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Order Types
What Is a Market Order? Speed Over Price
The simplest order type, and the one that most often surprises new options traders when the fill comes back worse than the quote.
NoVo Options Trading · 2026
A market order buys or sells immediately at the best available price — it prioritizes certainty of execution over certainty of price. You’ll get filled right away, but not necessarily at the price you saw.
How it works
A market buy fills at the ask; a market sell fills at the bid — whatever’s available now. In a liquid, tight-spread market (like near-the-money SPY), that’s usually fine. But in a fast or thin market, the price can move in the instant your order travels, so the fill can differ from the quote (slippage).
When to use it (and not)
Use a market order when getting in or out fast matters more than the exact price — e.g., you need to exit a losing 0DTE now. Avoid it on wide-spread or illiquid options, where it can fill far from the mid. For price control, use a limit order instead; for a balance, a marketable limit.
A market order says “fill me now, whatever the price.” Great for speed on liquid strikes, dangerous on wide spreads.
The takeaway
Market orders trade price certainty for speed — fine on liquid SPY options, risky on thin ones. Know the spread before you send one. NoVo’s adaptive routing aims for good fills rather than blindly crossing the spread.
More on this: Single Prints in Market Profile: Where Price Moved Too Fast
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NoVo is a software tool for market analysis and for executing trades you initiate, not financial advice. This article is general education, not investment advice. Options trading involves substantial risk of loss, up to and including your entire capital. NoVo makes no guarantee of profit, win rate, or performance, and past results do not predict future outcomes. You are responsible for your own broker account, configuration, and trading decisions.