Klaus Grobys

Apulaisprofessori, rahoitus (tenure track)

Docent (Econ.)

Laskentatoimen ja rahoituksen yksikkö, Rahoitus

etunimi.sukunimi@uwasa.fi

029 449 8524

Wolffintie 32, 65200 Vaasa
Tervahovi D320

Biography in brief:

Klaus Grobys holds a PhD in Finance (University of Vaasa), and has the position Associate Professor of Finance at the University of Vaasa. Moreover, he accomplished the title of Docent with specialization in Asset Pricing granted from the University of Jyväskyla. At the University of Vaasa, Grobys is the first senior researcher who supervises a doctoral student in regards to the co-tutelle agreement in collaboration with the University of Turin.

Grobys is appointed from the Christian-Albrechts University (CAU) of Kiel, Germany, for the position Visiting Professor of Financial Economics for the academic summer term 2025. In his position as Visiting Professor at the CAU, Grobys is fully responsible for research and teaching.

He has several years of professional working experience in the finance industry. In his position as Risk Analyst at Klarna AB, he carried out various projects related to credit risk control.

His PhD thesis is graded as "Passed with Distinction". In this regard, Professor Dr. James W. Kolari (Texas A&M University, USA) ranked Grobys' PhD thesis among the top-10% of all doctoral theses in finance that he evaluated as a committee member during his more than 35 years of career in academia.

Grobys' research is published in prestigious finance journals. About 75% of his scientific research output is published in A-journals. His research received enormous media attention and was, among others, covered in The New York Times, Forbes, Alphaarchitect, and Cointelegraph.

Academic Awards:

Honourable Mention for an Innovative Initiative in Teaching (University of Vaasa, January 2022)

Honourable Mention in Science Communication (University of Vaasa, February 2021)

Research Interests:

Fintech, Cryptocurrency, Asset Pricing

Current Positions:

Associate Professor of Finance (tenure-track), School of Accounting & Finance (University of Vaasa)

Associate Professor of Finance (tenure-track), Innovation & Entrepeneurship (InnoLab) (University of Vaasa)

Docent (Econ.) in Asset Pricing, University of Jyväskyla

General Guide for Students:

"EARNEST - A GUIDE FOR MANAGING YOUR STUDIES AT UNIVERSITY FROM DAY 1 TO BECOME NO. 1 IN THE JOB INTERVIEW"

Downloadable (for free) at: https://klausgrobys.wixsite.com/earnest

Teachings:

Theoretical Perspectives on Open and User Innovation (Bachelor-level course at InnoLab, University of Vaasa)

Digital Finance and Blockchain-based Payment Solutions (Master-level course at the University of Vaasa)

Empirical Analysis in Asset Pricing (Master-level course at the University of Jyväskyla)

Quantitative Financial Data Analysis in Matlab (Master-level course at the University of Vaasa)

Research in Financial Markets (Master-level course at the University of Vaasa)

Data Analytics in Applied Research (Doctoral-level course at the University of Vaasa)

Finance Channel on Youtube:

https://www.youtube.com/channel/UCX6MEXedXC84ELYaAXUOm1w/featured

Books

"Rationality: The Antidote To Being Fooled By The Industry".

(ISBN-13: 9789528066743)

About this book: Inspired by Nassim N. Taleb's works The Black Swan, Antifragile, and Skin in the Game, Klaus Grobys explores how rationality and irrationality are manifested in human behavior across various domains of human life. The stories discussed in this book are based on real-life observations. This work deals with political incorrectness, the presence of concentration in virtually all domains of human life, the carelessness of industries manifested in profit-maximizing at the expense of simple folks, and various other issues that many authors typically avoid. The objective of this book is first to acquaint the reader with a new perspective concerning the concept of rationality and second to equip the reader to identify traps set up by profit-maximizing industries and self-serving lobbies.

(A free sample of the book is available here.)

Scientific Research

Refereed Publications:

Cryptocurrency momentum has (not) its moments (with D. Sandretto, A. J. H. Shahzad, J. W. Kolari, J. Äijö), Financial Markets and Portfolio Management, 2024, forthcoming.

A common component of Fama and French factor variances (with M. Fathi and J. Äijö), North American Journal of Economics and Finance, 2025, (75)A, 102292.

A universal exponent governing foreign exchange rate risks (single-authored), International Review of Financial Analysis, 2024 (95), 103422.

Science or Scientism? On the Momentum Illusion (single-authored), Annals of Finance, 2024, (20), 479-519.

Combining Low-Volatility and Momentum: Recent Evidence from the Nordic Equities (with V. Fatmy and T. Rajalin), Applied Economics, 2024, forthcoming.

On co-dependent power-law behavior across cryptocurrencies (single-authored), Finance Research Letters, 2024 (63), 105295.

No reward -- no effort: Will Bitcoin collapse near to the year 2140? (single-authored), Finance Research Letters, 2024 (63), 105294.

On the Realized Risk of Foreign Exchange Rates: A Fractal Perspective (with M. Fathi and J.W. Kolari), Journal of Risk and Financial Management, 2024 (17), 79.

A finite-time singularity in the dynamics of the US equity market: Will the US equity market eventually collapse? (single-authored), International Review of Financial Analysis, 2023 (89), 102787.

A Fractal and Comparative View of the Memory of Bitcoin and S&P 500 Returns (single-authored), Research in International Business and Finance, 2023, (66), 102021.

A Multifractal Model of Asset (In)Variances (single-authored), Journal of International Financial Markets, Institutions and Money, 2023 (85), 101767.

Correlation versus co-fractality: evidence from foreign exchange rate variances (single-authored), International Review of Financial Analysis, 2023 (86), 102531.

Fear sells: On the sentiment deceptions and fundraising success of Initial Coin Offerings (with N. Sapkota), Journal of International Financial Markets, Institutions and Money, 2023 (83), 101716.

Better Not Forget: On the Memory of S&P 500 Survivor Stock Companies (with Y. Han and J. Kolari), Journal of Risk and Financial Management, 2023 (16), 126.

A Fractal View on Losses Attributable to Scams in the Market for Initial Coin Offerings (with T. King and N. Sapkota), Journal of Risk and Financial Management, 2022 (15), 579.

What's the expected loss when Bitcoin is under cyberattack? A fractal process analysis (with J. Kolari, N. Sapkota and J. Dufitinema), Journal of International Financial Markets, Institutions and Money, 2022 (77), 101534

On Survivor Stocks in the S&P 500 Stock Index (single-authored), Journal of Risk and Financial Management, 2022 (15), 95.

Man versus Machine: Artificial Intelligence and Hedge Funds Performance (with J. Niang and J. Kolari), Applied Economics, 2022 (54), 4632-4646.

When Tether says "JUMP!" Bitcoin asks "How low"? (with T. Duc Huynh), Finance Research Letters, 2022 (47)A, 102644.

Choosing Factors: The International Evidence (with J. Kolari), Applied Economics, 2022 (54), 633-647.

Factor Momentum, Investor Sentiment, and Option-Implied Volatility-Scaling (with J. Rutanen and J.W. Kolari), Journal of Asset Management, 2022 (23), 138-155.

What do we know about the second moment of financial markets? (single-authored) International Review of Financial Analysis, 2021 (78), 101891.

On the Stability of Stablecoins (with J. Kolari, J.-P. Junttila and N. Sapkota), Journal of Empirical Finance, 2021 (64), 207-223.

Asset Market Equilibria in Cryptocurrency Markets: Evidence from a Study of Privacy and Non-Privacy Coins (with N. Sapkota), Journal of International Financial Markets, Institutions and Money, 2021 (74), 101402.

Speculation and Lottery-Like Demand in Cryptocurrency Markets (with J.-P. Junttila), Journal of International Financial Markets, Institutions and Money, 2021 (71), 101289.

When the blockchain does not block: On hackings and uncertainty in the cryptocurrency market (single-authored), Quantitative Finance, 2021, (21), 1267-1279.

Blockchain Consensus Protocols, Energy Consumption, and Cryptocurrency Prices (with N. Sapkota), Journal of Energy Markets, 2020 (13), 117-139.

Is Smart Beta Investing Profitable? Evidence from the Nordic Stock Market (with V.-P. Silvasti and J. Äijö), Applied Economics, 2020 (53), 1826-1839.

When Bitcoin has the flu: On Bitcoin's performance to hedge equity risk in the early wake of the COVID-19 outbreak (single-authored), Applied Economics Letters, 2020 (28), 860-865.

Predicting Cryptocurrency Defaults (with N. Sapkota), Applied Economics, 2020 (52), 5060-5076.

Another Look at Value and Momentum: Volatility Spillovers (with S. Vähämaa), Review of Quantitative Finance and Accounting 2020 (55), 1459-1479.

Profitability of Technical Trading Rules among Cryptocurrencies with Privacy Function (with S. Ahmed and N. Sapkota), Finance Research Letters, 2020 (35), 101495.

Technical Trading Rules in the Cryptocurrency Market (with S. Ahmed and N. Sapkota), Finance Research Letters, 2020 (32), 101396.

On Industry Momentum Strategies (with J.W. Kolari), Journal of Financial Research, 2020 (43), 95-119.

Cryptocurrencies and Momentum (with N. Sapkota), Economics Letters, 2019 (180), 6-10.

Combining value and momentum: Evidence from the Nordic equity market (with T. Huhta-Halkola), Applied Economics, 2019 (51), 2872-2884.

Risk-managed 52-week high industry momentum, momentum crashes, and hedging macroeconomic risk (single-authored), Quantitative Finance, 2018 (18), 1233-1247.

Return Dispersion Risk in FX and Global Equity Markets: Does It Explain Currency Momentum? (with J.-P. Heinonen and J. Kolari), International Review of Financial Analysis, 2018 (56), 264-280.

Risk-managed industry momentum and momentum crashes (with J. Ruotsalainen and J. Äijö), Quantitative Finance, 2018 (18), 1715-1733.

Option-implied volatility spillover indices for FX risk factors (with J.-P. Heinonen), Economics Letters, 2017 (157), 83-87.

Are momentum crashes pervasive regardless of strategy? Evidence from the foreign exchange market (with J. Haga), Applied Economics Letters, 2017 (24), 1499-1503.

Does option-implied cross-sectional return dispersion forecast realized cross-sectional return dispersion? Evidence from the G10 currencies (with J.-P. Heinonen), Journal of Futures Markets, 2017 (37), 3-22.

Momentum crash, credit risk and optionality effects in bear markets and crisis periods: Evidence from the US stock market (single-authored), Applied Economics Letters, 2016 (24),387-391.

Is there a credit risk anomaly in FX markets? (with J.-P. Heinonen), Finance Research Letters, 2016 (18), 1-6.

Identifying portfolio-based systematic risk factors in equity markets (with J. Haga), Finance Research Letters, 2016 (17), 79-87.

Another look at momentum crashes: Momentum in the European Monetary Union (single-authored), Applied Economics, 2016 (48), 1759-1766.

Is the asset growth anomaly driven by macroeconomic states? Applied Economics Letters (single-authored), 2016 (23), 576-579.

The market price of credit risk and economic states (with J. Haga), Empirical Economics, 2016 (50), 1111-1134.

Are volatility spillovers between currency and equity market driven by economic states? Evidence from the US economy (single-authored), Economics Letters, 2015 (127), 72-75.

Momentum in global equity markets in times of troubles: Does the economic state matter? (single-authored) Economics Letters, 2014 (123), 100-103.

Idiosyncratic volatility and global equity markets (single-authored), Applied Economics Letters, 2014 (22), 402-405.

Size distortions of the wild bootstrapped HCCME based LM test for serial correlation in the presence of asymmetric conditional heteroskedasticity (single-authored), Empirical Economics, 2015 (48), 1189-1202.

Momentum, sovereign credit ratings, and global equity markets, Applied Economics Letters (single-authored), 2014 (21), 1288-1292.

An empirical analysis of changes of the impact of federal budget deficits on stock market returns (single-authored), Applied Economics Letters, 2013 (20), 921-924.