WINNERSTOCK Research Blog
Delta Hedging Fundamentals: A Beginner's Guide to How Market Makers Hedge
How market makers stay delta-neutral, and how Gamma, Charm, and Vanna each force dealers to rebalance — and why that matters for SPX 0DTE trading.
How to Read SPX 0DTE Customer Position by Strike
A plain-English guide to the Customer Breakdown by Strike chart: what each bar means, how to read the three views, and what the data cannot tell you.
NVDA Earnings Options Flow: Long vs. Short, By The Numbers
Three sessions of large-order NVDA flow before earnings, split into long vs. short with the top strikes, premium, and OI change for each.
What AMZN and MSFT Showed Before the Gap
Forward-looking OI, GEX, DEX and VEX changes before the breakout.
GEX Heatmap Makes SPX 0DTE Trading Easier
A beginner-friendly way to use GEX levels and premium flow to build a 0DTE plan.
