Guides for people who track the market
Short, specific write-ups on the mechanics of following stocks: alerts, watchlists, and how the apps actually differ. No hot takes, no tips, no investment advice.
·12 min read
The best portfolio tracker apps in 2026
The number that decides your choice is not the price, it is the free holdings cap: 10, 10, 10, 15. Seven apps, every store listing opened, and one vendor that publishes no price anywhere on its own website.
Read it·17 min read
The best 13F and hedge fund tracker apps in 2026
The article ranking first for this query compares eleven tools without a single table and never once mentions mobile. Here are fifteen, with the store checks it skipped and the prices it left unconfirmed.
Read it·13 min read
The best insider trading tracker apps in 2026
Form 4 is due within two business days, which makes this the filing where speed matters most. So it is strange that the four strongest insider tools are websites and only one app advertises real-time alerts.
Read it·7 min read
Generating jOOQ code from Flyway migrations, without a database
Most jOOQ setups point the code generator at a running database. Ours points it at the Flyway migrations instead, which removes a moving part rather than adding one.
Read it·8 min read
Why stock price alerts fail when your app is closed
The alert was set correctly and the notification still never came. The reason is structural, and it comes down to one question: which computer was supposed to check the price?
Read it·13 min read
How to read an SEC Form 4 filing
Almost all of a Form 4's meaning sits in one letter. We parsed every Form 4 the SEC published across ten trading sessions, 12,495 of them, to measure how often each letter shows up and how often the deadline is met.
Read it·11 min read
When companies report earnings, and why the calendar looks the way it does
Why does nobody report a fourth quarter? Why do after-the-bell releases start at 4:05pm rather than 4:00? Both answers are in the rulebooks, and neither is a market convention.
Read it·8 min read
Shipping OneSignal push in a Kotlin Multiplatform app
The SDK calls are two lines. The two lines were never the work. Here is what was, including a FIREBASE_FCM_INIT_ERROR that kept the build green and killed push on every Android device.
Read it·15 min read
The 7 best congress stock tracker apps in 2026
Search for a congress tracker app and Google hands you websites, two ETFs and a listicle. Seven apps whose store listings we actually opened, seven prices with dates on them, and a clearly labelled section for the four that you cannot install.
Read it·8 min read
The STOCK Act's 45-day rule, and how late congress actually files
Everyone quotes the rule as '45 days'. The statute sets a two-part test, and the difference decides whether a given filing was late at all.
Read it·8 min read
How to track congress stock trades (2026)
The filings are free and public, and almost nobody reads them, because the portals are miserable. Here is what is in a disclosure, what is missing, and the three ways to follow them.
Read it·6 min read
How to set stock price alerts that you will actually act on
Most alerts fail for one reason: they fire on noise. Here is how to pick the trigger type, the threshold, and the number of alerts you can actually live with.
Read it·11 min read
The 5 best stock alert apps in 2026
Every app claims alerts. Only two of the six we checked will put a percent-change trigger in writing, two claim a free tier and publish no limit for it, and two charge more inside the app than on their own website.
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