NVO Call Signals
Newest call signals grouped by month and day.
- Total signals
- 1
- Calls
- 1
- Puts
- 0
- Latest signal
- Dec 23, 2025
Astronomer has published 1 NVO call signals based on unusual intraday options activity. These educational records are part of 1 total NVO signals tracked since December 2025, alongside 0 put signals.
Reading a signal
How to read these NVO call signals
Each NVO call signal is a timestamped algorithmic detection of unusual NVO call-option activity. Read it together with its strike, expiration, detection time, and what NVO did afterward. A call signal records which side of the options tape moved; it is not a recommendation to buy or sell calls.
What each NVO call signal includes
- Direction
- Always call here. The NVO archive also keeps put signals separately.
- Strike and expiration
- The exact contract that was flagged. Many NVO signals are same-day, 0DTE contracts.
- Detection time
- US Eastern, to the minute, fixed when the signal fires and never edited afterward.
- NVO price at detection
- The one-minute bar open at that minute. Every outcome in the archive is measured from it.
- Observed movement
- Where NVO went between detection and the recorded close, plus the intraday peak in the signal's direction. Underlying price only, never option profit and loss.
Archive
NVO call signal archive
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.
December 2025
Tuesday, December 23, 2025
Methodology
How these NVO signals are generated
- What a signal is
- A timestamped observation, not an instruction. A quantitative model watches NVO 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
- Consolidated U.S. options-market activity for NVO, evaluated alongside one-minute open/high/low/close bars for the underlying. Published signals preserve the contract, detection time, and underlying price observed at that moment.
- 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 NVO call signals
Astronomer has detected 1 NVO call signals since December 2025.
NVO call signals had the most activity in December 2025, with 1 signals detected.
The most recent NVO call signal was detected on December 23, 2025.