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Quant LetterNo. 122

December 2025, Week 2

86 items across 8 sections, as sent to readers on 14 December 2025. Paper titles open their ML-Quant page; ↗ goes to the source.

arXiv

Quantitative-finance and ML-for-finance preprints from arXiv.

18 items

Finance6

01

RL for Financial Decisions

Reinforcement learning improves financial decision-making by simplifying complex investment problems, emphasizing clear explanations and strong reliability over complex algorithms.

2 shares1 citation todaySource ↗

02

Unified Risk-Neutral Pricing

The paper presents a new approach to pricing zero-coupon bonds that aligns them with equity options for more accurate interest rate modeling.

1 sharesSource ↗

05

DeepSVM: Physics-Informed Volatility

Physics-Informed Volatility: DeepSVM is a machine learning model that accurately calibrates stochastic volatility without labels, but needs better regularization for derivatives.

1 sharesSource ↗

06

DeepSVM: No-Labeled Pricing Model

No-Labeled Pricing Model: The article shows how single-qubit quantum learning can predict volatility time series, effectively capturing asymmetric volatility patterns.

1 sharesSource ↗

Economics6

02

Capability Accumulation and Convergence

A dynamic model describes how economic complexity shifts from unconditional to conditional convergence as capability intensity increases, offering clear solutions for diversification.

0 shares1 citation todaySource ↗

03

Distributional Effects of Paid Queues

A fast-track queue system benefits high-income individuals while disadvantaging low-income ones, causing middle-income individuals to prefer the free queue despite potential payment for faster access.

0 sharesSource ↗

04

Automated Corruption Index

An automated corruption index using Brazilian municipal audit reports is efficient and more reliable than manual methods in detecting corruption.

0 shares1 citation todaySource ↗

05

AI in Medical Decisions

AIgenerated explanations can improve decision-making when algorithms are right, but can mislead when they're wrong, highlighting a paradox in AI transparency for doctors.

0 shares1 citation todaySource ↗

06

Case Management in MDL

Lone Pine orders and bellwether trials in multidistrict litigation enhance case resolution by offering valuable evidence and insights, mitigating concerns about settlement pressures.

0 sharesSource ↗

Miscellaneous4

01

Workflow is Key

The DeepNews Framework is designed to improve long-form financial writing by enhancing coherence and minimizing inaccuracies using advanced retrieval and planning techniques.

0 sharesSource ↗

02

Understanding CS Interest

Research indicates that age affects students' interest in computer science more than gender, suggesting educational approaches should consider developmental changes to boost engagement.

0 shares1 citation todaySource ↗

03

LLMs Excel in CFA

An evaluation of reasoning models on CFA mock exams shows that models like Gemini 3.0 Pro and GPT-5 perform well, achieving high pass rates in professional testing.

0 shares2 citations todaySource ↗

04

AI Agent Usage Patterns

A study of AI agent use with the Comet browser reveals that personal productivity and learning are the main reasons users interact with these tools.

0 shares14 citations todaySource ↗

Historical Trending2

01

Investment and Insurance Strategies

An economic agent makes choices to maximize utility by adjusting consumption, investing in safe and risky assets, and insuring against losses on a depreciating good, using a strategy from the Hamilton-Jacobi-Bellman equation.

1 sharesSource ↗

02

Impact of Bank Mergers in Japan

This study analyzes how the market responds to major bank mergers in Japan, finding significant positive abnormal returns and lasting effects, indicating that banks benefit from synergies after merging.

1 sharesSource ↗

RePEc

Economics working papers from RePEc's NEP field reports.

30 items

Finance9

05

Macroeconomic Expectations and Risk

The study finds that differences in macroeconomic expectations among investors impact financial risk premiums and stock returns based on consumption and productivity levels.

5 sharesSource ↗

06

Target Benefit Pension Strategies

This paper discusses effective management strategies for target benefit pension plans, focusing on balancing risk and return through diverse asset allocation for stability.

5 sharesSource ↗

07

Evaluating Trading Strategies

A new method in Window Data Envelopment Analysis connects decision-making units to enhance efficiency assessments, applied to foreign exchange and utility investments.

5 sharesSource ↗

08

Early Exercise and Options Pricing

The research shows that American put options often have less negative raw returns but worse delta-hedged returns than European puts due to early exercise considerations, affecting option profitability.

4 sharesSource ↗

09

LongTerm Investment Returns

The study highlights the significance of sustainable return in long-term investments, differentiating return sequence risk from overall return risk, and stressing the importance of cash flow reinvestment.

4 sharesSource ↗

Statistical3

Machine Learning5

01

Multiscale Dynamics in Chinese Markets

A new machine learning technique offers better flexibility and accuracy for modeling complex time series, outperforming traditional methods in analyzing financial data during COVID-19.

6 sharesSource ↗

02

Machine Learning for Tail Risk

Two advanced probabilistic deep learning frameworks are developed to improve Value at Risk and Expected Shortfall estimates, aiding financial institutions in better capital allocation.

6 sharesSource ↗

Deep Learning3

Historical Trending10

08

Determinants of Bank Performance

This literature review on bank performance determinants stresses the need for more research, especially due to influences like COVID-19 and digital changes in banking.

1 sharesSource ↗

Papers with code

Papers that shipped their code, from the Papers with Code feed (2023-25).

4 items

Trending2

01

DeepCode: Doc-to-Code Synthesis

Doc-to-Code Synthesis: DeepCode is an autonomous framework that improves the process of turning documents into code, surpassing human experts with its advanced optimization techniques.

11,739 shares

02

GRAPE: Positional Encoding Framework

Positional Encoding Framework: GRAPE is a new framework for positional encoding that combines rotations and logit biases to enhance the performance of existing methods like RoPE and ALiBi.

39 shares

Rising2

01

Textto-3D Reinforcement Learning

ARDR1 is a groundbreaking model that uses reinforcement learning to generate 3D content from text, featuring new reward systems and optimization methods.

38 shares

02

Procedural Terrain Diffusion

Terrain Diffusion leverages diffusion models and InfiniteDiffusion to produce realistic, infinitely expandable environments that can be accessed quickly.

22 shares

GitHub

Repositories the letter featured.

10 items

Finance5

01

Automated Trading with Real-Time Data

A library that automates trading ideas with DTN IQFeed and Interactive Brokers, also supporting Alpaca, Phemex, and Telegram alerts.

617 shares

Trending5

01

KaijuEngine: Game Engine in Go

Game Engine in Go: A game engine built with Go and Vulkan allows for flexible 2D and 3D game development, complete with an integrated editor.

3,482 shares

02

Claude Toolkit: AI Workflow

AI Workflow: Claude Code offers optimized commands and workflows to boost teamwork and adaptability in coding projects.

11 shares

03

BERTTopic: Topic Modeling

Topic Modeling: BERT and cTFIDF techniques are used to create clearer topics for better understanding and interpretation of information.

7,237 shares

04

Hacker News Capsule: LLM Analysis

LLM Analysis: A study examines Hacker News discussions from a decade ago, utilizing large language models to analyze trends and insights.

232 shares

05

NubsKrawlrus: Kafka in Rust

Kafka in Rust: A Rust-based solution provides a high-performance alternative to Kafka, aimed at improving data processing efficiency.

1,114 shares

Podcasts

Episodes on markets, quant methods and economics.

10 items

Quantitative5

01

Risk Management Insights by Todd Rapp

Todd Rapp discusses how his early experiences in equity options at Goldman Sachs shape his current strategies for risk management and portfolio construction in a changing market.

10 shares

02

BlackRock's Post-COVID Portfolio

Jeff Rosenberg from BlackRock explores the effects of recent inflation trends on portfolio strategies, focusing on changes in bond-equity correlations and the increasing significance of liquid alternatives.

9 shares

03

Navigating Market Uncertainty

Alan and Mark delve into the challenges of making investment decisions during uncertainty, particularly in relation to the Federal Reserve's actions and the shifting landscape of systematic investing.

8 shares

04

Political Risk in Asset Pricing

Mark Rosenberg highlights the importance of quantifying political risk as a market variable, stressing the role of governance and social stability in assessing asset pricing.

7 shares

05

Ken Tropin: Global Macro Pioneer

Global Macro Pioneer: Ken Tropin reflects on his long career in the macro investment field, emphasizing his leadership in alternative investment strategies at Graham Capital Management.

6 shares

Related5

01

Rethinking Risk: Rick Rieder

Rick Rieder: Rick Rieder talks about market trends, cash flow, interest rate predictions, and investment strategies in today’s economy.

6 shares

02

Investment Outlook

The article examines the future of global markets, focusing on AI investments, government debt, and differing forecasts for 2026.

5 shares

03

Internet Growth in Emerging Markets

Brendan Ahern outlines how technology and new business models are reshaping emerging markets and provides investment advice.

5 shares

04

Navigating Yields: TRSY

TRSY: Aram Babikian explains the benefits of using TRSY for cash management, highlighting its liquidity and tax advantages over traditional cash options.

4 shares

05

Jacob Shapiro Podcast: Geopolitics & Markets

Geopolitics & Markets: The Jacob Shapiro Podcast discusses global politics and economics, covering sectors like markets, cryptocurrency, and commodities in a biweekly format.

3 shares

Blogs

Posts from quant and economics blogs and newsletters.

10 items

Quantitative5

01

VRP Performance Update

The VRP beta benchmark for options has delivered a 20% annual return over eight months, even with market ups and downs.

7 shares

02

VRP Benchmark Results

The article summarizes stock market trends for the week, focusing on country ETFs and fixed income investments.

7 shares

03

VRP Insights

Research shows that high childcare costs influence families' decisions about planning and having children.

7 shares

04

Latest VRP Trading

Analyzing daily profit and loss charts shows how tariffs and foreign investor exits affect market performance.

7 shares

Related5

01

Volatility as Beta

The VRP benchmark for option trading is performing well, aiming for a 20% annual growth rate after eight months, even during market fluctuations.

7 shares

02

VRP Strategy Update

This week's market roundup explores diverse investment areas like country ETFs, fixed income, currencies, and commodities.

7 shares

03

VRP's 20% CAGR

A research paper highlights how the costs of childcare affect parents' decisions about having kids.

7 shares

04

Short Volatility Success

The VRP benchmark remains effective in helping traders with options, despite some recent market ups and downs.

7 shares

05

Childcare Costs & Fertility

Recent updates show that shorting volatility has been a profitable strategy in today's trading conditions.

7 shares

X / Twitter

Posts from quant researchers on X.

2 items

Quantitative1

01

FX Anomalies and Currency Risk Premia Resource

CurrencyFactors.com is a new website that provides detailed historical data on 11 currency factors, catering to those interested in foreign exchange anomalies and currency risk.

2 shares

Miscellaneous1

01

Quant Crises

The article explains the market crises of 2025, caused by quantitative trading strategies. It outlines how these strategies led to instability and the effects on the financial markets.

1 shares

Reddit

Threads from r/quant, r/algotrading and friends.

2 items

Quantitative1

Rising1

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