Weekly structural research ยท NYSE ยท Industrials

MEC Stage Analysis

Mayville Engineering Co Inc

Week ending 9 Oct 2026Close USD 15.11Tenure DevelopingBenchmark SPY
Executive diagnosis

What the Activity Line geometry says now

Structure, not prediction
Rotation Down ยท Structural failure

The Activity Line structure is rotating downward.

Fast Activity is weakening relative to Slow Activity and price acceptance is deteriorating. Persistent negative Trend confirmation would establish Downward Expansion.

  • The Trend gate is down within the current regime.
  • Fast Activity versus Slow Activity: weakening.
  • Activity structure: wide and expanding.
Direction -78โˆ’100 bearish to +100 bullish
Energy 87/100directional strength
Maturity 34/100lifecycle context
Confidence 90/100evidence agreement
Trend gate Downstructural direction
Activity structure Wideexpanding separation
Price acceptance -100.0%position within the Activity structure
Fair Value context -13.5%USD 17.47 ยท weakening
Trend Architecture map ยท Historical context

Weekly close, Activity, Trend and Fair Value

Follow price and Trend first, then add Activity Lines to inspect the structure. Subtle bands show the regime recognized at each completed observation; the dashed line marks current Fair Value, not a historical forecast.

CloseTrendCurrent Fair Value
Background stage key
  • BalanceDirection is contained.
  • Rotation UpStructure is turning higher.
  • Upward ExpansionUptrend is established.
  • DecelerationUptrend is losing energy.
  • Rotation DownStructure is turning lower.
  • Downward ExpansionDowntrend is established.
View chart values ยท 156 observations
WeekCloseTrendRelative StrengthVolumeRegimeDirectionEnergy
2026-10-0915.1124.42-36.362076936Rotation Down-7887
2026-10-0216.4424.47-29.993503683Rotation Down-4874
2026-09-2517.1624.56-27.052730138Rotation Down-4773
2026-09-1817.2024.69-25.883679970Rotation Down-5175
2026-09-1119.1024.86-17.721407997Rotation Down-3870
2026-09-0419.6624.95-15.791959226Rotation Down-3969
2026-08-2819.3225.02-17.032492383Rotation Down-4263
2026-08-2121.7325.03-6.103059306Deceleration-3643
2026-08-1424.0924.913.052872289Deceleration-827
2026-08-0724.1824.734.154652376Deceleration321
2026-07-3125.6724.5415.163387660Deceleration2322
2026-07-2430.2924.3238.052539822Upward Expansion4433
2026-07-1730.9223.9441.512806671Upward Expansion6151
2026-07-1033.7223.4953.651779879Upward Expansion6665
2026-07-0333.5522.9956.882649285Upward Expansion6882
2026-06-2637.0022.4278.902984385Upward Expansion8393
2026-06-1935.6821.7571.222366757Upward Expansion8694
2026-06-1235.4821.0874.313785859Upward Expansion9496
2026-06-0533.2520.4466.994979033Upward Expansion9493
2026-05-2926.8519.8833.351550086Upward Expansion7683
2026-05-2225.4519.5829.024125989Upward Expansion7081
2026-05-1525.2919.2830.062085928Upward Expansion7684
2026-05-0827.2018.8640.971542188Upward Expansion9188
2026-05-0122.2418.3818.89743551Upward Expansion6965
2026-04-2421.9618.1019.12392449Deceleration5845
2026-04-1721.0217.8215.30605714Deceleration4929
2026-04-1020.4817.5917.94604918Deceleration2818
2026-04-0318.2117.389.14621143Deceleration225
2026-03-2717.7017.279.94587584Deceleration426
2026-03-2016.6417.171.30773808Deceleration321
2026-03-1316.6717.10-0.30906539Upward Expansion1813
2026-03-0619.1817.0212.941805139Upward Expansion6148
2026-02-2721.0016.8421.51613351Upward Expansion6581
2026-02-2022.1216.6927.85467124Upward Expansion7685
2026-02-1321.9416.4828.90689143Upward Expansion7981
2026-02-0621.6516.2626.19927823Upward Expansion8272
2026-01-3019.6016.0814.40775247Upward Expansion6745
2026-01-2318.3915.997.91430042Upward Expansion5741
2026-01-1618.6615.919.081110838Upward Expansion5950
2026-01-0918.4115.837.27818431Upward Expansion5954
2026-01-0218.9515.7012.26718387Upward Expansion6869
2025-12-2619.1115.5712.15480578Upward Expansion7366
2025-12-1917.3315.453.231235682Upward Expansion5749
2025-12-1218.6215.3810.86828596Upward Expansion7446
2025-12-0516.5015.28-2.44641741Rotation Up5534
2025-11-2816.9915.220.45622174Rotation Up3640
2025-11-2115.6115.10-4.562061068Rotation Up1946
2025-11-1416.0415.00-4.19874652Balance2940
2025-11-0716.5514.87-1.401593664Balance5042
2025-10-3117.8214.744.091031942Balance5734
2025-10-2416.5214.57-3.702392171Rotation Down1110
2025-10-1712.5814.47-25.84682430Rotation Down-4558
2025-10-1012.9614.52-23.25514451Rotation Down-4149
2025-10-0313.7114.56-21.75597525Balance-3134
2025-09-2613.5714.58-22.54708295Balance-2523
2025-09-1914.3114.63-19.57800861Balance-1516
2025-09-1214.2014.66-20.00493960Balance-1820
2025-09-0514.8714.70-15.69386318Balance-1015
2025-08-2914.6014.74-17.61502054Balance-1120
2025-08-2214.4314.78-19.28526747Balance-1116
2025-08-1514.4514.84-19.64847153Balance1815
2025-08-0813.6814.88-23.861360914Upward Expansion1312
2025-08-0116.4014.92-7.36754623Upward Expansion5934
2025-07-2516.1014.89-11.67380599Upward Expansion5736
2025-07-1815.3014.87-15.36490246Rotation Up5643
2025-07-1116.1814.90-10.52353744Rotation Up3250
2025-07-0416.8014.93-7.69426799Rotation Up4544
2025-06-2716.1914.95-9.70909102Rotation Up3027
2025-06-2015.9814.97-8.06710664Rotation Up3132
2025-06-1314.5915.00-16.32504449Rotation Up1824
2025-06-0615.0015.08-14.63579725Rotation Up2132
2025-05-3015.7615.15-9.18434848Downward Expansion2735
2025-05-2315.1615.34-11.32581283Downward Expansion-1024
2025-05-1615.5915.50-11.31624789Downward Expansion-1217
2025-05-0914.7515.67-11.84635976Downward Expansion-4233
2025-05-0213.3215.88-21.01507200Downward Expansion-6556
2025-04-2512.5116.10-23.84566528Downward Expansion-6975
2025-04-1812.2516.40-22.25446010Downward Expansion-7985
2025-04-1112.7316.66-20.61468852Downward Expansion-7680
2025-04-0412.5716.87-17.32415917Downward Expansion-8482
2025-03-2813.5317.07-19.18412364Downward Expansion-7773
2025-03-2113.9917.26-17.84563351Downward Expansion-7469
2025-03-1414.3517.44-15.44920488Downward Expansion-6960
2025-03-0714.3617.61-17.31936903Downward Expansion-7461
2025-02-2814.9517.76-16.60391464Downward Expansion-6866
2025-02-2115.0717.85-16.71197484Downward Expansion-6858
2025-02-1415.5117.98-15.55261177Downward Expansion-5140
2025-02-0716.0118.09-11.49196766Downward Expansion-4636
2025-01-3115.8518.13-12.45363683Downward Expansion-5742
2025-01-2416.2518.15-11.10270497Downward Expansion-6050
2025-01-1715.7718.16-12.30462536Downward Expansion-6266
2025-01-1014.6818.16-16.05498387Downward Expansion-7475
2025-01-0315.4718.22-13.44522975Rotation Down-6861
2024-12-2715.6918.25-12.82339047Rotation Down-4246
2024-12-2016.1918.26-9.71758508Rotation Down-3941
2024-12-1317.1718.24-6.16433000Rotation Down-2244
2024-12-0617.1418.18-6.95504690Rotation Down-2249
2024-11-2916.8518.15-7.77242288Upward Expansion-2737
2024-11-2216.9918.05-5.92528420Upward Expansion-2430
2024-11-1516.8117.95-5.39924026Upward Expansion-616
2024-11-0817.1517.86-5.501798496Upward Expansion1510
2024-11-0121.4917.7424.23693120Upward Expansion6847
2024-10-2519.9917.4814.64379471Upward Expansion5843
2024-10-1820.7417.2918.42282441Upward Expansion6458
2024-10-1121.0017.0721.52529973Upward Expansion6861
2024-10-0420.0516.8018.05553336Upward Expansion6149
2024-09-2721.4616.5627.39742530Upward Expansion8157
2024-09-2019.9416.2619.95546822Upward Expansion7149
2024-09-1319.2215.9917.97423534Upward Expansion6447
2024-09-0618.3715.7617.96475570Upward Expansion6251
2024-08-3019.3115.5619.58480150Upward Expansion6758
2024-08-2319.4215.3321.15547533Upward Expansion7159
2024-08-1619.5215.1324.21618730Upward Expansion7769
2024-08-0918.8614.9325.49576181Upward Expansion7274
2024-08-0217.5614.7517.45666120Upward Expansion6472
2024-07-2619.0214.6124.99703795Upward Expansion8184
2024-07-1918.6314.4622.09760811Upward Expansion8473
2024-07-1217.4314.3112.53555935Upward Expansion7555
2024-07-0516.2514.196.39241856Upward Expansion6149
2024-06-2816.6614.0811.421039993Upward Expansion7160
2024-06-2115.7613.955.50380912Upward Expansion6464
2024-06-1416.4513.8610.62496900Upward Expansion7272
2024-06-0716.4113.7412.01469902Upward Expansion7475
2024-05-3116.0213.5810.42288694Upward Expansion7377
2024-05-2415.3913.455.72564994Upward Expansion6670
2024-05-1715.5013.296.42472543Upward Expansion7067
2024-05-1016.2413.1613.22780509Upward Expansion8163
2024-05-0313.8913.01-1.07229842Upward Expansion5230
2024-04-2614.0612.920.94308625Upward Expansion5633
2024-04-1913.8812.822.15222217Upward Expansion5348
2024-04-1213.5712.72-3.29451188Upward Expansion5453
2024-04-0513.7212.64-3.92481847Upward Expansion5452
2024-03-2914.3312.55-1.01197414Deceleration5442
2024-03-2214.1912.48-2.27220153Deceleration5029
2024-03-1512.8512.38-9.93282103Deceleration2012
2024-03-0813.0212.34-9.32240867Deceleration914
2024-03-0112.4712.32-14.03197579Deceleration-1622
2024-02-2311.6812.31-19.45132436Deceleration-2728
2024-02-1612.1912.32-15.62198336Deceleration1016
2024-02-0912.4712.31-14.88218848Deceleration2016
2024-02-0212.4712.26-14.44240260Deceleration2816
2024-01-2613.4912.22-6.97183519Upward Expansion4023
2024-01-1913.3912.19-7.36116893Upward Expansion5334
2024-01-1213.5012.19-5.86131610Upward Expansion5740
2024-01-0513.4512.21-4.90270539Upward Expansion6157
2023-12-2914.4212.250.04169962Rotation Up7370
2023-12-2214.0512.19-2.38271536Rotation Up4457
2023-12-1513.8312.13-3.32384523Rotation Up4457
2023-12-0813.1012.09-6.61186990Rotation Up3751
2023-12-0112.8312.02-8.60237087Balance2241
2023-11-2412.9311.92-7.34125096Balance2531
2023-11-1712.9511.90-6.21242237Balance2417
2023-11-1011.4111.86-15.46296582Balance-2913
2023-11-0312.1311.90-8.98449405Downward Expansion-2112
2023-10-2710.7311.94-14.68255974Downward Expansion-4824
2023-10-2011.6512.08-9.18398975Downward Expansion-3720
Price vs TrendBelow-38.1%
Trend directionFalling-0.5%
Price vs current Fair ValueBelow anchor-13.5%
Fair Value directionMoving away-116.2%
Relative Strength vs benchmarkLagging-36.4%
Relative strength directionWeakening-90.0%
Price momentumNegative-26.2%
Volume balanceSupply-led0.06ร—
Beyond the current label

Is the structure strengthening or losing force?

Direction and energy measure different things

Direction shows the upward or downward lean. Energy shows the force behind the structural move: high energy can accompany a strong decline as well as an advance.

Direction

-78 / ยฑ100

-40.4 points since 2026-09-11

Energy

87 /100

+17.2 points since 2026-09-11

Recent change compares the latest reading with four observations earlier. Missing readings remain unavailable. Use the chart values above to inspect individual observations.

Comparative structural evidence

Why this architecture regime won

Every regime is evaluated
Balance8
Rotation Up13
Upward Expansion21
Deceleration38
Rotation Down79
Downward Expansion99

The winning regime is the state most consistent with the complete SM evidence set. Direction, energy, maturity and confidence describe different aspects of the current structure, while contradictory evidence remains visible rather than being averaged into false certainty.

Time spent in each state

The context behind todayโ€™s regime

2023-10-20 to 2026-10-09 ยท 156 classified observations out of 156 shown.

Balance 10%Rotation Up 9%Upward Expansion 44%Deceleration 12%Rotation Down 10%Downward Expansion 15%
Recent Trend Architecture ledger
RegimeRecognizedLast observationTenureMove inside regime
Rotation Down2026-08-282026-10-09Developing-21.8%
Deceleration2026-07-312026-08-21New-15.3%
Upward Expansion2026-05-012026-07-24Established+36.2%
Deceleration2026-03-202026-04-24Developing+32.0%
Upward Expansion2025-12-122026-03-13Established-10.5%
Rotation Up2025-11-212025-12-05New+5.7%
Balance2025-10-312025-11-14New-10.0%
Rotation Down2025-10-102025-10-24New+27.5%
Balance2025-08-152025-10-03Developing-5.1%
Upward Expansion2025-07-252025-08-08New-15.0%
Rotation Up2025-06-062025-07-18Developing+2.0%
Downward Expansion2025-01-102025-05-30Established+7.4%
Rotation Down2024-12-062025-01-03Developing-9.7%
Upward Expansion2024-04-052024-11-29Extended+22.8%
Classic Stage Analysis comparison
Stage 1 ยท Basing63
Stage 2 ยท Advancing0
Stage 3 ยท Distribution43
Stage 4 ยท Declining100

Legacy result: Stage 4 ยท Stage 4A ยท Breakdown. It remains visible while the experimental architecture is validated rather than being silently discarded.

Leadership versus SPY

Is relative performance confirming the geometry?

Confirmation, not classification

Relative Strength

The security is compared with its market benchmark on the SM scale. Above zero indicates relative leadership; direction shows whether that leadership is improving or weakening.

Confirmation evidence

Lagging benchmark

Architecture confirmation
100/100
Current Relative Strength
-36.36
Relative Strength direction
Weakening
Price momentum
-26.2%
Excess performance vs benchmark
-41.1%
Industrials regime cohort
100th percentile37 in cohort
Participation and structure

Is demand confirming the architecture?

Volume cannot overrule geometry
Relative volume0.73ร—

Latest completed volume relative to typical participation.

Up/down volume0.06ร—

Participation balance between advancing and declining observations.

Accumulation / distribution0 / 6

Recent participation evidence classified by demand and supply.

Activity alignment+0.0%

Current positive alignment across Activity and Trend.

Fast/slow rotationWeakening

Current relationship between Fast Activity and Slow Activity.

Structure stability+25.0%

Whether recent Activity evidence is stable or remains in balance.

Weekly volume with architecture context

Bars show completed weekly volume; the dashed line provides typical-volume context. Both measures use the same scale.

Decision architecture

References that would change the structural read

Evidence levels, not orders
Fast Activity USD 16.42falling
Slow Activity USD 23.89falling
Trend Reference USD 24.42-38.1% close margin
Current Fair Value USD 17.47-13.5% close margin
Structural low USD 14.36shock / repair context
What changes the read?

Complete bearish ordering below the Trend Line confirms Downward Expansion; a repaired fast/slow cross and upside acceptance cancel the failure.

Range context +21.6%
Annualized volatility +62.2%
From structural high -61.0%
From structural low +23.3%
Point-in-time evidence

What followed this architecture in this market?

Descriptive history, never a forecast

Historical comparisons use only the structural read that would have been available at each completed observation. Independent observations are used where possible, with benchmark comparison beginning after each recognized state.

Outcome horizon Samples Median movePositive periodsDirectional follow-through Median excess vs SPY Regime survived Read
Near term8-1.2%-23.5% to +33.9%+50.0%+50.0%-3.0%+50.0%Usable descriptive sample
Intermediate4+6.7%-16.2% to +42.1%+75.0%+25.0%+1.2%+0.0%Too little matched history
Extended4-4.2%-32.3% to +58.0%+50.0%+50.0%-7.7%+0.0%Too little matched history
Full cycle3-3.7%-51.5% to +48.2%+33.3%+66.7%-17.9%+0.0%Too little matched history
Evidence framework

What the analysis measures and where its limits lie

Trend Architecture

Trend Architecture brings Price, Fast Activity, Slow Activity and Trend into one structural read. It identifies balance, rotation, expansion, deceleration and contraction while requiring persistent evidence for confirmed regime changes.

Evidence roles

Trend, Activity, relative strength, volume and Fair Value each have a defined role in the SM evidence framework. No single reading is treated as sufficient on its own, and conflicting evidence remains visible.

Fair Value and RS

Current Fair Value provides a long-term price anchor and shows whether price is trading above, below or repairing toward that reference. Relative Strength compares the security with its benchmark and shows whether leadership is improving or weakening.

Known limitations

Weekly structure recognizes conditions after they develop. Event gaps can bypass smooth transitions, sideways markets can rotate repeatedly, and historical samples for a particular regime can be thin.

Independent market research for education. Not investment advice, a recommendation, a forecast, a target, or an execution instruction. Historical regime behaviour does not establish what happens next.

Evidence context