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Trading Reality

Markets in Production

Trading Reality is an independent practitioner publication on the operational reality of systematic trading.

Most writing about trading starts with signals, setups, indicators, portfolio construction, or psychology. This publication starts somewhere less fashionable and usually more decisive: the practical mechanics that determine whether a strategy can survive contact with real markets.

That means execution quality, market selection, liquidity, adverse selection, order flow, transaction costs, participant structure, infrastructure, and the gap between a clean backtest and a tradable system.

Who It Is For

Trading Reality — Markets in Production is for the people who care about what happens after a signal is found — and who are rigorous enough to keep asking whether it was a signal in the first place. Systematic traders, quants, execution specialists, allocators, PMs, anyone whose work touches the operational side of trading systems. Anyone else with a genuine interest is welcome too.

The recurring concern is how to find real signal — and what changes once it meets a real market.

A strategy is not real until it has been executed. Execution is not downstream of the strategy. Execution is part of the strategy.

Editorial Independence

TR — Markets in Production does not run advertising, sponsorships, affiliate links, referral kickbacks, or paid promotion inside editorial work. There is no pay-to-play coverage and no payment from any party covered.

That independence is not branding. It is the operating model. The publication is meant to earn trust by staying structurally unconflicted.

Core Themes

Execution

Execution is where signal, liquidity, cost, timing, and market choice become one thing. Good fills and bad fills are not just operational details. They are information about whether the trade was available, contested, crowded, or structurally fragile.

Front-Loaded Value

Good trades often realize a large share of their value early. Bad trades often do not have the same shape. That distinction affects signal discovery, sizing, exits, holding periods, and execution assumptions.

Market Participants

Trading systems implicitly assume a participant mix. They assume something about who is providing liquidity, who is demanding it, who is informed, who is uninformed, and how quickly information is being absorbed into price.

Infrastructure

Trading systems do not live in papers. They live in production environments with venues, brokers, data feeds, latency, routing, operational constraints, monitoring, and failure modes. Cross-connects. Downtimes. Network bursts. Infrastructure is not decorative. It shapes what can be traded, at what size, and under what conditions.

Topic Index

The main topics covered here include:

Execution
Market Microstructure
Trading Systems
Systematic Trading
Market Structure
Order Flow
Adverse Selection
Liquidity
Transaction Costs
Alpha Decay
Market Makers
Backtesting Assumptions
Production Trading Infrastructure

What This Is Not

Trading Reality is not a signal service, a trading-call publication, or a retail trading psychology newsletter. It is not about predicting the next candle. It is about understanding the structure underneath trading decisions and the implementation layer that turns a thesis into an actual position.

Adjacent: ordersim, an open-source execution simulator that came out of the same thinking — github.com/tradingexpert/ordersim

About The Author

Trading Reality is written by Tibor S. The pieces come from the seat — years building and running systematic strategies, an HFT desk that made up 5% of Nasdaq OTC for several years, a CFD brokerage, tenures at a top-tier bank and a hedge fund.

The practical bias of this publication comes from that background: markets are not abstractions. They are systems of participants, incentives, latency, liquidity, constraints, costs, and adverse selection. The writing is practitioner-grounded, but it takes theory seriously when theory earns its keep.

Trading Reality — Markets in Production