Argus is StockTitan’s stock momentum scanner. It monitors eligible US-listed stocks for New High / New Low, Rapid Move and Volume Spike alerts, with recent news and SEC filing context when available.
This guide explains the alert rules, market coverage and data delays, so you can understand what you are seeing when you use the scanner.
Momentum trading is a strategy where traders observe stocks that are experiencing significant price movement in one direction. The concept involves monitoring trends in the market, though outcomes are never guaranteed and all trading carries risk.
The idea is that a stock already moving hard in one direction, on volume well above its usual level, tends to keep drawing attention and orders for a while, so a trader who sees the move early can plan an entry and an exit around it instead of reacting after the fact. In practice the work breaks into a few steps, and a scanner such as Argus exists to do the first two for you.
Momentum trading looks quite different from buying a stock and holding it for years, and those differences are the reason the tools matter so much. Most traders who work this way would recognize the traits below in their own routine.
The same speed that makes momentum trading attractive is what makes it unforgiving, and anyone considering the style should understand the downside before putting money at risk. A scanner shows you where the movement is, it does not make the decisions for you, and it does not remove any of the risks below.
Thousands of US-listed stocks trade at once and something is always moving, so no person can watch it all. Argus does the watching for you. It follows every eligible US-listed stock through premarket, regular and after hours, reduces each session to a short feed of alerts under three named rules, and places the company’s latest news or SEC filing on the same row as the move when there is one. If you have been looking for a momentum stock screener, or a stock scanner with the news sitting right beside the move, this is what we built.
Your screen shows only the stocks that are moving right now, with the news that may explain the move. These are the parts of the job Argus takes over.
Every alert in the feed carries a Strategy badge that tells you which rule caught it. New High / New Low watches how far a stock has moved from its last close, Rapid Move watches how fast it is moving right now, and Volume Spike watches how much it is trading compared with its normal.
Before any rule alerts, Argus asks two plain questions: is there enough trading in this stock for the move to mean anything, and has this same move already been alerted? The same stock can appear under more than one rule on the same day.
All three are shown by default. In the Filters panel, under Strategy, you can switch any of them off so the feed shows only the kind of movement you want to follow.
This rule measures how far the stock has moved from its reference close: the previous day’s close during premarket and regular hours, and today’s regular-session close once after-hours trading starts.
This rule ignores how big the day’s move is and looks only at how fast the price is moving right now, over about the last five minutes.
This rule watches how much is being traded and ignores the price.Volume alone says nothing about direction, so this is the one badge without an arrow.
| Strategy | Watches | Typical trigger | Has a direction |
|---|---|---|---|
| New High / New Low | Move from the active reference close | 4% or more from the reference close, then again only when the move goes further | Yes, up or down |
| Rapid Move | Speed over about five minutes | 5% or more inside those five minutes, with enough traded to count | Yes, up or down |
| Volume Spike | How much is traded, against the stock’s own normal | Volume far above what this stock usually trades at this time of day | No |
The three rules are evaluated independently, so the same stock can produce different badges within minutes.
A stock that gaps overnight on an earnings release often triggers New High and Rapid Move together, because the same jump is both a fresh high and a fast move.
A stock that trades heavily while going nowhere may produce Volume Spike alone.
None of these combinations is scored, ranked, or rated by Argus, and no combination is presented as better or more reliable than another; the badge exists so you can tell which rule put the row in front of you.
A badge says that a rule was met at that moment, nothing more: it does not predict the next move, and the news beside a row is matched automatically rather than confirmed as the cause.
| Feature | Argus Scanner | Traditional Scanners |
|---|---|---|
| Data Focus | Extending price moves, rapid moves and unusual volume | Complex: Multiple technical indicators |
| Market Coverage | All sessions: Premarket, Regular, After Hours | Often regular hours only |
| News Display | Integrated with price movements | Usually separate or unavailable |
| Alert Logic | Continuous: New highs for gainers, new lows for losers | One time indicator triggers |
| Learning Curve | Minimal: Focus on price action | Steep: Multiple indicators to understand |
| Primary Function | Display momentum stocks with clear direction | Various analytical approaches |
Argus covers eligible US-listed stocks across market-cap sizes, including small-cap and low-float stocks. The scanner follows each trading session at the times below.
Argus starts working as a premarket scanner at 4:00 AM ET, showing the top premarket gainers and decliners as they move. Information shown includes:
During regular hours, Argus displays top momentum stocks today with full market data:
As an after-hours scanner, Argus tracks the after-hours market movers, including:
If all you want is a session’s gainers and losers ranked by percent change, without the alert feed, the premarket movers board and the after-hours movers board keep those lists for you.
Every alert is one row, and the columns are the same in every session. The card explains what a row shows; the volume columns below it are the only ones that need a definition.
A row is one alert on one stock. Read it left to right and you have the stock, the rule that caught it, how far and how fast it moved, how much traded, and the news that may explain it.
The Volume Spike strategy finds unusual trading activity. The displayed volume ratios help you compare stocks, but a ratio alone does not determine whether that strategy fires.
Argus gets used by people with quite different days, from a trader who keeps it open from the premarket open to the after-hours close, to someone who looks at it once in the evening to see what moved. These are the four readers we see most, and what each of them does inside Argus.
A trader who is in the market every session keeps the feed open all day and lets Argus do the watching.
Someone studying how stocks move uses Argus as a record of the day rather than a live screen.
The Free plan shows the scanner with a 15 minute delay, which is enough to learn how movers behave before paying for anything.
Someone with a job to do during the day cannot sit in front of a feed, so they use Argus to catch up fast.
Argus offers different data access levels to suit various needs. Data speed and features do not predict trading outcomes.
Everything in Gold, with 5 saved presets, unlimited favorites and CSV exports that reach back over the past 7 trading days.
Real-time alerts with the whole filter set, 3 saved presets, spoken alerts and the current day of alert history as a CSV file.
Cut the delay to 1 minute and choose which of the three strategies you want to see; the rest of the filter set stays with Gold.
Watch the scanner with a 15 minute delay and no filters, which is enough to see how Argus behaves before you pay for anything.
Argus scans eligible US-listed stocks for three independent conditions: New High / New Low, Rapid Move and Volume Spike.
The 4% threshold applies to New High / New Low only. Rapid Move looks for a move of at least 5% within roughly five minutes, and Volume Spike looks for unusual trading activity against the stock’s own history.
Each strategy also applies liquidity and repeat-alert checks.
The Change column uses the previous trading day’s close during premarket and regular hours. In after-hours it uses today’s regular-session close, so the percentage can change at 4:00 PM ET even if the price does not.
New High / New Low uses this reference for its 4% threshold. The five-minute change uses its own short-window reference.
In market terminology, momentum stocks refers to securities experiencing significant price movement with above average volume.
These are stocks showing strong directional movement, either up or down.
Argus begins displaying top premarket gainers data at 4:00 AM ET when premarket trading opens.
This data continues updating until regular market hours begin at 9:30 AM ET.
Yes, Argus tracks after hour market movers from 4:00 PM to 8:00 PM ET, displaying stocks that continue moving after regular market close.
New High / New Low requires a move of at least 4% from the active reference close and progress beyond the price already alerted in that direction, subject to liquidity and repeat-alert checks.
Those alerted prices carry across session boundaries until the new trading day, while the session alert count resets.
They are earlier alerted prices; the label does not certify the highest or lowest trade of the entire day.
Check the Strategy badge and your membership’s data delay first.
New High / New Low requires progress beyond an earlier alerted price, while Rapid Move and Volume Spike have their own window, history and liquidity checks.
A move visible on a chart can fail those checks, and repeat-alert controls can prevent another row while the same burst continues.
The Top Gainers and Top Losers lists are ordered purely by the size of the percentage move.
The live alert feed is ordered by time, with the newest alert at the top.
Filters change which stocks qualify to appear, but they do not re-rank the list.
Gold/Platinum members receive real-time data updates with no delay. Silver members see data with 1 minute delay. Free members see data with 15 minute delay.
Higher tiers also add the filter set, saved presets, favorite symbols, voice alerts and CSV exports, and an ad-free experience.
No. Argus displays current and historical data only.
It does not predict future movements or provide trading recommendations.
Argus provides market data and information only. Nothing in this service is investment advice, a trading recommendation, or guidance about buying, selling or holding any security, and we are not registered investment advisers or financial professionals. Every trading decision is yours to make and to verify through independent sources.
Trading stocks and other securities involves substantial risk of loss, and fast-moving stocks and extended-hours sessions carry more of it.
Alerts and screening results report that defined criteria were met using information available to the tool at that time; they are not buy, sell, or hold recommendations and do not predict future performance. News correlations are generated automatically and are provided as context. Real time data refers to delivery speed. Data and content are not designed to be the sole basis for any trading decision; verify material information through the linked original sources before acting.
Argus and its operators shall not be liable for any damages arising from use of this service, including but not limited to trading losses, missed opportunities, data errors or delays. The service is provided "as is" without warranties of any kind.
Use of Argus is governed by our Terms of Use.
