An at-the-money straddle is a call and a put bought at the same, near-spot strike. Its combined price is one of the most useful numbers on the board: it's the market's own estimate of how far SPY is likely to move over the option's life, in dollars.
Why the straddle equals the move
A straddle profits from movement in either direction and loses if price sits still, so its price is the market pricing movement. If the at-the-money straddle for today costs about $5.00, the options market is effectively saying SPY's expected move for the session is roughly ±$5. It's implied volatility translated from an abstract percentage into a concrete dollar range you can read straight off the chain.
Reading it in practice
A common shortcut: the at-the-money straddle price approximates the one-standard-deviation expected move, and traders often shave it slightly (multiply by ~0.85) for a tighter estimate of the likely range. Either way, the straddle gives you today's realistic playing field without any math — add and subtract it from spot to get the expected high and low.
The straddle price isn't a trade idea — it's the market handing you the day's range in dollars. Read it, don't fight it.
Using it as a scalper
The expected move frames every other level. A target beyond the straddle-implied range is a low-probability reach; a fade back toward the middle from the edge of the range is the calmer, higher-odds play in a stable regime. It's a reality check on ambition — and it's exactly how NoVo derives the expected-move band it draws on the dealer map, so you're always sizing your target to what the day can actually deliver.
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NoVo is a software tool for market analysis, 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.
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