Library term·Psychology

R-Multiple Journals — Engineering Expectancy from Trade-Level Statistics

Win rate × avg win R vs avg loss R, autocorrelation of streaks and sufficiency sample sizes for inference.

Authored by·Editorially reviewed

Founder, Financial Engineer · CMB-licensed

Higher education in Financial Engineering and Money & Capital Markets. SPK (Turkey CMB) licence. 16 years across institutional markets, research, and quant-driven analytics.

Expectancy identity

Roughly (mathbb E = p W - (1-p)L) in R multiples — interplay of frequency vs skew determines survival.

Data discipline tag MAE/MFE exits slippage separate signal vs execution quality

Sample pathology small N inflates inferred edge — Bayesian shrinkage prudent.

Finvestopia

Trader education emphasises journaling — this quantifies journal math.

Related entries

Risk-Reward Ratio (R:R)

The expected profit of a trade divided by its potential loss. A 1:3 ratio means a $1 risk is taken to make $3.

Maximum Adverse Excursion (MAE) as an Algorithmic Objective & Diagnostics Tool

Path-dependent drawdown inside trades, optimisation pitfalls, linkage to stop placement and expectancy decomposition.

Educational content authored by our team — informational only, not investment advice.