Aerospace

The Boeing Company vs RTX Corporation

WatchlistBA / RTXPrices through Oct 22, 2026

Why these are rivals: #1 and #2 by market value ($259B vs $151B) in Nasdaq's "Aerospace" industry; SEC SIC 3724 / 3721 (same major group).

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: 0.35 (needs >= 0.60)
  • Mean reversion: ADF t-statistic of the spread: -1.86 (needs <= -2.873 (5% critical value))
Business leadership

BA is the larger business

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

YearBARTXLarger
2025$89.5B$88.6BBA
2024$66.5B$80.7BRTX
2023$77.8B$68.9BBA
2022$66.6B$67.1BRTX
2021$62.3B$64.4BRTX
2020$58.2B$56.6BBA

Revenue lead switched: 2021 to RTX, 2023 to BA, 2024 to RTX, 2025 to BA. Market value: BA $151.3B, RTX $258.9B.

Stock leadership

RTX is ahead now

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

RTX leads BA by 1.84 standard deviations: +17.0% over its usual price ratio. 0 lead switches in the last year.

Price change3 mo6 mo12 mo
BA-10.5%-19.9%-13.7%
RTX-8.5%+8.6%+12.5%
Relationship

Not a measured twin today

Only these tests can make a pair tradable on paper.

Pass
Aligned sessions: 2520 (needs >= 254)
Fail
Co-movement: daily return correlation, 252 sessions: 0.35 (needs >= 0.60)
Fail
Mean reversion: ADF t-statistic of the spread: -1.86 (needs <= -2.873 (5% critical value))
Pass
Speed: half-life of the spread, sessions: 21.34 (needs <= 63)
Data
Both stocks current
The twins over two years

Prices side by side, and the gap between them

BA The Boeing Company RTX RTX CorporationPrice index, 100 = 2024-10-18. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
100150Oct 2024Oct 2025Oct 2026BA 121RTX 155
Spread z-score: BA relative to RTX, against the 252 sessions before each day. Above 0: BA ahead; below 0: RTX ahead. Lines at +/-2 (idea) and +/-4 (stop).
-4stop-2idea0+2idea+4stopOct 2024Oct 2025Oct 2026
Data table (504 sessions)
DateBA indexRTX indexzAhead
2026-10-22121.00154.63-1.84RTX ahead
2026-10-21124.05152.16-1.37RTX ahead
2026-10-20122.88153.54-1.59RTX ahead
2026-10-19123.50152.57-1.47RTX ahead
2026-10-16122.72154.00-1.66RTX ahead
2026-10-15121.76148.47-1.34RTX ahead
2026-10-14119.14148.09-1.57RTX ahead
2026-10-13120.32145.35-1.25RTX ahead
2026-10-12122.26148.24-1.30RTX ahead
2026-10-09122.82147.69-1.21RTX ahead
2026-10-08121.13146.38-1.27RTX ahead
2026-10-07121.50143.15-1.00RTX ahead
2026-10-06122.46145.56-1.10RTX ahead
2026-10-05124.34146.39-1.00RTX ahead
2026-10-02124.88146.66-0.98RTX ahead
2026-10-01124.05146.93-1.09RTX ahead
2026-09-30120.03147.43-1.50RTX ahead
2026-09-29121.08148.46-1.49RTX ahead
2026-09-28118.96149.03-1.75RTX ahead
2026-09-25127.79150.41-1.06RTX ahead
2026-09-24126.97149.79-1.09RTX ahead
2026-09-23128.99152.63-1.13RTX ahead
2026-09-22127.56151.68-1.19RTX ahead
2026-09-21129.77154.34-1.20RTX ahead
2026-09-18127.87154.07-1.36RTX ahead
2026-09-17127.10153.70-1.41RTX ahead
2026-09-16130.30156.31-1.33RTX ahead
2026-09-15135.28155.26-0.85RTX ahead
2026-09-14135.66155.13-0.82RTX ahead
2026-09-11135.77156.99-0.94RTX ahead
2026-09-10132.13157.34-1.25RTX ahead
2026-09-09133.17156.89-1.14RTX ahead
2026-09-08135.95157.89-1.00RTX ahead
2026-09-04136.94159.46-1.03RTX ahead
2026-09-03135.81160.52-1.19RTX ahead
2026-09-02134.75159.45-1.20RTX ahead
2026-09-01132.68162.93-1.58RTX ahead
2026-08-31134.05164.97-1.61RTX ahead
2026-08-28135.37168.13-1.71RTX ahead
2026-08-27135.41168.42-1.73RTX ahead
2026-08-26136.83168.35-1.64RTX ahead
2026-08-25136.18166.99-1.61RTX ahead
2026-08-24135.78166.15-1.60RTX ahead
2026-08-21138.19166.70-1.47RTX ahead
2026-08-20138.77168.59-1.55RTX ahead
2026-08-19143.35174.99-1.60RTX ahead
2026-08-18143.91179.07-1.80RTX ahead
2026-08-17145.77176.02-1.51RTX ahead
2026-08-14149.46177.07-1.34RTX ahead
2026-08-13148.60175.10-1.29RTX ahead
2026-08-12149.16176.91-1.36RTX ahead
2026-08-11150.48177.78-1.33RTX ahead
2026-08-10150.19177.99-1.37RTX ahead
2026-08-07151.24177.12-1.27RTX ahead
2026-08-06149.80177.30-1.38RTX ahead
2026-08-05154.96176.55-1.03RTX ahead
2026-08-04153.01173.07-0.97RTX ahead
2026-08-03150.64172.05-1.07RTX ahead
2026-07-31139.45170.92-1.74RTX ahead
2026-07-30142.52170.25-1.51RTX ahead
2026-07-29138.07170.94-1.85RTX ahead
2026-07-28142.94173.59-1.69RTX ahead
2026-07-27136.45173.46-2.13RTX ahead
2026-07-24135.17168.99-1.99RTX ahead
2026-07-23134.99166.11-1.86RTX ahead
2026-07-22134.61154.76-1.23RTX ahead
2026-07-21132.13153.80-1.36RTX ahead
2026-07-20135.15154.42-1.19RTX ahead
2026-07-17138.08153.68-0.96RTX ahead
2026-07-16138.28154.35-0.99RTX ahead
2026-07-15140.72155.57-0.91RTX ahead
2026-07-14140.07153.58-0.84RTX ahead
2026-07-13139.04155.96-1.05RTX ahead
2026-07-10143.41155.60-0.76RTX ahead
2026-07-09143.94155.02-0.70RTX ahead
2026-07-08145.13154.79-0.62RTX ahead
2026-07-07149.47159.51-0.63RTX ahead
2026-07-06151.32159.92-0.56RTX ahead
2026-07-02146.12158.24-0.77RTX ahead
2026-07-01141.02152.30-0.76RTX ahead
2026-06-30139.66150.68-0.75RTX ahead
2026-06-29138.51148.77-0.72RTX ahead
2026-06-26140.16149.29-0.66RTX ahead
2026-06-25140.72148.18-0.56RTX ahead
2026-06-24142.10146.97-0.42near the usual relationship
2026-06-23139.81148.02-0.62RTX ahead
2026-06-22142.47144.40-0.25near the usual relationship
2026-06-18143.69147.40-0.36near the usual relationship
2026-06-17145.57152.94-0.57RTX ahead
2026-06-16146.77148.32-0.24near the usual relationship
2026-06-15147.71145.84-0.05near the usual relationship
2026-06-12141.32145.75-0.42near the usual relationship
2026-06-11142.99146.29-0.36near the usual relationship
2026-06-10134.84140.89-0.54RTX ahead
2026-06-09138.39144.19-0.53RTX ahead
2026-06-08139.30141.88-0.34near the usual relationship
2026-06-05139.00143.73-0.47near the usual relationship
2026-06-04140.27142.48-0.33near the usual relationship
2026-06-03135.86137.03-0.28near the usual relationship
2026-06-02140.45138.39-0.10near the usual relationship
2026-06-01144.71138.51+0.13near the usual relationship
2026-05-29149.13142.68+0.13near the usual relationship
2026-05-28147.60142.12+0.07near the usual relationship
2026-05-27144.71140.24+0.01near the usual relationship
2026-05-26141.23142.13-0.29near the usual relationship
2026-05-22141.30140.57-0.21near the usual relationship
2026-05-21141.68139.76-0.14near the usual relationship
2026-05-20143.35138.86-0.01near the usual relationship
2026-05-19138.72138.57-0.25near the usual relationship
2026-05-18142.33139.73-0.12near the usual relationship
2026-05-15142.25135.94+0.08near the usual relationship
2026-05-14147.88139.52+0.17near the usual relationship
2026-05-13155.23141.45+0.44near the usual relationship
2026-05-12152.82142.07+0.28near the usual relationship
2026-05-11153.68141.84+0.33near the usual relationship
2026-05-08153.14139.84+0.41near the usual relationship
2026-05-07149.05140.39+0.17near the usual relationship
2026-05-06148.34140.36+0.13near the usual relationship
2026-05-05144.76137.29+0.11near the usual relationship
2026-05-04142.77137.31+0.00near the usual relationship
2026-05-01146.70138.18+0.15near the usual relationship
2026-04-30147.76139.83+0.12near the usual relationship
2026-04-29144.59137.22+0.09near the usual relationship
2026-04-28148.85139.52+0.18near the usual relationship
2026-04-27149.25137.69+0.30near the usual relationship
2026-04-24149.96138.39+0.29near the usual relationship
2026-04-23151.06142.39+0.13near the usual relationship
2026-04-22149.21143.67-0.03near the usual relationship
2026-04-21141.39148.64-0.69RTX ahead
2026-04-20145.21155.49-0.83RTX ahead
2026-04-17144.12155.99-0.92RTX ahead
2026-04-16141.21155.54-1.05RTX ahead
2026-04-15144.47157.55-0.98RTX ahead
2026-04-14144.37161.06-1.16RTX ahead
2026-04-13143.32159.95-1.17RTX ahead
2026-04-10140.41160.07-1.34RTX ahead
2026-04-09141.97161.36-1.32RTX ahead
2026-04-08140.52161.59-1.41RTX ahead
2026-04-07135.48157.18-1.49RTX ahead
2026-04-06136.97157.57-1.43RTX ahead
2026-04-02134.34155.82-1.51RTX ahead
2026-04-01133.75154.64-1.50RTX ahead
2026-03-31128.41153.19-1.76RTX ahead
2026-03-30122.07148.63-1.94RTX ahead
2026-03-27122.92150.66-2.02RTX ahead
2026-03-26125.39153.15-2.02RTX ahead
2026-03-25128.78154.86-1.91RTX ahead
2026-03-24126.72154.07-2.03RTX ahead
2026-03-23128.01154.72-2.00RTX ahead
2026-03-20125.88157.37-2.31RTX ahead
2026-03-19129.79159.41-2.19RTX ahead
2026-03-18132.90162.45-2.18RTX ahead
2026-03-17136.01161.48-1.95RTX ahead
2026-03-16137.72163.64-1.98RTX ahead
2026-03-13135.41162.42-2.08RTX ahead
2026-03-12132.10161.25-2.26RTX ahead
2026-03-11138.13164.60-2.07RTX ahead
2026-03-10140.49164.39-1.92RTX ahead
2026-03-09145.16165.37-1.70RTX ahead
2026-03-06149.10166.58-1.54RTX ahead
2026-03-05143.26161.90-1.65RTX ahead
2026-03-04146.65165.84-1.67RTX ahead
2026-03-03144.59164.01-1.72RTX ahead
2026-03-02148.22168.49-1.76RTX ahead
2026-02-27146.79160.91-1.44RTX ahead
2026-02-26148.01156.95-1.14RTX ahead
2026-02-25148.62155.64-1.04RTX ahead
2026-02-24150.57157.61-1.04RTX ahead
2026-02-23148.67160.36-1.33RTX ahead
2026-02-20149.70162.74-1.41RTX ahead
2026-02-19150.78163.13-1.38RTX ahead
2026-02-18154.15162.65-1.16RTX ahead
2026-02-17157.45161.61-0.91RTX ahead
2026-02-13156.75158.88-0.80RTX ahead
2026-02-12154.42159.74-1.00RTX ahead
2026-02-11152.43156.06-0.91RTX ahead
2026-02-10156.51155.01-0.61RTX ahead
2026-02-09157.88155.81-0.58RTX ahead
2026-02-06156.79157.77-0.76RTX ahead
2026-02-05152.87155.63-0.88RTX ahead
2026-02-04152.23156.24-0.96RTX ahead
2026-02-03150.42161.61-1.39RTX ahead
2026-02-02150.34159.70-1.30RTX ahead
2026-01-30150.79159.57-1.27RTX ahead
2026-01-29150.99158.74-1.22RTX ahead
2026-01-28155.86158.40-0.91RTX ahead
2026-01-27157.78159.85-0.89RTX ahead
2026-01-26160.28154.17-0.41near the usual relationship
2026-01-23162.68155.60-0.36near the usual relationship
2026-01-22162.20155.92-0.41near the usual relationship
2026-01-21161.34156.85-0.52RTX ahead
2026-01-20160.65155.94-0.51RTX ahead
2026-01-16159.79160.36-0.82RTX ahead
2026-01-15159.83158.70-0.73RTX ahead
2026-01-14156.52157.91-0.88RTX ahead
2026-01-13157.77154.13-0.59RTX ahead
2026-01-12154.72153.95-0.77RTX ahead
2026-01-09151.31149.70-0.72RTX ahead
2026-01-08146.70148.64-0.95RTX ahead
2026-01-07147.17147.50-0.85RTX ahead
2026-01-06148.28151.21-1.02RTX ahead
2026-01-05147.18149.51-1.00RTX ahead
2026-01-02146.95148.71-0.97RTX ahead
2025-12-31140.08145.65-1.23RTX ahead
2025-12-30140.97146.13-1.21RTX ahead
2025-12-29140.16146.46-1.30RTX ahead
2025-12-26139.64147.05-1.38RTX ahead
2025-12-24140.75148.01-1.38RTX ahead
2025-12-23139.90147.52-1.42RTX ahead
2025-12-22139.90147.46-1.43RTX ahead
2025-12-19138.12144.54-1.37RTX ahead
2025-12-18134.37141.59-1.45RTX ahead
2025-12-17133.12140.72-1.49RTX ahead
2025-12-16133.36142.89-1.64RTX ahead
2025-12-15132.58144.62-1.83RTX ahead
2025-12-12131.86141.88-1.72RTX ahead
2025-12-11129.49140.90-1.84RTX ahead
2025-12-10128.21138.75-1.81RTX ahead
2025-12-09129.27136.54-1.58RTX ahead
2025-12-08133.08136.21-1.28RTX ahead
2025-12-05130.25135.88-1.48RTX ahead
2025-12-04130.24136.05-1.50RTX ahead
2025-12-03130.67133.78-1.31RTX ahead
2025-12-02132.50134.05-1.19RTX ahead
2025-12-01120.30133.43-2.13RTX ahead
2025-11-28121.94138.91-2.43RTX ahead
2025-11-26120.59137.54-2.47RTX ahead
2025-11-25117.70136.71-2.69RTX ahead
2025-11-24115.56137.56-3.00RTX ahead
2025-11-21115.94134.75-2.79RTX ahead
2025-11-20115.73137.17-3.04RTX ahead
2025-11-19119.81138.00-2.76RTX ahead
2025-11-18122.34138.75-2.62RTX ahead
2025-11-17123.75139.48-2.56RTX ahead
2025-11-14125.50139.43-2.42RTX ahead
2025-11-13125.54138.15-2.33RTX ahead
2025-11-12126.13141.11-2.54RTX ahead
2025-11-11125.94142.33-2.69RTX ahead
2025-11-10125.68142.18-2.73RTX ahead
2025-11-07125.55140.54-2.65RTX ahead
2025-11-06126.77139.06-2.45RTX ahead
2025-11-05127.50138.18-2.34RTX ahead
2025-11-04127.77139.46-2.44RTX ahead
2025-11-03131.97140.60-2.17RTX ahead
2025-10-31129.69141.76-2.51RTX ahead
2025-10-30129.08140.90-2.51RTX ahead
2025-10-29137.79140.06-1.64RTX ahead
2025-10-28144.08141.89-1.25RTX ahead
2025-10-27143.87142.34-1.31RTX ahead
2025-10-24142.81141.88-1.36RTX ahead
2025-10-23140.50142.50-1.63RTX ahead
2025-10-22139.74141.34-1.59RTX ahead
2025-10-21140.17137.42-1.21RTX ahead
2025-10-20139.88127.63-0.32near the usual relationship
2025-10-17137.38125.44-0.32near the usual relationship
2025-10-16136.70124.72-0.30near the usual relationship
2025-10-15138.06124.68-0.17near the usual relationship
2025-10-14138.26126.59-0.33near the usual relationship
2025-10-13139.07126.15-0.21near the usual relationship
2025-10-10135.95125.24-0.39near the usual relationship
2025-10-09139.35128.80-0.43near the usual relationship
2025-10-08145.37133.87-0.38near the usual relationship
2025-10-07143.11134.43-0.61RTX ahead
2025-10-06141.76134.05-0.68RTX ahead
2025-10-03139.55132.29-0.71RTX ahead
2025-10-02140.28132.33-0.65RTX ahead
2025-10-01138.84132.78-0.81RTX ahead
2025-09-30139.25132.89-0.78RTX ahead
2025-09-29140.05129.95-0.45near the usual relationship
2025-09-26142.75129.73-0.20near the usual relationship
2025-09-25137.76127.47-0.41near the usual relationship
2025-09-24138.77128.16-0.39near the usual relationship
2025-09-23139.57127.49-0.26near the usual relationship
2025-09-22136.83126.61-0.41near the usual relationship
2025-09-19139.13125.67-0.13near the usual relationship
2025-09-18139.14125.63-0.12near the usual relationship
2025-09-17138.47125.72-0.18near the usual relationship
2025-09-16138.72125.94-0.18near the usual relationship
2025-09-15139.19125.77-0.13near the usual relationship
2025-09-12139.32123.77+0.07near the usual relationship
2025-09-11141.93125.20+0.16near the usual relationship
2025-09-10146.79123.09+0.75BA ahead
2025-09-09148.08120.51+1.11BA ahead
2025-09-08149.00122.47+1.00BA ahead
2025-09-05148.14125.10+0.69BA ahead
2025-09-04148.87126.02+0.66BA ahead
2025-09-03149.92125.56+0.79BA ahead
2025-09-02153.15125.48+1.05BA ahead
2025-08-29151.41125.95+0.88BA ahead
2025-08-28152.36127.59+0.80BA ahead
2025-08-27152.01126.94+0.83BA ahead
2025-08-26151.50126.72+0.81BA ahead
2025-08-25146.37124.10+0.65BA ahead
2025-08-22148.46124.08+0.82BA ahead
2025-08-21144.81124.14+0.52BA ahead
2025-08-20145.56124.36+0.55BA ahead
2025-08-19145.16122.03+0.74BA ahead
2025-08-18149.94123.49+0.99BA ahead
2025-08-15151.78122.37+1.24BA ahead
2025-08-14150.45123.16+1.07BA ahead
2025-08-13150.56123.66+1.03BA ahead
2025-08-12150.07123.48+1.01BA ahead
2025-08-11145.78122.94+0.72BA ahead
2025-08-08147.82122.98+0.88BA ahead
2025-08-07146.66123.70+0.72BA ahead
2025-08-06145.19123.69+0.60BA ahead
2025-08-05145.07124.15+0.55BA ahead
2025-08-04143.45124.98+0.33near the usual relationship
2025-08-01143.16124.53+0.34near the usual relationship
2025-07-31143.12125.14+0.27near the usual relationship
2025-07-30145.70125.79+0.41near the usual relationship
2025-07-29145.86124.78+0.50BA ahead
2025-07-28152.52123.94+1.07BA ahead
2025-07-25150.36124.59+0.83BA ahead
2025-07-24149.21123.27+0.85BA ahead
2025-07-23150.89124.28+0.86BA ahead
2025-07-22147.41118.46+1.11BA ahead
2025-07-21147.95120.36+0.97BA ahead
2025-07-18147.96120.31+0.95BA ahead
2025-07-17149.03120.31+1.01BA ahead
2025-07-16148.32119.26+1.03BA ahead
2025-07-15148.39118.07+1.12BA ahead
2025-07-14148.72118.55+1.08BA ahead
2025-07-11146.35116.64+1.06BA ahead
2025-07-10145.86116.26+1.04BA ahead
2025-07-09146.19116.09+1.06BA ahead
2025-07-08140.98115.08+0.77BA ahead
2025-07-07141.05115.88+0.70BA ahead
2025-07-03139.30115.75+0.57BA ahead
2025-07-02136.79114.77+0.47near the usual relationship
2025-07-01135.35114.51+0.38near the usual relationship
2025-06-30135.18115.96+0.25near the usual relationship
2025-06-27138.42114.88+0.53BA ahead
2025-06-26130.70113.30+0.14near the usual relationship
2025-06-25128.32112.28+0.05near the usual relationship
2025-06-24129.64112.65+0.10near the usual relationship
2025-06-23129.88115.80-0.13near the usual relationship
2025-06-20128.23116.45-0.29near the usual relationship
2025-06-18127.54115.84-0.30near the usual relationship
2025-06-17129.20117.92-0.35near the usual relationship
2025-06-16130.13116.31-0.18near the usual relationship
2025-06-13129.24115.70-0.20near the usual relationship
2025-06-12131.45111.96+0.22near the usual relationship
2025-06-11138.06112.62+0.57BA ahead
2025-06-10139.18110.01+0.82BA ahead
2025-06-09140.33111.96+0.74BA ahead
2025-06-06136.00110.47+0.58BA ahead
2025-06-05134.85110.44+0.51BA ahead
2025-06-04136.76110.03+0.65BA ahead
2025-06-03137.70109.20+0.76BA ahead
2025-06-02136.43109.16+0.69BA ahead
2025-05-30133.75108.39+0.58BA ahead
2025-05-29134.31107.05+0.71BA ahead
2025-05-28130.00105.50+0.56BA ahead
2025-05-27129.70106.57+0.45near the usual relationship
2025-05-23130.55105.11+0.61BA ahead
2025-05-22131.23106.47+0.54BA ahead
2025-05-21131.10107.17+0.47near the usual relationship
2025-05-20133.98108.94+0.51BA ahead
2025-05-19132.42108.96+0.41near the usual relationship
2025-05-16132.79107.59+0.52BA ahead
2025-05-15133.06107.62+0.53BA ahead
2025-05-14132.08103.87+0.75BA ahead
2025-05-13131.24103.81+0.70BA ahead
2025-05-12128.08103.68+0.51BA ahead
2025-05-09125.71102.18+0.48near the usual relationship
2025-05-08123.68102.18+0.34near the usual relationship
2025-05-07119.72101.25+0.16near the usual relationship
2025-05-06119.97101.78+0.13near the usual relationship
2025-05-05120.30102.12+0.12near the usual relationship
2025-05-02119.65103.41-0.02near the usual relationship
2025-05-01117.99101.18+0.03near the usual relationship
2025-04-30118.22100.17+0.12near the usual relationship
2025-04-29117.4299.85+0.09near the usual relationship
2025-04-28117.6199.11+0.15near the usual relationship
2025-04-25114.8199.44-0.06near the usual relationship
2025-04-24113.7296.86+0.06near the usual relationship
2025-04-23111.2195.52+0.00near the usual relationship
2025-04-22104.8590.34-0.03near the usual relationship
2025-04-21102.80100.16-0.94RTX ahead
2025-04-17104.45102.36-0.99RTX ahead
2025-04-16100.95102.64-1.28RTX ahead
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2025-03-31110.03105.19-0.94RTX ahead
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2025-03-25117.80107.74-0.65RTX ahead
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2025-03-21114.91105.12-0.66RTX ahead
2025-03-20111.50106.79-0.98RTX ahead
2025-03-19111.37107.47-1.04RTX ahead
2025-03-18104.24105.38-1.36RTX ahead
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2025-03-13102.79102.60-1.29RTX ahead
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2025-03-06102.21101.87-1.31RTX ahead
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2025-03-03109.72106.28-1.14RTX ahead
2025-02-28112.66105.61-0.94RTX ahead
2025-02-27112.15103.65-0.86RTX ahead
2025-02-26111.64101.10-0.74RTX ahead
2025-02-25115.01101.13-0.57RTX ahead
2025-02-24116.0799.61-0.43near the usual relationship
2025-02-21114.2997.91-0.43near the usual relationship
2025-02-20116.7099.36-0.40near the usual relationship
2025-02-19120.1099.59-0.25near the usual relationship
2025-02-18119.3498.28-0.22near the usual relationship
2025-02-14118.9897.21-0.18near the usual relationship
2025-02-13119.6499.94-0.31near the usual relationship
2025-02-12120.16100.68-0.34near the usual relationship
2025-02-11116.41102.53-0.62RTX ahead
2025-02-10116.48101.85-0.58RTX ahead
2025-02-07117.09101.61-0.55RTX ahead
2025-02-06119.23102.27-0.49near the usual relationship
2025-02-05117.32102.57-0.60RTX ahead
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2025-01-13110.0593.50-0.56RTX ahead
2025-01-10110.9791.42-0.42near the usual relationship
2025-01-08110.8192.06-0.47near the usual relationship
2025-01-07111.3091.17-0.41near the usual relationship
2025-01-06110.1890.61-0.43near the usual relationship
2025-01-03109.6192.02-0.53RTX ahead
2025-01-02110.8892.13-0.49near the usual relationship
2024-12-31114.1991.90-0.36near the usual relationship
2024-12-30113.9091.50-0.36near the usual relationship
2024-12-27116.5992.69-0.32near the usual relationship
2024-12-26116.3792.95-0.35near the usual relationship
2024-12-24115.7092.78-0.37near the usual relationship
2024-12-23114.6492.62-0.41near the usual relationship
2024-12-20114.4292.50-0.42near the usual relationship
2024-12-19114.2291.69-0.40near the usual relationship
2024-12-18111.3790.89-0.47near the usual relationship
2024-12-17111.6393.25-0.56RTX ahead
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2024-10-21103.1199.98-1.55RTX ahead
2024-10-18100.00100.00-1.68RTX ahead

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Apr 3, 2025 (BA -10.5%, RTX -2.2%); Apr 22, 2025 (BA +2.0%, RTX -9.8%); Dec 2, 2025 (BA +10.2%, RTX +0.5%); Apr 22, 2026 (BA +5.5%, RTX -3.3%). Upcoming earnings: BA Oct 27, 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: -12.71% per trade on average after costs, 0 won.

LegsEnteredExitedWhyDaysBefore costsCosts + borrowAfter costs
Long RTX · Short BADec 28, 2018Feb 5, 2019divergence stop39-$1,244.66-$42.07-$1,270.78 (-12.71%)

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

The companies

BA and RTX at a glance

BA The Boeing Company

Listing
NYSE · SEC CIK 12927
Industry
Aerospace · SIC 3721 Aircraft
Market value
$151.3B
Price history
2,520 daily closes, Oct 12, 2016 to Oct 22, 2026

RTX RTX Corporation

Listing
NYSE · SEC CIK 101829
Industry
Aerospace · SIC 3724 Aircraft Engines & Engine Parts
Market value
$258.9B
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.

Related
All pairs →
PairStatusAhead nowIndustry
BA / EMBJWatchlistEMBJ by 1.57 sdSIC 3721 Aircraft
RTX / HONWatchlistRTX by 1.38 sdAerospace
BA / HONWatchlistBA by 1.09 sdAerospace
RTX / HONAShort historyneitherSIC 3724 Aircraft Engines & Engine Parts

Follow the research behind the paper book

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Explore the private beta

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.