If you trade small-cap or penny stocks, you need real-time SEC filing alerts. Two of the most common tools people compare are DilutionWatch and FlashSEC. They both monitor EDGAR — but they're built for different purposes, with meaningfully different feature sets. This is an honest breakdown of both.
This comparison is written by DilutionWatch. We've tried to be factual and fair. Where we describe FlashSEC's capabilities, we're working from their public documentation and user reports. If anything is inaccurate, contact us.
FlashSEC is a general-purpose SEC filing alert tool. It monitors EDGAR for new filings and sends real-time notifications when a company you're watching files any document. The core value proposition is speed — getting alerts faster than the average EDGAR RSS feed or manual checking. FlashSEC is broad: it covers any filing type for any public company.
DilutionWatch is purpose-built for tracking stock dilution risk. Rather than alerting on every filing, we focus on the 25 filing types that directly indicate dilution activity: shelf registrations, ATM programs, prospectus supplements, PIPE deals, convertible note issuances, warrant exercises, and reverse splits. On top of raw filing alerts, DilutionWatch provides a proprietary DilutionScore (0–100) for 12,000+ tickers, composite risk rankings, active shelf and ATM monitoring, and visual share count trend analysis.
| Feature | DilutionWatch | FlashSEC |
|---|---|---|
| Real-time SEC filing alerts | ✓ Yes | ✓ Yes |
| DilutionScore (composite risk metric) | ✓ Yes — 0–100 score per ticker | ✗ No |
| Dilution-specific filing tracking | ✓ 25 dilution filing types | General — all EDGAR filing types |
| Active ATM program monitoring | ✓ Dedicated tracker | ✗ Not specialized |
| Active shelf registration tracker | ✓ Dedicated tracker with remaining capacity | ✗ Not specialized |
| Reverse split tracker | ✓ Full history + alerts | ✗ Not specialized |
| Warrant tracker | ✓ Dedicated tracker | ✗ Not specialized |
| PIPE deal tracker | ✓ Dedicated tracker | ✗ Not specialized |
| Share count trend visualization | ✓ Per-ticker charts | ✗ No |
| Tickers covered | 12,000+ tickers | All EDGAR filers |
| Alert delivery | Email + browser | Email + browser |
| Free tier | ✓ Yes | Limited |
| Weekly dilution report | ✓ Yes — top movers | ✗ No |
Both tools connect to EDGAR, but they approach it differently.
FlashSEC is designed as a universal EDGAR monitor. If you need alerts on 10-K annual reports, DEF 14A proxy statements, or 13F institutional holdings — general filings that any investor might care about — FlashSEC works well. It's a horizontal tool for broad EDGAR monitoring.
DilutionWatch is vertical. We specifically monitor the filing types that indicate dilution activity:
We also normalize and interpret these filings — not just alerting you that something was filed, but telling you what it means for dilution risk.
This is where the comparison diverges most clearly. FlashSEC is not a dilution tool — it's a filing alert tool. DilutionWatch was built specifically because generic SEC alert tools leave the hardest interpretive work to the user.
When a 424B5 prospectus supplement hits EDGAR at 7:30 AM, FlashSEC will alert you that a filing occurred. DilutionWatch will tell you:
The difference between "a filing occurred" and "here's what this means for your position" is the core value DilutionWatch adds beyond general EDGAR monitoring.
Pricing for both tools is subject to change. Check each site for current rates. DilutionWatch offers a free tier with limited watchlist size and a premium tier with full access to all trackers, DilutionScore data, and real-time alerts. See current DilutionWatch pricing →
For dilution-specific tracking in small-cap and penny stock portfolios, DilutionWatch is the purpose-built choice. FlashSEC is a solid general EDGAR alert tool, but it doesn't interpret or score dilution risk. If dilution is your primary concern, the tools aren't really comparable — they're solving different problems.
Free tier available. Track dilution risk across 12,000+ tickers with real-time SEC filing alerts, DilutionScore, and dedicated trackers for ATM programs, shelves, warrants, and PIPEs.
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