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Quant LetterNo. 106

July 2025, Week 3

118 items across 9 sections, as sent to readers on 17 July 2025. Paper titles open their ML-Quant page; ↗ goes to the source.

arXiv

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

25 items

Finance9

01

Efficient Greeks Computation

A new method using tensor train learning and numerical differentiation has been proposed to speed up and maintain accuracy in calculating Greeks for multi-asset options.

30 shares3 citations todaySource ↗

02

Dynamic Portfolio Selection

A model-free approach using generative diffusion models and a policy gradient algorithm has been suggested for dynamic mean-variance portfolio selection, outperforming the Markowitz portfolio and S&P 500.

21 shares5 citations todaySource ↗

03

Crisis-Driven Market Dynamics

A framework combining Transfer Entropy and the N-dimensional Kramers-Moyal expansion has been introduced to map coupling among major indices, providing insights for adaptive hedging and macro-prudential policy.

13 shares1 citation todaySource ↗

04

Pricing and Hedging Prepayment Option

The prepayment risk in fixed-rate mortgages is modeled as an European-type interest rate receiver swaption with stochastic maturity, incorporating housing market activity as a non-tradable risk factor, enabling effective hedging of prepayment option exposure.

12 sharesSource ↗

05

Enhancing Market Risk Estimation

A system using large language models can enhance market risk estimation and trading decisions by discovering stochastic differential equations for financial time series.

11 shares4 citations todaySource ↗

06

Generalized Orlicz Premia Overview

A generalized version of Orlicz premia, based on potentially non-convex loss functions, covers various examples and maintains several relevant properties.

11 sharesSource ↗

07

Kernel Learning for Trading Strategies

A kernel-based framework for creating dynamic trading strategies outperforms traditional Markovian methods when asset dynamics or predictive signals show temporal dependencies.

10 shares2 citations todaySource ↗

08

Investment Herding Impact on Consumption

Research shows that investment herding impacts household consumption decisions, causing a crowding-out effect, providing insights for policymakers to stimulate consumption and economic growth.

10 sharesSource ↗

09

Gas Fee Competition in DEX

A study on a gas-fee competition game in decentralized exchanges reveals that arbitrageurs may opt not to trade when arbitrage opportunity and liquidity are low, but their expected profit could increase with higher arbitrage opportunity and liquidity.

10 shares5 citations todaySource ↗

Economics6

01

Advancing AI and Labor Outcomes

The research indicates that increased AI usage leads to higher unemployment and shorter work hours, especially among older, younger, male, and college-educated workers.

9 shares7 citations todaySource ↗

02

Carbon Price Shocks in Value Chain

The study introduces a new framework to analyze the impact of carbon pricing in a multi-sector economy, highlighting the significant spillover effects and the importance of sectoral interdependencies in decarbonization.

8 shares1 citation todaySource ↗

03

AIs Approach to Financial Decision-Making

The study finds that large language models (LLMs) show a risk-neutral approach to financial decision-making, sometimes produce inconsistent responses, and their overall responses are similar to those of participants from Tanzania.

7 sharesSource ↗

05

Yemen's State Collapse: Economic and Institutional Impact

Economic and Institutional Impact: The 2011 revolution and civil war in Yemen led to a significant economic and institutional decline, with a decrease in output and income, a deterioration in investment and trade openness, and a collapse in governance metrics.

7 sharesSource ↗

06

Forecasting NYC Yellow Taxi Ridership Decline

A study predicting daily passenger counts for New York City's yellow taxis from 2017-2019 shows a consistent decline in ridership, with the most accurate predictions made using a first-order autoregressive model.

5 sharesSource ↗

Miscellaneous4

02

NMIXX: Neural Embeddings for Cross-Lingual Finance

Neural Embeddings for Cross-Lingual Finance: The predictors of AI startup success are not universal but depend on the startup's goals, stage, and evaluation data, indicating a potential convenience bias in research.

8 shares1 citation todaySource ↗

03

Startup Success Predictors: A Meta-Analysis

A Meta-Analysis: The NMIXX model, fine-tuned with high-confidence triplets, excels in capturing financial semantics in low-resource languages like Korean, emphasizing the importance of tokenizer design in cross-lingual settings.

7 shares1 citation todaySource ↗

04

Understanding AI-Based Startup Evaluation

The paper investigates the estimation and asymptotic behavior of parameters in interest rate models, using Euler-Maruyama discretization for efficient simulation and estimation, providing a theoretical basis for the parameter estimation process.

6 sharesSource ↗

Crypto & Blockchain3

01

Decentralized CoW Cycle in DEX Aggregators

The article presents a mathematical model for efficiently identifying and completing trade cycles in decentralized exchange aggregators, preserving capital for liquidity providers.

17 shares2 citations todaySource ↗

03

Crypto Portfolio Risk Analysis Simulation

The paper introduces a modular simulation framework for analyzing cryptocurrency portfolio risk, incorporating various testing and modeling methods, and validated with recent cryptocurrency data.

9 sharesSource ↗

Historical Trending3

01

European Electricity Grid Model

A new model shows that adding a small amount of low-cost, flexible natural gas generation to a renewable energy grid can significantly cut system costs, with a 1% increase in natural gas generation reducing costs by 31%.

24 sharesSource ↗

02

Hidden Costs in Passive Investing

Passive investing strategies that slowly buy shares before index reconstitution can greatly cut costs and boost profits compared to buying stocks at market close on the day of reconstitution.

17 sharesSource ↗

03

Language Models in Resume Screening

Large language models used for matching resumes with job descriptions show consistent patterns, but their evaluations differ greatly from human experts, impacting their use in automated hiring systems.

11 shares2 citations todaySource ↗

RePEc

Economics working papers from RePEc's NEP field reports.

30 items

Finance6

01

Enhanced EM Portfolios with AATS

A new Automated Adaptive Trading System may help stabilize emerging markets during downturns, addressing issues caused by the rise of algorithmic trading and passive investing.

27 sharesSource ↗

04

Adaptive Market Hypothesis

The study finds that trading strategies based on the Sharpe Ratio are more profitable than the buy-and-hold strategy in global markets, supporting the Adaptive Market Hypothesis.

15 sharesSource ↗

05

Novel Window Analysis

The research introduces a new method for assessing decision-making efficiency over time, using the Whale Optimization Algorithm in foreign exchange investment strategies and utility companies on the Ho Chi Minh City Stock Exchange.

11 sharesSource ↗

06

Monitoring Poverty in Lebanon

The paper uses a new data augmentation technique to study poverty in the Middle East and North Africa, specifically Lebanon, using alternative data sources when traditional income data is scarce or unavailable.

10 sharesSource ↗

Statistical5

Machine Learning7

01

Machine Learning for M&A

A study found machine learning models to be more accurate than traditional methods in predicting Chinese corporate mergers and acquisitions.

28 sharesSource ↗

02

Tail Risk Management

New deep learning frameworks have been proposed for better risk management in finance, showing improved results in backtesting.

27 sharesSource ↗

03

Bond Market Volatility in China

A study using machine learning found that the volatility of 10-year treasury bond contracts can enhance the accuracy of stock market volatility forecasts in China.

24 sharesSource ↗

04

Lot Streaming and Scheduling

The article proposes a new algorithm and machine learning model to improve efficiency and accuracy in the Lot Streaming and Scheduling Problem with stochastic product arrival times.

16 sharesSource ↗

05

Dynamics in Chinese Financial Markets

The paper introduces a new machine learning technique for analyzing and modeling complex time series, providing an alternative to the Box-Jenkins method using COVID-19 financial data.

13 sharesSource ↗

07

Housing Market Quantile Connectedness

The research uses machine learning to study the international housing market, finding that the US market is the main source of systematic shocks and its interest rate is the most influential global factor.

10 sharesSource ↗

Deep Learning2

01

Oil Price Forecasting: ML vs. DL

ML vs. DL: Deep learning methods have been found to be more effective than traditional machine learning in predicting oil prices, particularly during crises.

31 sharesSource ↗

Historical Trending10

01

Predicting VIX Trends

The article discusses a machine learning approach to predict the CBOE Volatility Index, highlighting the importance of weekly jobless claim data.

23 sharesSource ↗

04

Social Media Climate Discussions

The study emphasizes the role of communication and a holistic approach in addressing climate change, using machine learning to analyze climate change discussions on social media.

4 sharesSource ↗

06

Young Workers in the EU

The research profiles young informal workers in the EU27, aiming to understand how Covid-19 has impacted youth employment informality.

2 sharesSource ↗

07

AI for Resource Management

The article discusses how artificial intelligence can improve resource management in cloud environments, boosting DevOps workflows' performance and efficiency.

2 sharesSource ↗

08

EGovernance and Citizen Participation

The review investigates the link between e-governance initiatives and citizen participation, emphasizing the need for interdisciplinary research to assess these initiatives' effectiveness.

2 sharesSource ↗

09

Bank Performance Determinants

The paper explores the factors influencing banks' performance, proposing new research areas in digital transformation, artificial intelligence, and the COVID-19 pandemic.

1 sharesSource ↗

10

Online Gig Work Satisfaction

The study tests the Work Need Satisfaction Scale (WNSS) among online gig workers, suggesting modifications to the scale to better reflect the specifics of online platform work.

1 sharesSource ↗

Machine learning

The general machine-learning papers the letter carried in 2023-25.

10 items

Historical Trending10

01

QLASS: Language Agent

Language Agent: QLASS is a new method for training language agents that improves performance and efficiency through step-by-step guidance, even with limited supervision.

188 shares19 citations todaySource ↗

02

Large Language Model

The study suggests the use of platinum benchmarks, which are carefully curated to reduce label errors and ambiguity, to enhance the reliability of large language models.

55 shares54 citations todaySource ↗

03

Masked Autoencoders

MAETok, a new autoencoder introduced in the study, enhances image synthesis by learning a semantically rich latent space, achieving top performance on ImageNet generation.

38 shares94 citations todaySource ↗

04

World Dynamics

NutWorld is a new framework that converts monocular videos into dynamic 3D Gaussian representations in one go, allowing for high-quality video reconstruction and real-time applications.

29 shares8 citations todaySource ↗

05

Decision Theory

The paper introduces Risk-Averse Calibration (RAC), an algorithm that optimizes prediction sets for risk-averse decision makers, enhancing safety and utility in fields like medical diagnosis and recommendation systems.

20 shares46 citations todaySource ↗

06

ToddlerBot: ML Humanoid Platform

ML Humanoid Platform: ToddlerBot is an affordable, open-source robot designed for research in robotics and AI, allowing for easy collection of simulation and real-world data.

19 shares21 citations todaySource ↗

07

NNetNav: Browser Agent Learning

Browser Agent Learning: NNetNav is a technique for unsupervised interaction with websites, creating synthetic demonstrations to train browser agents and making search easier through language instruction hierarchy.

15 shares57 citations todaySource ↗

08

LoRAX: Cross-Model Adaptation

Cross-Model Adaptation: LoRA-X is a new adapter that allows for the transfer of LoRA parameters between models without the need for original or synthetic training data.

13 shares11 citations todaySource ↗

09

Particle Trajectory Learning

PoLAr-MAE uses masked point modeling on unlabeled LArTPC images, using domain-specific volumetric tokenization and energy prediction for impressive data efficiency.

13 shares9 citations todaySource ↗

10

Learning RoPEs: Position Encodings

Position Encodings: STRING is a position encoding that extends Rotary Position Encodings, offering exact translation invariance and a low computational footprint, beneficial in robotics.

13 shares20 citations todaySource ↗

Papers with code

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

9 items

Trending4

01

GumTreeDiff

The first article explores the idea of software evolution via an edit script applied to a source code file.

1,139 shares

02

cmriat L0

The second article presents LZero (L0), a training pipeline designed for general-purpose agents.

324 shares

03

apple Embedding Atlas

The third article discusses the application of embedding projections in visualizing large datasets and models.

281 shares

04

yongliu20

The fourth article targets achieving universal segmentation at any semantic level.

276 shares

Rising5

01

Compressing Language Models

The research indicates that data between separator tokens can be effectively compressed into the tokens themselves without significant loss of information.

274 shares

02

Energy Transformers for Learning

Enhanced Bridge Transformers (EBTs) perform better than existing models in most tasks, suggesting superior generalization, even if pretraining performance is similar or worse.

269 shares

03

Robust Stereo Matching with SMoEStereo

SMoEStereo is a new framework that adapts VFMs for stereo matching, combining LowRank Adaptation (LoRA) and MixtureofExperts (MoE) modules.

102 shares

04

Evaluating Conversational Agents

Current benchmarks for conversational AI agents only create scenarios where the AI interacts, while the user only provides information passively.

90 shares

05

TCSinger 2: Zeroshot Singing Voice Synthesis

Zeroshot Singing Voice Synthesis: TCSinger 2 is a new multitask, multilingual, zero-shot SVS model with style transfer and control, designed to address existing challenges.

77 shares

GitHub

Repositories the letter featured.

10 items

Finance5

01

Trading Platform

The article explores a platform that aids in the research and implementation of algorithmic trading strategies.

22 shares

02

Historical Data Package

The article details a Python PYPI package that eases the extraction of historical cryptocurrency data from Binance.

133 shares

03

Matrix Shrinkage Estimation

The article presents a package specifically created for the shrinkage estimation of covariance matrices.

29 shares

04

Engineering Cookbook

The article provides an in-depth guide on the different facets of data engineering.

14,386 shares

05

Time Series Forecasting

The article introduces a new feature learning algorithm and automated machine learning for efficient, high-quality predictions on relational and multivariate timeseries data.

167 shares

Trending5

01

Autumn: Pricing Billing Platform

Pricing Billing Platform: Autumn is a platform that provides open-source tools for pricing and billing.

1,251 shares

02

Finviz API

Finviz offers an unofficial API for creating financial visualizations.

1,128 shares

03

AI Stock Tool

An AI tool is available for analyzing stocks from various markets, with plans to include funds and ETFs, and offers features like sentiment and K-line analysis.

1,898 shares

04

Custom Vision Recipes

There are guidelines available for optimizing and customizing advanced vision models.

1,520 shares

05

Causal Discovery Python

Causal Discovery in Python is a feature that allows for conditional independence tests and score functions.

1,404 shares

News

Industry news: funds, hiring, markets and regulation.

18 items

Quantitative9

01

AI for Quant Signal Discovery

Man Numeric, the quantitative arm of Man Group, has begun using an AI system that can independently create and backtest trading strategies, automating the quantitative research process at the world's largest listed hedge fund.

8 shares

02

Quant Insight Series A Investment

Quant Insight has received Series A funding from 7RIDGEs Ecosystem Impact Fund to accelerate the global expansion of its Macro Factor Risk Models and Analytics Platform for asset managers.

8 shares

03

Hunterbrook Hedge Fund 100m Valuation

Hybrid hedge fund and investigative media company, Hunterbrook Global, has achieved a $100m valuation following a new funding round and intends to branch out into litigation finance.

6 shares

04

Brevan Howard Closes Helske's Volatility Fund

Brevan Howard has shut down the Brevan Howard Global Volatility Fund managed by trader Ville Helske, as part of a plan to retain investor capital for extended periods.

6 shares

05

Hedge Fund PM Starts Research Firm

Gregory J Blotnick, a former hedge fund manager, has started Valiant Research LLC, a market intelligence firm specializing in the retail sector.

5 shares

06

Hedge Funds Rise

Despite growth in June, hedge funds experienced a slowdown in investor inflows in July, as per SS&C GlobeOp data.

5 shares

07

EEX Group Trading Volume Up

EEX Group recorded unprecedented trading volume growth in its major asset classes during the first half of 2025.

5 shares

08

Understanding Quantitative Analysts

The article provides insights into the field of quantitative finance and offers guidance on securing a job in this sector.

5 shares

09

EEX EU ETS2 Futures Begin

The European Energy Exchange and IncubEx have introduced futures contracts linked to the EU Emissions Trading System 2, enabling companies to hedge their exposure.

4 shares

Miscellaneous9

01

Hedge Funds vs Ukrainian Railways Bond

Hedge fund creditors, such as VR Capital, are demanding tariff reforms before agreeing to a second restructuring of Ukrainian Railways' international bonds.

4 shares

02

Capriole CEO Optimistic on Bitcoin

Capriole Investment's CEO, Charles Edwards, predicts that the recent surge of bitcoin past 122000 is just the start of its rally.

4 shares

03

Artemis Longshort Fund Launch

Artemis has launched the Artemis Atlas Fund, its first venture into the market neutral long/short equity space, managed by ex-hedge fund equity analyst Ambrose Faulks.

4 shares

04

Shortsellers Target Giants

Hedge funds increased short-selling activity in June, particularly in consumer lifestyle and technology stocks, as per Hazeltree’s Short-side Crowdedness Report.

3 shares

06

Seligman Increases Tesla

Seligman Tech Spectrum Fund keeps Tesla as its biggest short position, says Institutional Investor.

1 shares

08

Bitwise Expands European Crypto Team

Bitwise recruits Max Shannon as a Senior Research Associate for its European team, highlighting its commitment to crypto asset research and investor education.

0 shares

Podcasts

Episodes on markets, quant methods and economics.

10 items

Quantitative5

01

Goldman Sachs Family Office Expert

Sara NaisonTarajano of Goldman Sachs talks about her career, the unique strategy for family office investing, and the balance between risk management and growth in preserving generational wealth.

13 shares

02

Predicting the Unpredictable

The article explores the challenges in market prediction, the influence of behavioral biases on investment choices, and the role of risk parity and diversification in mitigating these tendencies.

13 shares

03

Data Bento and Market Data

Christina Qi, CEO of Data Bento, highlights the company's dedication to providing structured and cleaned data, and its commitment to fostering innovation in the finance and investment sector.

9 shares

04

Global FX: Bearish USD

Bearish USD: A JPMorgan Chase podcast discusses the potential medium-term decline of the dollar, recent CNY fixes, tariff and UK CHF developments.

5 shares

05

Global Rates: European Summer

European Summer: A JPMorgan Chase podcast explores summer trends for European rate markets, focusing on seasonality in intra-EMU spreads, Eur swap spread views, SSA thoughts, and UK gilt yields.

5 shares

Related5

01

Copper Tariffs Market Impact

The Trump administration is set to impose a 50% tariff on US copper imports from August 1, which could affect copper prices and market dynamics.

4 shares

02

Billionaire Myths

The book Stinking Rich: The Four Myths of the Good Billionaire argues that billionaires exacerbate economic inequality and plutocracy, debunking the notion of their positive impact.

3 shares

03

Octaura's Brian Bejile

Octaura CEO, Brian Bejile, in a podcast, emphasizes the need for more data and analytics in the modernization of credit markets.

3 shares

04

Market Volatility & Tariffs

Traders are facing a challenging environment due to rising rates, inflation worries, and trade pressures, with potential market volatility ahead.

2 shares

05

Powering AI Era

The surge in AI is increasing power demand, with Goldman Sachs highlighting the potential difficulties in meeting this demand and its implications for AI's future.

1 shares

X / Twitter

Posts from quant researchers on X.

4 items

Quantitative3

01

Single vs. Multiple Strategies

The author favors a single strategy with a Sharpe ratio of 2, rather than a combined strategy of five uncorrelated strategies with a Sharpe ratio of 2.5.

3 shares

02

Quantifying Overfitting

The updated paper by Jacquier et al. advises against overfitting with numerous weak signals, suggesting the use of a few strong predictors, extensive backtesting, and straightforward models for improved out-of-sample replication.

0 shares

03

Stefan Nagel's Presentation

Stefan Nagel's recent NBER presentation and the following discussion by Bryan Kelly are suggested for those interested in the subject.

0 shares

Miscellaneous1

Reddit

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

2 items

Quantitative1

Rising1

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