Zero-DTE Strategy API

Endpoint

curl -H "X-Api-Key: YOUR_API_KEY" \
  "https://lab.flashalpha.com/v1/strategies/zero-dte/SPY"

import requests

resp = requests.get(
    "https://lab.flashalpha.com/v1/strategies/zero-dte/SPY",
    headers={"X-Api-Key": "YOUR_API_KEY"}
)
data = resp.json()
print(f"{data['decision']} (score {data['score']}, regime {data['regime']})")

const resp = await fetch(
  "https://lab.flashalpha.com/v1/strategies/zero-dte/SPY",
  { headers: { "X-Api-Key": "YOUR_API_KEY" } }
);
const data = await resp.json();
console.log(`${data.decision} (score ${data.score}, regime ${data.regime})`);

Response

Returns the standard strategy decision envelope. The metrics and regime fields are specific to this strategy (see below).

{
  "strategy": "zero_dte",
  "symbol": "SPY",
  "timestamp": "2026-06-05T14:32:11Z",
  "decision": "candidate",
  "score": 72,
  "confidence": 0.83,
  "regime": "range_compression",
  "best_structures": [
    {
      "rank": 1,
      "structure": "iron_fly",
      "expiry": "2026-06-05",
      "legs": [
        { "action": "sell", "type": "put", "strike": 588, "delta": -0.25, "premium": 1.42, "quantity": 1 },
        { "action": "buy",  "type": "put", "strike": 578, "delta": -0.12, "premium": 0.72, "quantity": 1 }
      ],
      "credit": 0.70,
      "debit": null,
      "max_profit": 0.70,
      "max_loss": 9.30,
      "breakevens": [587.30],
      "edge_score": 72,
      "liquidity_score": 0.88
    }
  ],
  "metrics": {
    "minutes_to_close": 142,
    "underlying_price": 589.12
  },
  "risk_flags": [],
  "why": ["Most of the day's expected move is consumed and gamma is positive into the close."],
  "avoid_if": ["A late-session catalyst breaks the range or theta has not yet accelerated."],
  "data_quality": { "score": 90, "warnings": [] }
}

Notable Metrics

Regime Values

• pin_risk_positive_gamma
• range_compression
• trend_risk_or_no_setup
• no_same_day_expiry / no_expiry_chain (returned with decision: insufficient_data when no chain exists for the selected expiry)

Errors

About

Zero-DTE extends the pin/positioning read with same-day timing context. On top of max-pain, OI concentration, and dealer levels, it factors in minutes to the close, how much of the day's expected move has already been consumed, and theta acceleration to judge whether the range is likely to compress into the bell.

When the pin is strong enough, it proposes an iron fly on the same-day expiry. Access is gated both by the Growth plan and a separate 0DTE entitlement, and the analysis defaults to today's expiry unless expiry overrides it.

Common Use Cases

• Time same-day entries - act when decision is candidate and regime reads compression, against minutes-to-close and theta acceleration
• Drop in the proposed structure - pull best_structures[] for an iron-fly centred where the data says price will pin
• Stand aside on trend risk - skip premium sales when regime reads trend or decision is no_setup
• Drive intraday alerts - fire only when score and confidence clear a threshold and the pin and timing both line up
• Size on conviction - scale the same-day clip by score and confidence rather than a fixed lot
• Respect the guardrails - honor risk_flags[] and require a clean data_quality before selling into the close

Related

Related reading

• 0DTE SPY: the complete intraday playbook - the same-day mechanics behind the signal
• ML on options data: a quant guide - feed the 0DTE envelope into a systematic model
• Alpha decay: which signals erode - how fast an intraday edge decays

Complementary endpoints

• Strategy Signals overview - the shared decision envelope across every strategy
• Zero-DTE - the raw same-day flow and gamma the signal is built on
• Flow Anomaly - confirm the same-day pin with directional flow tilt