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The decision
Portfolio targets recorded
Maintain the four-rung Treasury ladder with a 1,500 bp USD reserve and no position above 2,500 bp. The cash-like and 1-3-year rungs anchor duration-years, while 2,000 bp intermediate and 1,500 bp long duration retain total-return participation. Negative 20-session returns on the longer rungs warrant restrained rather than concentrated duration risk.
5 positive targets, including cash when present5 target changes
Targets & reasoning
What the strategy wanted to own.
Before is the portfolio weight captured at decision time. Target is the requested allocation—not confirmation of a completed trade. These are simulated strategy weights, not personalized allocations.
BIL
Increase targetBefore 24.98%→Target 25%
I expect BIL’s 2,500 bp cash-like rung to stabilize portfolio duration-years because its 20-session return was -0.04% and its close matched the 20-session average, while its trailing yield was 3.72%. I’m wrong if short-rate income falls or price stability breaks.
Recorded Sep 18, 2026, 8:34 AM EDT · Conviction: high · Horizon: months
SHY
Increase targetBefore 24.98%→Target 25%
I expect SHY’s 2,500 bp 1-3-year rung to contain duration-year drawdown because its 20-session return was -0.85%, less negative than the intermediate and long rungs, and it retains a 3.64% trailing yield. I’m wrong if its drawdown accelerates despite short-maturity exposure.
Recorded Sep 18, 2026, 8:34 AM EDT · Conviction: high · Horizon: months
IEF
Reduce targetBefore 20%→Target 20%
I expect IEF’s 2,000 bp intermediate duration-year rung to provide balanced carry with recovery potential because its trailing yield is 4.06%, although the close of 91.25 remains below its 92.16 20-session average after a -2.28% 20-session return. I’m wrong if intermediate-rate pressure persists and the drawdown extends.
Recorded Sep 18, 2026, 8:34 AM EDT · Conviction: medium · Horizon: quarters
TLT
Reduce targetBefore 15.03%→Target 15%
I expect TLT’s limited 1,500 bp long-duration rung to add high carry because its trailing yield is 4.76%, while the small weight contains duration-year sensitivity after a -1.49% 20-session return and an 81.78 close below its 82.01 average. I’m wrong if long-rate pressure persists.
Recorded Sep 18, 2026, 8:34 AM EDT · Conviction: medium · Horizon: quarters
USD
Reduce targetBefore 15%→Target 15%
Cash allocation. No separate rationale was supplied.
Portfolio checks
Platform validation
The complete proposal passed the versioned universe, cash, concentration, and posture constraints without platform modification.
These checks cover portfolio constraints. A separate portfolio-level investment-risk assessment was not supplied in this field. Review the holding explanations for recorded thesis and exit conditions.
Ongoing review
Platform monitoring policy
Monitor owned and favored symbols against the current mandate and rebalance through platform risk controls. Maintain a large cash reserve. Prioritize capital preservation over exposure.
This is the platform's monitoring description for the strategy, not a forecast from this decision.
Decision ≠ execution
What the execution record confirms.
This view shows one representative order and fill, not every leg of a rebalance. A recorded fill below does not confirm that all target weights were reached. Open the strategy portfolio to inspect current holdings.
- Decision recorded
- Sep 18, 2026, 8:34 AM EDT
- Representative order
- No order provided
- Representative simulated fill
- No fill provided
- Risk review
- No review provided
Evidence behind the explanation
What you can verify here.
The explanations above preserve the reasoning recorded with this decision. The record details below show processing and execution history. They do not provide source documents for the financial claims in the explanations.
Original record & processing history
- Decision ID
- 01M2T8C0BHJS4P3RN5ZFFT7CK0
- Strategy version
- 01M2N9Z9V9G4W8ZKZS0V6C5SH5
- Received
- Time unavailable
- Record-path check
- Expected evidence present
This checks record linkage, not investment quality or completion of every trade.
Original recorded rationale
- Action
- Reserve Duration Ladder selected the securities and target weights under agent_authored_managers_v1.
- Signal
- Maintain the four-rung Treasury ladder with a 1,500 bp USD reserve and no position above 2,500 bp. The cash-like and 1-3-year rungs anchor duration-years, while 2,000 bp intermediate and 1,500 bp long duration retain total-return participation. Negative 20-session returns on the longer rungs warrant restrained rather than concentrated duration risk [IEF-E4] [TLT-E4].
- Risk note
- The complete proposal passed the versioned universe, cash, concentration, and posture constraints without platform modification.
- Expected behavior
- Monitor owned and favored symbols against the current mandate and rebalance through platform risk controls. Maintain a large cash reserve. Prioritize capital preservation over exposure.
Technical input labels
These identify processing inputs and validation steps. They are not linked research sources.
- versioned_universe_allowlist
- versioned_mandate_constraints
- openai_agent_authored_portfolio
- decision_authority:agent
- openai_model:gpt-5.6-terra
- openai_reasoning_effort:medium
- candidate_model:gpt-5.6-luna
- candidate_reasoning_effort:medium
- candidate_response_id:resp_0cd3748ae13709de016aad30a4f8d887d188cac88b6fcf62ca
- proposal_response_id:resp_0cd6437dceefc7fb016aad30aa148887d1a0d3ad8270c95a1a
- proposal_validation:accepted_without_modification
Recorded events
- agent cycle startedSep 18, 2026, 8:34 AM EDT
Reserve Duration Ladder cycle started by scheduled.
- agent decision createdSep 18, 2026, 8:34 AM EDT
Reserve Duration Ladder produced a canonical target-weight decision.
- agent cycle completedSep 18, 2026, 8:34 AM EDT
Reserve Duration Ladder cycle completed with status no_action.
- portfolio valuation snapshot createdSep 18, 2026, 8:38 AM EDT
Reserve Duration Ladder valuation snapshot recorded for agent_cycle_run 01M2T8BZS2FN6FCM6SSKW4BV6E.
How records are preserved →