Built by traders. For traders.

Why we built this

For decades, deep company research and options analytics were locked behind institutional pricing — Bloomberg terminals, Capital IQ subscriptions, Sell-side research portals. Retail traders got charting tools, scanning apps, and a firehose of noise on social media.

The last three years changed the math. Foundation-model LLMs can synthesize a tearsheet-quality research report in 30 seconds. Cheap cloud infra makes running your own options data warehouse tractable. The gap between "professional workflow" and "retail workflow" is smaller than it's ever been — but nobody had built the product yet.

Erina is that product. One workspace, mobile-first, AI-native, with the depth to actually do the work — not a wrapped GPT chat over a thin ETF screener.

Principles

• Cite everything. If the AI can't back a claim with data, the claim doesn't ship. Every research bullet points to evidence keys; every anomaly row shows the underlying trades.
• Free tier is genuinely useful. Look up any ticker, browse daily research, no card. If the free experience isn't good, the paid tiers are just gates.
• No advice, no upsells. Erina doesn't tell you what to buy. It gives you the raw material to decide, and the tools to structure the trade if you do decide. That's the whole product.
• Honest pricing. Every feature is on the pricing page. AI credits are pass-through — no markup. Cancel from the app in one click.
• Mobile-first. The workspace works on a phone because that's where most people actually check the market.

What Erina is not

• Not a broker. No execution, no custody. Erina is where you decide; your broker is where you fill.
• Not a registered investment adviser. Nothing on Erina is personalized investment advice. See our risk disclosures.
• Not a signal service. No "buy this now, up 40% next week" pitches. Research and setups, not tips.
• Not backing your trades. The AI can be wrong. Verify every material number independently before risking capital.