FinCore Blog
Short, evidence-grounded essays on the behavioral side of investing — written alongside the platform, for anyone who wants the reasoning behind the signals, not just the signals.
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This page will grow into the full archive as the series continues.
What our investment decisions may reveal about us — a six-week series.
Two investors can look at the exact same stock, at the exact same price, and see two entirely different situations — one a gain worth protecting, the other a loss worth waiting out. Neither is reacting to the stock. Both are reacting to the price they remember paying. First in a six-part series on the psychology behind ordinary trading decisions.
What losing money quietly changes about how we choose our next trade — part two of the six-week series.
A ₺100 loss looks like a simple math problem — until the goal quietly shifts from making the best next decision to getting that exact ₺100 back. This piece traces how losses reshape position size, timing, and what starts to look “attractive” afterward, and asks why noticing the pattern in yourself so rarely stops it. Second in the six-part series on the psychology behind ordinary trading decisions.
What a winning trade quietly teaches us that a losing one doesn't — part three of the six-week series.
A loss makes us question ourselves; a win rarely does. But an account statement never says whether the profit came from skill, from beta, from a factor that happened to be working, or from luck — so the investor fills that gap in himself. This piece traces how a good outcome quietly inflates position size and shrinks the questions we ask afterward, and why confidence detached from process is the more flattering danger. Third in the six-part series on the psychology behind ordinary trading decisions.
How a stock enters your attention in the first place — part four of the six-week series.
There are hundreds of stocks an investor could research. He looks at five, and buys one — but the more interesting question is why those five entered his mind at all. A tip from someone respected, a foreign-flow screen, an IPO everyone is discussing, a name that suddenly moves: this piece traces how the trigger that captures attention gets quietly mistaken for the reason to buy, and what still has to happen after the ticker arrives. Fourth in the six-part series on the psychology behind ordinary trading decisions.
What a portfolio says about the decisions someone has avoided making — part five of the six-week series.
Two portfolios can look similar on paper and still tell completely different stories: one reviewed on a rule, the other holding an old loser nobody wanted to face and a winner that quietly grew too large. A portfolio does not only show what someone owns — it also shows what someone has avoided deciding. This piece reads concentration, the neglected middle positions, lottery-like small caps and dividend attachment as records of behavior rather than strategy. Fifth in the six-part series on the psychology behind ordinary trading decisions.
The final essay in the series will appear here as it publishes.
Every essay goes up on both Substack and Medium — follow whichever one you already read. Or reach out if you'd rather talk through how the behavioral research connects to what FinCore ships.