Plain-English lessons on the signals we track用大白话讲清我们追踪的信号
What a 52-week high really tells you. How RSI is actually built. Why position sizing is the one edge you fully control. Honest, source-linked, no jargon walls.52 周新高到底说明什么。RSI 究竟怎么算。为什么仓位管理是你唯一能完全掌控的优势。诚实、附来源、没有术语墙。
The desk’s full field guide to dealer gamma, charm and the daily options weather — the deepest lesson we publish.本台关于做市商 Gamma、Charm 与每日期权天气的完整实战指南——我们发布的最深入一课。
01 Technical Analysis
What 52-Week Highs Actually Measure
A 52-week high marks a price not seen in a year. Learn what that means mechanically, why highs cluster, and how distance from high works as a trend gauge.
Read lesson →阅读课程 →MACD: Construction, Lag, and What the Histogram Means
MACD uses three EMAs (12, 26, 9). Learn the exact recurrence formula, what the histogram represents, and why lag is a structural cost, not a bug to fix.
Read lesson →阅读课程 →Market Breadth: Measuring Who Is Actually Participating
Breadth reveals whether gains are broad or narrow. Learn advance/decline, percent above moving averages, new highs minus lows, and what divergence signals.
Read lesson →阅读课程 →RSI Explained: Mechanics, Limits, and When It Lies
RSI measures recent gains vs. losses via Wilder smoothing. Learn the exact formula, what 70 and 30 actually mean statistically, and when RSI stops working.
Read lesson →阅读课程 →VWAP and Anchored VWAP: The Fair-Price Reference
VWAP is volume-weighted average price from a chosen anchor. Learn the formula, why institutions use it as a benchmark, and the trap of calling it support.
Read lesson →阅读课程 →02 Risk & Position Management
Position Sizing: The Only Edge You Fully Control
Fixed-fractional sizing sets shares from account size, risk %, entry, and stop. Learn the formula, a worked example, and what it cannot protect you from.
Read lesson →阅读课程 →Risk/Reward Ratios and Trade Expectancy Explained
R multiples, breakeven win rates, and expectancy show whether a setup has edge. Learn the formulas and the trap that makes most R:R calculations worthless.
Read lesson →阅读课程 →04 Options & Dealer Positioning
Charm and Vanna: Second-Order Options Mechanics
Charm and vanna describe how an option's delta drifts with time and volatility. Learn the mechanics as context only, with an honest note on their limits.
Read lesson →阅读课程 →Dealer Hedging: How Delta Rebalancing Becomes Order Flow
Selling 100 calls at 0.4 delta means buying 4,000 shares to stay neutral. Learn how continuous delta rehedging turns into real buy and sell pressure.
Read lesson →阅读课程 →The Gamma Flip and Walls: Reading Regime Boundaries
The gamma flip is where dealer hedging switches from stabilising to amplifying. Learn what crossing it means and how to read a levels map on our GEX page.
Read lesson →阅读课程 →Long Gamma vs Short Gamma: Two Market Regimes
In long gamma dealers fade moves and volatility compresses; in short gamma they chase and moves amplify. Learn the feedback loop behind each regime.
Read lesson →阅读课程 →Market Makers: Who Takes the Other Side of Your Trade
A market maker takes the other side and stays delta-neutral. Learn why that neutrality forces mechanical buying and selling in the underlying stock.
Read lesson →阅读课程 →What Open Interest Can and Cannot Tell You
The same open interest fits a dealer being flat, long, or short. Learn why OI alone cannot sign dealer inventory and what modelling fills the gap.
Read lesson →阅读课程 →The 0DTE Era: How Options Started Driving Markets
Same-day options grew from a niche to a huge share of index volume. Learn why the options chain now drives the tape instead of just tracking it.
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