.04	CAH ahead
2025-02-28	115.19	106.79	+1.19	CAH ahead
2025-02-27	113.40	104.88	+1.23	CAH ahead
2025-02-26	113.14	105.57	+1.11	CAH ahead
2025-02-25	113.70	105.52	+1.20	CAH ahead
2025-02-24	113.47	102.87	+1.55	CAH ahead
2025-02-21	113.03	101.68	+1.68	CAH ahead
2025-02-20	113.32	102.54	+1.61	CAH ahead
2025-02-19	112.76	103.37	+1.43	CAH ahead
2025-02-18	112.31	101.69	+1.63	CAH ahead
2025-02-14	112.28	102.19	+1.57	CAH ahead
2025-02-13	112.78	102.99	+1.53	CAH ahead
2025-02-12	113.03	102.59	+1.64	CAH ahead
2025-02-11	114.22	103.93	+1.62	CAH ahead
2025-02-10	113.16	103.77	+1.52	CAH ahead
2025-02-07	113.31	104.40	+1.46	CAH ahead
2025-02-06	113.02	103.66	+1.54	CAH ahead
2025-02-05	113.38	106.68	+1.17	CAH ahead
2025-02-04	111.35	105.96	+1.01	CAH ahead
2025-02-03	111.49	107.16	+0.86	CAH ahead
2025-01-31	110.01	107.07	+0.67	CAH ahead
2025-01-30	114.10	108.86	+0.97	CAH ahead
2025-01-29	113.66	107.80	+1.06	CAH ahead
2025-01-28	113.63	107.44	+1.12	CAH ahead
2025-01-27	116.30	107.35	+1.49	CAH ahead
2025-01-24	114.61	104.65	+1.67	CAH ahead
2025-01-23	115.03	104.43	+1.77	CAH ahead
2025-01-22	114.54	104.01	+1.78	CAH ahead
2025-01-21	113.72	103.22	+1.81	CAH ahead
2025-01-17	112.33	101.95	+1.82	CAH ahead
2025-01-16	113.01	101.46	+2.01	CAH ahead
2025-01-15	110.94	100.10	+1.95	CAH ahead
2025-01-14	110.34	101.10	+1.72	CAH ahead
2025-01-13	107.52	99.44	+1.58	CAH ahead
2025-01-10	108.15	99.48	+1.68	CAH ahead
2025-01-08	109.00	100.17	+1.70	CAH ahead
2025-01-07	108.00	98.66	+1.81	CAH ahead
2025-01-06	106.42	96.40	+1.96	CAH ahead
2025-01-03	106.13	96.53	+1.90	CAH ahead
2025-01-02	104.99	94.66	+2.06	CAH ahead
2024-12-31	105.21	94.63	+2.12	CAH ahead
2024-12-30	104.90	94.64	+2.09	CAH ahead
2024-12-27	105.99	95.58	+2.11	CAH ahead
2024-12-26	106.04	95.43	+2.16	CAH ahead
2024-12-24	105.71	95.83	+2.05	CAH ahead
2024-12-23	105.28	95.88	+1.99	CAH ahead
2024-12-20	105.22	95.90	+1.99	CAH ahead
2024-12-19	104.08	95.30	+1.92	CAH ahead
2024-12-18	103.11	95.60	+1.70	CAH ahead
2024-12-17	103.03	95.88	+1.64	CAH ahead
2024-12-16	103.68	96.79	+1.59	CAH ahead
2024-12-13	105.06	97.81	+1.62	CAH ahead
2024-12-12	104.49	97.76	+1.53	CAH ahead
2024-12-11	104.46	97.67	+1.53	CAH ahead
2024-12-10	107.13	99.82	+1.57	CAH ahead
2024-12-09	108.16	101.30	+1.47	CAH ahead
2024-12-06	109.21	102.52	+1.42	CAH ahead
2024-12-05	109.28	102.90	+1.36	CAH ahead
2024-12-04	111.41	104.60	+1.40	CAH ahead
2024-12-03	109.66	105.32	+1.02	CAH ahead
2024-12-02	108.95	105.24	+0.91	CAH ahead
2024-11-29	108.74	105.95	+0.76	CAH ahead
2024-11-27	109.09	105.16	+0.92	CAH ahead
2024-11-26	108.92	104.64	+0.96	CAH ahead
2024-11-25	108.33	102.86	+1.14	CAH ahead
2024-11-22	108.39	103.20	+1.09	CAH ahead
2024-11-21	109.79	103.48	+1.24	CAH ahead
2024-11-20	107.05	102.43	+0.99	CAH ahead
2024-11-19	105.27	101.50	+0.86	CAH ahead
2024-11-18	106.78	102.29	+0.95	CAH ahead
2024-11-15	105.67	101.18	+0.95	CAH ahead
2024-11-14	107.90	102.52	+1.05	CAH ahead
2024-11-13	111.49	105.28	+1.14	CAH ahead
2024-11-12	109.87	104.78	+0.98	CAH ahead
2024-11-11	108.21	104.91	+0.73	CAH ahead
2024-11-08	107.25	104.62	+0.63	CAH ahead
2024-11-07	105.17	104.35	+0.37	near the usual relationship
2024-11-06	102.82	103.35	+0.17	near the usual relationship
2024-11-05	100.68	98.55	+0.56	CAH ahead
2024-11-04	99.55	98.51	+0.39	near the usual relationship
2024-11-01	103.31	98.67	+0.91	CAH ahead
2024-10-31	96.54	96.06	+0.31	near the usual relationship
2024-10-30	95.98	96.65	+0.13	near the usual relationship
2024-10-29	97.91	97.62	+0.28	near the usual relationship
2024-10-28	98.63	98.37	+0.27	near the usual relationship
2024-10-25	98.65	98.75	+0.21	near the usual relationship
2024-10-24	99.78	99.04	+0.33	near the usual relationship
2024-10-23	99.56	98.77	+0.34	near the usual relationship
2024-10-22	99.84	98.63	+0.40	near the usual relationship
2024-10-21	99.92	99.63	+0.26	near the usual relationship
2024-10-18	100.00	100.00	+0.22	near the usual relationship

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Mar 10, 2025 (CAH -2.0%, COR +2.7%); Aug 12, 2025 (CAH -7.2%, COR -0.5%); Oct 30, 2025 (CAH +15.4%, COR +2.4%); May 6, 2026 (CAH -2.8%, COR -17.4%). Upcoming earnings: COR Nov 4, 2026 (pre-market); CAH Nov 5, 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)

1 simulated trade to Oct 20, 2026: -7.56% per trade on average after costs, 0 won.

Legs	Entered	Exited	Why	Days	Before costs	Costs + borrow	After costs
Long CAH · Short COR	May 29, 2019	Jun 7, 2019	divergence stop	9	-$716.00	-$44.89	-$755.92 (-7.56%)

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

The companies

CAH and COR at a glance

CAH Cardinal Health Inc.

Listing: NYSE · SEC CIK 721371
Industry: Other Pharmaceuticals · SIC 5122 Wholesale-Drugs, Proprietaries & Druggists' Sundries
Market value: $58.5B
Price history: 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

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

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

All pairs →

Pair	Status	Ahead now	Industry
MCK / CAH	Measured twin	neither	Other Pharmaceuticals
MCK / COR	Watchlist	MCK by 1.79 sd	Other 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.