Eren Biri: How Volatility Traders Think and What Defines AI-Native Hedge Fund | Blushing Quants #28

Jonathan Davies: The Theory That Challenges Every Trader and Investor | Blushing Quants #29

Jonathan Davies is an economist with over 30 years of experience in financial services. Jonathan has worked across several areas of the investment world, including fixed-income research, portfolio strategy, and portfolio management. His career has focused mainly on the macroeconomic side of markets, examining areas such as interest rates, bond yields, currency movements, equity-versus-bond allocation, regional market preferences, and multi-asset portfolio construction. Unlike a single-stock analyst, Jonathan’s perspective comes from understanding how the broader market system works: how economies move, how asset classes interact, how portfolios are built, and how professional investors communicate strategy and risk to clients. In this conversation, we explore one of the most important ideas in financial theory: the Efficient Market Hypothesis. If markets already reflect available information, what does it really mean to be an active investor? Can portfolio managers consistently beat the market, or does outperformance require a clear philosophy, discipline, and a deep understanding of where market inefficiencies may still exist? Jonathan explains why EMH is such a compelling idea, why active management is a strong claim, and why a portfolio manager needs more than past performance to build trust with clients. We also discuss what happens when an investment thesis stops working, how managers think about risk, and why different strategies may work well in some market environments and struggle in others. This episode is a thoughtful conversation about market efficiency, active investing, macro strategy, and the real responsibility of managing capital in uncertain markets.   *DISCLAIMER* The information shared on this podcast is for educational and informational purposes only and reflects the personal opinions of the hosts and guests at the time of recording. Nothing in this podcast constitutes financial, investment, legal, tax, or trading advice, and nothing should be interpreted as a recommendation to buy, sell, or hold any security, cryptocurrency, derivative, or financial product. Trading and investing involve substantial risk, including the possible loss of all or part of your capital. You are solely responsible for your own decisions, and you should consult a qualified professional before making financial decisions. By listening to this podcast, you agree that the hosts, guests, and producers are not liable for any losses or damages arising from the use of any information discussed.

Eren Biri: How Volatility Traders Think and What Defines AI-Native Hedge Fund | Blushing Quants #28

Eren Biri is the founder of OneEye Capital, a volatility-focused investment firm built around a strong mix of quantitative research, discretionary overlays, and deeply engineered infrastructure. With a background in computer engineering, experience at Goldman Sachs and multiple hedge funds, and a career that moved from quant research into trading and portfolio management, he brings a highly practical perspective on what it really takes to run a modern options-focused fund. In this episode, we get into volatility trading, options markets, and the real mechanics of running a fund where risk management comes first. Eren explains how his firm combines systematic strategies with discretionary overlays, why discretionary thinking still matters even in a quant-heavy setup, and how macro awareness, cross-asset relationships, and scenario analysis shape the way he sizes, hedges, and protects positions. We talk about how options traders think in implied probabilities, how relative value opportunities show up across equities, rates, commodities, and volatility surfaces, and why the goal is often not to predict direction but to isolate the exact risk factor you want to own. Eren breaks down delta, vega, theta, gamma, hedging, and portfolio construction, and explains how his team decomposes option markets into tradable components rather than treating them as a single undifferentiated space. Also, explore how a small fund can compete by being engineering-heavy and infrastructure-native. Eren shares how OneEye built its own in-house stack, stores and processes massive options datasets on its own hardware, and uses AI and machine learning tools for signal calibration, regime classification, portfolio optimization, and empirical pricing, without sacrificing explainability where it matters most. On top of that, we discuss what it looks like to run a cross-border team, how to keep a small technical organization aligned around markets, and how to position a young fund in front of investors by offering institutional-grade discipline, strong risk management, and access to strategies most allocators usually only see inside elite buy-side firms.   *DISCLAIMER* The information shared on this podcast is for educational and informational purposes only and reflects the personal opinions of the hosts and guests at the time of recording. Nothing in this podcast constitutes financial, investment, legal, tax, or trading advice, and nothing should be interpreted as a recommendation to buy, sell, or hold any security, cryptocurrency, derivative, or financial product. Trading and investing involve substantial risk, including the possible loss of all or part of your capital. You are solely responsible for your own decisions, and you should consult a qualified professional before making financial decisions. By listening to this podcast, you agree that the hosts, guests, and producers are not liable for any losses or damages arising from the use of any information discussed.

Nikolai Nowaczyk: Credit Risk and Quant Infrastructure | Blushing Quants #27

Nikolai Nowaczyk is a mathematician, published researcher, and quantitative risk professional with a background spanning academia, consulting, and banking. With deep experience in counterparty credit risk, model development, and validation, he brings a rare perspective on how highly technical mathematical ideas are actually implemented inside major financial institutions. In this episode, we get into what counterparty credit risk really is, why it matters so much in derivatives markets, and how institutions measure and manage the risk that a counterparty defaults when a trade is in the money. Nikolai breaks down Monte Carlo simulation, CVA, collateralization, variation margin, initial margin, netting agreements, and the operational reality of managing risk across thousands of counterparties and massive derivatives books. We also talk about regulation, legacy systems, model validation, and why implementing new risk requirements inside large institutions is often far more complex than it looks from the outside. On top of that, we explore machine learning in quant finance, where it can genuinely help, where traditional methods still dominate, and why explainability, documentation, and production rigor remain essential in regulated environments.   *DISCLAIMER* The information shared on this podcast is for educational and informational purposes only and reflects the personal opinions of the hosts and guests at the time of recording. Nothing in this podcast constitutes financial, investment, legal, tax, or trading advice, and nothing should be interpreted as a recommendation to buy, sell, or hold any security, cryptocurrency, derivative, or financial product. Trading and investing involve substantial risk, including the possible loss of all or part of your capital. You are solely responsible for your own decisions, and you should consult a qualified professional before making financial decisions. By listening to this podcast, you agree that the hosts, guests, and producers are not liable for any losses or damages arising from the use of any information discussed.

Ufuk Tasdan: Physics, Crypto, and Energy Market Complexity | Blushing Quants #26

Ufuk Tasdan is a quantitative researcher with an unconventional background spanning physics, philosophy of physics, cryptocurrency trading, and energy market analytics. After studying physics and completing a PhD in philosophy of physics, he moved into applied quantitative work, first in crypto and later in European energy markets, where he focuses on price forecasting, market analysis, and model building for traders and market participants. In this episode, we get into what it means to come into quantitative finance from a non-traditional background, and why some of the most interesting market thinkers often come from outside the usual pipeline. Ufuk shares how philosophy of science, particle physics, and critical thinking shaped the way he approaches markets, model selection, and data interpretation. We talk about the differences between cryptocurrency and energy markets, why crypto can look simpler on the surface but remain deeply opaque, and why energy markets are more transparent in data yet far more structurally complex. Ufuk explains how he thinks about supply and demand in both worlds, why energy markets are uniquely difficult because of negative prices, physical delivery constraints, and spike behavior, and why modeling those spikes is often harder than modeling the trend itself. We also get into economophysics, non-stationary data, analogy-based thinking, return distributions, model robustness, and the limits of standard tools like the Sharpe ratio in highly volatile markets such as crypto. Ufuk shares why he starts with the distribution of returns, how he thinks about interpreting market structure through physics-inspired analogies such as earthquakes and diffusion, and why model simplicity at the core still matters even when the surrounding structure becomes complex. On top of that, we explore machine learning in production, why linear regression still matters, how neural networks can be useful for modeling residuals, and where human judgment remains essential, especially when regime shifts and spikes violate the system's assumptions.   *DISCLAIMER* The information shared on this podcast is for educational and informational purposes only and reflects the personal opinions of the hosts and guests at the time of recording. Nothing in this podcast constitutes financial, investment, legal, tax, or trading advice, and nothing should be interpreted as a recommendation to buy, sell, or hold any security, cryptocurrency, derivative, or financial product. Trading and investing involve substantial risk, including the possible loss of all or part of your capital. You are solely responsible for your own decisions, and you should consult a qualified professional before making financial decisions. By listening to this podcast, you agree that the hosts, guests, and producers are not liable for any losses or damages arising from the use of any information discussed.

Oded Shimoni: Low-Correlation Strategies, Research, and ETF Innovation | Blushing Quants #25

Oded Shimoni is the CEO of AlphaBeta, a quantitative R&D company focused on systematic, low-correlation investment strategies across products such as mutual funds, alternative ETFs, hedge funds, and tracking funds. His work sits at the intersection of quantitative research, portfolio construction, factor investing, and the growing world of liquid alternative investment vehicles. In this episode, we get into what it actually takes to build low-correlation strategies in practice, and how quantitative research can be used to construct broad, systematic portfolios designed to behave differently from traditional market exposure. We talk about long-short equity, merger arbitrage, factor investing, and the challenge of turning academic ideas into investable products that can survive real market constraints. Oded explains how his team approaches weight allocation, why machine learning and deep learning can be useful for dynamically allocating across factor exposures, and why economic rationale, clean data, and point-in-time discipline still matter more than model complexity alone. We also get into portfolio construction, explainability, missing data, normalization, correctly identifying lagging fundamentals, and the importance of working with liquid universes and reliable data providers. Beyond the research side, we explore the evolution of active and alternative ETFs, portable alpha, capital efficiency, and why the ETF wrapper is opening the door for strategies that were once mostly reserved for hedge funds.   *DISCLAIMER* The information shared on this podcast is for educational and informational purposes only and reflects the personal opinions of the hosts and guests at the time of recording. Nothing in this podcast constitutes financial, investment, legal, tax, or trading advice, and nothing should be interpreted as a recommendation to buy, sell, or hold any security, cryptocurrency, derivative, or financial product. Trading and investing involve substantial risk, including the possible loss of all or part of your capital. You are solely responsible for your own decisions, and you should consult a qualified professional before making financial decisions. By listening to this podcast, you agree that the hosts, guests, and producers are not liable for any losses or damages arising from the use of any information discussed.