SIC 3812 Search, Detection, Navigation, Guidance, Aeronautical Sys

Garmin Ltd. Common Stock (Switzerland) vs Northrop Grumman Corporation

WatchlistGRMN / NOCPrices through Oct 22, 2026

Why these are rivals: #1 and #2 by market value ($73B vs $55B) with SEC SIC 3812 (Search, Detection, Navigation, Guidance, Aeronautical Sys).

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: 0.06 (needs >= 0.60)
Mean reversion: ADF t-statistic of the spread: -0.61 (needs <= -2.873 (5% critical value))
Speed: half-life of the spread, sessions: 129.95 (needs <= 63)

Business leadership

NOC is the larger business

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

Year	GRMN	NOC	Larger
2025	$7.2B	$42.0B	NOC
2024	$6.3B	$41.0B	NOC
2023	$5.2B	$39.3B	NOC
2022	$4.9B	$36.6B	NOC
2021	$5.0B	$35.7B	NOC
2020	$4.2B	$36.8B	NOC

NOC led in every year with figures for both. Market value: GRMN $55.2B, NOC $72.5B.

Stock leadership

GRMN is ahead now

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

GRMN leads NOC by 1.30 standard deviations: +30.2% over its usual price ratio. 1 lead switch in the last year.

Price change	3 mo	6 mo	12 mo
GRMN	+21.5%	+13.3%	+17.5%
NOC	+1.9%	-6.0%	-7.8%

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: 0.06 (needs >= 0.60)
Fail: Mean reversion: ADF t-statistic of the spread: -0.61 (needs <= -2.873 (5% critical value))
Fail: Speed: half-life of the spread, sessions: 129.95 (needs <= 63)
Data: Both stocks current

The twins over two years

Prices side by side, and the gap between them

GRMN Garmin Ltd. Common Stock (Switzerland) NOC Northrop Grumman CorporationPrice 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: GRMN relative to NOC, against the 252 sessions before each day. Above 0: GRMN ahead; below 0: NOC ahead. Lines at +/-2 (idea) and +/-4 (stop).

Data table (504 sessions)

Date	GRMN index	NOC index	z	Ahead
2026-10-22	176.27	104.06	+1.30	GRMN ahead
2026-10-21	173.73	101.61	+1.36	GRMN ahead
2026-10-20	173.26	100.60	+1.41	GRMN ahead
2026-10-19	170.76	96.21	+1.57	GRMN ahead
2026-10-16	169.94	97.94	+1.47	GRMN ahead
2026-10-15	170.20	94.13	+1.69	GRMN ahead
2026-10-14	166.92	93.39	+1.65	GRMN ahead
2026-10-13	164.94	90.69	+1.76	GRMN ahead
2026-10-12	159.18	91.37	+1.55	GRMN ahead
2026-10-09	160.14	90.57	+1.64	GRMN ahead
2026-10-08	160.19	91.28	+1.62	GRMN ahead
2026-10-07	164.79	89.20	+1.90	GRMN ahead
2026-10-06	166.61	91.02	+1.88	GRMN ahead
2026-10-05	170.38	89.70	+2.09	GRMN ahead
2026-10-02	167.78	90.05	+2.01	GRMN ahead
2026-10-01	168.55	90.81	+2.02	GRMN ahead
2026-09-30	171.17	91.09	+2.11	GRMN ahead
2026-09-29	173.19	95.07	+1.97	GRMN ahead
2026-09-28	175.47	95.29	+2.05	GRMN ahead
2026-09-25	175.52	96.18	+2.02	GRMN ahead
2026-09-24	176.06	95.89	+2.08	GRMN ahead
2026-09-23	171.61	96.92	+1.90	GRMN ahead
2026-09-22	169.87	96.06	+1.91	GRMN ahead
2026-09-21	167.27	99.22	+1.65	GRMN ahead
2026-09-18	163.54	99.36	+1.53	GRMN ahead
2026-09-17	164.31	98.72	+1.61	GRMN ahead
2026-09-16	165.25	100.00	+1.58	GRMN ahead
2026-09-15	166.47	100.09	+1.63	GRMN ahead
2026-09-14	167.31	99.36	+1.72	GRMN ahead
2026-09-11	168.68	97.77	+1.88	GRMN ahead
2026-09-10	162.43	97.77	+1.67	GRMN ahead
2026-09-09	162.42	97.13	+1.73	GRMN ahead
2026-09-08	164.51	97.70	+1.78	GRMN ahead
2026-09-04	165.31	97.02	+1.88	GRMN ahead
2026-09-03	165.40	99.52	+1.74	GRMN ahead
2026-09-02	164.72	98.69	+1.78	GRMN ahead
2026-09-01	164.20	100.40	+1.67	GRMN ahead
2026-08-31	169.54	101.68	+1.81	GRMN ahead
2026-08-28	170.18	102.78	+1.79	GRMN ahead
2026-08-27	172.97	102.70	+1.91	GRMN ahead
2026-08-26	172.47	103.61	+1.86	GRMN ahead
2026-08-25	172.13	102.21	+1.95	GRMN ahead
2026-08-24	173.80	103.48	+1.96	GRMN ahead
2026-08-21	175.95	103.81	+2.04	GRMN ahead
2026-08-20	174.90	106.23	+1.88	GRMN ahead
2026-08-19	176.44	109.81	+1.73	GRMN ahead
2026-08-18	177.49	110.99	+1.72	GRMN ahead
2026-08-17	183.49	107.42	+2.18	GRMN ahead
2026-08-14	185.11	110.38	+2.08	GRMN ahead
2026-08-13	186.14	108.28	+2.28	GRMN ahead
2026-08-12	184.97	108.77	+2.24	GRMN ahead
2026-08-11	184.78	108.46	+2.28	GRMN ahead
2026-08-10	186.87	108.87	+2.37	GRMN ahead
2026-08-07	185.52	107.68	+2.43	GRMN ahead
2026-08-06	180.13	106.96	+2.30	GRMN ahead
2026-08-05	180.54	105.03	+2.49	GRMN ahead
2026-08-04	183.41	103.91	+2.73	GRMN ahead
2026-08-03	181.86	103.33	+2.76	GRMN ahead
2026-07-31	175.31	102.20	+2.61	GRMN ahead
2026-07-30	177.56	100.76	+2.87	GRMN ahead
2026-07-29	175.93	100.80	+2.85	GRMN ahead
2026-07-28	151.36	103.47	+1.48	GRMN ahead
2026-07-27	144.69	103.16	+1.16	GRMN ahead
2026-07-24	145.02	102.16	+1.26	GRMN ahead
2026-07-23	143.27	100.51	+1.30	GRMN ahead
2026-07-22	143.52	98.96	+1.44	GRMN ahead
2026-07-21	141.22	96.51	+1.51	GRMN ahead
2026-07-20	146.07	98.71	+1.61	GRMN ahead
2026-07-17	148.92	98.26	+1.81	GRMN ahead
2026-07-16	149.77	97.71	+1.92	GRMN ahead
2026-07-15	144.27	98.95	+1.52	GRMN ahead
2026-07-14	144.04	99.60	+1.47	GRMN ahead
2026-07-13	145.37	102.08	+1.35	GRMN ahead
2026-07-10	145.07	101.67	+1.37	GRMN ahead
2026-07-09	145.91	100.27	+1.53	GRMN ahead
2026-07-08	145.32	102.70	+1.31	GRMN ahead
2026-07-07	148.39	103.44	+1.43	GRMN ahead
2026-07-06	146.33	103.20	+1.34	GRMN ahead
2026-07-02	143.23	103.43	+1.14	GRMN ahead
2026-07-01	141.81	97.96	+1.52	GRMN ahead
2026-06-30	141.75	95.95	+1.69	GRMN ahead
2026-06-29	139.49	93.45	+1.79	GRMN ahead
2026-06-26	138.75	94.20	+1.69	GRMN ahead
2026-06-25	140.48	94.07	+1.82	GRMN ahead
2026-06-24	143.23	94.77	+1.94	GRMN ahead
2026-06-23	141.07	96.69	+1.65	GRMN ahead
2026-06-22	141.03	95.58	+1.77	GRMN ahead
2026-06-18	139.75	98.25	+1.46	GRMN ahead
2026-06-17	138.38	103.65	+0.92	GRMN ahead
2026-06-16	140.21	103.85	+1.02	GRMN ahead
2026-06-15	142.12	102.63	+1.24	GRMN ahead
2026-06-12	142.08	103.68	+1.15	GRMN ahead
2026-06-11	142.37	104.09	+1.14	GRMN ahead
2026-06-10	138.27	102.14	+1.05	GRMN ahead
2026-06-09	141.93	103.37	+1.17	GRMN ahead
2026-06-08	140.37	101.89	+1.21	GRMN ahead
2026-06-05	141.17	102.56	+1.20	GRMN ahead
2026-06-04	144.38	102.71	+1.39	GRMN ahead
2026-06-03	141.99	99.11	+1.56	GRMN ahead
2026-06-02	143.83	101.09	+1.51	GRMN ahead
2026-06-01	141.31	101.59	+1.31	GRMN ahead
2026-05-29	139.59	106.20	+0.82	GRMN ahead
2026-05-28	141.04	105.37	+0.97	GRMN ahead
2026-05-27	142.00	103.87	+1.16	GRMN ahead
2026-05-26	142.34	104.90	+1.09	GRMN ahead
2026-05-22	143.64	104.67	+1.19	GRMN ahead
2026-05-21	143.08	103.92	+1.23	GRMN ahead
2026-05-20	141.71	104.03	+1.13	GRMN ahead
2026-05-19	136.47	104.81	+0.73	GRMN ahead
2026-05-18	135.39	103.62	+0.76	GRMN ahead
2026-05-15	134.71	101.87	+0.86	GRMN ahead
2026-05-14	139.89	103.36	+1.06	GRMN ahead
2026-05-13	138.45	103.96	+0.92	GRMN ahead
2026-05-12	141.41	105.18	+1.01	GRMN ahead
2026-05-11	144.64	103.28	+1.37	GRMN ahead
2026-05-08	143.27	103.53	+1.28	GRMN ahead
2026-05-07	144.35	104.05	+1.31	GRMN ahead
2026-05-06	144.90	105.43	+1.24	GRMN ahead
2026-05-05	140.02	105.24	+0.95	GRMN ahead
2026-05-04	142.38	106.82	+0.97	GRMN ahead
2026-05-01	144.66	107.04	+1.10	GRMN ahead
2026-04-30	149.86	109.17	+1.24	GRMN ahead
2026-04-29	151.02	107.84	+1.43	GRMN ahead
2026-04-28	147.88	108.86	+1.16	GRMN ahead
2026-04-27	153.56	108.38	+1.54	GRMN ahead
2026-04-24	154.79	108.35	+1.62	GRMN ahead
2026-04-23	155.63	110.71	+1.48	GRMN ahead
2026-04-22	159.08	111.08	+1.67	GRMN ahead
2026-04-21	158.43	115.14	+1.32	GRMN ahead
2026-04-20	159.64	123.77	+0.74	GRMN ahead
2026-04-17	159.58	125.33	+0.62	GRMN ahead
2026-04-16	157.75	126.75	+0.42	near the usual relationship
2026-04-15	158.63	127.85	+0.40	near the usual relationship
2026-04-14	157.82	128.14	+0.33	near the usual relationship
2026-04-13	156.09	128.36	+0.22	near the usual relationship
2026-04-10	153.29	126.93	+0.16	near the usual relationship
2026-04-09	153.08	130.10	-0.08	near the usual relationship
2026-04-08	150.85	129.52	-0.17	near the usual relationship
2026-04-07	143.97	130.09	-0.64	NOC ahead
2026-04-06	144.88	131.09	-0.65	NOC ahead
2026-04-02	141.81	132.35	-0.94	NOC ahead
2026-04-01	141.77	131.31	-0.88	NOC ahead
2026-03-31	138.45	128.53	-0.91	NOC ahead
2026-03-30	134.86	126.53	-1.01	NOC ahead
2026-03-27	137.34	127.92	-0.95	NOC ahead
2026-03-26	140.87	130.37	-0.90	NOC ahead
2026-03-25	146.07	130.22	-0.57	NOC ahead
2026-03-24	143.88	128.52	-0.60	NOC ahead
2026-03-23	142.45	128.11	-0.66	NOC ahead
2026-03-20	138.66	133.19	-1.26	NOC ahead
2026-03-19	140.30	134.54	-1.26	NOC ahead
2026-03-18	138.20	136.56	-1.54	NOC ahead
2026-03-17	140.29	136.41	-1.41	NOC ahead
2026-03-16	140.13	138.65	-1.58	NOC ahead
2026-03-13	139.35	138.23	-1.62	NOC ahead
2026-03-12	140.67	138.72	-1.58	NOC ahead
2026-03-11	140.88	138.13	-1.54	NOC ahead
2026-03-10	144.01	138.47	-1.37	NOC ahead
2026-03-09	144.78	140.80	-1.48	NOC ahead
2026-03-06	145.29	142.45	-1.57	NOC ahead
2026-03-05	143.32	139.42	-1.51	NOC ahead
2026-03-04	149.89	142.02	-1.28	NOC ahead
2026-03-03	149.59	143.02	-1.36	NOC ahead
2026-03-02	152.26	144.69	-1.32	NOC ahead
2026-02-27	150.87	136.47	-0.88	NOC ahead
2026-02-26	151.66	133.93	-0.68	NOC ahead
2026-02-25	150.37	132.57	-0.67	NOC ahead
2026-02-24	150.07	137.10	-0.98	NOC ahead
2026-02-23	147.45	136.66	-1.11	NOC ahead
2026-02-20	148.53	136.32	-1.03	NOC ahead
2026-02-19	143.10	138.83	-1.50	NOC ahead
2026-02-18	141.70	136.56	-1.45	NOC ahead
2026-02-17	129.48	132.09	-1.94	NOC ahead
2026-02-13	128.14	132.36	-2.07	NOC ahead
2026-02-12	121.27	130.95	-2.48	NOC ahead
2026-02-11	123.27	127.89	-2.17	NOC ahead
2026-02-10	124.36	129.05	-2.20	NOC ahead
2026-02-09	122.94	131.51	-2.49	NOC ahead
2026-02-06	120.74	133.60	-2.84	NOC ahead
2026-02-05	118.56	131.22	-2.89	NOC ahead
2026-02-04	122.48	129.95	-2.56	NOC ahead
2026-02-03	120.07	132.82	-2.99	NOC ahead
2026-02-02	123.48	129.06	-2.52	NOC ahead
2026-01-30	120.32	130.42	-2.91	NOC ahead
2026-01-29	122.12	131.00	-2.87	NOC ahead
2026-01-28	122.02	129.83	-2.85	NOC ahead
2026-01-27	122.21	127.87	-2.74	NOC ahead
2026-01-26	123.48	124.53	-2.42	NOC ahead
2026-01-23	123.03	126.78	-2.68	NOC ahead
2026-01-22	123.00	126.31	-2.69	NOC ahead
2026-01-21	122.07	125.13	-2.72	NOC ahead
2026-01-20	119.78	123.83	-2.86	NOC ahead
2026-01-16	126.39	125.64	-2.49	NOC ahead
2026-01-15	126.86	123.33	-2.29	NOC ahead
2026-01-14	126.22	123.05	-2.36	NOC ahead
2026-01-13	127.65	117.84	-1.80	NOC ahead
2026-01-12	126.20	118.56	-2.00	NOC ahead
2026-01-09	126.66	116.58	-1.80	NOC ahead
2026-01-08	127.38	111.30	-1.26	NOC ahead
2026-01-07	125.72	108.71	-1.15	NOC ahead
2026-01-06	124.93	115.04	-1.85	NOC ahead
2026-01-05	121.59	115.17	-2.18	NOC ahead
2026-01-02	120.80	110.34	-1.81	NOC ahead
2025-12-31	121.05	107.43	-1.50	NOC ahead
2025-12-30	122.38	108.25	-1.48	NOC ahead
2025-12-29	122.69	108.85	-1.53	NOC ahead
2025-12-26	122.63	108.78	-1.54	NOC ahead
2025-12-24	122.33	109.71	-1.68	NOC ahead
2025-12-23	121.27	109.28	-1.75	NOC ahead
2025-12-22	122.81	110.15	-1.72	NOC ahead
2025-12-19	120.31	107.10	-1.65	NOC ahead
2025-12-18	120.66	105.41	-1.45	NOC ahead
2025-12-17	120.22	106.29	-1.60	NOC ahead
2025-12-16	123.55	107.15	-1.39	NOC ahead
2025-12-15	123.66	108.48	-1.54	NOC ahead
2025-12-12	124.33	107.34	-1.37	NOC ahead
2025-12-11	125.78	105.51	-1.05	NOC ahead
2025-12-10	125.48	104.63	-0.99	NOC ahead
2025-12-09	120.68	103.74	-1.34	NOC ahead
2025-12-08	120.10	104.29	-1.47	NOC ahead
2025-12-05	121.49	103.43	-1.26	NOC ahead
2025-12-04	120.59	104.18	-1.44	NOC ahead
2025-12-03	119.02	104.24	-1.61	NOC ahead
2025-12-02	117.66	103.05	-1.63	NOC ahead
2025-12-01	117.48	102.77	-1.63	NOC ahead
2025-11-28	116.55	107.81	-2.31	NOC ahead
2025-11-26	116.24	106.84	-2.27	NOC ahead
2025-11-25	115.13	107.28	-2.47	NOC ahead
2025-11-24	114.81	106.55	-2.46	NOC ahead
2025-11-21	114.71	106.77	-2.54	NOC ahead
2025-11-20	111.65	106.89	-2.94	NOC ahead
2025-11-19	113.15	106.45	-2.78	NOC ahead
2025-11-18	113.29	106.78	-2.86	NOC ahead
2025-11-17	113.26	106.07	-2.83	NOC ahead
2025-11-14	115.84	105.13	-2.45	NOC ahead
2025-11-13	116.40	105.13	-2.42	NOC ahead
2025-11-12	118.52	105.23	-2.22	NOC ahead
2025-11-11	119.14	106.77	-2.38	NOC ahead
2025-11-10	120.98	106.06	-2.10	NOC ahead
2025-11-07	120.04	107.13	-2.38	NOC ahead
2025-11-06	121.72	107.76	-2.29	NOC ahead
2025-11-05	122.62	107.48	-2.17	NOC ahead
2025-11-04	122.60	108.73	-2.37	NOC ahead
2025-11-03	125.64	108.41	-1.99	NOC ahead
2025-10-31	127.66	109.92	-1.93	NOC ahead
2025-10-30	128.28	109.01	-1.70	NOC ahead
2025-10-29	131.05	110.21	-1.50	NOC ahead
2025-10-28	148.04	112.11	-0.08	near the usual relationship
2025-10-27	150.03	112.28	+0.09	near the usual relationship
2025-10-24	149.45	114.09	-0.14	near the usual relationship
2025-10-23	149.28	114.12	-0.14	near the usual relationship
2025-10-22	147.72	112.38	-0.07	near the usual relationship
2025-10-21	149.98	112.92	+0.06	near the usual relationship
2025-10-20	148.66	113.42	-0.07	near the usual relationship
2025-10-17	148.58	112.00	+0.07	near the usual relationship
2025-10-16	147.24	112.85	-0.10	near the usual relationship
2025-10-15	148.84	114.72	-0.14	near the usual relationship
2025-10-14	148.78	118.11	-0.44	near the usual relationship
2025-10-13	149.98	116.60	-0.21	near the usual relationship
2025-10-10	148.01	117.46	-0.40	near the usual relationship
2025-10-09	153.06	119.63	-0.23	near the usual relationship
2025-10-08	155.01	120.19	-0.14	near the usual relationship
2025-10-07	152.95	117.11	-0.01	near the usual relationship
2025-10-06	153.74	116.53	+0.10	near the usual relationship
2025-10-03	153.40	114.84	+0.23	near the usual relationship
2025-10-02	153.80	113.98	+0.33	near the usual relationship
2025-10-01	152.27	114.06	+0.24	near the usual relationship
2025-09-30	146.93	114.79	-0.15	near the usual relationship
2025-09-29	146.52	111.91	+0.07	near the usual relationship
2025-09-26	143.50	112.01	-0.12	near the usual relationship
2025-09-25	141.25	110.36	-0.12	near the usual relationship
2025-09-24	141.09	110.45	-0.13	near the usual relationship
2025-09-23	141.66	108.72	+0.05	near the usual relationship
2025-09-22	141.06	108.55	+0.04	near the usual relationship
2025-09-19	140.30	107.96	+0.05	near the usual relationship
2025-09-18	141.57	108.09	+0.12	near the usual relationship
2025-09-17	139.74	108.72	-0.04	near the usual relationship
2025-09-16	141.23	109.15	+0.03	near the usual relationship
2025-09-15	140.73	108.24	+0.07	near the usual relationship
2025-09-12	142.07	108.51	+0.14	near the usual relationship
2025-09-11	143.92	109.83	+0.15	near the usual relationship
2025-09-10	140.80	109.25	+0.01	near the usual relationship
2025-09-09	142.32	107.69	+0.23	near the usual relationship
2025-09-08	142.92	109.63	+0.12	near the usual relationship
2025-09-05	141.66	109.42	+0.07	near the usual relationship
2025-09-04	141.82	109.23	+0.10	near the usual relationship
2025-09-03	141.37	109.46	+0.06	near the usual relationship
2025-09-02	139.81	111.03	-0.15	near the usual relationship
2025-08-29	144.30	111.16	+0.11	near the usual relationship
2025-08-28	143.84	110.76	+0.12	near the usual relationship
2025-08-27	140.55	110.52	-0.05	near the usual relationship
2025-08-26	138.80	111.72	-0.24	near the usual relationship
2025-08-25	138.87	110.54	-0.14	near the usual relationship
2025-08-22	140.78	111.61	-0.11	near the usual relationship
2025-08-21	137.00	112.51	-0.39	near the usual relationship
2025-08-20	137.34	111.63	-0.30	near the usual relationship
2025-08-19	139.31	110.44	-0.09	near the usual relationship
2025-08-18	138.80	110.18	-0.10	near the usual relationship
2025-08-15	138.64	110.02	-0.09	near the usual relationship
2025-08-14	140.27	109.97	+0.02	near the usual relationship
2025-08-13	141.17	109.66	+0.10	near the usual relationship
2025-08-12	139.01	109.42	-0.01	near the usual relationship
2025-08-11	136.65	109.32	-0.13	near the usual relationship
2025-08-08	138.67	109.48	-0.02	near the usual relationship
2025-08-07	136.63	110.66	-0.21	near the usual relationship
2025-08-06	137.30	111.02	-0.20	near the usual relationship
2025-08-05	136.20	111.15	-0.26	near the usual relationship
2025-08-04	134.58	111.11	-0.35	near the usual relationship
2025-08-01	130.52	110.48	-0.55	NOC ahead
2025-07-31	130.54	108.63	-0.41	near the usual relationship
2025-07-30	132.17	107.92	-0.26	near the usual relationship
2025-07-29	142.80	107.99	+0.34	near the usual relationship
2025-07-28	141.04	107.13	+0.31	near the usual relationship
2025-07-25	140.61	107.34	+0.27	near the usual relationship
2025-07-24	138.27	107.10	+0.16	near the usual relationship
2025-07-23	138.44	107.10	+0.17	near the usual relationship
2025-07-22	135.88	106.22	+0.09	near the usual relationship
2025-07-21	134.95	97.08	+0.74	GRMN ahead
2025-07-18	135.99	97.79	+0.75	GRMN ahead
2025-07-17	134.50	98.69	+0.59	GRMN ahead
2025-07-16	131.76	97.91	+0.50	GRMN ahead
2025-07-15	128.98	97.37	+0.38	near the usual relationship
2025-07-14	129.74	98.18	+0.36	near the usual relationship
2025-07-11	128.85	96.95	+0.41	near the usual relationship
2025-07-10	129.97	96.81	+0.49	near the usual relationship
2025-07-09	129.56	95.70	+0.56	GRMN ahead
2025-07-08	127.35	95.11	+0.48	near the usual relationship
2025-07-07	127.96	95.69	+0.47	near the usual relationship
2025-07-03	128.16	94.99	+0.54	GRMN ahead
2025-07-02	127.34	93.99	+0.58	GRMN ahead
2025-07-01	125.99	94.86	+0.43	near the usual relationship
2025-06-30	124.55	94.20	+0.40	near the usual relationship
2025-06-27	124.33	93.07	+0.48	near the usual relationship
2025-06-26	122.42	93.00	+0.37	near the usual relationship
2025-06-25	121.46	91.73	+0.42	near the usual relationship
2025-06-24	122.38	91.18	+0.53	GRMN ahead
2025-06-23	120.38	94.14	+0.15	near the usual relationship
2025-06-20	119.35	93.77	+0.12	near the usual relationship
2025-06-18	118.33	93.19	+0.10	near the usual relationship
2025-06-17	118.02	94.95	-0.06	near the usual relationship
2025-06-16	121.69	93.73	+0.28	near the usual relationship
2025-06-13	120.13	97.35	-0.12	near the usual relationship
2025-06-12	124.35	93.66	+0.46	near the usual relationship
2025-06-11	124.79	92.03	+0.63	GRMN ahead
2025-06-10	125.38	92.09	+0.66	GRMN ahead
2025-06-09	124.29	92.57	+0.56	GRMN ahead
2025-06-06	123.79	92.20	+0.56	GRMN ahead
2025-06-05	122.62	91.96	+0.51	GRMN ahead
2025-06-04	122.30	92.56	+0.45	near the usual relationship
2025-06-03	122.03	91.98	+0.48	near the usual relationship
2025-06-02	121.11	91.07	+0.51	GRMN ahead
2025-05-30	121.12	91.33	+0.49	near the usual relationship
2025-05-29	121.04	90.32	+0.58	GRMN ahead
2025-05-28	120.50	89.55	+0.61	GRMN ahead
2025-05-27	122.63	89.58	+0.75	GRMN ahead
2025-05-23	119.70	88.82	+0.64	GRMN ahead
2025-05-22	120.29	89.09	+0.66	GRMN ahead
2025-05-21	119.79	89.28	+0.61	GRMN ahead
2025-05-20	121.59	89.79	+0.69	GRMN ahead
2025-05-19	122.27	88.76	+0.83	GRMN ahead
2025-05-16	122.50	89.14	+0.82	GRMN ahead
2025-05-15	120.49	88.37	+0.76	GRMN ahead
2025-05-14	119.69	85.97	+0.93	GRMN ahead
2025-05-13	119.61	88.67	+0.69	GRMN ahead
2025-05-12	118.14	90.27	+0.46	near the usual relationship
2025-05-09	114.23	90.92	+0.14	near the usual relationship
2025-05-08	113.62	91.25	+0.08	near the usual relationship
2025-05-07	112.34	91.57	-0.03	near the usual relationship
2025-05-06	111.67	91.84	-0.10	near the usual relationship
2025-05-05	113.47	92.94	-0.07	near the usual relationship
2025-05-02	114.44	92.58	+0.04	near the usual relationship
2025-05-01	111.46	91.69	-0.08	near the usual relationship
2025-04-30	111.51	91.66	-0.07	near the usual relationship
2025-04-29	121.79	90.83	+0.67	GRMN ahead
2025-04-28	119.72	91.05	+0.53	GRMN ahead
2025-04-25	118.73	89.15	+0.63	GRMN ahead
2025-04-24	118.81	87.24	+0.80	GRMN ahead
2025-04-23	115.66	89.05	+0.46	near the usual relationship
2025-04-22	114.22	87.43	+0.51	GRMN ahead
2025-04-21	111.49	100.10	-0.64	NOC ahead
2025-04-17	113.74	101.81	-0.62	NOC ahead
2025-04-16	112.76	101.27	-0.64	NOC ahead
2025-04-15	114.76	99.73	-0.39	near the usual relationship
2025-04-14	114.63	100.95	-0.48	near the usual relationship
2025-04-11	113.25	100.60	-0.54	NOC ahead
2025-04-10	111.49	97.23	-0.41	near the usual relationship
2025-04-09	115.00	96.52	-0.13	near the usual relationship
2025-04-08	103.61	92.69	-0.58	NOC ahead
2025-04-07	107.92	90.73	-0.13	near the usual relationship
2025-04-04	106.49	91.47	-0.28	near the usual relationship
2025-04-03	110.60	97.06	-0.42	near the usual relationship
2025-04-02	130.13	96.49	+0.76	GRMN ahead
2025-04-01	129.83	96.67	+0.74	GRMN ahead
2025-03-31	129.57	96.46	+0.75	GRMN ahead
2025-03-28	127.50	96.50	+0.64	GRMN ahead
2025-03-27	129.47	96.80	+0.73	GRMN ahead
2025-03-26	129.39	95.54	+0.82	GRMN ahead
2025-03-25	130.43	95.45	+0.89	GRMN ahead
2025-03-24	127.98	93.27	+0.93	GRMN ahead
2025-03-21	125.43	92.45	+0.86	GRMN ahead
2025-03-20	124.54	92.17	+0.84	GRMN ahead
2025-03-19	124.58	92.60	+0.81	GRMN ahead
2025-03-18	123.30	92.28	+0.77	GRMN ahead
2025-03-17	126.77	92.41	+0.96	GRMN ahead
2025-03-14	127.64	91.36	+1.09	GRMN ahead
2025-03-13	124.94	92.43	+0.87	GRMN ahead
2025-03-12	128.66	89.51	+1.30	GRMN ahead
2025-03-11	127.23	93.09	+0.97	GRMN ahead
2025-03-10	128.49	93.34	+1.02	GRMN ahead
2025-03-07	130.89	91.66	+1.28	GRMN ahead
2025-03-06	132.42	89.53	+1.54	GRMN ahead
2025-03-05	134.15	89.34	+1.65	GRMN ahead
2025-03-04	131.35	87.38	+1.67	GRMN ahead
2025-03-03	134.99	89.19	+1.74	GRMN ahead
2025-02-28	136.61	86.99	+2.01	GRMN ahead
2025-02-27	133.70	86.66	+1.91	GRMN ahead
2025-02-26	135.41	85.70	+2.09	GRMN ahead
2025-02-25	134.88	86.85	+1.99	GRMN ahead
2025-02-24	132.96	84.77	+2.08	GRMN ahead
2025-02-21	134.09	84.39	+2.19	GRMN ahead
2025-02-20	136.66	82.54	+2.50	GRMN ahead
2025-02-19	144.37	81.66	+3.01	GRMN ahead
2025-02-18	128.17	83.15	+2.06	GRMN ahead
2025-02-14	126.88	82.69	+2.05	GRMN ahead
2025-02-13	125.45	85.73	+1.72	GRMN ahead
2025-02-12	125.09	88.71	+1.47	GRMN ahead
2025-02-11	126.25	89.27	+1.50	GRMN ahead
2025-02-10	128.73	89.37	+1.64	GRMN ahead
2025-02-07	129.89	88.28	+1.80	GRMN ahead
2025-02-06	131.15	87.90	+1.91	GRMN ahead
2025-02-05	130.59	88.99	+1.81	GRMN ahead
2025-02-04	130.22	90.88	+1.65	GRMN ahead
2025-02-03	128.59	91.89	+1.50	GRMN ahead
2025-01-31	128.80	91.80	+1.53	GRMN ahead
2025-01-30	129.51	91.07	+1.64	GRMN ahead
2025-01-29	127.90	90.72	+1.59	GRMN ahead
2025-01-28	129.96	91.68	+1.64	GRMN ahead
2025-01-27	128.24	94.81	+1.32	GRMN ahead
2025-01-24	127.84	93.64	+1.40	GRMN ahead
2025-01-23	128.64	94.16	+1.41	GRMN ahead
2025-01-22	129.01	94.65	+1.40	GRMN ahead
2025-01-21	129.98	95.04	+1.44	GRMN ahead
2025-01-17	128.71	90.88	+1.68	GRMN ahead
2025-01-16	128.03	90.66	+1.68	GRMN ahead
2025-01-15	127.37	88.98	+1.78	GRMN ahead
2025-01-14	126.67	89.58	+1.71	GRMN ahead
2025-01-13	124.38	89.00	+1.64	GRMN ahead
2025-01-10	124.81	86.42	+1.88	GRMN ahead
2025-01-08	126.14	87.08	+1.91	GRMN ahead
2025-01-07	124.45	85.23	+1.98	GRMN ahead
2025-01-06	124.02	85.75	+1.93	GRMN ahead
2025-01-03	123.61	88.14	+1.74	GRMN ahead
2025-01-02	122.06	88.17	+1.66	GRMN ahead
2024-12-31	123.08	88.41	+1.72	GRMN ahead
2024-12-30	123.80	87.89	+1.81	GRMN ahead
2024-12-27	124.93	88.80	+1.82	GRMN ahead
2024-12-26	125.71	88.97	+1.87	GRMN ahead
2024-12-24	125.92	88.75	+1.92	GRMN ahead
2024-12-23	124.90	88.02	+1.94	GRMN ahead
2024-12-20	124.71	88.46	+1.92	GRMN ahead
2024-12-19	122.58	88.01	+1.85	GRMN ahead
2024-12-18	123.06	88.11	+1.89	GRMN ahead
2024-12-17	125.84	90.49	+1.88	GRMN ahead
2024-12-16	128.07	90.92	+1.99	GRMN ahead
2024-12-13	128.54	90.43	+2.07	GRMN ahead
2024-12-12	128.88	90.72	+2.09	GRMN ahead
2024-12-11	131.74	89.61	+2.36	GRMN ahead
2024-12-10	130.81	90.47	+2.26	GRMN ahead
2024-12-09	130.88	90.27	+2.31	GRMN ahead
2024-12-06	130.43	89.23	+2.40	GRMN ahead
2024-12-05	129.25	90.35	+2.27	GRMN ahead
2024-12-04	128.76	91.68	+2.16	GRMN ahead
2024-12-03	126.78	91.41	+2.09	GRMN ahead
2024-12-02	127.38	91.33	+2.15	GRMN ahead
2024-11-29	126.86	92.25	+2.07	GRMN ahead
2024-11-27	126.56	92.14	+2.08	GRMN ahead
2024-11-26	127.01	92.02	+2.14	GRMN ahead
2024-11-25	128.01	91.42	+2.27	GRMN ahead
2024-11-22	125.51	93.61	+1.97	GRMN ahead
2024-11-21	124.78	93.52	+1.95	GRMN ahead
2024-11-20	122.68	92.69	+1.91	GRMN ahead
2024-11-19	123.74	92.51	+2.01	GRMN ahead
2024-11-18	124.88	92.07	+2.13	GRMN ahead
2024-11-15	124.38	93.07	+2.04	GRMN ahead
2024-11-14	126.13	94.26	+2.07	GRMN ahead
2024-11-13	127.09	98.05	+1.85	GRMN ahead
2024-11-12	127.45	100.11	+1.73	GRMN ahead
2024-11-11	126.84	100.55	+1.67	GRMN ahead
2024-11-08	126.94	99.66	+1.76	GRMN ahead
2024-11-07	125.52	98.08	+1.81	GRMN ahead
2024-11-06	125.12	98.56	+1.76	GRMN ahead
2024-11-05	121.87	96.63	+1.72	GRMN ahead
2024-11-04	119.49	95.60	+1.67	GRMN ahead
2024-11-01	118.26	95.51	+1.61	GRMN ahead
2024-10-31	118.36	95.90	+1.58	GRMN ahead
2024-10-30	122.28	95.21	+1.88	GRMN ahead
2024-10-29	99.22	94.96	+0.39	near the usual relationship
2024-10-28	99.23	96.49	+0.28	near the usual relationship
2024-10-25	96.85	97.84	+0.02	near the usual relationship
2024-10-24	96.63	98.66	-0.04	near the usual relationship
2024-10-23	96.42	97.29	+0.05	near the usual relationship
2024-10-22	97.27	98.00	+0.07	near the usual relationship
2024-10-21	99.34	99.79	+0.10	near the usual relationship
2024-10-18	100.00	100.00	+0.14	near the usual relationship

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Oct 30, 2024 (GRMN +23.3%, NOC +0.3%); Feb 19, 2025 (GRMN +12.6%, NOC -1.8%); Apr 3, 2025 (GRMN -15.0%, NOC +0.6%); Apr 22, 2025 (GRMN +2.5%, NOC -12.7%); Jul 29, 2026 (GRMN +16.2%, NOC -2.6%). Upcoming earnings: GRMN Oct 28, 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

GRMN and NOC at a glance

GRMN Garmin Ltd. Common Stock (Switzerland)

Listing: NYSE · SEC CIK 1121788
Industry: Industrial Machinery/Components · SIC 3812 Search, Detection, Navigation, Guidance, Aeronautical Sys
Market value: $55.2B
Price history: 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

NOC Northrop Grumman Corporation

Listing: NYSE · SEC CIK 1133421
Industry: Industrial Machinery/Components · SIC 3812 Search, Detection, Navigation, Guidance, Aeronautical Sys
Market value: $72.5B
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
NOC / LHX	Watchlist	NOC by 1.93 sd	SIC 3812 Search, Detection, Navigation, Guidance, Aeronautical Sys
GRMN / LHX	Watchlist	GRMN by 1.76 sd	SIC 3812 Search, Detection, Navigation, Guidance, Aeronautical Sys

Follow the research behind the paper book

Boostio is a research-first platform in private beta: crypto candidates, daily market stories, public paper trading and now rival stocks. Exploring these pages stays free and open.

Explore the private beta

Scout Market Pulse Narratives Digest Wave

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.