Public Brings AI Agents to Prediction Markets With Kalshi Partnership

Public, a New York-based brokerage that describes itself as the world’s first agentic brokerage, announced the launch of AI Agents for Prediction Markets on September 24, 2026, letting members trade event contracts directly or have AI agents trade on their behalf. The product is available to all Public members at launch, with a focus on events that move financial markets.

Members can take positions on real-world outcomes across categories including crypto, commodities, climate, economics, corporate events, markets, indices, tech and science, and politics and elections. Public said members can also use the platform’s AI agents to monitor prediction market probabilities and act in response to changing outcomes, including using prediction market data as a signal for a stock or bond trade elsewhere in a portfolio.

Co-CEO and Co-Founder Leif Abraham said Public is built for investors who take an active hand in constructing their portfolios and that its AI agents let them automate those strategies. “Prediction markets give those agents a new input: real-world events,” Abraham said, adding that members can take a position on an event directly or use the market’s data as the signal that triggers a trade anywhere else in their portfolio.

Example Agent Strategies

The announcement described three automated strategies a member could assign to an agent. In the first, the agent executes a $5,000 market buy of a healthcare stock in the member’s portfolio if the probability of FDA approval for that stock crosses 75 percent. In the second — also shown as a sample prompt on Public’s Prediction Markets product page — the member tells the agent: “If the probability of at least three rate cuts this year rises by 10 percentage points in a single day, alert me and summarize my exposure to bank stocks.” In the third, the agent buys in-the-money put options, spending no more than $2,500 per position, if the probability of a third-quarter earnings miss rises above 60 percent for any stock the member owns.

Agents on the platform monitor event contracts and take actions based on rules written in plain English, ranging from custom alerts to placed trades. The member defines the conditions and actions, then reviews and approves the plan before the agent runs.

Platform Features and Access

Public’s product page describes five tools built around the offering. An event contracts hub lists the most heavily traded contracts by category and displays owned positions and watchlisted contracts in one place. A daily AI market briefing summarizes the events moving prediction markets, from major price shifts and trading activity to upcoming catalysts. Contextual discovery surfaces relevant event contracts directly on asset pages, alongside live market-implied probabilities. An integrated watchlist for tracking a contract’s price and market-implied probability over time is marked as coming soon. Multi-account support lets members trade event contracts from a primary brokerage account using existing buying power, or open and fund a dedicated secondary account for event contracts while managing all assets under a single login.

Prediction markets on Public are accessible around the clock, seven days a week, including weekends and holidays, so members can take positions on breaking news and events while traditional markets are closed. For programmatic use, Public’s open API and Python SDK provide read and write access to a member’s account for running prediction market strategies in code.

The offering is open to anyone eligible for a standard Public brokerage account: members must be at least 18 years old, hold a valid Social Security number, have a legal, permanent U.S. residential address, and be a U.S. citizen, permanent resident, or valid visa holder. Listed tradeable events include Federal Reserve interest rate decisions, CPI and inflation prints, GDP releases, and unemployment numbers; quarterly earnings results, vehicle delivery targets, revenue milestones, and corporate headcount changes; court rulings, antitrust case decisions, regulatory approvals such as FDA drug approvals, and legislative actions; presidential and congressional elections, cabinet confirmations, and international policy shifts; and target price levels for major cryptocurrencies, crude oil benchmarks, and precious metals.

Kalshi Partnership and Risk Disclosures

Public said it has partnered with Kalshi, which it described as the world’s largest prediction market and a CFTC-regulated financial exchange, to offer the prediction markets and execute trades for members. Public launched in 2019 and is headquartered in New York City; the company said it has raised funding from investors including Accel and Tiger Global and that affluent investors have entrusted it with billions in assets.

According to the product page’s disclosures, event contracts are offered by Open to the Public Investing, Inc. and Apex Clearing Corporation, both registered futures commission merchants. The disclosures state that event contract trading involves significant risk and is not appropriate for everyone, and that event contract accounts are not protected by the Securities Investor Protection Corporation.