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Quant LetterNo. 13

August 2023, Week 4

81 items across 8 sections, as sent to readers on 24 August 2023. Paper titles open their ML-Quant page; ↗ goes to the source.

arXiv

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

17 items

Finance8

03

Valuing Vulnerable Derivative Contracts

A model for valuing a vulnerable derivative considers bilateral cash flows, funding, credit, and wrong-way risks, with findings indicating more sensitivity to funding factors than credit ones.

5 sharesSource ↗

04

Analyzing Collective Trading Events on Social Media

A study finds a strong correlation between Twitter activity and stock volatility, but a weak connection between tweet sentiment and stock performance, suggesting Reddit has a more significant impact on these events.

5 shares2 citations todaySource ↗

05

Asset Class Network Momentum

The article discusses network momentum, a trading signal from asset momentum spillover, and its use in a multi-asset investment strategy that yielded a 22% annual return from 2000 to 2022.

4 shares6 citations todaySource ↗

06

Delayed Hedging

The research focuses on the problem of maximizing exponential utility within the context of semistatic hedging.

3 shares1 citation todaySource ↗

Economics4

01

Hidden Dissents in FOMC Meetings

A deep learning model study reveals that disagreement among FOMC members is primarily driven by current or forecasted macroeconomic data, and intensifies with more aggressive monetary policy action.

5 shares1 citation todaySource ↗

03

Data-Driven Guide to WSB

Research shows that activity on the WallStreetBets forum directly impacts the returns of several assets, including 'meme stocks'.

5 sharesSource ↗

04

Happiness Search & Stock Returns

Google Trends' search volume for 'happiness' can predict future stock returns, particularly for large and value firms, indicating it mirrors a company's societal impact.

5 shares1 citation todaySource ↗

Miscellaneous3

Historical Trending2

02

Deep RL for High Frequency Trading

A new Deep Reinforcement Learning framework has been developed for high frequency stock trading, showing potential for profitable long-term strategies.

194 shares51 citations todaySource ↗

SSRN

Working papers in finance and economics from SSRN.

20 items

Quantitative11

02

Price Limit Expansion's Impact on Stock Volatility

The research suggests that expanding price limits can either increase or decrease stock volatility, primarily driven by the magnet effect and inherent volatility levels, with the correction effect having a lesser impact.

2 sharesSource ↗

07

High-Dimensional Datasets: Tensor PCA

Tensor PCA: New techniques for analyzing high-dimensional tensor datasets, including a tensor principal component analysis (TPCA) estimation algorithm and a unique test for the number of factors in a tensor factor model, have been developed.

2 sharesSource ↗

08

Bridging the Gap in Legal Document Analysis

The article promotes the application of legal theory in machine learning to extract information from legal texts, with a focus on the interest theory of rights and the Hohfeldian taxonomy of legal relations.

2 sharesSource ↗

09

Bayesian Approach for Credit Risk Parameters

The article introduces a Bayesian model to estimate default probabilities in low-default portfolios, using credit derivatives market data and observed default data for better risk differentiation.

98 sharesSource ↗

11

GARCH Model Selection Bias

Information criteria can impact the robustness of the News Impact Curve in financial time series due to their restrictive or slack nature when dealing with asymmetric volatility.

2 sharesSource ↗

Financial9

02

Nonlinear Forecasting of Volatility

A new framework for forecasting implied volatility in European put and call options is introduced, using the functional Neural Tangent Kernel estimator to handle the nonlinear and asymmetric dependencies inherent to implied volatility.

2 sharesSource ↗

05

Dollar Shorting and Stock Market Surge

The research shows that global market shocks significantly affect the hedging behavior of institutional investors, leading to the sale of US dollar forwards and exchange rate appreciation.

125 sharesSource ↗

06

Panel Data Nowcasting: P/E Ratios

P/E Ratios: The paper highlights the superior performance of structured machine learning regressions for nowcasting with panel data of different frequencies, especially in predicting corporate earnings.

2 sharesSource ↗

07

Price Discovery in Derivatives

The study proposes a theory of price discovery across derivative markets, detailing informed demand, price impact, and information efficiency of prices, and suggesting strategies for trading at any given time.

2 sharesSource ↗

RePEc

Economics working papers from RePEc's NEP field reports.

16 items

Finance6

01

Tail Factor Modeling for Financial Data

The Factor-HGH model is proposed for the joint distribution of financial factors and asset returns, offering advantages in data interpretation and applicability in large dimensions due to a fast estimation algorithm.

14 sharesSource ↗

04

Trends in Volatility

A replication of a 2001 study found that idiosyncratic volatility increased from 1962 to 1997, but decreased in other periods, suggesting the original finding was specific to its sample.

16 sharesSource ↗

05

Volatility & Expected Returns: Past & Present

Past & Present: The research confirms previous findings that stock returns from 1963 to 2000 are influenced by aggregate-volatility risk and idiosyncratic volatility, and recent asset-pricing models do not consistently account for this.

22 sharesSource ↗

Historical Trending10

02

Machine Learning for Housing Prices

Housing price trends can be accurately modeled using machine learning algorithms, considering time lag effects, physical conditions, and socio-economic factors.

21 sharesSource ↗

06

Credit Cycles & Returns

Research indicates that high leverage credit booms often lead to lower returns on risky equities, while fixed income provides slightly higher returns as a safer option.

17 sharesSource ↗

07

Uncertainty Indices & Macroeconomics

The study explores the relationship between major uncertainty indices and macroeconomic variables in the U.S. and Japan, showing varied responses to different events and their effects on business cycles.

17 sharesSource ↗

08

Scaling SMEs Credit Scoring

A new method using Gradient Boosting Decision Trees and SHapley Additive exPlanation values aims to enhance credit scoring for Small and Medium Size Enterprises, providing high predictability and explainability.

15 sharesSource ↗

09

Machine Learning vs. Dictionary for Sentiment

Machine-learning methods, particularly the random-forest-regression-tree method, significantly improve the capture of disclosure sentiment at 10-K filing and conference-call dates compared to dictionary-based measures.

13 sharesSource ↗

Papers with code

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

2 items

Trending2

01

SpecInfer: Accelerating Language Model Serving

Accelerating Language Model Serving: Specinfer uses several small language models to predict the outputs of Large Language Models, arranging predictions in a token tree format.

930 shares

02

EasyEdit: Easy-to-use Knowledge Editing Framework

Easy-to-use Knowledge Editing Framework: Large Language Models often face issues with knowledge cutoff or fallacies, resulting in ignorance of unseen events or production of text with incorrect information due to outdated or noisy data.

387 shares

GitHub

Repositories the letter featured.

10 items

Finance5

01

AutoGluon: AutoML for Data Types

AutoML for Data Types: AutoML for processing various types of data including image, text, time series, and tabular data.

6,120 shares

04

Offline ChatGPT: Llama-Powered Chatbot

Llama-Powered Chatbot: Private chatbot that works offline, powered by Llama 2, ensuring data privacy as no information leaves the device.

3,959 shares

Trending5

01

Chapyter Interpreter

Tool that uses ChatGPT to interpret code in Jupyter notebooks.

546 shares

05

Python DMD

Python-based method for decomposing dynamic modes.

638 shares

Podcasts

Episodes on markets, quant methods and economics.

4 items

Quantitative4

01

ML Training: Cuttlefish Model Tuning

Cuttlefish Model Tuning: Hongyi Wang, a Senior Researcher at Carnegie Mellon University, shares his research on improving the training of machine learning models, introducing the Cuttlefish model.

13 shares

02

Alternative Data with Jason DeRise

Jason DeRise, a pioneer employee of UBS's Evidence Lab, shares his insights on the platform's growth and the future of alternative data.

10 shares

X / Twitter

Posts from quant researchers on X.

5 items

Quantitative5

01

Machine Learning Survey

The survey paper explores different aspects of machine learning and forecasting such as nowcasting, textual data panel, tensor data, high-dimensional Granger causality tests, and time series cross-validation.

7 shares

02

Treasury Market Sentiment Index as Predictor

A study shows that the Sentix Survey's Treasury market investor sentiment index can predict US bond returns, likely because it can forecast near-term macro variables.

2 shares

03

Investor Overconfidence Determinants

The article analyzes how overconfidence can negatively affect investment outcomes, based on the UBS-Gallup Investor Optimism Survey.

2 shares

Reddit

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

7 items

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