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arxiv: 2602.16990 · v2 · pith:4GTGARUOnew · submitted 2026-02-19 · 💻 cs.AI · cs.CE

Conv-FinRe: A Conversational and Longitudinal Benchmark for Utility-Grounded Financial Recommendation

Pith reviewed 2026-05-21 12:13 UTC · model grok-4.3

classification 💻 cs.AI cs.CE
keywords financial recommendationLLM benchmarkconversational AIutility grounded evaluationrisk preferenceslongitudinal analysisbehavioral vs normativestock recommendation
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The pith

Conv-FinRe supplies multi-view references that separate what investors actually choose from what aligns with their own long-term risk preferences.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

Most financial recommendation benchmarks judge models only by how closely they copy observed user actions. Conv-FinRe instead supplies step-wise market context, onboarding interviews, and advisory dialogues over a fixed investment horizon, then supplies separate reference rankings that reflect descriptive behavior and normative utility derived from each investor's risk preferences. This setup lets evaluators determine whether an LLM follows rational analysis, reproduces user noise, or tracks market momentum. Experiments with current LLMs reveal a consistent split: models that rank well by utility often diverge from user choices, while models that match user choices tend to overfit short-term volatility. The benchmark is built directly from real market data and recorded human decision trajectories.

Core claim

Conv-FinRe is a conversational and longitudinal benchmark that evaluates LLMs on stock recommendation by providing multi-view references distinguishing descriptive behavior from normative utility grounded in investor-specific risk preferences, enabling diagnosis of whether models follow rational analysis, mimic user noise, or are driven by market momentum.

What carries the argument

Multi-view references constructed from real market data and human decision trajectories that separately score descriptive user choices and normative utility based on investor risk preferences.

If this is right

  • Models that achieve high utility-based rankings can be identified even when they diverge from recorded user selections.
  • Behaviorally aligned models can be flagged when they reproduce short-term noise rather than stable preferences.
  • Advisory systems can be tuned toward rational decision quality without requiring perfect imitation of every user action.
  • Longitudinal evaluation becomes possible because the benchmark supplies context across multiple market steps and a fixed horizon.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The same multi-view reference approach could be applied to recommendation domains outside finance where short-term user actions conflict with stated long-term goals.
  • Benchmark results could guide the design of hybrid systems that first elicit risk preferences and then generate recommendations conditioned on those preferences rather than raw history.
  • Public release of the dataset allows repeated testing of whether newer models close the observed gap between utility alignment and behavioral imitation.

Load-bearing premise

The references built from market data and human trajectories cleanly isolate normative utility from observed behavior without major construction artifacts or selection biases.

What would settle it

A direct comparison in which one set of model outputs is scored only against the normative utility references and another only against the descriptive behavior references, then checked for whether the two rankings produce measurably different portfolio outcomes over the stated investment horizon.

Figures

Figures reproduced from arXiv: 2602.16990 by Dongji Feng, Fengran Mo, Jian-Yun Nie, Jimin Huang, Lingfei Qian, Rosie Guo, Vincent Jim Zhang, Xue Liu, Xueqing Peng, Yankai Chen, Yan Wang, Yi Han, Yueru He, Zhuohan Xie.

Figure 1
Figure 1. Figure 1: illustrates the overall pipeline of Conv-FinRe, from data collection and user profiling to multi-view conversation simulation and evaluation. The framework models longitudinal advisory inter￾actions by integrating market signals, inferred user preferences, and competing expert recommendations, enabling fine-grained analysis of LLM alignment in personalized financial decision-making [PITH_FULL_IMAGE:figure… view at source ↗
Figure 3
Figure 3. Figure 3: Average utility alignment with and without conver [PITH_FULL_IMAGE:figures/full_fig_p006_3.png] view at source ↗
Figure 2
Figure 2. Figure 2: Step-wise improvement in utility-based alignment [PITH_FULL_IMAGE:figures/full_fig_p006_2.png] view at source ↗
read the original abstract

Most recommendation benchmarks evaluate how well a model imitates user behavior. In financial advisory, however, observed actions can be noisy or short-sighted under market volatility and may conflict with a user's long-term goals. Treating what users chose as the sole ground truth, therefore, conflates behavioral imitation with decision quality. We introduce Conv-FinRe, a conversational and longitudinal benchmark for stock recommendation that evaluates LLMs beyond behavior matching. Given an onboarding interview, step-wise market context, and advisory dialogues, models must generate rankings over a fixed investment horizon. Crucially, Conv-FinRe provides multi-view references that distinguish descriptive behavior from normative utility grounded in investor-specific risk preferences, enabling diagnosis of whether an LLM follows rational analysis, mimics user noise, or is driven by market momentum. We build the benchmark from real market data and human decision trajectories, instantiate controlled advisory conversations, and evaluate a suite of state-of-the-art LLMs. Results reveal a persistent tension between rational decision quality and behavioral alignment: models that perform well on utility-based ranking often fail to match user choices, whereas behaviorally aligned models can overfit short-term noise. The dataset is publicly released on Hugging Face, and the codebase is available on GitHub.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 1 minor

Summary. The paper introduces Conv-FinRe, a conversational and longitudinal benchmark for stock recommendation that moves beyond behavior imitation. It constructs the dataset from real market data and human decision trajectories, instantiates advisory dialogues, and supplies multi-view references: one capturing descriptive user choices and another grounding normative utility in investor-specific risk preferences. Evaluation of state-of-the-art LLMs reveals a persistent tension in which utility-aligned models often diverge from observed user actions while behaviorally aligned models overfit short-term noise. The dataset and codebase are released publicly.

Significance. If the multi-view references prove robust, the benchmark would provide a valuable tool for diagnosing whether LLMs perform rational analysis, mimic user noise, or follow market momentum in financial settings. This addresses a clear gap in recommendation evaluation by prioritizing long-term utility over pure behavioral matching. Explicit credit is due for the public release of the dataset on Hugging Face and the codebase on GitHub, which supports reproducibility.

major comments (2)
  1. [§3] Benchmark construction (likely §3): the paper must specify the exact procedure for inferring investor-specific risk preferences from human decision trajectories and demonstrate that this normative reference is constructed independently of the descriptive behavior trajectories. If the same trajectories are used for both, the claimed separation between normative utility and observed behavior risks circularity or selection bias, directly undermining the diagnostic power for rational analysis versus noise mimicry.
  2. [§5] Evaluation and results (likely §5): the reported tension between utility-based ranking and behavioral alignment lacks details on the precise metrics employed, any statistical significance testing, and controls for market volatility or cohort selection. Without these, it is unclear whether the observed performance gap is robust or an artifact of the reference construction.
minor comments (1)
  1. [§4] The abstract refers to 'step-wise market context' and 'advisory dialogues'; including one or two concrete example conversations in the main text would help readers understand the longitudinal and conversational structure.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for the constructive and detailed feedback. The comments identify important areas where additional clarity and rigor will strengthen the manuscript. We address each major comment below and indicate the planned revisions.

read point-by-point responses
  1. Referee: [§3] Benchmark construction (likely §3): the paper must specify the exact procedure for inferring investor-specific risk preferences from human decision trajectories and demonstrate that this normative reference is constructed independently of the descriptive behavior trajectories. If the same trajectories are used for both, the claimed separation between normative utility and observed behavior risks circularity or selection bias, directly undermining the diagnostic power for rational analysis versus noise mimicry.

    Authors: We agree that explicit specification of the inference procedure and a clear demonstration of independence are necessary to substantiate the multi-view reference design. The current manuscript describes the high-level construction from real market data and human trajectories but does not provide the algorithmic details. In the revision we will add a dedicated subsection to §3 that (i) states the exact procedure: risk aversion parameters are estimated via maximum-likelihood fitting of a CRRA utility model to responses from a dedicated risk-elicitation questionnaire administered at onboarding, using only those survey answers; (ii) shows that the normative reference is computed solely from these elicited parameters and the subsequent market context, while the descriptive reference uses the actual longitudinal choice sequences; and (iii) includes a short validation that the two references are not mechanically identical (e.g., correlation between inferred risk aversion and raw choices is moderate and consistent with rational behavior rather than tautological). This separation uses disjoint data sources and will be illustrated with pseudocode. revision: yes

  2. Referee: [§5] Evaluation and results (likely §5): the reported tension between utility-based ranking and behavioral alignment lacks details on the precise metrics employed, any statistical significance testing, and controls for market volatility or cohort selection. Without these, it is unclear whether the observed performance gap is robust or an artifact of the reference construction.

    Authors: We acknowledge that the evaluation section would benefit from greater methodological transparency and robustness checks. We will revise §5 to (i) define the metrics explicitly (Kendall tau and NDCG for utility alignment; top-k accuracy and behavioral correlation for descriptive matching); (ii) report statistical significance via paired t-tests and Wilcoxon signed-rank tests on the per-model differences, with p-values and effect sizes; and (iii) add controlled analyses that stratify results by market-volatility regimes (high vs. low VIX periods) and by participant cohorts (novice vs. experienced investors). These new tables and figures will be included in the revised manuscript to demonstrate that the reported tension persists across these controls. revision: yes

Circularity Check

0 steps flagged

No circularity: benchmark construction is externally grounded

full rationale

The paper presents Conv-FinRe as a new dataset and evaluation protocol built directly from real market data and human decision trajectories. Multi-view references are defined from these external sources to separate normative utility (tied to investor risk preferences) from observed behavior, without any derivation, fitted parameters, or equations that reduce the normative baseline to the descriptive observations by construction. No self-citations, ansatzes, or uniqueness theorems are invoked as load-bearing steps in the provided text; the contribution is the benchmark itself rather than a closed mathematical chain. This is self-contained against external data sources.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 1 invented entities

The paper relies on standard assumptions about real market data and human trajectories being suitable for constructing controlled conversations; the benchmark itself is the primary new entity introduced.

axioms (1)
  • domain assumption Real market data combined with recorded human decision trajectories can be used to instantiate controlled advisory conversations that reflect investor risk preferences.
    Invoked when building the benchmark from onboarding interviews, market context, and dialogues.
invented entities (1)
  • Conv-FinRe benchmark with multi-view references no independent evidence
    purpose: To evaluate LLMs on utility-grounded versus behavior-matching financial recommendations
    Newly introduced dataset and evaluation framework described in the abstract.

pith-pipeline@v0.9.0 · 5793 in / 1396 out tokens · 45444 ms · 2026-05-21T12:13:15.343135+00:00 · methodology

discussion (0)

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Forward citations

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