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Brackish & Co
Tight Lines
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A field guide to prediction markets

Read the market,
then wade in.

Tight Lines pulls live Kalshi markets, teaches you the math the pros use — expected value, Kelly sizing, portfolio allocation — and shows every calculation it makes. Paper trade until it clicks, then cast a real line straight from the dashboard.

No money handled hereEncrypted keysNot shared with Aomori or advertisers
The Catch

Live Kalshi markets

Filtered, sorted, and priced so you can spot mispricing before the tide turns.

Reading the Tide

Math with the work shown

EV, Kelly and portfolio allocation broken down formula-by-formula. Nothing is a black box.

Dry cast → Live cast

Paper trade or real trade

Practice with fake stakes, then plug in your own Kalshi key when you're ready. Your key, your control.

Fair warning

This is educational.

Prediction markets are real money. Tight Lines never touches your Kalshi funds without your explicit key and per-session spending cap — and even then, it's a tool, not a guarantee. Small stakes. Slow water.

Privacy

Your data stays in your boat.

We don't handle money, sell data, or import anything into Aomori or other external systems. Paper trades live only in your account. Live trades route straight through Kalshi with your own key.

No money handled here
Dry cast is paper. Live cast uses your Kalshi key; Kalshi holds the funds.
Encrypted credentials
Your Kalshi key is AES-256-GCM encrypted on the server and never returned to the browser.
No Aomori or ad imports
We don't sync your data to Aomori, CRMs, advertisers, or student-information systems.