SPY Call Signals
Latest SPY call signals for State Street SPDR S&P 500 ETF Trust.
SPY identifies State Street SPDR S&P 500 ETF Trust, listed on NYSE Arca. This archive organizes timestamped SPY call signals for educational review. Astronomer has published 52 SPY call signals based on unusual intraday options activity. These educational records are part of 64 total SPY signals tracked since December 2025, alongside 12 put signals.
- Total signals
- 64
- Calls
- 52
- Puts
- 12
- Latest
- Sep 3, 2026
How to read these SPY call signals
Each SPY call signal is a timestamped algorithmic detection of unusual SPY options activity. Read the call or put direction together with its strike, expiration, detection time, and subsequent movement in the underlying. The archive preserves those observations for research; it does not tell visitors whether or when to trade.
For educational purposes only. Signals are observations of market activity — not financial advice or a recommendation to buy or sell any security. Options trading involves substantial risk, including the loss of principal. Do your own research.
SPY call signal archive
June 2026
Thursday, June 4, 2026
Tuesday, June 2, 2026
May 2026
Friday, May 29, 2026
Wednesday, May 27, 2026
Tuesday, May 26, 2026
Thursday, May 21, 2026
Wednesday, May 20, 2026
Monday, May 18, 2026
Thursday, May 14, 2026
Friday, May 8, 2026
How these SPY signals are generated
- What a signal is
- A timestamped observation, not an instruction. A quantitative model watches SPY options activity in real time and records a signal when volume and flow change in a statistically significant way. An AI layer then summarizes and contextualizes the detection; it does not generate it.
- Data sources
- Live SPY options volume and flow, evaluated against one-minute open/high/low/close bars for the underlying. Those same bars are what every historical figure on this page is measured from.
- Timestamps
- Signal times are US Eastern (America/New_York) — the market's own clock — and are not converted to the visitor's local time zone. Underlying bars run from the 9:30 AM ET open to the 4:00 PM ET close.
- Update cadence
- Signals are published as they are detected, during the live window of 9:30 AM to 3:00 PM ET, Monday through Friday, excluding exchange holidays. This archive picks up new detections within about a minute; the aggregate statistics recompute daily.
- How outcomes are measured
- Entry is the one-minute bar at detection; exit is the bar at the observation's recorded close. Every figure is therefore intraday and same-session, never held overnight. All of it tracks the underlying's price movement, not option premiums and not profit and loss — actual option returns depend on quotes, fills, spread, and fees that this archive does not model.
- Known limits
- Signals with no matching intraday bar data are omitted from the statistics, and implausible moves are discarded as bad-data candles. Statistically significant activity describes what happened in the order book; it is not evidence that whoever traded it was informed or correct.
Read how Astronomer works for more on detection and the public archive.
Questions About SPY Call Signals
Astronomer has detected 52 SPY call signals since December 2025.
Across 47 completed SPY call signals since December 2025, the underlying moved in the signal's direction 83.0% of the time. Horizon is intraday and never overnight: entry is the one-minute bar at detection and exit is the bar at the observation's recorded close, both in the same trading session. The denominator counts only signals with both an entry and a close in that session — signals still open, signals with no intraday price data, and implausible bad-data candles are excluded. This measures the underlying's direction only. It is not option profit and loss, and it does not account for premium paid, bid-ask spread, slippage, or fees. Past performance does not guarantee future results.
Across 48 SPY call signals with intraday price data, the underlying moved an average of 0.12% in the signal's direction at its intraday peak. Peak means the most favorable point reached during the session, not the price at any exit — capturing it would require selling at the exact high. The single best observation in the archive is a modeled 44.7% from a call on February 11, 2026 — that is the maximum, not a typical result, and it is derived from the underlying's move using a fixed 110x leverage assumption rather than any option price that was actually quoted or filled. These figures are not measured option profit and loss. Actual option returns require option quotes or fills. Past performance does not guarantee future results.
See the Feb 11, 2026 call signal →SPY call signals had the most activity in May 2026, with 11 signals detected.
The most recent SPY call signal was detected on September 3, 2026.