BasicsMechanicsStrikeRiskTimingSpreadsMarketsBrokersTools

0DTE Options Trading

The complete SPY scalping guide · Mechanics to execution

Zero-days-to-expiry options are now nearly half of all SPX volume — and the fastest, most unforgiving corner of the market. This is the whole map: 82 plain-English guides that take you from "what is 0DTE?" through the mechanics, strike selection, risk, timing, spreads, brokers and tools — every one written for the SPY scalper, not the textbook.

Learn it free here. Then read the dealer map like a desk with NoVo Analyst, and let NoVo execute it in one click — in your own broker — with Trader.

Education only — not financial advice. Options trading involves substantial risk of loss.
01

Start here — what 0DTE actually is

The ground floor: what a zero-days-to-expiry option is, when they trade, and whether they suit you.

  1. 1What Is 0DTE Options Trading? A Plain-English GuideNo jargon — what 0DTE means and how it differs from every other option.
  2. 2Does SPY Have 0DTE Every Day?The daily-expiry schedule, in one page.
  3. 3Are 0DTE Options Worth It?Who they suit — and who they quietly ruin.
  4. 4Is Trading 0DTE Options Gambling?An honest take on the line between edge and lotto.
  5. 5The Complete Guide to 0DTE SPY Options ScalpingThe long-form primer if you want it all in one read.
  6. 6Can You Make Money on 0DTE?The realistic answer, with the math.
02

Why 0DTE moves the way it does

The mechanics that make same-day options behave unlike anything else — theta, gamma, and dealer hedging.

  1. 1Why 0DTE Theta AcceleratesTime decay isn't linear — here's the curve that eats you.
  2. 2Why Gamma Matters for 0DTEThe single force that drives every intraday pin and rip.
  3. 3The 0DTE Gamma Feedback Loop, ExplainedHow dealer hedging amplifies — or dampens — the move.
  4. 4Why Dealers' 0DTE Gamma Concentrates At-the-MoneyAnd why price gets pinned to it.
  5. 5The 3 p.m. Gamma Effect on 0DTE SPYWhy the last hour behaves differently.
  6. 6When 0DTE Pinning FailsGamma on a trend day — when the magnet breaks.
  7. 7Why Short-Dated Fills Are HardSpreads, speed, and the cost of a bad entry.
  8. 8Why 0DTE Spreads Widen Into the CloseAnd what it quietly costs you.
  9. 9Why Your Option Shows a Loss the Second You Buy ItThe bid-ask reality no one warns you about.
  10. 10Why Vega Barely Matters on 0DTEWhich Greeks to ignore on same-day options.
  11. 11Higher-Order Greeks for 0DTECharm, vanna, and what actually moves your P&L.
03

Picking the trade — strike, delta, expiry

How to choose what to buy so the odds aren't stacked against you before the trade even opens.

  1. 1Choosing a Strike for a 0DTE ScalpHow far out-of-the-money is right?
  2. 2What Delta Should I Buy for a 0DTE Scalp?The sweet spot between cost and responsiveness.
  3. 3How Far OTM Is Too Far for a 0DTE Call?The line where a scalp becomes a lottery.
  4. 4The Far-OTM Lottery-Ticket TrapWith the probability math that explains the bleed.
  5. 50DTE vs 1DTE: Which to Trade?When one extra day changes everything.
  6. 60DTE vs Weeklies for BeginnersWhich one to actually start on.
  7. 70DTE vs Swing TradingSpeed vs patience — and which fits you.
  8. 8Reading Put/Call Skew on 0DTE SPYWhat the skew tells you before the move.
04

Risk & position sizing — survive first

The part that keeps you in the game. Size, stops, and the discipline that separates traders from casualties.

  1. 10DTE Risk ManagementThe framework that keeps one trade from ending you.
  2. 2Position Sizing for 0DTEHow much per trade, and why smaller wins.
  3. 3The 1% Rule in Premium TermsFixed-fractional sizing for same-day options.
  4. 4Where Should I Put My Stop?Setting a stop that survives the noise.
  5. 5Hard Stop or Watch It?Why the answer is almost always the hard stop.
  6. 6Your First Trade Should Be One ContractThe cheapest tuition you'll ever pay.
  7. 7The Small-Account 0DTE Reality CheckWhat's actually possible with $2–5K.
  8. 8Common 0DTE MistakesThe errors that drain accounts, ranked.
  9. 9When NOT to Trade 0DTEFive tape conditions that say sit out.
05

Timing the session & managing the trade

When to enter, how long to hold, and how to exit — the decisions that turn a good read into a good result.

  1. 1Best Time of Day to Trade 0DTEThe windows that pay and the ones that chop.
  2. 2The Power-Hour PlaybookTrading the 3pm gamma ramp.
  3. 3The Last-15-Minutes DecisionHold, close, or flatten?
  4. 4What Happens If You Hold Into the Close?Expiry, settlement, and the risks.
  5. 5How Long Should I Hold a Scalp?Why minutes, not hours.
  6. 6How Many Trades Per Day?Fewer than you think.
  7. 7Scaling Out of a WinnerThe exit-ladder approach to locking gains.
  8. 8Rolling a Losing CallWhen it makes sense — and when it's just hope.
  9. 9When Do SPY 0DTE Options Stop Trading?4:00 vs 4:15 PM, and why it matters.
06

Spreads & defined-risk strategies

Beyond the straight call or put — the structures that cap risk, sell premium, or target a level.

  1. 1The 0DTE Iron CondorHow it works, and its real risks.
  2. 2The 0DTE Iron ButterflyA tighter, higher-premium range bet.
  3. 3The 0DTE ButterflyA low-cost, defined-risk bet on a target.
  4. 4The 0DTE Put Credit SpreadA defined-risk bullish premium sell.
  5. 5The 0DTE Call Credit SpreadA defined-risk bearish premium sell.
  6. 6How Wide Should a Vertical Be?Sizing the spread to the move.
  7. 7The 0DTE Long StraddleBuying a big move in either direction.
  8. 8The 0DTE Short StrangleHigh premium, undefined risk — handle with care.
  9. 9Can You Trade a Calendar With 0DTE?The honest answer.
07

Which market — SPY, SPX, QQQ, IWM, XSP

Same idea, different instruments. What changes when you leave SPY, and when it's worth it.

  1. 1SPY vs SPX for 0DTECash vs shares, taxes, and contract size.
  2. 2The Best Index for 0DTE ScalpingSPY, SPX, XSP, QQQ or IWM?
  3. 30DTE Index Options ComparedThe full SPY/SPX/XSP/QQQ/IWM hub.
  4. 4QQQ 0DTE OptionsScalping the Nasdaq's daily expiries.
  5. 5IWM 0DTE OptionsSmall-cap volatility, same playbook.
  6. 6XSP 0DTE OptionsThe cash-settled, tax-friendly mini-SPX.
  7. 7Trading SPY 0DTE on an FOMC DayHow the dealer map changes at 2pm.
  8. 8The FOMC-Day PlaybookTrading the 2pm whipsaw — or not.
08

Your broker — get set up to trade 0DTE

Where to actually place the trade. Which brokers support same-day SPY, and the step-by-steps.

  1. 1The Best Broker for 0DTE OptionsHow to actually decide.
  2. 2The Cheapest Way to Scalp 0DTEIt's not just commissions.
  3. 3Does My Broker Offer 0DTE SPY?How to check in 60 seconds.
  4. 4How to Trade 0DTE by Broker: The HubEvery broker guide in one place.
  5. 5...on Tradier (and Run NoVo On It)The NoVo-native execution broker.
  6. 6...on Alpaca (and Run NoVo On It)The other NoVo-compatible broker.
  7. 7...on RobinhoodStep-by-step setup.
  8. 8...on SchwabStep-by-step setup.
  9. 9...on FidelityStep-by-step setup.
  10. 10...on WebullStep-by-step setup.
  11. 11...on Interactive BrokersStep-by-step setup.
  12. 12...on tastytradeStep-by-step setup.
09

Tools, cost & the honest reality

What a real 0DTE setup costs, what the outcomes actually look like, and how to stay sane doing it.

  1. 1The Best Tools for 0DTE SPY Scalping (2026)An honest roundup — where NoVo fits.
  2. 2What a Complete 0DTE Stack Actually CostsAdd it up before you subscribe to five things.
  3. 3A Buyer's Checklist for Execution ToolsWhat to demand before you pay.
  4. 4How Much Can You Make Scalping 0DTE?An honest answer, not a screenshot.
  5. 5Can You Get Rich Trading 0DTE?The honest math on the dream.
  6. 6Trading 0DTE With a Full-Time JobWhen it works, and when it can't.
  7. 7The Mental Cost of 0DTERecognizing and preventing burnout.
  8. 8Should You Paper Trade First?Pros, cons, and the limits of sim.
  9. 9Building an Account From $5KA realistic path, not a fantasy.
  10. 10How to Backtest a 0DTE StrategyAnd its real limits.
Stop reading five charts. Let NoVo trade the map. The live SPY dealer map + one-click execution in your own broker — the 0DTE scalper's cockpit. See plans →