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Guy Gentile
Guy Gentile: The Official Record
Guides

Trading Guides

I built direct-access brokerages, ran an offshore active-trader firm, and traded through two decades of market structure changes. These guides are the mechanics — rules, capital, taxes, execution, and who is actually on the other side of your order.

Library

Start Here

Each guide stands alone. Together they cover the operational side of active trading that most education skips.

Options

Options Basics for Stock Traders

What calls and puts actually obligate, how time decay and implied volatility price the premium, expiration and assignment mechanics, and the specific ways leverage bites first-year options traders.

Taxes

The Wash-Sale Rule for Active Traders

Why a losing year can produce a taxable gain: the 61-day window, losses deferred into cost basis, the options and IRA traps, and what a Section 475 election changes.

Margin

Margin Requirements Explained

Reg T initial margin, FINRA maintenance floors versus broker house requirements, how margin calls escalate to forced liquidation, and what the loan actually costs.

Rules

Pattern Day Trader Rules vs. Cash Accounts

The $25,000 margin threshold against T+1 settlement: good faith violations, free riding, cash liquidation violations, and the legal routes to trade below the PDT line.

Execution

What Is VWAP? How Traders Actually Use It

The volume-weighted average price explained: the calculation, what price above or below the line really tells you, anchored VWAP, and where the line fails on thin tape.

Small Caps

Low Float Stocks: Why They Move and What They Cost

Float versus shares outstanding, why an empty order book dislocates instead of trending, and the slippage, borrow, and offering risks behind every runner.

Execution

Level 2 and Order Flow: How to Read the Book

Depth of market versus time and sales, the absorption and exhaustion reads that repeat, why displayed size lies, and using the book for sizing rather than signals.

Setups

The Gap and Go Strategy

Qualifying the catalyst and premarket volume before the bell, opening range entries and stops, scaling into strength, and the three reasons the setup fails.

Risk

Position Sizing and Risk Per Trade

Sizing from the stop instead of from conviction, choosing a risk percentage, why drawdown recovery is asymmetric, capping correlated heat, and scaling up on evidence.

Capital

Prop Trading Firms: How the Models Work and What to Check

Desks, evaluation challenges, and deposit models: how drawdown and consistency rules decide who passes, the questions that filter, and the honest math on challenge fees.

Market Structure

Trading Halts and Circuit Breakers

LULD volatility pauses, T1 news halts, regulatory suspensions, index circuit breaker levels, and what actually happens to your stop when there is no market.

Filings

Stock Dilution and Offerings

Shelf registrations, ATM programs, convertibles, and warrants — which filings telegraph a raise and how issuance shows up on the tape before the 8-K hits.

Mechanics

How to Short a Stock: Borrows, Rates, and Squeeze Risk

Locates and borrow rates, what hard-to-borrow really costs, forced buy-ins, how squeezes work mechanically, and when puts are the better way to express the same view.

Risk

Stop-Loss Orders: What They Do, Where They Fail

Stop vs. stop-limit vs. trailing, why stops slip on gaps and halt reopens, and how to place a level defined by structure instead of by the loss you can stomach.

Sessions

Premarket Trading: Hours, Liquidity, and How to Use It

Extended-hours mechanics, why limit orders are mandatory, how to read relative premarket volume, and why the opening auction resets the move you just chased.

Timing

Best Time of Day to Trade Stocks

The intraday volume curve: what the opening hour, the midday lull, and the closing auction each offer, and how to find the hours your own P&L comes from.

Taxes

Day Trading Taxes: Wash Sales, Trader Status, and Section 475

Why your broker's 1099-B can show a gain on a losing year, how the wash-sale rule actually works for active traders, and what trader tax status and a mark-to-market election change.

Capital

How Much Money Do You Need to Day Trade?

The real numbers: the $25,000 PDT floor, what buying power does and does not give you, per-trade risk math, and the minimum account size where the math stops working against you.

Execution

How to Read a Stock Chart (Trader's Version)

Price, volume, level 2, and time and sales — how an intraday trader actually reads a chart, which patterns are structure and which are noise, and the mistakes that cost the most money.

Market Structure

What Is a Market Maker? Who Is on the Other Side of Your Order

Market makers, payment for order flow, internalizers, and dark pools — where your order actually goes, who profits from the spread, and what that means for how you route trades.

Rules

The Pattern Day Trader Rule and How to Trade Around It

FINRA Rule 4210, the $25,000 equity floor, and the six legal routes active traders use when they are below the threshold.

Brokers

Direct-Access Trading: A Due-Diligence Guide

What direct access actually means, how routing and clearing work, and the framework for vetting any active-trading broker before you fund it.

Brokers

The Fastest Direct-Access Broker: How to Measure It

Latency, routing, and fill quality — how to compare execution instead of trusting marketing claims.

Platforms

DAS Trader vs Sterling Trader Pro

A hands-on comparison of the two institutional-grade active-trading platforms from someone who helped build one of the businesses around them.