Retail-Auto Dealers and Gas Stations

Casey's General Stores Inc. vs Copart Inc. (DE)

WatchlistCASY / CPRTPrices through Oct 22, 2026

Why these are rivals: #2 and #3 by market value ($26B vs $25B) in Nasdaq's "Retail-Auto Dealers and Gas Stations" industry; SEC SIC 5500 / 5500 (same major group); #2 and #3 by market value ($26B vs $25B) with SEC SIC 5500 (Retail-Auto Dealers & Gasoline Stations).

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: 0.03 (needs >= 0.60)
Mean reversion: ADF t-statistic of the spread: -1.70 (needs <= -2.873 (5% critical value))

Business leadership

CASY is the larger business

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

Year	CASY	CPRT	Larger
2025	$17.6B	$4.6B	CASY
2024	$15.9B	$4.2B	CASY
2023	$14.9B	$3.9B	CASY
2022	$15.1B	$3.5B	CASY
2021	$13.0B	$2.7B	CASY
2020	$8.7B	$2.2B	CASY

CASY led in every year with figures for both. Market value: CASY $25.6B, CPRT $25.5B.

Stock leadership

CASY is ahead now

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

CASY leads CPRT by 0.68 standard deviations: +20.9% over its usual price ratio. 0 lead switches in the last year.

Price change	3 mo	6 mo	12 mo
CASY	-17.2%	-9.6%	+30.2%
CPRT	+4.1%	-14.1%	-36.4%

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: 0.03 (needs >= 0.60)
Fail: Mean reversion: ADF t-statistic of the spread: -1.70 (needs <= -2.873 (5% critical value))
Pass: Speed: half-life of the spread, sessions: 57.87 (needs <= 63)
Data: Both stocks current

The twins over two years

Prices side by side, and the gap between them

CASY Casey's General Stores Inc. CPRT Copart Inc. (DE)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: CASY relative to CPRT, against the 252 sessions before each day. Above 0: CASY ahead; below 0: CPRT ahead. Lines at +/-2 (idea) and +/-4 (stop).

Data table (504 sessions)

Date	CASY index	CPRT index	z	Ahead
2026-10-22	182.92	53.99	+0.68	CASY ahead
2026-10-21	178.19	51.20	+0.78	CASY ahead
2026-10-20	175.45	51.65	+0.70	CASY ahead
2026-10-19	177.81	51.06	+0.80	CASY ahead
2026-10-16	176.66	51.73	+0.74	CASY ahead
2026-10-15	172.66	51.50	+0.68	CASY ahead
2026-10-14	167.53	48.76	+0.77	CASY ahead
2026-10-13	164.49	48.94	+0.70	CASY ahead
2026-10-12	165.51	49.15	+0.71	CASY ahead
2026-10-09	165.65	50.71	+0.61	CASY ahead
2026-10-08	164.62	51.00	+0.58	CASY ahead
2026-10-07	162.31	49.41	+0.64	CASY ahead
2026-10-06	159.12	49.78	+0.56	CASY ahead
2026-10-05	158.23	51.32	+0.44	near the usual relationship
2026-10-02	158.34	50.52	+0.50	CASY ahead
2026-10-01	158.79	50.65	+0.51	CASY ahead
2026-09-30	155.96	50.63	+0.45	near the usual relationship
2026-09-29	153.76	50.37	+0.43	near the usual relationship
2026-09-28	155.39	50.52	+0.46	near the usual relationship
2026-09-25	153.39	51.21	+0.38	near the usual relationship
2026-09-24	153.49	52.04	+0.33	near the usual relationship
2026-09-23	153.10	53.57	+0.23	near the usual relationship
2026-09-22	149.90	53.44	+0.18	near the usual relationship
2026-09-21	150.03	53.66	+0.18	near the usual relationship
2026-09-18	153.14	54.34	+0.21	near the usual relationship
2026-09-17	155.70	55.05	+0.22	near the usual relationship
2026-09-16	150.97	57.20	+0.01	near the usual relationship
2026-09-15	150.49	57.61	-0.02	near the usual relationship
2026-09-14	159.33	58.89	+0.10	near the usual relationship
2026-09-11	157.75	55.59	+0.26	near the usual relationship
2026-09-10	160.87	57.07	+0.24	near the usual relationship
2026-09-09	161.23	59.45	+0.13	near the usual relationship
2026-09-08	188.00	60.50	+0.56	CASY ahead
2026-09-04	193.79	62.58	+0.55	CASY ahead
2026-09-03	194.39	62.32	+0.58	CASY ahead
2026-09-02	193.15	59.69	+0.70	CASY ahead
2026-09-01	196.57	60.25	+0.73	CASY ahead
2026-08-31	192.80	61.23	+0.63	CASY ahead
2026-08-28	193.64	61.23	+0.65	CASY ahead
2026-08-27	195.66	60.80	+0.71	CASY ahead
2026-08-26	206.87	60.63	+0.89	CASY ahead
2026-08-25	211.44	61.86	+0.90	CASY ahead
2026-08-24	218.94	61.73	+1.02	CASY ahead
2026-08-21	214.21	62.73	+0.91	CASY ahead
2026-08-20	212.32	63.72	+0.85	CASY ahead
2026-08-19	214.32	62.82	+0.92	CASY ahead
2026-08-18	219.15	58.48	+1.21	CASY ahead
2026-08-17	222.99	58.83	+1.25	CASY ahead
2026-08-14	216.96	58.67	+1.18	CASY ahead
2026-08-13	218.83	54.55	+1.43	CASY ahead
2026-08-12	215.05	53.80	+1.43	CASY ahead
2026-08-11	212.72	54.57	+1.37	CASY ahead
2026-08-10	219.01	54.92	+1.45	CASY ahead
2026-08-07	213.75	55.05	+1.38	CASY ahead
2026-08-06	213.36	53.84	+1.45	CASY ahead
2026-08-05	218.60	53.66	+1.55	CASY ahead
2026-08-04	218.03	54.57	+1.51	CASY ahead
2026-08-03	220.52	54.47	+1.56	CASY ahead
2026-07-31	223.25	54.05	+1.63	CASY ahead
2026-07-30	222.35	54.87	+1.59	CASY ahead
2026-07-29	222.26	57.20	+1.48	CASY ahead
2026-07-28	219.62	56.96	+1.47	CASY ahead
2026-07-27	218.73	55.29	+1.56	CASY ahead
2026-07-24	220.85	51.86	+1.79	CASY ahead
2026-07-23	224.34	50.48	+1.94	CASY ahead
2026-07-22	219.59	50.43	+1.90	CASY ahead
2026-07-21	219.98	50.43	+1.93	CASY ahead
2026-07-20	222.08	51.02	+1.94	CASY ahead
2026-07-17	220.20	51.24	+1.93	CASY ahead
2026-07-16	211.98	52.51	+1.75	CASY ahead
2026-07-15	207.23	50.63	+1.81	CASY ahead
2026-07-14	217.14	51.08	+1.95	CASY ahead
2026-07-13	220.20	50.94	+2.02	CASY ahead
2026-07-10	210.13	51.07	+1.89	CASY ahead
2026-07-09	210.69	52.58	+1.83	CASY ahead
2026-07-08	216.10	53.06	+1.90	CASY ahead
2026-07-07	205.56	54.32	+1.69	CASY ahead
2026-07-06	206.89	54.27	+1.73	CASY ahead
2026-07-02	204.39	55.70	+1.62	CASY ahead
2026-07-01	201.02	53.43	+1.71	CASY ahead
2026-06-30	203.71	52.32	+1.84	CASY ahead
2026-06-29	199.98	52.15	+1.81	CASY ahead
2026-06-26	199.57	56.70	+1.55	CASY ahead
2026-06-25	201.13	55.77	+1.64	CASY ahead
2026-06-24	205.40	56.42	+1.69	CASY ahead
2026-06-23	213.22	54.94	+1.92	CASY ahead
2026-06-22	213.17	54.71	+1.95	CASY ahead
2026-06-18	215.88	56.11	+1.93	CASY ahead
2026-06-17	218.08	54.79	+2.06	CASY ahead
2026-06-16	221.78	57.05	+2.01	CASY ahead
2026-06-15	223.60	56.24	+2.11	CASY ahead
2026-06-12	229.43	57.07	+2.17	CASY ahead
2026-06-11	234.85	57.65	+2.24	CASY ahead
2026-06-10	234.68	58.20	+2.23	CASY ahead
2026-06-09	195.10	58.11	+1.63	CASY ahead
2026-06-08	192.65	57.28	+1.65	CASY ahead
2026-06-05	195.29	57.46	+1.70	CASY ahead
2026-06-04	195.20	57.11	+1.73	CASY ahead
2026-06-03	198.43	56.33	+1.85	CASY ahead
2026-06-02	193.31	57.28	+1.72	CASY ahead
2026-06-01	191.10	59.99	+1.54	CASY ahead
2026-05-29	196.63	60.82	+1.60	CASY ahead
2026-05-28	200.17	61.77	+1.62	CASY ahead
2026-05-27	201.05	60.97	+1.69	CASY ahead
2026-05-26	207.46	61.69	+1.76	CASY ahead
2026-05-22	211.46	62.71	+1.78	CASY ahead
2026-05-21	211.41	63.85	+1.73	CASY ahead
2026-05-20	218.51	61.32	+1.98	CASY ahead
2026-05-19	218.42	61.47	+1.99	CASY ahead
2026-05-18	219.37	62.06	+1.98	CASY ahead
2026-05-15	218.57	59.95	+2.10	CASY ahead
2026-05-14	224.91	60.60	+2.17	CASY ahead
2026-05-13	227.70	61.14	+2.20	CASY ahead
2026-05-12	222.27	62.06	+2.09	CASY ahead
2026-05-11	224.80	61.75	+2.16	CASY ahead
2026-05-08	220.30	62.99	+2.05	CASY ahead
2026-05-07	218.11	62.88	+2.04	CASY ahead
2026-05-06	219.95	61.97	+2.14	CASY ahead
2026-05-05	221.03	61.53	+2.20	CASY ahead
2026-05-04	218.54	61.79	+2.17	CASY ahead
2026-05-01	214.26	61.75	+2.13	CASY ahead
2026-04-30	210.73	61.45	+2.11	CASY ahead
2026-04-29	200.31	61.86	+1.93	CASY ahead
2026-04-28	201.10	61.88	+1.96	CASY ahead
2026-04-27	206.20	61.60	+2.08	CASY ahead
2026-04-24	204.93	61.38	+2.09	CASY ahead
2026-04-23	202.44	62.88	+1.99	CASY ahead
2026-04-22	200.67	62.51	+2.00	CASY ahead
2026-04-21	200.39	62.62	+2.01	CASY ahead
2026-04-20	196.96	62.66	+1.96	CASY ahead
2026-04-17	193.44	62.08	+1.95	CASY ahead
2026-04-16	188.96	61.75	+1.91	CASY ahead
2026-04-15	188.86	61.92	+1.92	CASY ahead
2026-04-14	190.30	61.79	+1.97	CASY ahead
2026-04-13	188.39	61.71	+1.96	CASY ahead
2026-04-10	189.20	60.80	+2.04	CASY ahead
2026-04-09	194.48	61.23	+2.13	CASY ahead
2026-04-08	194.38	61.56	+2.14	CASY ahead
2026-04-07	190.14	61.45	+2.09	CASY ahead
2026-04-06	191.66	60.95	+2.17	CASY ahead
2026-04-02	190.55	61.99	+2.11	CASY ahead
2026-04-01	188.94	61.28	+2.15	CASY ahead
2026-03-31	186.56	61.62	+2.11	CASY ahead
2026-03-30	180.65	60.52	+2.08	CASY ahead
2026-03-27	183.07	60.19	+2.17	CASY ahead
2026-03-26	182.45	61.30	+2.12	CASY ahead
2026-03-25	183.07	61.40	+2.15	CASY ahead
2026-03-24	176.61	60.95	+2.07	CASY ahead
2026-03-23	173.53	61.97	+1.96	CASY ahead
2026-03-20	169.07	60.99	+1.95	CASY ahead
2026-03-19	170.49	60.36	+2.03	CASY ahead
2026-03-18	171.61	61.25	+2.03	CASY ahead
2026-03-17	177.31	63.20	+2.05	CASY ahead
2026-03-16	172.57	62.88	+1.99	CASY ahead
2026-03-13	169.39	63.27	+1.92	CASY ahead
2026-03-12	172.71	63.05	+2.03	CASY ahead
2026-03-11	175.57	65.98	+1.94	CASY ahead
2026-03-10	176.83	67.39	+1.91	CASY ahead
2026-03-09	170.33	69.73	+1.66	CASY ahead
2026-03-06	170.34	70.04	+1.66	CASY ahead
2026-03-05	171.96	70.56	+1.68	CASY ahead
2026-03-04	175.29	70.42	+1.77	CASY ahead
2026-03-03	173.84	71.42	+1.70	CASY ahead
2026-03-02	176.09	71.10	+1.78	CASY ahead
2026-02-27	175.72	70.69	+1.82	CASY ahead
2026-02-26	174.89	68.95	+1.91	CASY ahead
2026-02-25	173.20	66.52	+2.03	CASY ahead
2026-02-24	174.67	65.48	+2.14	CASY ahead
2026-02-23	172.18	65.63	+2.10	CASY ahead
2026-02-20	171.02	67.71	+1.98	CASY ahead
2026-02-19	169.96	69.88	+1.85	CASY ahead
2026-02-18	168.57	70.06	+1.83	CASY ahead
2026-02-17	169.56	69.64	+1.89	CASY ahead
2026-02-13	170.67	69.58	+1.94	CASY ahead
2026-02-12	170.16	68.15	+2.03	CASY ahead
2026-02-11	166.29	73.33	+1.68	CASY ahead
2026-02-10	167.56	74.89	+1.64	CASY ahead
2026-02-09	168.90	74.80	+1.69	CASY ahead
2026-02-06	169.40	74.91	+1.71	CASY ahead
2026-02-05	167.38	74.02	+1.73	CASY ahead
2026-02-04	166.03	74.54	+1.69	CASY ahead
2026-02-03	164.39	72.27	+1.78	CASY ahead
2026-02-02	160.42	73.65	+1.63	CASY ahead
2026-01-30	155.45	75.32	+1.44	CASY ahead
2026-01-29	156.69	74.76	+1.51	CASY ahead
2026-01-28	157.71	75.39	+1.51	CASY ahead
2026-01-27	158.15	74.93	+1.56	CASY ahead
2026-01-26	158.18	77.10	+1.46	CASY ahead
2026-01-23	159.77	76.84	+1.53	CASY ahead
2026-01-22	158.61	76.60	+1.52	CASY ahead
2026-01-21	160.30	76.67	+1.57	CASY ahead
2026-01-20	163.67	75.56	+1.73	CASY ahead
2026-01-16	164.14	76.17	+1.72	CASY ahead
2026-01-15	163.37	76.56	+1.70	CASY ahead
2026-01-14	157.96	74.22	+1.70	CASY ahead
2026-01-13	154.97	74.00	+1.65	CASY ahead
2026-01-12	154.41	74.09	+1.65	CASY ahead
2026-01-09	152.20	73.92	+1.62	CASY ahead
2026-01-08	150.30	72.46	+1.66	CASY ahead
2026-01-07	147.02	70.88	+1.68	CASY ahead
2026-01-06	144.52	72.31	+1.54	CASY ahead
2026-01-05	144.63	71.52	+1.60	CASY ahead
2026-01-02	142.58	70.10	+1.64	CASY ahead
2025-12-31	141.67	72.66	+1.48	CASY ahead
2025-12-30	143.94	73.31	+1.52	CASY ahead
2025-12-29	145.31	73.29	+1.58	CASY ahead
2025-12-26	145.79	72.94	+1.62	CASY ahead
2025-12-24	145.54	72.57	+1.65	CASY ahead
2025-12-23	145.32	72.66	+1.66	CASY ahead
2025-12-22	147.02	73.05	+1.70	CASY ahead
2025-12-19	143.15	72.51	+1.63	CASY ahead
2025-12-18	140.34	72.79	+1.55	CASY ahead
2025-12-17	142.18	72.59	+1.63	CASY ahead
2025-12-16	141.69	72.66	+1.63	CASY ahead
2025-12-15	140.18	71.77	+1.65	CASY ahead
2025-12-12	138.43	71.77	+1.61	CASY ahead
2025-12-11	139.10	71.81	+1.65	CASY ahead
2025-12-10	136.66	72.74	+1.54	CASY ahead
2025-12-09	144.36	71.34	+1.86	CASY ahead
2025-12-08	145.21	71.29	+1.90	CASY ahead
2025-12-05	145.34	71.86	+1.89	CASY ahead
2025-12-04	144.34	72.01	+1.87	CASY ahead
2025-12-03	142.33	72.10	+1.83	CASY ahead
2025-12-02	145.28	72.31	+1.92	CASY ahead
2025-12-01	145.87	72.66	+1.94	CASY ahead
2025-11-28	146.22	72.35	+1.99	CASY ahead
2025-11-26	146.40	71.92	+2.04	CASY ahead
2025-11-25	144.93	72.49	+1.99	CASY ahead
2025-11-24	138.61	72.22	+1.84	CASY ahead
2025-11-21	143.61	75.59	+1.81	CASY ahead
2025-11-20	141.29	76.13	+1.73	CASY ahead
2025-11-19	142.69	76.78	+1.76	CASY ahead
2025-11-18	140.54	76.69	+1.71	CASY ahead
2025-11-17	137.47	76.71	+1.63	CASY ahead
2025-11-14	137.94	76.24	+1.69	CASY ahead
2025-11-13	137.55	77.25	+1.64	CASY ahead
2025-11-12	137.10	76.61	+1.68	CASY ahead
2025-11-11	138.27	76.73	+1.72	CASY ahead
2025-11-10	136.50	76.86	+1.68	CASY ahead
2025-11-07	136.76	75.19	+1.80	CASY ahead
2025-11-06	134.07	74.20	+1.79	CASY ahead
2025-11-05	134.73	77.82	+1.62	CASY ahead
2025-11-04	134.04	79.53	+1.51	CASY ahead
2025-11-03	131.65	79.81	+1.43	CASY ahead
2025-10-31	131.54	79.83	+1.43	CASY ahead
2025-10-30	132.91	78.84	+1.55	CASY ahead
2025-10-29	135.61	78.88	+1.66	CASY ahead
2025-10-28	136.46	81.79	+1.53	CASY ahead
2025-10-27	137.37	81.96	+1.57	CASY ahead
2025-10-24	136.14	82.89	+1.49	CASY ahead
2025-10-23	136.58	82.91	+1.52	CASY ahead
2025-10-22	139.73	83.39	+1.61	CASY ahead
2025-10-21	140.49	84.93	+1.57	CASY ahead
2025-10-20	144.66	83.07	+1.83	CASY ahead
2025-10-17	145.34	82.29	+1.92	CASY ahead
2025-10-16	143.88	81.77	+1.92	CASY ahead
2025-10-15	144.60	82.70	+1.91	CASY ahead
2025-10-14	143.84	83.09	+1.89	CASY ahead
2025-10-13	144.98	81.79	+2.02	CASY ahead
2025-10-10	142.68	81.44	+1.99	CASY ahead
2025-10-09	141.55	81.74	+1.96	CASY ahead
2025-10-08	141.93	83.39	+1.89	CASY ahead
2025-10-07	142.20	82.09	+2.01	CASY ahead
2025-10-06	143.23	82.50	+2.04	CASY ahead
2025-10-03	145.45	83.72	+2.07	CASY ahead
2025-10-02	143.89	82.72	+2.10	CASY ahead
2025-10-01	143.32	83.69	+2.05	CASY ahead
2025-09-30	144.90	83.46	+2.15	CASY ahead
2025-09-29	143.78	82.78	+2.18	CASY ahead
2025-09-26	140.34	83.28	+2.05	CASY ahead
2025-09-25	139.21	83.31	+2.03	CASY ahead
2025-09-24	140.22	84.24	+2.04	CASY ahead
2025-09-23	141.25	84.04	+2.11	CASY ahead
2025-09-22	140.32	84.22	+2.09	CASY ahead
2025-09-19	140.23	85.10	+2.06	CASY ahead
2025-09-18	139.36	84.37	+2.10	CASY ahead
2025-09-17	142.33	86.53	+2.11	CASY ahead
2025-09-16	143.84	86.43	+2.20	CASY ahead
2025-09-15	142.23	88.34	+2.04	CASY ahead
2025-09-12	141.97	89.83	+1.96	CASY ahead
2025-09-11	141.99	90.76	+1.93	CASY ahead
2025-09-10	138.02	90.05	+1.83	CASY ahead
2025-09-09	138.74	89.22	+1.94	CASY ahead
2025-09-08	133.67	90.48	+1.65	CASY ahead
2025-09-05	129.60	90.14	+1.51	CASY ahead
2025-09-04	127.69	92.74	+1.27	CASY ahead
2025-09-03	128.05	89.31	+1.52	CASY ahead
2025-09-02	127.64	89.98	+1.47	CASY ahead
2025-08-29	126.75	90.59	+1.40	CASY ahead
2025-08-28	127.13	90.48	+1.44	CASY ahead
2025-08-27	127.72	90.22	+1.50	CASY ahead
2025-08-26	127.33	90.28	+1.49	CASY ahead
2025-08-25	127.29	89.81	+1.53	CASY ahead
2025-08-22	128.99	90.87	+1.56	CASY ahead
2025-08-21	130.77	88.49	+1.82	CASY ahead
2025-08-20	131.59	88.36	+1.89	CASY ahead
2025-08-19	130.47	88.73	+1.83	CASY ahead
2025-08-18	129.74	87.90	+1.87	CASY ahead
2025-08-15	130.17	87.38	+1.95	CASY ahead
2025-08-14	130.25	86.97	+2.01	CASY ahead
2025-08-13	132.02	88.44	+2.02	CASY ahead
2025-08-12	133.19	87.60	+2.16	CASY ahead
2025-08-11	132.20	86.66	+2.21	CASY ahead
2025-08-08	133.02	85.72	+2.36	CASY ahead
2025-08-07	132.84	85.58	+2.39	CASY ahead
2025-08-06	133.66	87.44	+2.33	CASY ahead
2025-08-05	131.94	86.39	+2.36	CASY ahead
2025-08-04	134.12	84.89	+2.63	CASY ahead
2025-08-01	133.99	84.47	+2.71	CASY ahead
2025-07-31	133.32	84.13	+2.75	CASY ahead
2025-07-30	134.59	85.89	+2.72	CASY ahead
2025-07-29	133.78	86.21	+2.71	CASY ahead
2025-07-28	134.57	85.52	+2.86	CASY ahead
2025-07-25	135.21	86.66	+2.86	CASY ahead
2025-07-24	134.84	85.88	+2.97	CASY ahead
2025-07-23	134.31	86.92	+2.91	CASY ahead
2025-07-22	134.16	86.10	+3.04	CASY ahead
2025-07-21	132.84	85.43	+3.09	CASY ahead
2025-07-18	130.78	85.34	+3.04	CASY ahead
2025-07-17	132.17	85.17	+3.22	CASY ahead
2025-07-16	132.72	85.34	+3.32	CASY ahead
2025-07-15	132.68	85.19	+3.42	CASY ahead
2025-07-14	134.12	87.47	+3.37	CASY ahead
2025-07-11	132.41	88.08	+3.27	CASY ahead
2025-07-10	134.20	89.07	+3.38	CASY ahead
2025-07-09	133.88	88.42	+3.52	CASY ahead
2025-07-08	131.31	90.03	+3.25	CASY ahead
2025-07-07	134.86	90.63	+3.53	CASY ahead
2025-07-03	132.57	91.54	+3.36	CASY ahead
2025-07-02	130.95	91.09	+3.37	CASY ahead
2025-07-01	130.88	92.13	+3.34	CASY ahead
2025-06-30	130.79	91.07	+3.55	CASY ahead
2025-06-27	129.74	89.42	+3.77	CASY ahead
2025-06-26	129.18	89.53	+3.83	CASY ahead
2025-06-25	129.47	89.35	+4.01	CASY ahead
2025-06-24	130.95	90.29	+4.17	CASY ahead
2025-06-23	130.83	88.57	+4.59	CASY ahead
2025-06-20	128.23	89.03	+4.46	CASY ahead
2025-06-18	129.77	88.86	+4.86	CASY ahead
2025-06-17	130.11	89.09	+5.13	CASY ahead
2025-06-16	129.79	89.81	+5.27	CASY ahead
2025-06-13	129.73	90.18	+5.47	CASY ahead
2025-06-12	129.95	92.78	+5.28	CASY ahead
2025-06-11	128.04	93.73	+5.08	CASY ahead
2025-06-10	125.64	93.32	+5.03	CASY ahead
2025-06-09	112.60	93.08	+3.23	CASY ahead
2025-06-06	113.81	93.04	+3.47	CASY ahead
2025-06-05	114.24	93.06	+3.60	CASY ahead
2025-06-04	114.89	93.50	+3.70	CASY ahead
2025-06-03	112.44	94.67	+3.14	CASY ahead
2025-06-02	112.78	94.28	+3.31	CASY ahead
2025-05-30	112.20	95.55	+3.03	CASY ahead
2025-05-29	112.91	95.43	+3.22	CASY ahead
2025-05-28	114.70	96.60	+3.35	CASY ahead
2025-05-27	114.70	98.03	+3.12	CASY ahead
2025-05-23	114.25	99.61	+2.76	CASY ahead
2025-05-22	113.82	112.58	+0.43	near the usual relationship
2025-05-21	115.45	113.38	+0.56	CASY ahead
2025-05-20	117.55	114.37	+0.74	CASY ahead
2025-05-19	116.90	117.72	+0.13	near the usual relationship
2025-05-16	116.92	118.49	+0.03	near the usual relationship
2025-05-15	113.40	116.87	-0.25	near the usual relationship
2025-05-14	110.43	115.85	-0.53	CPRT ahead
2025-05-13	110.93	115.79	-0.43	near the usual relationship
2025-05-12	111.96	115.37	-0.21	near the usual relationship
2025-05-09	115.00	114.18	+0.41	near the usual relationship
2025-05-08	115.98	114.66	+0.48	near the usual relationship
2025-05-07	119.43	113.66	+1.08	CASY ahead
2025-05-06	119.75	112.84	+1.23	CASY ahead
2025-05-05	119.54	113.31	+1.14	CASY ahead
2025-05-02	117.56	113.62	+0.85	CASY ahead
2025-05-01	116.76	112.29	+0.92	CASY ahead
2025-04-30	118.57	113.27	+1.02	CASY ahead
2025-04-29	118.77	112.31	+1.17	CASY ahead
2025-04-28	116.42	111.01	+1.05	CASY ahead
2025-04-25	114.66	113.03	+0.59	CASY ahead
2025-04-24	114.65	115.01	+0.36	near the usual relationship
2025-04-23	116.72	113.30	+0.81	CASY ahead
2025-04-22	117.62	112.12	+1.06	CASY ahead
2025-04-21	115.78	109.00	+1.22	CASY ahead
2025-04-17	117.92	110.76	+1.26	CASY ahead
2025-04-16	117.22	110.32	+1.23	CASY ahead
2025-04-15	119.03	112.19	+1.21	CASY ahead
2025-04-14	118.10	111.04	+1.24	CASY ahead
2025-04-11	117.20	111.06	+1.15	CASY ahead
2025-04-10	112.27	108.87	+0.86	CASY ahead
2025-04-09	112.71	108.61	+0.94	CASY ahead
2025-04-08	106.75	101.32	+1.13	CASY ahead
2025-04-07	107.14	100.63	+1.26	CASY ahead
2025-04-04	106.58	101.17	+1.13	CASY ahead
2025-04-03	115.13	105.12	+1.59	CASY ahead
2025-04-02	113.77	106.66	+1.28	CASY ahead
2025-04-01	112.94	106.18	+1.25	CASY ahead
2025-03-31	111.25	105.03	+1.21	CASY ahead
2025-03-28	110.73	102.36	+1.45	CASY ahead
2025-03-27	110.39	103.27	+1.32	CASY ahead
2025-03-26	109.19	102.21	+1.32	CASY ahead
2025-03-25	106.99	103.17	+1.00	CASY ahead
2025-03-24	105.73	102.19	+0.98	CASY ahead
2025-03-21	103.55	99.54	+1.04	CASY ahead
2025-03-20	101.20	99.94	+0.76	CASY ahead
2025-03-19	103.10	100.00	+0.95	CASY ahead
2025-03-18	99.16	98.22	+0.74	CASY ahead
2025-03-17	102.44	99.76	+0.92	CASY ahead
2025-03-14	101.40	97.72	+1.03	CASY ahead
2025-03-13	98.69	97.07	+0.83	CASY ahead
2025-03-12	103.06	98.44	+1.12	CASY ahead
2025-03-11	97.07	98.20	+0.56	CASY ahead
2025-03-10	97.83	98.03	+0.66	CASY ahead
2025-03-07	102.20	99.74	+0.92	CASY ahead
2025-03-06	101.32	99.72	+0.85	CASY ahead
2025-03-05	103.76	100.98	+0.96	CASY ahead
2025-03-04	104.58	100.71	+1.08	CASY ahead
2025-03-03	104.58	101.43	+1.01	CASY ahead
2025-02-28	106.17	101.71	+1.14	CASY ahead
2025-02-27	104.85	102.51	+0.95	CASY ahead
2025-02-26	106.63	104.44	+0.94	CASY ahead
2025-02-25	108.35	105.36	+1.02	CASY ahead
2025-02-24	106.26	105.33	+0.84	CASY ahead
2025-02-21	103.96	105.03	+0.67	CASY ahead
2025-02-20	107.79	108.05	+0.75	CASY ahead
2025-02-19	109.24	110.88	+0.64	CASY ahead
2025-02-18	109.18	110.60	+0.66	CASY ahead
2025-02-14	110.77	110.23	+0.84	CASY ahead
2025-02-13	113.43	111.04	+1.00	CASY ahead
2025-02-12	111.59	109.54	+0.98	CASY ahead
2025-02-11	109.59	109.93	+0.78	CASY ahead
2025-02-10	110.77	108.82	+0.98	CASY ahead
2025-02-07	109.40	108.04	+0.94	CASY ahead
2025-02-06	111.56	109.86	+0.97	CASY ahead
2025-02-05	110.07	108.98	+0.93	CASY ahead
2025-02-04	107.90	107.39	+0.89	CASY ahead
2025-02-03	107.54	107.20	+0.88	CASY ahead
2025-01-31	108.10	107.52	+0.91	CASY ahead
2025-01-30	108.44	108.69	+0.85	CASY ahead
2025-01-29	107.55	106.38	+0.97	CASY ahead
2025-01-28	106.55	106.37	+0.90	CASY ahead
2025-01-27	107.65	106.96	+0.95	CASY ahead
2025-01-24	105.41	107.09	+0.75	CASY ahead
2025-01-23	104.52	106.92	+0.70	CASY ahead
2025-01-22	102.83	107.02	+0.55	CASY ahead
2025-01-21	103.14	106.61	+0.61	CASY ahead
2025-01-17	100.35	105.61	+0.46	near the usual relationship
2025-01-16	100.21	104.68	+0.53	CASY ahead
2025-01-15	100.29	104.68	+0.54	CASY ahead
2025-01-14	101.24	104.34	+0.66	CASY ahead
2025-01-13	100.61	103.25	+0.70	CASY ahead
2025-01-10	98.95	103.27	+0.56	CASY ahead
2025-01-08	100.18	105.38	+0.49	near the usual relationship
2025-01-07	99.78	104.38	+0.55	CASY ahead
2025-01-06	101.69	105.01	+0.67	CASY ahead
2025-01-03	101.99	105.62	+0.65	CASY ahead
2025-01-02	101.15	104.53	+0.67	CASY ahead
2024-12-31	101.56	106.51	+0.55	CASY ahead
2024-12-30	102.19	107.89	+0.49	near the usual relationship
2024-12-27	103.54	108.50	+0.57	CASY ahead
2024-12-26	103.93	109.63	+0.51	CASY ahead
2024-12-24	103.47	109.71	+0.47	near the usual relationship
2024-12-23	102.41	108.31	+0.50	CASY ahead
2024-12-20	103.33	108.05	+0.61	CASY ahead
2024-12-19	104.87	108.48	+0.71	CASY ahead
2024-12-18	104.10	109.45	+0.57	CASY ahead
2024-12-17	108.01	112.60	+0.65	CASY ahead
2024-12-16	108.81	113.42	+0.66	CASY ahead
2024-12-13	109.00	113.64	+0.66	CASY ahead
2024-12-12	109.11	115.22	+0.56	CASY ahead
2024-12-11	109.65	116.20	+0.53	CASY ahead
2024-12-10	106.85	114.18	+0.47	near the usual relationship
2024-12-09	107.17	114.64	+0.46	near the usual relationship
2024-12-06	108.23	115.22	+0.51	CASY ahead
2024-12-05	107.67	114.90	+0.49	near the usual relationship
2024-12-04	106.57	116.87	+0.26	near the usual relationship
2024-12-03	107.02	115.52	+0.40	near the usual relationship
2024-12-02	107.93	115.11	+0.51	CASY ahead
2024-11-29	107.88	117.65	+0.33	near the usual relationship
2024-11-27	107.90	117.87	+0.32	near the usual relationship
2024-11-26	109.31	118.41	+0.40	near the usual relationship
2024-11-25	109.37	118.32	+0.41	near the usual relationship
2024-11-22	109.67	116.37	+0.58	CASY ahead
2024-11-21	106.73	105.61	+1.18	CASY ahead
2024-11-20	106.10	102.86	+1.36	CASY ahead
2024-11-19	105.52	104.90	+1.16	CASY ahead
2024-11-18	103.70	105.10	+1.00	CASY ahead
2024-11-15	102.88	105.18	+0.94	CASY ahead
2024-11-14	103.99	106.42	+0.94	CASY ahead
2024-11-13	104.86	107.52	+0.93	CASY ahead
2024-11-12	106.90	106.12	+1.21	CASY ahead
2024-11-11	105.34	105.33	+1.16	CASY ahead
2024-11-08	105.82	104.16	+1.30	CASY ahead
2024-11-07	105.95	103.51	+1.38	CASY ahead
2024-11-06	104.88	102.90	+1.35	CASY ahead
2024-11-05	101.73	98.16	+1.51	CASY ahead
2024-11-04	97.68	97.34	+1.24	CASY ahead
2024-11-01	100.78	95.56	+1.68	CASY ahead
2024-10-31	100.99	95.53	+1.72	CASY ahead
2024-10-30	102.09	97.07	+1.69	CASY ahead
2024-10-29	102.14	96.84	+1.73	CASY ahead
2024-10-28	102.68	96.23	+1.86	CASY ahead
2024-10-25	100.25	95.97	+1.69	CASY ahead
2024-10-24	99.10	95.36	+1.66	CASY ahead
2024-10-23	100.09	95.32	+1.77	CASY ahead
2024-10-22	100.07	96.64	+1.66	CASY ahead
2024-10-21	100.50	97.55	+1.63	CASY ahead
2024-10-18	100.00	100.00	+1.37	CASY ahead

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): May 23, 2025 (CASY +0.4%, CPRT -11.5%); Jun 10, 2025 (CASY +11.6%, CPRT +0.3%); Feb 12, 2026 (CASY +2.3%, CPRT -7.1%); Jun 10, 2026 (CASY +20.3%, CPRT +0.2%); Sep 9, 2026 (CASY -14.2%, CPRT -1.8%).

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

CASY and CPRT at a glance

CASY Casey's General Stores Inc.

Listing: Nasdaq · SEC CIK 726958
Industry: Retail-Auto Dealers and Gas Stations · SIC 5500 Retail-Auto Dealers & Gasoline Stations
Market value: $25.6B
Price history: 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

CPRT Copart Inc. (DE)

Listing: Nasdaq · SEC CIK 900075
Industry: Retail-Auto Dealers and Gas Stations · SIC 5500 Retail-Auto Dealers & Gasoline Stations
Market value: $25.5B
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
CVNA / CASY	Watchlist	CASY by 0.96 sd	Retail-Auto Dealers and Gas Stations
CVNA / CPRT	Watchlist	neither	Retail-Auto Dealers and Gas Stations

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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.