Catalyst alerts for small-cap stocks.
PennyPop watches SEC filings, press releases, earnings dates and unusual trading across every US stock under $20, and pops a desktop notification the moment something lands, with a plain-English reason for every alert.
- ACME80GlobeNewswireAcme Biotherapeutics announces FDA approval of ACM-101Why: fda_approval
- ACME80MarketUnusual volume: 14.2x normal for this time of dayWhy: volume_spike
- TINY70SEC424B5: offering prospectus (pricing)Why: share_offering
- VLTG70GlobeNewswireVoltgate Power announces 1-for-25 reverse stock splitWhy: reverse_split
- SLRK55SEC8-K 1.01: material agreementWhy: material_agreement
PennyPop is an information tool, not investment advice. It reports and scores public information; it does not recommend buying or selling any security or predict prices. Small-cap and penny stocks are highly volatile and can lose most or all of their value. Data comes from third-party sources and may be delayed, incomplete or wrong; always check the original filing or release. PennyPop is not affiliated with or endorsed by the SEC, Finnhub, Yahoo, GlobeNewswire or PR Newswire.
The news breaks in many places. PennyPop watches them all.
An 8-K on the SEC's website, a press release on a newswire, a volume spike before anyone has written a headline. PennyPop keeps watch from your system tray so you don't need a dozen tabs open.
- A direction: bullish, bearish or neutral.
- An impact score from 0 to 100, based on how often that type of event moves small caps.
- The reason: exactly which rule fired, such as "FDA approval", "share offering" or "14x normal volume".
Built to be careful.
SEC filings within seconds
New 8-Ks, share offerings, insider Form 4s, 13D stakes and delisting notices, checked every 20 seconds.
Press releases as they cross the wire
GlobeNewswire and PR Newswire, matched to tickers automatically.
Every stock under $20, listed for you
Sortable and searchable; one click adds any name to your watchlist.
Unusual volume and sharp moves
Volume compared with normal for that time of day, plus big daily and 15-minute moves.
Upcoming events calendar
Earnings dates for every stock under $20, plus your own catalyst dates, with countdown alerts.
Scored and explained
Bullish or bearish, a 0 to 100 impact score and the exact rule that triggered every alert.
Bad news isn't hidden
Dilution, reverse splits, delisting notices and going-concern warnings are flagged clearly.
Quiet by design
No first-run flood, no duplicates, no alerts from stale data; you set the popup threshold.
Free data, private by default
Public sources and your own free key. Everything stays on your PC, with no usage tracking.
Bad news gets flagged too.
Illustrative screenshots: demo data, fictional companies.
How it works.
- Install
Add two free details: your email (the SEC requires one; it only goes to sec.gov) and a free Finnhub API key.
- Add tickers
Or browse the automatic Under-$20 list and star the ones you like.
- Let it run
PennyPop sits in your system tray and notifies you when something happens.
What it watches
| Source | What | How often |
|---|---|---|
| SEC EDGAR | Every new filing for watched stocks and the Under-$20 list | every 20 seconds |
| GlobeNewswire, PR Newswire | Press releases | every 60 seconds |
| Finnhub (your free key) | Company news and the earnings calendar | about every minute |
| Free public price data | Prices, volume and the Under-$20 list | every 5 minutes in market hours |
| You | FDA dates, votes, lock-ups and other events | countdown alerts |
What you'll need
- Windows
- 10 or 11, 64-bit. No administrator rights needed.
- Internet
- For the free filing, newswire and price data.
- Finnhub key
- Free, from finnhub.io, for company news and earnings dates.
- The SEC requires one for automated data access.
Questions
Does PennyPop predict which stocks will go up?
No. It tells you quickly when something has happened and how significant that type of event has historically been. What you do with that is your decision.
Is the data real-time?
SEC filings are checked every 20 seconds and press releases every minute. Prices come from free sources and can be a few minutes behind live exchange data.
Do I need to pay for data?
No. PennyPop uses free public sources. You need a free Finnhub API key for news and earnings dates.
Which markets does it cover?
US-listed stocks (Nasdaq, NYSE, NYSE American). OTC stocks can be included in the Under-$20 list from Settings.
Will it flood me with notifications?
No. Old news never pops up, duplicates are merged, and you set the minimum score for a popup. Stocks outside your watchlist need a higher score.
Does it send my data anywhere?
Your watchlist and settings stay on your PC. Your email is only sent to the SEC, your Finnhub key only to Finnhub, and PennyPop sends no usage data.
Mac or Linux?
Windows only for now.
Coming soon.
PennyPop is being finished now. Leave your email and we'll tell you the day it's ready.