Auto Parts:O.E.M.

BorgWarner Inc. vs Magna International Inc.

WatchlistBWA / MGAPrices through Oct 22, 2026

Why these are rivals: #2 and #3 by market value ($17B vs $12B) in Nasdaq's "Auto Parts:O.E.M." industry; SEC SIC 3714 / 3714 (same major group); #1 and #2 by market value ($17B vs $12B) with SEC SIC 3714 (Motor Vehicle Parts & Accessories).

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: 0.47 (needs >= 0.60)
  • Mean reversion: ADF t-statistic of the spread: -2.69 (needs <= -2.873 (5% critical value))
Business leadership

MGA is the larger business

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

YearBWAMGALarger
2025$14.3B$42.0BMGA
2024$14.1B$42.8BMGA
2023$14.2B$42.8BMGA
2022$12.6B$37.8BMGA
2021$11.8B$36.2BMGA
2020$10.2B$32.6BMGA

MGA led in every year with figures for both. Market value: BWA $11.9B, MGA $17.4B.

Stock leadership

MGA is ahead now

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

MGA leads BWA by 1.36 standard deviations: +10.5% over its usual price ratio. 9 lead switches in the last year.

Price change3 mo6 mo12 mo
BWA-13.9%-1.2%+26.6%
MGA-1.4%+4.1%+40.0%
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: 0.47 (needs >= 0.60)
Fail
Mean reversion: ADF t-statistic of the spread: -2.69 (needs <= -2.873 (5% critical value))
Pass
Speed: half-life of the spread, sessions: 11.58 (needs <= 63)
Data
Both stocks current
The twins over two years

Prices side by side, and the gap between them

BWA BorgWarner Inc. MGA Magna International Inc.Price 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 2026
Spread z-score: BWA relative to MGA, against the 252 sessions before each day. Above 0: BWA ahead; below 0: MGA ahead. Lines at +/-2 (idea) and +/-4 (stop).
-4stop-2idea0+2idea+4stopOct 2024Oct 2025Oct 2026
Data table (504 sessions)
DateBWA indexMGA indexzAhead
2026-10-22157.56148.82-1.36MGA ahead
2026-10-21163.21146.77-0.70MGA ahead
2026-10-20166.39152.66-0.98MGA ahead
2026-10-19165.43150.45-0.86MGA ahead
2026-10-16165.14151.74-1.01MGA ahead
2026-10-15166.68152.70-0.97MGA ahead
2026-10-14166.19148.19-0.61MGA ahead
2026-10-13172.07150.17-0.31near the usual relationship
2026-10-12170.54146.15-0.06near the usual relationship
2026-10-09174.15146.15+0.23near the usual relationship
2026-10-08175.34146.75+0.27near the usual relationship
2026-10-07177.16149.53+0.16near the usual relationship
2026-10-06180.00150.98+0.25near the usual relationship
2026-10-05171.19149.28-0.29near the usual relationship
2026-10-02171.93148.47-0.15near the usual relationship
2026-10-01171.53148.22-0.16near the usual relationship
2026-09-30170.77146.40-0.05near the usual relationship
2026-09-29173.12148.45-0.05near the usual relationship
2026-09-28173.49148.63-0.04near the usual relationship
2026-09-25174.20149.46-0.06near the usual relationship
2026-09-24166.14143.07-0.11near the usual relationship
2026-09-23172.02146.54+0.04near the usual relationship
2026-09-22173.61146.68+0.15near the usual relationship
2026-09-21179.89144.88+0.81BWA ahead
2026-09-18179.89145.21+0.78BWA ahead
2026-09-17181.14149.05+0.52BWA ahead
2026-09-16176.90146.56+0.43near the usual relationship
2026-09-15177.53145.83+0.55BWA ahead
2026-09-14181.68149.21+0.56BWA ahead
2026-09-11189.35152.06+0.87BWA ahead
2026-09-10186.62149.78+0.88BWA ahead
2026-09-09185.40150.54+0.72BWA ahead
2026-09-08188.24153.05+0.71BWA ahead
2026-09-04191.88158.36+0.50BWA ahead
2026-09-03186.73154.27+0.49near the usual relationship
2026-09-02185.17151.25+0.65BWA ahead
2026-09-01180.51146.31+0.76BWA ahead
2026-08-31182.27150.77+0.48near the usual relationship
2026-08-28182.07151.44+0.41near the usual relationship
2026-08-27184.09151.09+0.60BWA ahead
2026-08-26183.78151.76+0.52BWA ahead
2026-08-25184.94152.06+0.58BWA ahead
2026-08-24182.84155.90+0.07near the usual relationship
2026-08-21192.56167.97-0.24near the usual relationship
2026-08-20184.09161.85-0.36near the usual relationship
2026-08-19188.15163.28-0.18near the usual relationship
2026-08-18193.04161.58+0.33near the usual relationship
2026-08-17198.58163.92+0.53BWA ahead
2026-08-14195.06161.51+0.49near the usual relationship
2026-08-13192.81160.89+0.38near the usual relationship
2026-08-12195.60160.29+0.64BWA ahead
2026-08-11197.95161.58+0.70BWA ahead
2026-08-10196.82160.70+0.70BWA ahead
2026-08-07194.38161.78+0.44near the usual relationship
2026-08-06186.93155.94+0.41near the usual relationship
2026-08-05189.72165.00-0.17near the usual relationship
2026-08-04179.09161.05-0.64MGA ahead
2026-08-03179.86156.06-0.14near the usual relationship
2026-07-31181.08156.06-0.04near the usual relationship
2026-07-30182.98160.61-0.28near the usual relationship
2026-07-29176.70158.89-0.61MGA ahead
2026-07-28179.57158.70-0.37near the usual relationship
2026-07-27180.91154.43+0.11near the usual relationship
2026-07-24182.93150.98+0.58BWA ahead
2026-07-23182.76151.21+0.55BWA ahead
2026-07-22182.53155.39+0.17near the usual relationship
2026-07-21180.77156.06-0.01near the usual relationship
2026-07-20175.06151.90-0.07near the usual relationship
2026-07-17177.39152.82+0.03near the usual relationship
2026-07-16178.32155.35-0.11near the usual relationship
2026-07-15181.85152.43+0.40near the usual relationship
2026-07-14181.93148.52+0.76BWA ahead
2026-07-13180.80147.32+0.79BWA ahead
2026-07-10184.63147.78+1.03BWA ahead
2026-07-09183.89147.71+0.99BWA ahead
2026-07-08182.41144.79+1.15BWA ahead
2026-07-07182.02147.85+0.86BWA ahead
2026-07-06187.24151.02+0.96BWA ahead
2026-07-02180.45144.15+1.09BWA ahead
2026-07-01182.84145.02+1.20BWA ahead
2026-06-30188.64150.98+1.09BWA ahead
2026-06-29187.19148.98+1.17BWA ahead
2026-06-26193.49148.45+1.67BWA ahead
2026-06-25197.36150.26+1.79BWA ahead
2026-06-24193.72147.32+1.82BWA ahead
2026-06-23200.34148.24+2.21BWA ahead
2026-06-22205.51151.67+2.28BWA ahead
2026-06-18204.09150.26+2.35BWA ahead
2026-06-17200.40149.21+2.23BWA ahead
2026-06-16206.25150.54+2.54BWA ahead
2026-06-15208.86154.20+2.42BWA ahead
2026-06-12211.68153.44+2.73BWA ahead
2026-06-11212.64151.23+3.07BWA ahead
2026-06-10202.53147.21+2.81BWA ahead
2026-06-09208.15151.97+2.80BWA ahead
2026-06-08215.51153.30+3.27BWA ahead
2026-06-05206.34151.97+2.79BWA ahead
2026-06-04218.84156.70+3.31BWA ahead
2026-06-03217.47156.70+3.29BWA ahead
2026-06-02210.45156.61+2.82BWA ahead
2026-06-01201.87149.80+2.93BWA ahead
2026-05-29204.03148.91+3.29BWA ahead
2026-05-28202.59152.03+2.87BWA ahead
2026-05-27201.22152.59+2.74BWA ahead
2026-05-26193.92149.92+2.44BWA ahead
2026-05-22186.99148.49+1.98BWA ahead
2026-05-21180.54145.07+1.79BWA ahead
2026-05-20178.84140.17+2.27BWA ahead
2026-05-19173.66136.63+2.23BWA ahead
2026-05-18175.63137.02+2.42BWA ahead
2026-05-15179.57138.88+2.63BWA ahead
2026-05-14191.53145.62+3.02BWA ahead
2026-05-13189.97143.53+3.22BWA ahead
2026-05-12181.08143.23+2.36BWA ahead
2026-05-11179.40143.80+2.12BWA ahead
2026-05-08174.20145.11+1.36BWA ahead
2026-05-07165.28140.81+0.92BWA ahead
2026-05-06168.78144.17+0.87BWA ahead
2026-05-05162.67138.08+1.01BWA ahead
2026-05-04159.83136.91+0.83BWA ahead
2026-05-01161.28139.87+0.59BWA ahead
2026-04-30161.85146.40-0.24near the usual relationship
2026-04-29154.01142.06-0.61MGA ahead
2026-04-28154.29142.38-0.61MGA ahead
2026-04-27157.36143.21-0.33near the usual relationship
2026-04-24159.91144.72-0.22near the usual relationship
2026-04-23159.49143.02-0.03near the usual relationship
2026-04-22158.55141.14+0.11near the usual relationship
2026-04-21155.51141.80-0.33near the usual relationship
2026-04-20158.32142.68-0.10near the usual relationship
2026-04-17158.12139.25+0.33near the usual relationship
2026-04-16151.42130.47+0.74BWA ahead
2026-04-15149.12129.75+0.57BWA ahead
2026-04-14152.53132.95+0.54BWA ahead
2026-04-13152.16133.96+0.37near the usual relationship
2026-04-10154.77133.02+0.80BWA ahead
2026-04-09156.16132.84+0.99BWA ahead
2026-04-08156.14131.75+1.14BWA ahead
2026-04-07148.84124.47+1.31BWA ahead
2026-04-06150.74125.71+1.37BWA ahead
2026-04-02150.09126.83+1.15BWA ahead
2026-04-01155.03129.96+1.30BWA ahead
2026-03-31154.15128.33+1.43BWA ahead
2026-03-30149.29122.86+1.65BWA ahead
2026-03-27154.09125.04+1.91BWA ahead
2026-03-26155.57127.41+1.76BWA ahead
2026-03-25159.43129.02+1.98BWA ahead
2026-03-24156.28125.96+2.07BWA ahead
2026-03-23153.72123.66+2.12BWA ahead
2026-03-20148.38120.00+2.04BWA ahead
2026-03-19148.95120.95+1.99BWA ahead
2026-03-18147.87124.51+1.35BWA ahead
2026-03-17148.61128.67+0.87BWA ahead
2026-03-16147.19128.90+0.68BWA ahead
2026-03-13143.64126.60+0.58BWA ahead
2026-03-12149.12129.73+0.81BWA ahead
2026-03-11150.48132.97+0.55BWA ahead
2026-03-10150.09132.88+0.52BWA ahead
2026-03-09151.28132.93+0.66BWA ahead
2026-03-06147.16135.32-0.09near the usual relationship
2026-03-05149.80140.03-0.35near the usual relationship
2026-03-04150.00142.49-0.61MGA ahead
2026-03-03153.75142.06-0.15near the usual relationship
2026-03-02159.03145.30+0.04near the usual relationship
2026-02-27163.55144.98+0.53BWA ahead
2026-02-26164.52147.51+0.35near the usual relationship
2026-02-25168.89148.54+0.67BWA ahead
2026-02-24167.19149.41+0.42near the usual relationship
2026-02-23165.26146.93+0.51BWA ahead
2026-02-20167.39149.28+0.47near the usual relationship
2026-02-19171.34153.30+0.42near the usual relationship
2026-02-18175.34153.69+0.74BWA ahead
2026-02-17177.59153.64+0.95BWA ahead
2026-02-13178.41158.04+0.60BWA ahead
2026-02-12189.06132.95+4.17BWA ahead
2026-02-11187.78132.86+4.20BWA ahead
2026-02-10153.35129.27+1.46BWA ahead
2026-02-09149.83125.18+1.61BWA ahead
2026-02-06148.38124.21+1.60BWA ahead
2026-02-05143.07121.06+1.44BWA ahead
2026-02-04143.44122.79+1.27BWA ahead
2026-02-03137.98118.30+1.26BWA ahead
2026-02-02136.79118.12+1.15BWA ahead
2026-01-30134.69117.59+0.99BWA ahead
2026-01-29139.01121.38+0.99BWA ahead
2026-01-28137.16120.28+0.93BWA ahead
2026-01-27137.59123.13+0.62BWA ahead
2026-01-26135.71122.35+0.51BWA ahead
2026-01-23135.54122.40+0.49near the usual relationship
2026-01-22136.05122.81+0.50BWA ahead
2026-01-21137.10124.76+0.39near the usual relationship
2026-01-20132.22123.32+0.01near the usual relationship
2026-01-16134.06126.07-0.11near the usual relationship
2026-01-15138.07129.73-0.09near the usual relationship
2026-01-14136.59129.98-0.28near the usual relationship
2026-01-13136.79131.04-0.37near the usual relationship
2026-01-12137.13129.80-0.18near the usual relationship
2026-01-09135.43129.25-0.30near the usual relationship
2026-01-08135.77128.58-0.18near the usual relationship
2026-01-07134.80129.39-0.37near the usual relationship
2026-01-06136.05130.42-0.34near the usual relationship
2026-01-05135.17126.56+0.01near the usual relationship
2026-01-02132.50125.68-0.17near the usual relationship
2025-12-31128.01122.56-0.30near the usual relationship
2025-12-30129.91123.34-0.17near the usual relationship
2025-12-29130.09123.64-0.18near the usual relationship
2025-12-26129.46124.14-0.29near the usual relationship
2025-12-24129.03123.66-0.28near the usual relationship
2025-12-23128.32123.94-0.38near the usual relationship
2025-12-22129.06124.83-0.39near the usual relationship
2025-12-19127.93126.76-0.72MGA ahead
2025-12-18128.30125.34-0.52MGA ahead
2025-12-17126.87123.25-0.43near the usual relationship
2025-12-16126.48121.34-0.26near the usual relationship
2025-12-15127.44120.40-0.04near the usual relationship
2025-12-12126.39119.25-0.02near the usual relationship
2025-12-11128.10119.06+0.19near the usual relationship
2025-12-10123.64117.50-0.10near the usual relationship
2025-12-09119.66113.34-0.05near the usual relationship
2025-12-08119.03113.50-0.13near the usual relationship
2025-12-05123.01112.74+0.40near the usual relationship
2025-12-04123.27112.55+0.45near the usual relationship
2025-12-03122.76113.82+0.26near the usual relationship
2025-12-02122.78113.41+0.31near the usual relationship
2025-12-01121.65113.34+0.21near the usual relationship
2025-11-28122.33112.30+0.40near the usual relationship
2025-11-26122.05112.28+0.38near the usual relationship
2025-11-25123.86113.11+0.48near the usual relationship
2025-11-24121.82111.08+0.50BWA ahead
2025-11-21122.05110.97+0.55BWA ahead
2025-11-20116.36104.97+0.65BWA ahead
2025-11-19122.47109.20+0.81BWA ahead
2025-11-18123.72109.57+0.90BWA ahead
2025-11-17123.38109.91+0.83BWA ahead
2025-11-14127.27112.88+0.89BWA ahead
2025-11-13128.98113.77+0.97BWA ahead
2025-11-12130.71115.82+0.92BWA ahead
2025-11-11130.03114.53+1.00BWA ahead
2025-11-10128.47113.11+1.01BWA ahead
2025-11-07127.64114.67+0.77BWA ahead
2025-11-06127.87114.16+0.85BWA ahead
2025-11-05127.50114.83+0.75BWA ahead
2025-11-04125.28112.51+0.79BWA ahead
2025-11-03124.52113.29+0.63BWA ahead
2025-10-31122.05108.55+0.92BWA ahead
2025-10-30125.40102.67+1.99BWA ahead
2025-10-29121.68104.62+1.38BWA ahead
2025-10-28123.72104.64+1.60BWA ahead
2025-10-27123.10104.41+1.58BWA ahead
2025-10-24124.94106.25+1.56BWA ahead
2025-10-23124.18105.93+1.54BWA ahead
2025-10-22123.66105.13+1.60BWA ahead
2025-10-21124.40106.28+1.55BWA ahead
2025-10-20122.07103.06+1.72BWA ahead
2025-10-17120.99102.94+1.63BWA ahead
2025-10-16121.62102.90+1.72BWA ahead
2025-10-15120.06103.10+1.54BWA ahead
2025-10-14118.61103.43+1.34BWA ahead
2025-10-13117.10101.03+1.50BWA ahead
2025-10-10117.07100.11+1.63BWA ahead
2025-10-09118.30102.41+1.48BWA ahead
2025-10-08121.68106.21+1.37BWA ahead
2025-10-07120.40107.04+1.13BWA ahead
2025-10-06126.16113.13+1.02BWA ahead
2025-10-03127.10112.67+1.18BWA ahead
2025-10-02126.19111.52+1.22BWA ahead
2025-10-01125.74109.17+1.48BWA ahead
2025-09-30124.89108.94+1.42BWA ahead
2025-09-29124.49107.93+1.52BWA ahead
2025-09-26125.11107.20+1.70BWA ahead
2025-09-25123.30107.06+1.53BWA ahead
2025-09-24123.15105.84+1.69BWA ahead
2025-09-23124.18106.25+1.77BWA ahead
2025-09-22123.72106.71+1.68BWA ahead
2025-09-19125.62107.93+1.75BWA ahead
2025-09-18126.25108.83+1.72BWA ahead
2025-09-17125.51107.50+1.83BWA ahead
2025-09-16123.72106.12+1.83BWA ahead
2025-09-15124.63107.77+1.73BWA ahead
2025-09-12124.15106.65+1.85BWA ahead
2025-09-11126.02107.59+1.97BWA ahead
2025-09-10122.64105.29+1.90BWA ahead
2025-09-09124.12105.75+2.04BWA ahead
2025-09-08126.22105.91+2.31BWA ahead
2025-09-05125.09105.50+2.26BWA ahead
2025-09-04124.57104.28+2.42BWA ahead
2025-09-03122.13103.47+2.26BWA ahead
2025-09-02121.19104.55+2.00BWA ahead
2025-08-29121.48105.54+1.91BWA ahead
2025-08-28121.90105.66+1.97BWA ahead
2025-08-27123.66106.44+2.11BWA ahead
2025-08-26123.75106.58+2.13BWA ahead
2025-08-25123.21106.16+2.15BWA ahead
2025-08-22122.53105.96+2.12BWA ahead
2025-08-21118.86101.63+2.34BWA ahead
2025-08-20119.94101.91+2.49BWA ahead
2025-08-19119.49102.23+2.41BWA ahead
2025-08-18118.47101.20+2.48BWA ahead
2025-08-15117.67101.89+2.27BWA ahead
2025-08-14117.76102.83+2.15BWA ahead
2025-08-13118.10103.59+2.10BWA ahead
2025-08-12114.03101.31+1.89BWA ahead
2025-08-11109.3597.19+1.90BWA ahead
2025-08-08109.4997.65+1.86BWA ahead
2025-08-07108.5297.84+1.68BWA ahead
2025-08-06108.1096.57+1.87BWA ahead
2025-08-05107.6196.05+1.91BWA ahead
2025-08-04108.7595.24+2.29BWA ahead
2025-08-01106.5995.01+1.98BWA ahead
2025-07-31104.5594.27+1.78BWA ahead
2025-07-3098.1093.79+0.68BWA ahead
2025-07-2999.8395.42+0.69BWA ahead
2025-07-28101.6297.75+0.58BWA ahead
2025-07-25102.3397.95+0.68BWA ahead
2025-07-24102.3698.32+0.62BWA ahead
2025-07-23103.78100.34+0.51BWA ahead
2025-07-22100.4396.67+0.59BWA ahead
2025-07-21100.5195.72+0.79BWA ahead
2025-07-1899.3795.19+0.69BWA ahead
2025-07-17100.7798.02+0.42near the usual relationship
2025-07-1699.9196.76+0.51BWA ahead
2025-07-1599.4096.53+0.47near the usual relationship
2025-07-14101.3497.77+0.59BWA ahead
2025-07-11100.6096.48+0.70BWA ahead
2025-07-10101.7397.75+0.67BWA ahead
2025-07-09100.4897.10+0.58BWA ahead
2025-07-08100.0695.75+0.76BWA ahead
2025-07-0798.9894.07+0.88BWA ahead
2025-07-03100.3495.70+0.83BWA ahead
2025-07-02100.9796.00+0.89BWA ahead
2025-07-0198.8692.04+1.27BWA ahead
2025-06-3095.1188.78+1.23BWA ahead
2025-06-2795.4888.41+1.38BWA ahead
2025-06-2695.4588.02+1.47BWA ahead
2025-06-2594.1886.27+1.60BWA ahead
2025-06-2495.0086.48+1.73BWA ahead
2025-06-2393.0485.97+1.48BWA ahead
2025-06-2093.1885.54+1.61BWA ahead
2025-06-1894.6086.50+1.70BWA ahead
2025-06-1793.2785.67+1.63BWA ahead
2025-06-1694.7787.08+1.64BWA ahead
2025-06-1393.9585.81+1.77BWA ahead
2025-06-1294.8388.50+1.39BWA ahead
2025-06-1195.6888.32+1.61BWA ahead
2025-06-1096.3688.48+1.72BWA ahead
2025-06-0992.7385.65+1.63BWA ahead
2025-06-0691.7684.20+1.77BWA ahead
2025-06-0591.3683.10+1.96BWA ahead
2025-06-0491.1183.33+1.87BWA ahead
2025-06-0392.7083.58+2.17BWA ahead
2025-06-0292.1081.70+2.53BWA ahead
2025-05-3094.0183.42+2.57BWA ahead
2025-05-2995.0383.61+2.79BWA ahead
2025-05-2894.1882.89+2.84BWA ahead
2025-05-2795.4583.97+2.91BWA ahead
2025-05-2392.8481.51+3.01BWA ahead
2025-05-2293.6482.02+3.13BWA ahead
2025-05-2192.9381.88+3.07BWA ahead
2025-05-2094.6383.44+3.13BWA ahead
2025-05-1993.9284.20+2.82BWA ahead
2025-05-1694.6984.36+3.02BWA ahead
2025-05-1593.9583.84+3.05BWA ahead
2025-05-1493.5284.78+2.74BWA ahead
2025-05-1394.1285.38+2.77BWA ahead
2025-05-1292.7083.58+2.98BWA ahead
2025-05-0989.8380.02+3.36BWA ahead
2025-05-0888.4779.37+3.26BWA ahead
2025-05-0786.0276.75+3.50BWA ahead
2025-05-0682.3976.36+2.53BWA ahead
2025-05-0583.6676.52+2.88BWA ahead
2025-05-0283.1876.02+2.90BWA ahead
2025-05-0181.0880.50+0.77BWA ahead
2025-04-3080.6279.93+0.80BWA ahead
2025-04-2981.9680.50+1.02BWA ahead
2025-04-2880.4078.80+1.06BWA ahead
2025-04-2580.3178.32+1.17BWA ahead
2025-04-2480.7778.27+1.30BWA ahead
2025-04-2377.3676.57+0.83BWA ahead
2025-04-2276.4275.86+0.77BWA ahead
2025-04-2174.6074.15+0.74BWA ahead
2025-04-1775.1474.15+0.89BWA ahead
2025-04-1673.9273.93+0.62BWA ahead
2025-04-1574.0974.32+0.57BWA ahead
2025-04-1475.1175.40+0.56BWA ahead
2025-04-1174.4074.06+0.72BWA ahead
2025-04-1072.9373.88+0.40near the usual relationship
2025-04-0976.3977.37+0.41near the usual relationship
2025-04-0870.5770.87+0.57BWA ahead
2025-04-0773.2772.59+0.81BWA ahead
2025-04-0473.5574.66+0.39near the usual relationship
2025-04-0377.3076.18+0.91BWA ahead
2025-04-0282.7379.49+1.34BWA ahead
2025-04-0181.0878.68+1.17BWA ahead
2025-03-3181.3978.16+1.34BWA ahead
2025-03-2880.0978.18+1.07BWA ahead
2025-03-2781.9080.41+0.97BWA ahead
2025-03-2685.9486.57+0.57BWA ahead
2025-03-2583.8185.56+0.37near the usual relationship
2025-03-2483.6686.13+0.26near the usual relationship
2025-03-2181.5383.74+0.30near the usual relationship
2025-03-2082.2483.21+0.51BWA ahead
2025-03-1982.4483.47+0.51BWA ahead
2025-03-1881.8884.55+0.25near the usual relationship
2025-03-1780.5484.48+0.05near the usual relationship
2025-03-1481.5383.70+0.34near the usual relationship
2025-03-1378.9281.58+0.26near the usual relationship
2025-03-1281.1483.63+0.31near the usual relationship
2025-03-1183.0784.64+0.45near the usual relationship
2025-03-1084.8087.86+0.26near the usual relationship
2025-03-0784.6987.42+0.31near the usual relationship
2025-03-0683.4486.04+0.33near the usual relationship
2025-03-0582.9384.64+0.45near the usual relationship
2025-03-0479.8978.50+0.87BWA ahead
2025-03-0381.9081.24+0.77BWA ahead
2025-02-2884.5783.77+0.79BWA ahead
2025-02-2784.1285.33+0.54BWA ahead
2025-02-2685.4087.86+0.40near the usual relationship
2025-02-2585.2087.86+0.39near the usual relationship
2025-02-2484.4988.16+0.28near the usual relationship
2025-02-2183.7887.56+0.27near the usual relationship
2025-02-2085.9489.12+0.35near the usual relationship
2025-02-1984.2987.74+0.32near the usual relationship
2025-02-1885.9487.58+0.53BWA ahead
2025-02-1485.8587.03+0.58BWA ahead
2025-02-1383.5291.22-0.09near the usual relationship
2025-02-1282.0789.77-0.09near the usual relationship
2025-02-1183.6490.11+0.06near the usual relationship
2025-02-1083.3589.54+0.09near the usual relationship
2025-02-0785.2888.80+0.37near the usual relationship
2025-02-0685.9188.32+0.48near the usual relationship
2025-02-0588.5589.42+0.64BWA ahead
2025-02-0489.0186.82+0.94BWA ahead
2025-02-0388.5285.42+1.04BWA ahead
2025-01-3190.6291.22+0.69BWA ahead
2025-01-3093.3295.42+0.56BWA ahead
2025-01-2992.2494.30+0.57BWA ahead
2025-01-2892.4794.48+0.58BWA ahead
2025-01-2793.4795.56+0.58BWA ahead
2025-01-2492.7694.67+0.60BWA ahead
2025-01-2391.5692.44+0.70BWA ahead
2025-01-2290.3192.04+0.63BWA ahead
2025-01-2192.9593.84+0.71BWA ahead
2025-01-1791.7392.78+0.70BWA ahead
2025-01-1690.9493.29+0.60BWA ahead
2025-01-1591.7694.18+0.60BWA ahead
2025-01-1490.5192.94+0.60BWA ahead
2025-01-1389.7492.96+0.54BWA ahead
2025-01-1088.1890.89+0.58BWA ahead
2025-01-0889.6092.73+0.56BWA ahead
2025-01-0791.6896.16+0.46near the usual relationship
2025-01-0691.1496.23+0.41near the usual relationship
2025-01-0389.5594.87+0.39near the usual relationship
2025-01-0288.9894.85+0.35near the usual relationship
2024-12-3190.3196.09+0.37near the usual relationship
2024-12-3089.8995.91+0.35near the usual relationship
2024-12-2791.4596.94+0.41near the usual relationship
2024-12-2691.6597.54+0.38near the usual relationship
2024-12-2491.4297.54+0.37near the usual relationship
2024-12-2390.9196.69+0.40near the usual relationship
2024-12-2090.5797.08+0.35near the usual relationship
2024-12-1989.4394.92+0.43near the usual relationship
2024-12-1890.7796.46+0.42near the usual relationship
2024-12-1794.43100.11+0.44near the usual relationship
2024-12-1693.69100.60+0.36near the usual relationship
2024-12-1396.73101.86+0.51BWA ahead
2024-12-1299.57103.24+0.63BWA ahead
2024-12-1199.69103.59+0.62BWA ahead
2024-12-1098.32105.10+0.41near the usual relationship
2024-12-0997.44105.33+0.34near the usual relationship
2024-12-0696.02104.14+0.32near the usual relationship
2024-12-0596.56105.29+0.28near the usual relationship
2024-12-0498.86105.31+0.46near the usual relationship
2024-12-0396.16104.87+0.29near the usual relationship
2024-12-0297.50104.12+0.45near the usual relationship
2024-11-2997.50103.79+0.48near the usual relationship
2024-11-2797.39103.36+0.50BWA ahead
2024-11-2697.07101.26+0.64BWA ahead
2024-11-2599.94106.83+0.46near the usual relationship
2024-11-2296.93103.66+0.46near the usual relationship
2024-11-2195.91101.49+0.55BWA ahead
2024-11-2094.6398.07+0.70BWA ahead
2024-11-1994.1298.37+0.65BWA ahead
2024-11-1897.67100.53+0.76BWA ahead
2024-11-1598.01100.94+0.77BWA ahead
2024-11-1497.81101.38+0.73BWA ahead
2024-11-1398.89101.61+0.80BWA ahead
2024-11-1299.83101.56+0.87BWA ahead
2024-11-1198.47101.95+0.75BWA ahead
2024-11-0896.3699.79+0.76BWA ahead
2024-11-0799.6099.24+1.04BWA ahead
2024-11-0699.0196.85+1.19BWA ahead
2024-11-0596.6597.91+0.94BWA ahead
2024-11-0495.0396.90+0.90BWA ahead
2024-11-0195.0096.50+0.93BWA ahead
2024-10-3195.5490.76+1.42BWA ahead
2024-10-3095.3194.99+1.08BWA ahead
2024-10-2997.2295.68+1.17BWA ahead
2024-10-2897.7698.78+0.98BWA ahead
2024-10-2595.4596.53+0.98BWA ahead
2024-10-2495.0396.83+0.93BWA ahead
2024-10-2396.9396.76+1.08BWA ahead
2024-10-2297.1396.34+1.13BWA ahead
2024-10-2197.5696.23+1.18BWA ahead
2024-10-18100.00100.00+1.08BWA ahead

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Feb 14, 2025 (BWA +2.8%, MGA -4.6%); May 2, 2025 (BWA +2.6%, MGA -5.6%); Oct 31, 2025 (BWA -2.7%, MGA +5.7%); Feb 11, 2026 (BWA +22.4%, MGA +2.8%); Feb 13, 2026 (BWA -5.6%, MGA +18.9%). Upcoming earnings: BWA Oct 29, 2026 (pre-market); MGA Oct 30, 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)

5 simulated trades to Oct 20, 2026: +0.45% per trade on average after costs, 3 won.

LegsEnteredExitedWhyDaysBefore costsCosts + borrowAfter costs
Long MGA · Short BWAMar 4, 2022Mar 9, 2022divergence stop5-$505.29-$62.94-$567.73 (-5.68%)
Long BWA · Short MGAApr 2, 2018Apr 30, 2018divergence stop28-$644.93-$88.64-$740.64 (-7.41%)
Long BWA · Short MGAFeb 27, 2018Mar 12, 2018converged13$610.51-$84.03$523.22 (+5.23%)
Long MGA · Short BWAFeb 8, 2018Feb 22, 2018converged14$636.61-$85.64$554.51 (+5.54%)
Long BWA · Short MGADec 22, 2017Jan 11, 2018converged20$547.95-$87.16$455.76 (+4.56%)

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

The companies

BWA and MGA at a glance

BWA BorgWarner Inc.

Listing
NYSE · SEC CIK 908255
Industry
Auto Parts:O.E.M. · SIC 3714 Motor Vehicle Parts & Accessories
Market value
$11.9B
Price history
2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

MGA Magna International Inc.

Listing
NYSE · SEC CIK 749098
Industry
Auto Parts:O.E.M. · SIC 3714 Motor Vehicle Parts & Accessories
Market value
$17.4B
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.

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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.