The problem with fixed dollar targets is simple: they ignore market structure. A $100 target on a day where price gapped $3 from VWAP is leaving money on the table. A $100 target when the gap is $0.80 means you’re holding through noise for a move that may never come.
The formula I landed on: (Price − VWAP) × Delta = Expected P&L per contract.
With a 0.70 delta strike and a minimum $1.43 gap requirement, each contract needs to deliver roughly $1.00 of intrinsic movement to justify the entry. That’s not a guess — it’s the math.
Here’s what changed in my trading when I adopted this:
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Entries got more selective. The $1.43 minimum gap is a natural filter. Most of the day, SPY trades too close to VWAP for this to trigger.
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Exits became structural. Instead of watching P&L and hoping, I set a limit order at VWAP. Price either gets there or it doesn’t — and the stop handles the “doesn’t.”
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My win rate went up because I stopped taking low-conviction setups. The gap requirement forces patience.
The key insight: VWAP isn’t just an indicator. It’s where institutions are transacting. When price deviates significantly, mean reversion isn’t hope — it’s gravity.