David Stewart (aka OptionsDave).
I cannot say enough good things about Ernie and the 0DTE service. I have been selling option premium for well over ten years with very average results and most recently had been following TastyTrade and their mechanics. After 760 round trip trades last year following TastyTrade mechanics…READ MORE
Kerry Hill
I’ve been a member for almost two weeks and am really impressed with the 0DTE trading group! Ernie is very active within the community and hosts daily streaming morning and afternoon calls. He posts his trades daily and more importantly explains the why behind the trade and risk management…READ MORE
Emilio Merisier
This is by far the best option strategy with exceptional mentorship service. I love this strategy because the risk is very low compares to any other strategy and the reward is very good, a wonderful risk to reward approach, this service will teach you a framework that can compound your money…READ MORE
Francisco Salinas
I came to Ernie’s site 0-dte.com looking for information on 0dte strategies. As an options trader I was looking for daily performance strategies to complement the ones I already do longer term. After trying for a single week I decided to subscribe for a full year. I really like the risk/return approach of…READ MORE
The Problem
High win rates sound compelling. But require enormous risk, and losses wipe out weeks of gains. You’re not failing—you’re playing the wrong game. Professionals focus on risk-adjusted returns.
You win often but small. One bad day wipes it all. The risk is hidden in the size.
You’re following, not trading. You never build the understanding you need to be independent.
Without a structured review process, you repeat the same mistakes indefinitely
The STRATEGY
We trade out-of-the-money SPX butterflies on the final day of expiration, capturing premium decay with defined risk and no need to predict direction.
Position size is calculated so that even 10 consecutive losses produce a small drawdown. The math is the discipline.
A 47% win rate with a 1.7x win/loss ratio beats a 90% win rate that bleeds you on the losses. We build for the ratio.
Preparation → execution → reflection. Daily. Every session. The routine is what makes the strategy actually work over time.
The COACH
Over 30 years trading real capital as an institutional trader and fund manager. Former Chief Architect at Sun Microsystems, where he oversaw Wall Street’s biggest platform builds of the dot-com era. Five years running the 0DTE coaching service. Built FatTail because nothing on the market gave him the structural picture he needed.
I’ve been profitable at a 30% win rate. I’ve blown up at 90%. Win rate is noise. Structure, routine, and focus on fundamentals are the only things that matter.
— Ernie Varitimos, Founder
YEARS TRADING REAL CAPITAL
RUNNING THIS COACHING SERVICE
TRADERS FOLLOWING ON SOCIAL
WHAT YOU’RE PAYING FOR
Your subscription covers the strategy, the method, the process, and Ernie’s coaching. You also get a vibrant Discord-based trade room with hundreds of like minded traders. You need a standard brokerage account (ThinkorSwim, Tastytrade, IBKR) and TradingView for volume profile. That’s it.
About the FatTail app: A dedicated options analysis platform built from the ground up for 0DTE structural trading. The core is fully operational today — a Risk Graph as capable as ThinkorSwim’s Risk Analyzer, with capabilities ToS doesn’t have: theoretical pricing overlays, probability bands, and a time machine for walking positions through the day. Around it: the Convexity Heatmap, GEX & Volume Profile overlay, trade log, journal, and playbook. Built personally by Ernie — Sun Microsystems’ former Chief Architect, who oversaw Wall Street’s biggest platform builds of the dot-com era. New capability ships every week — subscribers get all of it, and your feedback shapes what comes next.
FatTail Membership
Every membership is the same platform and the same room. What changes is how long you commit for — and what that costs you.
The six-week training course. Everything, nothing held back.
Everything Navigator gets
And when it ends
The complete membership. Every session, every trading day.
Coaching
Everything else
Everything in Navigator. Paid once, kept forever.
Everything in Navigator
And then
Stay a full month — or complete the 6-week Observer membership — and the entire course library and Options Lab are yours for a year, even if you leave.
Secure checkout on fattail.ai. Cancel anytime.
