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Trading System

62 articles
Tennis Ball vs. Egg: Decoding How a Stock Reacts After a Pullback
pvl-academy

Tennis Ball vs. Egg: Decoding How a Stock Reacts After a Pullback

Tennis Ball and Egg behavior are core SEPA position management tools. This article explains Natural Reactions, Tennis Ball Action, Egg behavior, and the Squat pattern so investors can judge whether to hold through a pullback or raise risk controls.

Time Compression: VCP's Most Overlooked Second Dimension
pvl-academy

Time Compression: VCP's Most Overlooked Second Dimension

Time compression is the overlooked second dimension of VCP patterns. This article explains how higher lows, tightening pullbacks, shorter contractions, and volume dry-up reveal the real SEPA accumulation structure before breakout.

Let It Bleed: Why I Never Trade the Night Session
Trading System

Let It Bleed: Why I Never Trade the Night Session

At 04:30 Taiwan time on June 6, 2026, Taiwan Futures plunged 1,441 points in under eight minutes — then snapped straight back. A three-layer breakdown: stop-loss cascades, arbitrage mechanics, and why my Trading System SOP has always kept me out of the night session entirely.

CANSLIM Explained: How O'Neil Decoded Market Leaders with Seven Letters
pvl-academy

CANSLIM Explained: How O'Neil Decoded Market Leaders with Seven Letters

CANSLIM Series C-01 · Overview "He who knows when he can fight and when he cannot will be victorious." —— Sun Tzu · The Art of War · Attack by Stratagem Markets are battlefields. Most investors enter armed with nothing but vague intuition. A small minority enters with a rigorous, historically tested checklist for selecting the strongest candidates. William O'Neil spent decades studying every major winner in the U.S. market since the 1880s and distilled their shared characteristics into sev

CANSLIM C+A Factor: EPS Acceleration Is the First Gate to Finding Superperformance Stocks
pvl-academy

CANSLIM C+A Factor: EPS Acceleration Is the First Gate to Finding Superperformance Stocks

CANSLIM Series C-02 · EPS Acceleration 「大學之道,在明明德,在親民,在止於至善。」 — The Great Learning, Chapter 1 The Confucian concept of "illuminating virtue" (明德) is the pursuit of a clear, unclouded understanding — free from distortion. In stock research, there is a near-equivalent standard: EPS acceleration. Like a lighthouse cutting through fog, it illuminates which companies among thousands are "rising with accelerating force." William O'Neil's decades of historical research reached a consistent con

CANSLIM M Factor: Market Direction Is the Final Arbiter of All Your Stock Selection Work
pvl-academy

CANSLIM M Factor: Market Direction Is the Final Arbiter of All Your Stock Selection Work

CANSLIM Series C-05 · M Factor · Bridge to SEPA 「天時不如地利,地利不如人和。」— 孟子·公孫丑下 —— Mencius · Duke of Gong Sun, Part II Mencius ranked favorable timing, favorable terrain, and human unity — and concluded human unity matters most. But that doesn't mean timing is unimportant. The deeper point is this: without favorable timing, even the best terrain and the strongest unity will often fall short. Market direction is the timing factor in investing. After decades of research, O'Neil arrived at an unc

CANSLIM L+I Factor: Market Leaders and Institutional Money Are Co-Authors of Superperformance
pvl-academy

CANSLIM L+I Factor: Market Leaders and Institutional Money Are Co-Authors of Superperformance

CANSLIM Series C-04 · L+I Factors 「良禽擇木而棲,賢臣擇主而事。」 — Zuo Zhuan (The Commentary of Zuo) A thoroughbred doesn't settle for inferior fodder, waiting for a master horseman to discover it. Smart capital doesn't settle for mediocre stocks either. Institutional money is by nature selective — it flows toward the strongest and most promising among its peers. CANSLIM's "L" and "I" teach you to identify: which stocks are being quietly targeted by smart money, and which are merely making noise fuel

CANSLIM N+S Factor: New Catalysts and Supply Structure Determine How Far a Stock Can Move
pvl-academy

CANSLIM N+S Factor: New Catalysts and Supply Structure Determine How Far a Stock Can Move

CANSLIM Series C-03 · N+S Factors 「天下皆知美之為美,斯惡已;皆知善之為善,斯不善已。」 — Tao Te Ching, Chapter 2 Lao Tzu writes: once everyone knows what beauty is, it ceases to be purely beautiful. Applied to stocks, this carries a ruthless mapping: When everyone "knows" the story, its profits have already been fully priced in. CANSLIM's "N" (new catalyst) chases that moment when "most people don't yet know — or know but haven't yet fully believed" — a new product just launched, a new market just opened, a new

Your First Bull Put Spread on IBKR: From Level 3 Permissions to Position Exit
Trading System

Your First Bull Put Spread on IBKR: From Level 3 Permissions to Position Exit

Bull Put Spread is the ideal first strategy for options sellers: maximum loss is locked in before entry, margin requirements are low, and the logic is clean. This guide walks through every step on IBKR — from applying for Level 3 permissions to placing a Combo order and setting your 50% profit exit.

Why I Sell Options Instead of Buying Them: Probability, Theta & IV Premium
Trading System

Why I Sell Options Instead of Buying Them: Probability, Theta & IV Premium

Over 70% of options expire worthless — the market structurally favors sellers via three edges: probability, daily Theta decay, and the IV premium in every contract. This article explains why selling beats buying on a statistical level, and what that means for your trading system.

Delta, Theta, IV & Gamma: The Options Greeks Every Seller Needs to Know
Trading System

Delta, Theta, IV & Gamma: The Options Greeks Every Seller Needs to Know

Four Greek letters determine the behavior of every options position: Delta selects your strike, Theta earns you daily income, IV Rank times your entry, and Gamma signals when to exit. This guide explains each one through the lens of the options seller — concise, precise, and immediately actionable.

How to Read an Options Chain: Every Column Explained
Trading System

How to Read an Options Chain: Every Column Explained

An options chain looks like a wall of numbers — but every column tells you something precise. This guide decodes Bid, Ask, Strike, Delta, IV, and Open Interest row by row, so you can read any options chain and immediately know which contracts are liquid, fairly priced, and worth trading.

5 Core Options Terms Every Investor Must Know
Trading System

5 Core Options Terms Every Investor Must Know

Before placing your first options trade, five terms determine whether you know what you're doing: strike price, expiration date, premium, in-the-money, and out-of-the-money. This guide explains each with real options chain examples — so you never misread a contract again.

What Is an Options Contract? A Stock Investor's Guide to the Insurance Analogy
Trading System

What Is an Options Contract? A Stock Investor's Guide to the Insurance Analogy

Most stock investors think of options as complex speculation tools. This guide reframes everything: an options contract is simply a structured insurance policy. Learn what buyers and sellers each pay and collect — and why understanding this asymmetry is the first step toward options mastery.

The Options Seller's Four-Filter System: A Complete Guide to Systematic Stock Selection
Trading System

The Options Seller's Four-Filter System: A Complete Guide to Systematic Stock Selection

ProfitVision LAB · Options Seller Strategy · Systematic Stock Selection ProfitVision LAB · Core Belief Whether a seed grows into a giant sequoia is decided the moment it touches the ground three thousand years ago. Whether an options trader survives long-term is decided before the trade — at the moment of stock selection. 📌 Key Takeaways * The biggest reason options sellers lose money is not a flawed strategy — it's choosing the wrong underlying. The Four-Filter System wa

Options Market Reality Check: Who's on the Other Side When You Hit Buy?
Trading System

Options Market Reality Check: Who's on the Other Side When You Hit Buy?

U.S. options hit $2.7T daily notional in 2024—surpassing equities. Retail buyers lose 16.4% over 3 days on average. Sellers win 94% at expiry, but win rate is not profitability. Breaks down market depth, buyer/seller asymmetry, and the institutional cross-instrument toolbox.

Why the Options Selling System Works Better in US Markets Than Taiwan
Trading System

Why the Options Selling System Works Better in US Markets Than Taiwan

Options selling success depends on market structure, not strategy. US equity options offer institutional depth and real Defined Risk. Taiwan individual stock options lack liquidity; TXO faces overnight gap risk that can destroy an account in one session. Two markets, two survival equations.

Options Greeks for Sellers: The Actuary's Four Numbers
Trading System

Options Greeks for Sellers: The Actuary's Four Numbers

You don't need calculus to master options Greeks — think like an actuary. Delta is your claim probability, Theta is your daily premium income, Vega is your storm-season coefficient, and Gamma is the eye-of-the-storm accelerator. ProfitVision LAB's complete seller's Greeks framework.

Discipline Has a Price: Why TCAF Wins and RVER Loses
Trading System

Discipline Has a Price: Why TCAF Wins and RVER Loses

RVER and TCAF are both actively managed GARP ETFs with similar expense ratios, but turnover differs by 6x and AUM differs by 50x. This four-dimensional comparison dissects what active management really delivers — discipline is what gives alpha its market price.

When Active ETFs Fail: A Discipline Audit of RVER
Trading System

When Active ETFs Fail: A Discipline Audit of RVER

RVER is an actively managed GARP ETF with credible narrative and seasoned managers. Yet since inception, it has trailed the S&P 500 by 7.87 percentage points annualized. This article uses the Four-Filter Defense Screen to dissect its strategy drift and execution failure.

Why I Chose the Options Sell Side: A Lifetime Framework, Not a Technique
Trading System

Why I Chose the Options Sell Side: A Lifetime Framework, Not a Technique

The options seller doesn't predict markets — they price and manage uncertainty. A guide to the sell-side philosophy: probability edge, Theta psychology, mark-to-market vs. margin discipline, black swan protocol, and the pre-trade checklist. A lifetime framework, not a technique.

The Wheel Strategy: Collect Premium Before Entry, Reduce Cost While Assigned
Trading System

The Wheel Strategy: Collect Premium Before Entry, Reduce Cost While Assigned

The Wheel generates cash flow at every stage: sell CSP to earn premium while waiting for entry, accept assignment at support, then sell Covered Calls to reduce cost basis — repeating indefinitely. Covers TSM case study, Delta 0.20 · 21 DTE parameters, and risk management rules.

IBKR: 7 Switches to Flip After Funding Your Account
Trading System

IBKR: 7 Switches to Flip After Funding Your Account

Don't rush to trade after funding. Spend 10 minutes enabling these 7 switches: stock lending, class action recovery, 4.8% cash interest, Portfolio Margin, transparent options commissions, dividend reinvestment, and recurring investments.

Bull Put Spread & Covered Call: Options Income Guide
Options Selling

Bull Put Spread & Covered Call: Options Income Guide

Don't predict direction — price risk. This guide unpacks Bull Put Spread and Covered Call income mechanics, optimal execution timing, and the Four-Layer Defensive Screen that ensures underlying quality — building a repeatable cash flow framework.

Trading System

CANSLIM/SEPA Screening Report 2026-05-01

ProfitVision LAB internal CANSLIM/SEPA screening report for 2026-05-01. 867 stocks scanned, 71 passed the six thresholds. Includes market status monitoring, Top 5 names, week-over-week rotation changes, and industry heat-map analysis.

Q1 2026: From Naked Puts to Vertical Spreads
Trading System

Q1 2026: From Naked Puts to Vertical Spreads

ALAB gapped down 8% overnight. The 160P blew past my strike — a −$758 loss that wiped out multiple winning trades. That single event triggered a complete framework shift: every new position from March onward became a vertical spread with defined max loss before entry. 13 spreads. 13 wins.

Beyond Entry: NVDA Options Decision Framework
Trading System

Beyond Entry: NVDA Options Decision Framework

The breakout signal is public information. "What to do next" is where the real work begins. Using NVDA as a case study, this article builds a complete options decision framework across five layers: Four Defense Filters, Three Market States, exit strategy, reward-risk ratio, and position discipline.

【交易系統】NOW 制度化建倉框架 v2.1:三段式框架的情境判讀與方法論設計
Trading System

[Trading System] NOW Systematic Position-Building Framework v2.1: Reading the Setup and Designing the Methodology Under the Three-Stage Framework

A general methodology framework for NOW's upgrade from cautious watching to a Stage 3 core position-building determination. When a selling climax, an accumulation prelude, and fundamentals validation stack together, how do you apply the Three-Stage Framework, how do you address the short-term noise of a Q2 cRPO guide of 19% and Adj OM guide of 26.5%, and how do you design tranche entries and stop conditions under your own risk-management rules. All specific position sizes, entry prices, and stop-loss levels are for each investor to decide.

當我開始用 Alpha,而不是感覺,重新選擇核心資產
Asset Allocation

When I Started Choosing Core Assets With Alpha, Not With a Feeling

Redefining 'core assets' with Alpha: no longer picking based on feeling or familiarity, but screening with three quantifiable lines — excess return, Sharpe Ratio, and downside protection. A replicable framework for selecting core assets.

PMCC Pro: You're Not Collecting Rent — You're Collecting Panic
Trading System

PMCC Pro: You're Not Collecting Rent — You're Collecting Panic

Running PMCC on IBIT as a "stable rent trade" is the wrong framework. IBIT is a volatility vehicle — high IV is your edge, not your obstacle. Three core adjustments: defensive LEAP (Delta 0.80–0.90, 24 months), flexible Short Call (IV Rank-based), roll at 50% profit.

PMCC Advanced: The 1-Year LEAP vs. Time Decay
Trading System

PMCC Advanced: The 1-Year LEAP vs. Time Decay

1-year or 2-year LEAP? Not a preference — a risk management decision. Covers Theta acceleration, roll timing (trigger at 6–7 months), and three Short Call adjustments that transform PMCC from passive premium collection into active time management.

PMCC Intro: What Is a LEAP? Low-Cost Stock Exposure
Trading System

PMCC Intro: What Is a LEAP? Low-Cost Stock Exposure

LEAP is the most underrated tool in options. It lets you replicate stock Delta exposure using 20–30% of the capital, freeing the rest for deployment. This is the true starting point of PMCC. Part 1 of the PMCC Trilogy.

如何用Claude的三工具完成一篇個股深度研究:以Fabrinet (FN)為例
Trading System

How I Used Claude's Three Tools to Complete a Deep Stock Research Report: Fabrinet (FN) as the Case Study

Most people use AI for investment research by 'opening a chat, asking questions, copying and pasting.' This article shows a completely different method: using Claude's three-layer architecture — Skill (standardized screening), Project (a persistent workspace), and CoWork (local execution) — to turn research from a one-off conversation into a repeatable system. Using Fabrinet (FN) as the case study, every step is broken down, from screening FN out of 300 stocks to producing a 6,600-word report and publishing it live.