Analysis
What does it mean for a probability forecast to be calibrated?
Calibration is the match between stated probabilities and observed frequencies — measurable with Brier scores and reliability diagrams, and distinct from…
Author
Sofia Lindqvist
Independent editorial contributor covering investment strategy and financial modeling for VUGA Network publications.
Articles by Sofia Lindqvist
Investing
How much international diversification do you actually get?
Correlations, coverage and return dispersion set the measurable answer — and each has moved over the decades.
Markets
What does dealer gamma exposure measure, and what doesn't it?
GEX estimates aggregate into one number rest on three assumptions each worth checking before the number is quoted.
Analysis
What transaction costs do to a backtest's promised returns
Spread, impact and timing drag compound with turnover — and the strategies they kill are usually the high-Sharape, high-frequency ones.
Finance News
SEC and CFTC issue joint token taxonomy: five categories, one framework
The March 17, 2026 interpretive release sorts digital assets into five categories and caps a decade of shifting SEC policy with a joint document.