Catalyst · Edge
✍️ Public blog · Updated when something interesting ships · RSS

The Catalyst Edge build log.

Three or four posts a month, written when there's something real to say. Methodology deep-dives, postmortems on misses, and what it actually looks like to ship a Bloomberg-killer alone in 30 days. No engagement-baiting threads, no AI-slop content marketing.

Latest posts

Newest first. Each post links to in-product pages where the math/data is live.

2026-06-03≈ 7 min read

The best free stock scanners on Quora — head-to-head answer

Quora answers rank in Google top-5 for these queries — co-opt by minting our own canonical answer + crosspost to Quora.

Read post →
2026-05-29≈ 9 min read

Trading tools for HN-style devs and quants

Optimize one post for HN front-page submission. Tagged for dev/quant audience. /api/ as the wedge.

Read post →
2026-05-28≈ 7 min read

Philippines free US stock scanner — SEC catalyst alerts

PH retail trader population is huge and growing on GoTrade/eToro. English-speaking SEO win.

Read post →
2026-05-27≈ 7 min read

Singapore retail traders — SEC catalyst scanner

SG retail trader population uses Tiger/moomoo for US stocks. English-speaking, high-income, underserved.

Read post →
2026-05-26≈ 9 min read

Australia retail traders — pre-market US scanner

AU retail trades US opening at 11:30 PM AEDT. Pre-market scanner is morning-coffee tool for them.

Read post →
2026-05-26≈ 9 min read

UK retail traders — how to read SEC filings for US stocks

UK has retail trader culture (HL/AJ Bell). Time-zone arbitrage to US opening is a natural angle.

Read post →
2026-05-26≈ 7 min read

Free SEC catalyst scanner for Indian retail traders

India has 100M+ retail traders. Many use US stocks via INDmoney/Vested. Underserved by US-only content.

Read post →
2026-05-24≈ 9 min read

Crypto stock catalyst calendar — every binary event for BTC-treasury cos

Catalyst calendar for the crypto-equity intersection. Annual evergreen.

Read post →
2026-05-24≈ 9 min read

Spot Bitcoin ETF inflows tracker — IBIT, FBTC, ARKB, BITB

Recurring high-volume kw. ETF flows are leading indicators for BTC price.

Read post →
2026-05-23≈ 9 min read

Bitcoin miner SEC filings — MARA, RIOT, CIFR, IREN tracker

Miner equity catalysts — hash rate updates, financing rounds, S-3 dilution risk. Niche commercial intent.

Read post →
2026-05-23≈ 9 min read

MSTR 8-K Bitcoin purchase alerts — real-time SEC tagging

MSTR community is huge and rabid. They want pre-press-release signal. We have the EDGAR feed.

Read post →
2026-05-23≈ 7 min read

Bitcoin treasury company tracker — every public co holding BTC

Massive crypto audience overlap with our SEC scanner — MSTR/MARA/RIOT/CIFR all file SEC docs. Underexploited niche.

Read post →
2026-05-21≈ 7 min read

Stock alert services compared — audited 2026

Skeptical-buyer kw. Routes to /trust/ audit ledger. Closes the trust objection.

Read post →
2026-05-21≈ 7 min read

Best stock screener for swing trading — head-to-head 2026

Direct comparison kw. Swing trader segment is our primary ICP slice.

Read post →
2026-05-20≈ 9 min read

Stock catalyst calendar 2026 — every binary event

Annually-recurring nav-intent kw. Update annually.

Read post →
2026-05-20≈ 7 min read

Unusual options activity scanner — free + audited

Unusual Whales charges $90/mo. We layer SEC catalyst on top of UOA flow.

Read post →
2026-05-19≈ 7 min read

Pre-market gap scanner with catalyst tags (free)

Direct competitor capture. Gappers + catalyst is the killer combo.

Read post →
2026-05-18≈ 7 min read

13F whale activity — Berkshire, Burry, Ackman in one feed

Whalewisdom charges $40/mo for this. We undercut as free top-of-funnel.

Read post →
2026-05-18≈ 9 min read

Uplistings from OTC to Nasdaq — the catalyst stack

Uplistings are clean event-driven setups. Our scanner catches the 8-A.

Read post →
2026-05-18≈ 7 min read

Pump-and-dump detector — promo-mailer + low-float + S-1 stack

Defensive use case. Builds trust. Drives /trust/ + /scanner/ engagement.

Read post →
2026-05-17≈ 9 min read

SEC comment letters — the regulatory drag signal

Almost no retail watches comment letters. We do. Authority signal.

Read post →
2026-05-16≈ 9 min read

Proxy fight tracker — DEF 14A as a catalyst signal

Proxy fights → M&A → big moves. Niche but ICP-aligned.

Read post →
2026-05-16≈ 7 min read

13G filings — the activist signal everyone misses

13G is less famous than 13D but moves stocks. Free vs $89/mo elsewhere.

Read post →
2026-05-15≈ 9 min read

Stock buyback announcements — the 8-K Item 8.01 signal

Buyback events drive multi-day moves. We tag and rank them automatically.

Read post →
2026-05-15≈ 9 min read

Form D filings — catching private placements before the dilution

Form D is underused. Pure niche moat. Our scanner surfaces it next to ticker.

Read post →
2026-05-11≈ 7 min read

After-hours scanner — catalyst-tagged AH movers, free

AH movers + catalyst is what Benzinga charges $400/mo for. We give it free.

Read post →
2026-05-10≈ 7 min read

Biotech short interest scanner — high-SI bio names, free

/squeeze/ filtered to biotech sector. Underpriced kw. High commercial intent.

Read post →
2026-05-10≈ 9 min read

Earnings whisper trade — the catalyst-stack approach

Pre-earnings searches are pure ICP. We have the EDGAR + Form 4 layer baked in.

Read post →
2026-05-10≈ 9 min read

Convertible note dilution — spotting the at-the-market risk early

Squeeze ICP needs to AVOID dilution traps. We surface S-3/424B5 instantly. Reader-tier conversion.

Read post →
2026-05-09≈ 9 min read

FDA approval calendar — every PDUFA date, scored

High-volume seasonal kw. Re-publish annually. Drives biotech ICP traffic.

Read post →
2026-05-09≈ 9 min read

Low-float runners — the catalyst-tagged daily list

Day-trader segment. Low-float scanner intent matches our catalyst tagging. Tier-1 conversion fuel.

Read post →
2026-05-09≈ 7 min read

Free SEC EDGAR scanner — full-text + catalyst tagging

Bottom-funnel commercial kw. SEC EDGAR direct is hard to use. We give catalyst tagging for free.

Read post →
2026-05-08≈ 7 min read

Live trade audit — every pick, every outcome, public forever

Trust-builder + differentiator. /trust/ is the page nobody else has. Closes Reader → Pro objection.

Read post →
2026-05-08≈ 8 min read

The /jackpot/ list — 4-of-5 signal convergence, audited

Pro-tier conversion driver. Shows audited track record from /trust/. Strong upgrade pull.

Read post →
2026-05-08≈ 9 min read

A free FlyOnTheWall alternative — coverage and latency benchmarked

Direct competitor capture. Bottom-funnel.

Read post →
2026-05-07≈ 9 min read

BamSEC vs EDGAR vs Catalyst Edge — the 3-tool head-to-head

Direct competitor capture. ICP googling "is bamsec worth it" lands here.

Read post →
2026-05-07≈ 11 min read

Free stock screeners 2026 — head-to-head audit

Bottom-funnel comparison kw. We win on catalyst tagging. Updated annually.

Read post →
2026-05-02≈ 7 min read

Gap-up / gap-down trading with catalyst tags

High-volume kw. /scanner/ tags every gap with the underlying catalyst. Educational + tool demo.

Read post →
2026-05-02≈ 7 min read

FAA data for traders — airlines, drones, ops as signals

New FAA spoke. Niche alt-data. Long-tail SEO.

Read post →
2026-05-01≈ 8 min read

Treasury TIC flows — the 30-day USD-rotation signal

New Treasury spoke. Macro-overlay differentiator vs retail-only competitors.

Read post →
2026-05-01≈ 8 min read

CFTC COT report — smart-money bias for equity sectors

New CFTC spoke just shipped. Drives /scanner/ macro-overlay engagement.

Read post →
2026-05-01≈ 7 min read

SEC 13F filings — why the 45-day-late data still works

13F searchers = serious traders. Whalewisdom charges $40/mo. We undercut.

Read post →
2026-04-30≈ 8 min read

FDA PDUFA calendar 2026 — every binary date, scored

Annually-recurring nav-intent kw with consistent organic traffic. Update annually.

Read post →
2026-04-30≈ 10 min read

Clinical trial catalysts — sizing the binary event

Biotech ICP segment. /scanner/ surfaces ClinicalTrials.gov + FDA in same feed. Underpriced kw.

Read post →
2026-04-29≈ 8 min read

A free pre-market scanner that beats Benzinga Pro on catalysts

Free pre-market scanner is the highest-volume bottom-funnel kw in our space. Direct-response post.

Read post →
2026-04-29≈ 7 min read

Borrow rate — the squeeze fuel metric Robinhood doesn't show you

Borrow rate is invisible to most retail. We show it on /squeeze/ free. Educational → tool conversion.

Read post →
2026-04-28≈ 7 min read

FTD fails-to-deliver — what SEC's biweekly file reveals

FTD nerds = squeeze nerds = our ICP. /squeeze/ overlays FTD spike onto borrow rate. Great Reader-tier hook.

Read post →
2026-04-28≈ 10 min read

How to trade SC 13D and 13G filings

Activist disclosure is a clean event-driven setup. /scanner/ surfaces 13Ds in real time — competitor scanners gate this behind $89/mo.

Read post →
2026-04-27≈ 9 min read

Dark pool prints — what FINRA ATS data tells you 4 hours early

Dark-pool searches are high-intent. /darkpool/ is one of our strongest free tools. Drives /preview/ conversions.

Read post →
2026-04-27≈ 8 min read

Form 4 cluster buying — the 3-insider rule

ICP search "form 4 cluster" — beats OpenInsider for de-noised signal. Drives /insiders/ engagement.

Read post →
2026-04-27≈ 9 min read

DCF intrinsic value, explained: the two-stage Damodaran model in 8 minutes

/dcf/ is the Pro-tier upgrade lead. Bloomberg charges $24K/yr for the same calc. This post walks through Damodaran two-stage with one ticker, then routes to /preview/ → /pricing/ → Pro upgrade. High-LTV reader.…

Read post →
2026-04-26≈ 7 min read

The short squeeze setup checklist (DTC × SI × borrow-rate)

Squeeze plays are pure ICP — high-volatility, catalyst-adjacent. The DTC + SI + borrow-rate triple filter is the actual professional read, not the WSB single-metric meme. Shows /squeeze/ as the live screener. Strong…

Read post →
2026-04-26≈ 8 min read

The insider buying signal that actually predicts moves

Insider buying is a high-intent search. Most ICP traders track it via OpenInsider or generic Form 4 feeds, which are noisy. We rank clusters (CEO + CFO same period > 1 random VP) and show why /insiders/ is the…

Read post →
2026-04-26≈ 11 min read

How to trade 8-K filings (the 5 form-type playbook)

Educational + commercial bridge. ICP knows 8-Ks matter but doesn't have a structured playbook. Walks through Items 1.01, 2.02, 5.02, 7.01, 8.01 with 5 real recent setups, then shows how /scanner/ surfaces them by 8 AM…

Read post →
2026-04-26≈ 9 min read

The free SEC catalyst scanner that replaces FlyOnTheWall and BamSEC

ICP top-of-funnel kw. The exact phrase a $50–150K self-directed catalyst trader googles when they're sick of paying $89/mo for FlyOnTheWall but want a real scanner. Lead-magnet post. Positions free tier as the wedge…

Read post →
2026-04-25≈ 5 min read

Why we publish our hit rate (and Bloomberg never will)

Bloomberg, FactSet, and Refinitiv won't publish theirs. Here's why we do — and how to read ours without confusing accuracy for skill.

Read post →
2026-04-23≈ 6 min read

How the cross-border convergence score works

The 4-point composite signal we use to score ADR ↔ home-listing setups in real time. Math, worked example, and the edge cases we deliberately threw out.

Read post →
2026-04-20≈ 7 min read

30 days to build a Bloomberg killer

What 30 days of solo building looks like, phase by phase. The week that everything broke. The first $9 customer. The misses I won't repeat.

Read post →

Subscribe to the blog

Drop your email — you get one note per new post, no drip campaigns. RSS users can grab /blog/rss.xml instead.

~1 email per post RSS feed Community + Discord

You just read the write-up. The screen it came from runs every morning at 3:30 AM ET.

$99 once — read tomorrow's list instead of last week's.

Tier 1 setups touched +2% intraday 49.5% of the time across 329 tracked calls. Baseline for everything else: 40.8%. That is a +8.7 point edge, measured from the NEXT OPEN — the first price you could actually pay, not the prior close. We publish the misses too: https://catalystedgescanner.com/trust/

  1. Click Become a Founding Member below.
  2. Pay $99 once — not monthly, not ever again.
  3. You keep every future release at that price. Tomorrow's ranked list lands at 3:30 AM ET, before the open.

29 of 30 founding seats left. The price goes up when they are gone.

Become a Founding Member — $99 once

One payment. Lifetime access. The free daily picks stay free — this is for people who want the full console. Not buying today? Get tomorrow's ranked list free →