A workspace per decision.
Erina isn't organized around data types — quotes here, charts there, news in a third tab. It's organized around the six moments where a retail portfolio actually needs a decision made, and each one opens on your real numbers.
What do I do with what I own?
Hold, trim, protect, harvest — every decision on the book you already have, in one place.
What is this print actually pricing?
Every position reporting in the next two weeks — expectations set before the print, not after it.
Where should this cash actually go?
Turn dry powder into a staged buy plan — sized against the concentration you already carry.
Should I book, protect, or add?
Winners that ran 20%+ — trim, collar, or ride it through with a defined floor.
What can I safely sell premium against?
Covered calls on names you own, cash-secured puts on names you'd happily own.
Is this name worth owning?
Deep-dive a new ticker or triage the ones you're already tracking.
Readouts above are from the Balanced Growth sample book — the one your account opens on. Research & watchlist is available on the free tier; the other five run on the Solo feature set, which every new account gets for 30 days.
The tools underneath.
The workspaces sit on top of a fuller toolset. You can use these directly whenever you'd rather drive than be walked through.
Ticker lookup
freeQuote, chart, fundamentals, momentum and an options snapshot for any US-listed name.
Radar
soloDaily multi-hit setup lists — names showing several signals at once rather than one.
Ask Erina
soloFull chat with your portfolio and watchlist as context, not a blank-slate assistant.
Theses
soloPlain-English theses with the beliefs and metrics extracted, auto-flagged when they drift.
Options Pulse
proUnusual options flow surfaced as anomalies, with an explanation of what's unusual about it.
Trade Builder
proStructure, strike and expiry selection with the P&L profile drawn before you commit.
Strategy Designer
proMulti-leg construction with a payoff heatmap across strikes and dates.
Strategy Lab
powerBacktest any rule set per ticker, then save the configuration and re-run it.
Scanner
powerPlan-budgeted market-wide hunts for the setups your saved strategies define.
Six workspaces, already populated.
Every one of them runs on a sample book the moment you sign up. Judge the reasoning first; add your own positions when you're convinced.
No credit card · 30-day trial with Solo features · Free tier stays free