Power Generation

Exelon Corporation vs Xcel Energy Inc.

Measured twinEXC / XELPrices through Oct 22, 2026

Why these are rivals: #2 and #3 by market value ($47B vs $44B) in Nasdaq's "Power Generation" industry; SEC SIC 4931 / 4931 (same major group); #2 and #3 by market value ($47B vs $44B) with SEC SIC 4931 (Electric & Other Services Combined).

The price gap between these two has a measured habit of closing. A 2 standard deviation gap becomes a paired paper idea.

  • no divergence: z = -1.02 (needs |z| >= 2.0)
Business leadership

EXC is the larger business

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

YearEXCXELLarger
2025$24.3B$14.7BEXC
2024$23.0B$13.4BEXC
2023$21.7B$14.2BEXC
2022$19.1B$15.3BEXC
2021$17.9B$13.4BEXC
2020$16.7B$11.5BEXC

EXC led in every year with figures for both. Market value: EXC $43.8B, XEL $46.9B.

Stock leadership

XEL is ahead now

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

XEL leads EXC by 1.02 standard deviations: +2.4% over its usual price ratio. 4 lead switches in the last year.

Price change3 mo6 mo12 mo
EXC-5.6%-4.1%-6.6%
XEL-3.4%-0.7%-2.2%
Relationship

The gap has closed before

Only these tests can make a pair tradable on paper.

Pass
Aligned sessions: 2521 (needs >= 254)
Pass
Co-movement: daily return correlation, 252 sessions: 0.63 (needs >= 0.60)
Pass
Mean reversion: ADF t-statistic of the spread: -3.17 (needs <= -2.873 (5% critical value))
Pass
Speed: half-life of the spread, sessions: 6.71 (needs <= 63)
Data
Both stocks current
The twins over two years

Prices side by side, and the gap between them

EXC Exelon Corporation XEL Xcel Energy Inc.Price index, 100 = 2024-10-18. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
100120Oct 2024Oct 2025Oct 2026EXC 110XEL 123
Spread z-score: EXC relative to XEL, against the 252 sessions before each day. Above 0: EXC ahead; below 0: XEL ahead. Lines at +/-2 (idea) and +/-4 (stop).
-4stop-2idea0+2idea+4stopOct 2024Oct 2025Oct 2026
Data table (504 sessions)
DateEXC indexXEL indexzAhead
2026-10-22109.52123.15-1.02XEL ahead
2026-10-21105.13119.84-1.62XEL ahead
2026-10-20105.08119.68-1.60XEL ahead
2026-10-19103.57117.28-1.36XEL ahead
2026-10-16106.23119.10-0.94XEL ahead
2026-10-15103.74117.25-1.30XEL ahead
2026-10-14104.03117.62-1.32XEL ahead
2026-10-13103.39116.50-1.18XEL ahead
2026-10-12102.86115.76-1.14XEL ahead
2026-10-09101.98115.15-1.28XEL ahead
2026-10-08101.90114.50-1.07XEL ahead
2026-10-07101.32113.03-0.75XEL ahead
2026-10-06101.78113.52-0.73XEL ahead
2026-10-0599.68111.58-0.89XEL ahead
2026-10-0299.46111.44-0.92XEL ahead
2026-10-0198.83110.11-0.67XEL ahead
2026-09-3098.66110.00-0.69XEL ahead
2026-09-2999.27110.33-0.54XEL ahead
2026-09-2898.46108.30-0.10near the usual relationship
2026-09-2598.51108.94-0.32near the usual relationship
2026-09-2498.17108.57-0.33near the usual relationship
2026-09-2399.37110.29-0.49near the usual relationship
2026-09-22102.08112.47-0.19near the usual relationship
2026-09-21102.52112.14+0.11near the usual relationship
2026-09-18102.74112.85-0.06near the usual relationship
2026-09-17104.13114.92-0.27near the usual relationship
2026-09-16103.64113.49+0.06near the usual relationship
2026-09-15103.04113.14-0.06near the usual relationship
2026-09-14104.32115.75-0.50XEL ahead
2026-09-11105.40117.84-0.82XEL ahead
2026-09-10105.96117.70-0.56XEL ahead
2026-09-09106.72118.92-0.69XEL ahead
2026-09-08107.33119.99-0.84XEL ahead
2026-09-04106.57118.18-0.51XEL ahead
2026-09-03108.74119.15-0.02near the usual relationship
2026-09-02107.37117.86-0.09near the usual relationship
2026-09-01107.03118.45-0.43near the usual relationship
2026-08-31106.76118.14-0.43near the usual relationship
2026-08-28107.28119.32-0.65XEL ahead
2026-08-27107.35120.43-1.00XEL ahead
2026-08-26108.52121.24-0.84XEL ahead
2026-08-25108.21120.48-0.71XEL ahead
2026-08-24108.28120.70-0.77XEL ahead
2026-08-21106.91119.09-0.74XEL ahead
2026-08-20110.04122.85-0.84XEL ahead
2026-08-19110.62123.94-0.99XEL ahead
2026-08-18110.65123.57-0.86XEL ahead
2026-08-17111.28123.63-0.67XEL ahead
2026-08-14111.99123.57-0.41near the usual relationship
2026-08-13111.36123.27-0.54XEL ahead
2026-08-12110.43122.68-0.68XEL ahead
2026-08-11109.57121.21-0.53XEL ahead
2026-08-10108.67119.98-0.46near the usual relationship
2026-08-07111.38121.85-0.13near the usual relationship
2026-08-06110.67120.13+0.15near the usual relationship
2026-08-05111.75120.49+0.39near the usual relationship
2026-08-04111.94121.35+0.19near the usual relationship
2026-08-03111.43121.26+0.05near the usual relationship
2026-07-31111.89122.05-0.05near the usual relationship
2026-07-30111.31122.10-0.25near the usual relationship
2026-07-29114.85122.91+0.63EXC ahead
2026-07-28115.53125.38+0.12near the usual relationship
2026-07-27115.14125.97-0.17near the usual relationship
2026-07-24116.07127.47-0.31near the usual relationship
2026-07-23115.46126.07-0.11near the usual relationship
2026-07-22114.04125.16-0.29near the usual relationship
2026-07-21112.06122.87-0.27near the usual relationship
2026-07-20112.23122.79-0.20near the usual relationship
2026-07-17112.97122.94-0.02near the usual relationship
2026-07-16114.26124.83-0.16near the usual relationship
2026-07-15111.70123.69-0.63XEL ahead
2026-07-14114.58125.13-0.17near the usual relationship
2026-07-13114.99125.61-0.18near the usual relationship
2026-07-10114.29124.96-0.22near the usual relationship
2026-07-09113.26123.33-0.10near the usual relationship
2026-07-08115.46124.27+0.26near the usual relationship
2026-07-07116.17125.91+0.03near the usual relationship
2026-07-06114.90125.44-0.21near the usual relationship
2026-07-02116.92127.92-0.28near the usual relationship
2026-07-01112.97124.40-0.48near the usual relationship
2026-06-30113.85125.33-0.48near the usual relationship
2026-06-29115.14127.95-0.77XEL ahead
2026-06-26115.75128.34-0.71XEL ahead
2026-06-25114.16127.59-0.96XEL ahead
2026-06-24114.53127.16-0.76XEL ahead
2026-06-23113.85125.38-0.53XEL ahead
2026-06-22112.19123.01-0.41near the usual relationship
2026-06-18111.87120.82+0.02near the usual relationship
2026-06-17111.26120.90-0.16near the usual relationship
2026-06-16113.77123.27-0.09near the usual relationship
2026-06-15112.77123.85-0.47near the usual relationship
2026-06-12112.84123.65-0.42near the usual relationship
2026-06-11111.14122.16-0.51XEL ahead
2026-06-10111.38121.90-0.40near the usual relationship
2026-06-09110.70121.54-0.49near the usual relationship
2026-06-08109.40121.15-0.73XEL ahead
2026-06-05111.72123.37-0.66XEL ahead
2026-06-04108.99121.38-0.90XEL ahead
2026-06-03110.09120.79-0.50XEL ahead
2026-06-02109.89121.54-0.72XEL ahead
2026-06-01109.18119.26-0.39near the usual relationship
2026-05-29111.45124.08-0.91XEL ahead
2026-05-28111.31123.71-0.87XEL ahead
2026-05-27112.80126.42-1.11XEL ahead
2026-05-26112.41126.08-1.13XEL ahead
2026-05-22112.89126.55-1.13XEL ahead
2026-05-21110.74125.18-1.36XEL ahead
2026-05-20109.57124.64-1.54XEL ahead
2026-05-19108.96124.44-1.67XEL ahead
2026-05-18107.37121.90-1.52XEL ahead
2026-05-15105.93121.62-1.84XEL ahead
2026-05-14108.42124.91-1.96XEL ahead
2026-05-13108.11124.72-2.01XEL ahead
2026-05-12109.84124.71-1.58XEL ahead
2026-05-11107.91125.80-2.33XEL ahead
2026-05-08107.23123.91-2.10XEL ahead
2026-05-07108.45125.53-2.16XEL ahead
2026-05-06109.94125.72-1.84XEL ahead
2026-05-05112.77127.13-1.46XEL ahead
2026-05-04113.82126.69-1.12XEL ahead
2026-05-01113.55128.89-1.64XEL ahead
2026-04-30112.31129.47-2.06XEL ahead
2026-04-29114.82123.02-0.15near the usual relationship
2026-04-28114.87124.05-0.36near the usual relationship
2026-04-27113.77123.94-0.59XEL ahead
2026-04-24114.58123.54-0.34near the usual relationship
2026-04-23114.16124.05-0.54XEL ahead
2026-04-22111.99121.91-0.59XEL ahead
2026-04-21112.99123.43-0.67XEL ahead
2026-04-20113.31125.36-0.98XEL ahead
2026-04-17114.82126.55-0.89XEL ahead
2026-04-16116.21126.50-0.61XEL ahead
2026-04-15116.92122.76+0.22near the usual relationship
2026-04-14118.83124.60+0.24near the usual relationship
2026-04-13117.58125.57-0.18near the usual relationship
2026-04-10118.61128.58-0.53XEL ahead
2026-04-09120.73129.19-0.24near the usual relationship
2026-04-08120.07127.14-0.02near the usual relationship
2026-04-07119.78125.71+0.17near the usual relationship
2026-04-06119.51125.47+0.16near the usual relationship
2026-04-02120.46126.02+0.23near the usual relationship
2026-04-01119.37124.41+0.30near the usual relationship
2026-03-31119.71123.99+0.43near the usual relationship
2026-03-30119.93123.56+0.54EXC ahead
2026-03-27118.00121.88+0.48near the usual relationship
2026-03-26118.19121.63+0.56EXC ahead
2026-03-25116.41121.27+0.30near the usual relationship
2026-03-24115.48121.68+0.05near the usual relationship
2026-03-23115.19120.10+0.27near the usual relationship
2026-03-20113.41119.82-0.02near the usual relationship
2026-03-19117.24124.13-0.06near the usual relationship
2026-03-18120.27124.89+0.34near the usual relationship
2026-03-17122.20127.06+0.31near the usual relationship
2026-03-16122.81127.41+0.36near the usual relationship
2026-03-13121.66127.84+0.09near the usual relationship
2026-03-12120.83126.14+0.22near the usual relationship
2026-03-11119.27126.42-0.10near the usual relationship
2026-03-10119.68127.80-0.26near the usual relationship
2026-03-09120.00128.14-0.27near the usual relationship
2026-03-06120.54128.80-0.29near the usual relationship
2026-03-05119.10128.58-0.51XEL ahead
2026-03-04120.27129.61-0.47near the usual relationship
2026-03-03119.56129.81-0.63XEL ahead
2026-03-02120.07130.79-0.71XEL ahead
2026-02-27120.81130.11-0.47near the usual relationship
2026-02-26119.17130.28-0.79XEL ahead
2026-02-25118.93130.40-0.86XEL ahead
2026-02-24118.66130.97-1.01XEL ahead
2026-02-23117.70130.09-1.04XEL ahead
2026-02-20116.70127.28-0.77XEL ahead
2026-02-19115.65126.14-0.77XEL ahead
2026-02-18115.36124.36-0.53XEL ahead
2026-02-17117.31126.03-0.46near the usual relationship
2026-02-13118.39127.35-0.49near the usual relationship
2026-02-12116.12123.27-0.22near the usual relationship
2026-02-11108.55121.62-1.37XEL ahead
2026-02-10109.01120.96-1.17XEL ahead
2026-02-09107.37119.29-1.21XEL ahead
2026-02-06108.25118.46-0.89XEL ahead
2026-02-05107.59118.81-1.09XEL ahead
2026-02-04106.06118.93-1.43XEL ahead
2026-02-03107.47118.54-1.08XEL ahead
2026-02-02107.23116.28-0.71XEL ahead
2026-01-30109.35118.71-0.74XEL ahead
2026-01-29108.45118.57-0.90XEL ahead
2026-01-28109.30118.64-0.74XEL ahead
2026-01-27109.47119.14-0.80XEL ahead
2026-01-26108.79118.20-0.76XEL ahead
2026-01-23107.59117.08-0.80XEL ahead
2026-01-22108.91118.40-0.78XEL ahead
2026-01-21109.89119.42-0.77XEL ahead
2026-01-20109.77118.95-0.71XEL ahead
2026-01-16109.23118.01-0.65XEL ahead
2026-01-15107.81117.62-0.86XEL ahead
2026-01-14106.47118.93-1.37XEL ahead
2026-01-13105.79116.97-1.16XEL ahead
2026-01-12104.76115.50-1.09XEL ahead
2026-01-09105.74115.90-0.96XEL ahead
2026-01-08106.11114.53-0.63XEL ahead
2026-01-07104.98114.28-0.81XEL ahead
2026-01-06107.06116.17-0.73XEL ahead
2026-01-05106.32115.61-0.76XEL ahead
2026-01-02107.25116.56-0.74XEL ahead
2025-12-31106.45115.28-0.66XEL ahead
2025-12-30107.25115.80-0.58XEL ahead
2025-12-29106.54115.69-0.69XEL ahead
2025-12-26106.37116.15-0.80XEL ahead
2025-12-24106.28115.64-0.71XEL ahead
2025-12-23106.13115.51-0.71XEL ahead
2025-12-22106.35115.26-0.61XEL ahead
2025-12-19106.62113.42-0.23near the usual relationship
2025-12-18108.13114.89-0.19near the usual relationship
2025-12-17107.99114.16-0.08near the usual relationship
2025-12-16106.86115.08-0.43near the usual relationship
2025-12-15107.13118.18-0.88XEL ahead
2025-12-12106.40117.29-0.85XEL ahead
2025-12-11105.23116.56-0.93XEL ahead
2025-12-10105.69116.47-0.83XEL ahead
2025-12-09106.86118.18-0.88XEL ahead
2025-12-08105.81118.20-1.05XEL ahead
2025-12-05106.98120.46-1.18XEL ahead
2025-12-04107.23121.38-1.27XEL ahead
2025-12-03108.77122.35-1.15XEL ahead
2025-12-02109.89123.37-1.10XEL ahead
2025-12-01111.58124.44-0.98XEL ahead
2025-11-28115.07128.16-0.95XEL ahead
2025-11-26113.72126.81-0.96XEL ahead
2025-11-25111.79125.47-1.07XEL ahead
2025-11-24112.89125.27-0.86XEL ahead
2025-11-21111.72124.35-0.91XEL ahead
2025-11-20110.89124.07-1.00XEL ahead
2025-11-19111.26124.35-0.98XEL ahead
2025-11-18113.26126.42-0.95XEL ahead
2025-11-17113.80126.91-0.93XEL ahead
2025-11-14112.19125.77-1.02XEL ahead
2025-11-13110.99125.08-1.11XEL ahead
2025-11-12112.16125.99-1.05XEL ahead
2025-11-11110.96126.67-1.33XEL ahead
2025-11-10111.01125.49-1.16XEL ahead
2025-11-07112.84126.28-0.99XEL ahead
2025-11-06111.62125.71-1.10XEL ahead
2025-11-05112.70126.72-1.08XEL ahead
2025-11-04113.26127.35-1.08XEL ahead
2025-11-03112.82126.83-1.09XEL ahead
2025-10-31112.63126.69-1.11XEL ahead
2025-10-30114.95127.35-0.85XEL ahead
2025-10-29115.26124.38-0.39near the usual relationship
2025-10-28116.48124.58-0.24near the usual relationship
2025-10-27117.39125.94-0.30near the usual relationship
2025-10-24117.30125.47-0.25near the usual relationship
2025-10-23116.24125.50-0.41near the usual relationship
2025-10-22117.48125.94-0.29near the usual relationship
2025-10-21117.22125.86-0.33near the usual relationship
2025-10-20117.80126.86-0.38near the usual relationship
2025-10-17116.68126.67-0.53XEL ahead
2025-10-16115.65126.58-0.67XEL ahead
2025-10-15116.80127.67-0.66XEL ahead
2025-10-14115.70126.19-0.62XEL ahead
2025-10-13114.41125.11-0.68XEL ahead
2025-10-10114.95126.31-0.77XEL ahead
2025-10-09113.94126.83-0.99XEL ahead
2025-10-08113.85127.75-1.14XEL ahead
2025-10-07114.26127.75-1.09XEL ahead
2025-10-06111.58126.42-1.33XEL ahead
2025-10-03110.72125.27-1.32XEL ahead
2025-10-02109.82124.24-1.33XEL ahead
2025-10-01110.04125.35-1.46XEL ahead
2025-09-30109.91125.88-1.57XEL ahead
2025-09-29108.11124.94-1.75XEL ahead
2025-09-26107.67123.74-1.67XEL ahead
2025-09-25106.91120.57-1.34XEL ahead
2025-09-24108.01121.63-1.33XEL ahead
2025-09-23108.01114.00-0.16near the usual relationship
2025-09-22105.98112.92-0.33near the usual relationship
2025-09-19106.01112.55-0.27near the usual relationship
2025-09-18105.27112.64-0.41near the usual relationship
2025-09-17105.57112.46-0.34near the usual relationship
2025-09-16104.35112.55-0.57XEL ahead
2025-09-15106.06114.02-0.51XEL ahead
2025-09-12105.93114.48-0.61XEL ahead
2025-09-11106.23113.70-0.44near the usual relationship
2025-09-10105.79112.86-0.38near the usual relationship
2025-09-09105.23112.41-0.40near the usual relationship
2025-09-08105.05111.99-0.37near the usual relationship
2025-09-05106.06113.44-0.43near the usual relationship
2025-09-04105.84112.75-0.36near the usual relationship
2025-09-03105.93113.05-0.39near the usual relationship
2025-09-02105.91112.60-0.33near the usual relationship
2025-08-29106.67112.99-0.26near the usual relationship
2025-08-28106.86112.91-0.22near the usual relationship
2025-08-27108.40113.73-0.09near the usual relationship
2025-08-26108.47113.22+0.00near the usual relationship
2025-08-25108.91113.98-0.05near the usual relationship
2025-08-22109.79115.90-0.21near the usual relationship
2025-08-21109.01114.19-0.07near the usual relationship
2025-08-20109.60114.20+0.02near the usual relationship
2025-08-19109.26114.28-0.05near the usual relationship
2025-08-18107.45112.70-0.10near the usual relationship
2025-08-15108.86112.27+0.20near the usual relationship
2025-08-14109.04112.99+0.11near the usual relationship
2025-08-13110.45113.81+0.21near the usual relationship
2025-08-12108.94112.99+0.09near the usual relationship
2025-08-11109.18113.43+0.05near the usual relationship
2025-08-08110.67114.45+0.13near the usual relationship
2025-08-07111.21114.30+0.24near the usual relationship
2025-08-06110.04114.41+0.03near the usual relationship
2025-08-05109.13115.08-0.22near the usual relationship
2025-08-04110.31115.87-0.16near the usual relationship
2025-08-01109.08114.67-0.18near the usual relationship
2025-07-31109.74114.62-0.06near the usual relationship
2025-07-30108.08112.99-0.08near the usual relationship
2025-07-29108.18112.91-0.06near the usual relationship
2025-07-28106.01111.03-0.12near the usual relationship
2025-07-25107.42113.41-0.27near the usual relationship
2025-07-24106.80113.59-0.40near the usual relationship
2025-07-23106.20113.16-0.44near the usual relationship
2025-07-22108.55114.03-0.20near the usual relationship
2025-07-21106.79111.71-0.13near the usual relationship
2025-07-18105.98109.85+0.03near the usual relationship
2025-07-17104.88108.71+0.02near the usual relationship
2025-07-16104.64107.96+0.10near the usual relationship
2025-07-15104.88106.65+0.35near the usual relationship
2025-07-14106.06107.96+0.33near the usual relationship
2025-07-11106.25107.10+0.49near the usual relationship
2025-07-10106.54106.84+0.58EXC ahead
2025-07-09105.35105.88+0.54EXC ahead
2025-07-08105.01105.45+0.55EXC ahead
2025-07-07105.42105.95+0.53EXC ahead
2025-07-03105.32106.43+0.44near the usual relationship
2025-07-02104.81105.45+0.51EXC ahead
2025-07-01106.01107.24+0.41near the usual relationship
2025-06-30106.03106.29+0.57EXC ahead
2025-06-27104.79105.79+0.44near the usual relationship
2025-06-26103.81105.74+0.29near the usual relationship
2025-06-25103.27105.07+0.31near the usual relationship
2025-06-24105.25106.49+0.40near the usual relationship
2025-06-23105.49105.99+0.51EXC ahead
2025-06-20104.03104.01+0.59EXC ahead
2025-06-18103.47103.45+0.59EXC ahead
2025-06-17103.52102.47+0.76EXC ahead
2025-06-16104.22104.25+0.58EXC ahead
2025-06-13105.62105.54+0.60EXC ahead
2025-06-12106.57107.80+0.39near the usual relationship
2025-06-11104.71106.52+0.29near the usual relationship
2025-06-10104.81107.63+0.13near the usual relationship
2025-06-09103.05106.73-0.02near the usual relationship
2025-06-06104.08106.93+0.11near the usual relationship
2025-06-05104.66107.02+0.18near the usual relationship
2025-06-04104.40106.91+0.15near the usual relationship
2025-06-03106.13108.21+0.22near the usual relationship
2025-06-02106.94108.83+0.24near the usual relationship
2025-05-30107.01109.41+0.16near the usual relationship
2025-05-29106.72108.43+0.25near the usual relationship
2025-05-28105.69107.59+0.22near the usual relationship
2025-05-27107.23108.95+0.24near the usual relationship
2025-05-23106.64108.83+0.16near the usual relationship
2025-05-22106.03108.02+0.18near the usual relationship
2025-05-21107.91109.13+0.29near the usual relationship
2025-05-20108.08112.87-0.22near the usual relationship
2025-05-19108.40112.70-0.16near the usual relationship
2025-05-16107.67112.97-0.30near the usual relationship
2025-05-15106.06111.22-0.30near the usual relationship
2025-05-14103.17107.38-0.19near the usual relationship
2025-05-13104.93106.62+0.17near the usual relationship
2025-05-12106.50105.79+0.51EXC ahead
2025-05-09110.40110.21+0.43near the usual relationship
2025-05-08110.13109.52+0.48near the usual relationship
2025-05-07113.16111.38+0.63EXC ahead
2025-05-06113.04110.91+0.67EXC ahead
2025-05-05112.33110.64+0.60EXC ahead
2025-05-02113.50110.46+0.77EXC ahead
2025-05-01113.80109.88+0.88EXC ahead
2025-04-30114.53110.35+0.91EXC ahead
2025-04-29114.41110.30+0.90EXC ahead
2025-04-28113.50108.60+1.01EXC ahead
2025-04-25112.87107.69+1.04EXC ahead
2025-04-24113.14109.71+0.80EXC ahead
2025-04-23114.29111.67+0.69EXC ahead
2025-04-22115.68111.43+0.89EXC ahead
2025-04-21112.89107.65+1.04EXC ahead
2025-04-17115.41109.46+1.11EXC ahead
2025-04-16113.58107.85+1.09EXC ahead
2025-04-15114.14109.68+0.92EXC ahead
2025-04-14114.43110.39+0.86EXC ahead
2025-04-11112.33108.56+0.83EXC ahead
2025-04-10110.18106.77+0.78EXC ahead
2025-04-09108.18107.04+0.48near the usual relationship
2025-04-08108.64104.64+0.86EXC ahead
2025-04-07109.13104.67+0.91EXC ahead
2025-04-04110.74105.96+0.94EXC ahead
2025-04-03115.34112.60+0.65EXC ahead
2025-04-02112.26110.66+0.51EXC ahead
2025-04-01112.14110.38+0.52EXC ahead
2025-03-31112.53110.49+0.55EXC ahead
2025-03-28109.18108.82+0.34near the usual relationship
2025-03-27108.06108.19+0.27near the usual relationship
2025-03-26107.50107.57+0.27near the usual relationship
2025-03-25104.42106.02+0.06near the usual relationship
2025-03-24106.42107.48+0.13near the usual relationship
2025-03-21106.96107.87+0.14near the usual relationship
2025-03-20108.89109.40+0.19near the usual relationship
2025-03-19108.52109.63+0.11near the usual relationship
2025-03-18108.47109.69+0.09near the usual relationship
2025-03-17108.40109.19+0.13near the usual relationship
2025-03-14107.91108.87+0.11near the usual relationship
2025-03-13106.15107.17+0.09near the usual relationship
2025-03-12104.05107.46-0.21near the usual relationship
2025-03-11105.98107.27+0.04near the usual relationship
2025-03-10106.86108.24+0.02near the usual relationship
2025-03-07105.27106.13+0.07near the usual relationship
2025-03-06104.71105.60+0.06near the usual relationship
2025-03-05105.89107.27+0.00near the usual relationship
2025-03-04106.67109.30-0.15near the usual relationship
2025-03-03108.79112.22-0.23near the usual relationship
2025-02-28107.94112.53-0.37near the usual relationship
2025-02-27106.94110.44-0.25near the usual relationship
2025-02-26107.59109.21-0.03near the usual relationship
2025-02-25107.55109.96-0.12near the usual relationship
2025-02-24105.86110.47-0.37near the usual relationship
2025-02-21105.96109.16-0.21near the usual relationship
2025-02-20105.42108.19-0.16near the usual relationship
2025-02-19104.15107.80-0.26near the usual relationship
2025-02-18104.27106.98-0.15near the usual relationship
2025-02-14104.64107.09-0.11near the usual relationship
2025-02-13104.93106.76-0.04near the usual relationship
2025-02-12104.74105.20+0.13near the usual relationship
2025-02-11103.44104.87+0.02near the usual relationship
2025-02-10102.08104.39-0.09near the usual relationship
2025-02-07100.88103.95-0.18near the usual relationship
2025-02-06100.42104.76-0.33near the usual relationship
2025-02-05100.22106.06-0.50XEL ahead
2025-02-0499.00105.07-0.53XEL ahead
2025-02-0399.07105.74-0.60XEL ahead
2025-01-3197.68104.89-0.67XEL ahead
2025-01-3097.73104.35-0.60XEL ahead
2025-01-2996.63103.12-0.59XEL ahead
2025-01-2897.22103.68-0.58XEL ahead
2025-01-2799.39106.12-0.60XEL ahead
2025-01-2496.17103.96-0.75XEL ahead
2025-01-2395.82103.11-0.69XEL ahead
2025-01-2295.78104.54-0.86XEL ahead
2025-01-2198.75105.63-0.62XEL ahead
2025-01-1796.26104.14-0.75XEL ahead
2025-01-1696.07103.32-0.68XEL ahead
2025-01-1592.84101.36-0.86XEL ahead
2025-01-1492.60100.02-0.73XEL ahead
2025-01-1391.7299.30-0.76XEL ahead
2025-01-1091.0998.91-0.80XEL ahead
2025-01-0893.26103.62-1.08XEL ahead
2025-01-0791.65102.45-1.15XEL ahead
2025-01-0692.31101.67-0.97XEL ahead
2025-01-0392.92104.09-1.17XEL ahead
2025-01-0291.97104.35-1.33XEL ahead
2024-12-3191.92105.38-1.46XEL ahead
2024-12-3091.89105.49-1.48XEL ahead
2024-12-2791.40106.35-1.65XEL ahead
2024-12-2691.45106.41-1.66XEL ahead
2024-12-2491.62106.46-1.65XEL ahead
2024-12-2391.16105.70-1.63XEL ahead
2024-12-2090.40105.20-1.68XEL ahead
2024-12-1990.82104.03-1.49XEL ahead
2024-12-1889.28103.64-1.65XEL ahead
2024-12-1789.18106.26-1.99XEL ahead
2024-12-1688.45105.60-2.04XEL ahead
2024-12-1390.04106.32-1.92XEL ahead
2024-12-1289.94106.90-2.03XEL ahead
2024-12-1189.77106.70-2.05XEL ahead
2024-12-1091.14107.93-2.03XEL ahead
2024-12-0991.43107.87-2.01XEL ahead
2024-12-0692.43108.85-2.01XEL ahead
2024-12-0592.75110.60-2.20XEL ahead
2024-12-0492.43110.38-2.25XEL ahead
2024-12-0393.14110.82-2.23XEL ahead
2024-12-0293.70111.13-2.22XEL ahead
2024-11-2996.61113.25-2.09XEL ahead
2024-11-2796.48113.81-2.20XEL ahead
2024-11-2696.43112.17-2.03XEL ahead
2024-11-2595.56111.75-2.14XEL ahead
2024-11-2294.53111.36-2.27XEL ahead
2024-11-2196.00111.41-2.08XEL ahead
2024-11-2094.58109.33-2.05XEL ahead
2024-11-1995.48108.58-1.84XEL ahead
2024-11-1895.80109.16-1.89XEL ahead
2024-11-1595.51108.41-1.85XEL ahead
2024-11-1493.09107.55-2.14XEL ahead
2024-11-1393.14107.15-2.10XEL ahead
2024-11-1293.19107.09-2.12XEL ahead
2024-11-1193.77107.15-2.05XEL ahead
2024-11-0893.06105.15-1.90XEL ahead
2024-11-0793.02103.32-1.66XEL ahead
2024-11-0693.58103.78-1.65XEL ahead
2024-11-0593.94103.53-1.57XEL ahead
2024-11-0492.72102.73-1.67XEL ahead
2024-11-0193.16104.09-1.82XEL ahead
2024-10-3195.97104.28-1.39XEL ahead
2024-10-3096.9598.41-0.32near the usual relationship
2024-10-2996.5898.86-0.45near the usual relationship
2024-10-2898.24100.64-0.47near the usual relationship
2024-10-2597.85100.61-0.53XEL ahead
2024-10-2499.41101.62-0.44near the usual relationship
2024-10-2399.49100.39-0.24near the usual relationship
2024-10-2298.9799.39-0.17near the usual relationship
2024-10-2198.9099.00-0.12near the usual relationship
2024-10-18100.00100.00-0.11near the usual relationship

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Oct 31, 2024 (EXC -1.0%, XEL +6.0%); Sep 24, 2025 (EXC +0.0%, XEL +6.7%); Feb 12, 2026 (EXC +7.0%, XEL +1.4%); Apr 30, 2026 (EXC -2.2%, XEL +5.2%). Upcoming earnings: XEL Oct 29, 2026 (pre-market); EXC 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)

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

EXC and XEL at a glance

EXC Exelon Corporation

Listing
Nasdaq · SEC CIK 1109357
Industry
Power Generation · SIC 4931 Electric & Other Services Combined
Market value
$43.8B
Price history
2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

XEL Xcel Energy Inc.

Listing
Nasdaq · SEC CIK 72903
Industry
Power Generation · SIC 4931 Electric & Other Services Combined
Market value
$46.9B
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
DUK / EXCMeasured twinDUK by 1.62 sdPower Generation
DUK / XELMeasured twinDUK by 0.29 sdPower Generation

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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.