MTS Monthly Review – January 2026
- Youngkook Jung
- Feb 11
- 3 min read
Reporting Period:January 5 – January 30, 2026(Friday close basis)
1. Monthly Overview
January was the first full month of 2026 operations under the MTS framework.From a regime perspective, the month was remarkably stable.
Starting Regime: UP
Ending Regime: UP
Regime Changes: 0
Final YTD Return (MTS $): -0.86%
Final YTD Return (SPY $): -0.50%
Alpha vs SPY ($): -0.36%
Maximum Drawdown (MTS $): -0.86%
Although the portfolio experienced a modest negative return, the system behaved exactly as designed, with no deviations from the predefined process.
2. Regime Flow for January
Week | Period | Regime |
Week 1 | Jan 5 – Jan 9 | UP |
Week 2 | Jan 12 – Jan 16 | UP |
Week 3 | Jan 19 – Jan 23 | UP |
Week 4 | Jan 24 – Jan 30 | UP |
Week 5 | Final Week | UP |
Throughout the entire month, the MTS signal remained firmly in UP regime.No regime transitions occurred, which meant that the allocation strategy stayed consistent from start to finish.
3. Asset Allocation
As dictated by the UP regime rules, the portfolio maintained the following allocation during January:
SPYM: 56%
SPXL: 14%
SGOV: 30%
No discretionary adjustments were made.All portfolio actions strictly followed the predefined allocation framework.
This is an important point: The absence of action is also a form of disciplined execution.
4. Performance Summary
Weekly Performance Breakdown
Week | MTS Weekly Return ($) | SPY Weekly Return ($) | Alpha ($) |
Week 2 | -0.23% | -0.35% | +0.12% |
Week 3 | -0.22% | -0.35% | +0.13% |
Week 4 | -0.05% | +0.40% | -0.45% |
Week 5 | -0.36% | -0.20% | -0.16% |
Key Observations
The first half of January showed slight outperformance versus SPY
Later weeks delivered mild underperformance, primarily due to:
Short-term market fluctuations
The leveraged component (SPXL) within the UP allocation
Overall results remained well within expected behavioral ranges for the strategy
Importantly, nothing in the performance required or justified any discretionary intervention.
5. System Integrity Check
A core objective of the monthly review is to confirm that the system operated exactly as intended.
Process Verification
All trades were executed according to predefined rules
No emotional or discretionary decisions were introduced
Portfolio weights remained aligned with regime definitions
Weekly logs confirm full compliance
Conclusion:January was a textbook example of rule-based investing in action.
6. Risk Notes Recap
From the weekly risk logs, several themes emerged:
A minor configuration mismatch was identified early in the month and corrected promptly
Earnings expectation drift remained supportive of the current UP regime
MTS values approached regime boundaries at times, but never triggered a transition
Sensitivity to new data increased near month-end, but overall stability was maintained
In short: The system was tested, but never broken.
7. Lessons from January
This month provided several valuable reminders:
Discipline is more important than short-term outcomesSmall losses are acceptable when the process is sound.
Stability of regime mattersA month with zero regime changes demonstrates the value of structured decision-making.
Underperformance is normalTemporary deviations from benchmarks are part of any systematic strategy.
8. Outlook for February
Looking ahead:
Continue operating under the current rule set
Monitor MTS signals for potential regime boundary movements
Maintain full commitment to process over performance
At this stage, no structural changes to the MTS framework are required.
Final Thoughts
January 2026 reinforced the core philosophy of this project: Rules Over Emotion
The portfolio did not deliver spectacular returns, but it delivered something far more important:
Consistency
Transparency
Process integrity
And that is exactly what the MTS system is designed to achieve.
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