03 · Markets

This part isn't an act.

Before I ever saw this posting, I spent my nights building a prediction-market interface — for no client, no job, no reason except that markets which trade on what's true are the most interesting product surface I know.

A prediction market is a machine that pays people to be honest about the future. That idea has real stakes: better forecasts, less punditry, a price on truth. Kalshi made it legal, regulated, and consumer-grade — which is exactly the version of this future I want to help design.

Below: a live board in Kalshi's language — event contracts priced in cents, Yes and No always summing to a dollar — built from scratch for this page.

Climate$812K vol

Will it rain in NYC tomorrow?

63¢
Yes
Economics$4.8M vol

Fed cuts rates at the September meeting?

67¢
Yes
Economics$2.1M vol

CPI above 3.0% this month?

34¢
Yes
Climate$978K vol

Highest temperature in LA above 90°F this week?

52¢
Yes
Simulated prices — the interaction design is the exhibit.
Design a market

Now you list one.

Market design is product design: a good contract is unambiguous, settle-able, and priced where honest money would open. Write one — the form teaches the rules as you go, and publishing puts it on the board above.

A good market is a question a stranger could settle with a public source — name the who, the what, and the when.
Where traders would look for it.
The moment the answer is knowable.
Where would honest money open? Both sides always sum to $1 — that's the whole game.
Live preview — this is the review step
Economics$1K vol

Your question appears here — make it settle-able?

50¢
Yes

The preview is the real component, not a mockup — what you publish is exactly what you saw. New listings open thin, so yours will sit at your price until traders show up.

How I think about designing for traders

The price is the interface.

On an exchange, one number carries the whole story. Everything else — type, motion, color — exists to make that number instantly legible and completely trustworthy.

Calm is a feature.

Markets move constantly; the UI shouldn't panic with them. Motion that soothes instead of alarms keeps people thinking clearly — which is the whole point of a prediction market.

Trust is pixel-deep.

In regulated finance, a misaligned digit erodes confidence the same way a wrong balance would. Craft isn't cosmetic here — it's the product's credibility.

Designed & built from scratch for this application — React · Next.js · TypeScript · Framer Motion. Source ↗claytonryanyoung@gmail.com