Beta
    Education

    Interactive Brokers ForecastTrader Review: The Prediction Market for Serious Traders (2026)

    Interactive Brokers ForecastEx review: $0.01 per trade, 3.14% APY on positions, CFTC-regulated DCM. How ForecastTrader compares to Kalshi and Polymarket for serious traders.

    By PredictionMarkets.usSunday, March 22, 20269 min read

    By the numbers: $0.01 per trade, 3.14% APY on your positions, and 286 million contract pairs traded in a single quarter. Interactive Brokers has quietly built a prediction market unlike anything else in the US.

    Most people think of prediction markets as apps where you bet on elections or sports games. Interactive Brokers had a different vision: a CFTC-regulated exchange where sophisticated traders hedge economic uncertainty, trade on Fed rate decisions, and now even earn daily interest on their positions. The result is ForecastEx — and after a slow start, it's suddenly exploding.

    Here's everything you need to know about whether it belongs in your toolkit.

    What Is ForecastEx (and What's ForecastTrader)?

    Two different names, one ecosystem:

    • ForecastEx is the exchange itself — a fully CFTC-registered Designated Contract Market (DCM) and Derivative Clearing Organization (DCO), a wholly-owned subsidiary of Interactive Brokers Group. (Source: ForecastEx official)
    • ForecastTrader is the trading interface — available at forecasttrader.interactivebrokers.com, and also integrated directly into Interactive Brokers' existing platforms (Trader Workstation, IBKR Desktop, IBKR Mobile, and the Client Portal).

    If you already have an IBKR account, you can access prediction market trading without opening anything new. That's a significant onboarding advantage over standalone platforms.

    What Markets Can You Trade?

    ForecastEx specializes in areas that other prediction market platforms largely ignore: economics, politics, and climate. There are no sports markets — a deliberate choice that has kept ForecastEx out of the regulatory crossfire facing Kalshi and others over state gaming laws.

    Economic indicators (the core of the platform):

    • Federal Reserve target interest rate
    • Consumer Price Index (CPI)
    • Nonfarm payrolls / unemployment rate
    • Retail sales, housing starts, building permits
    • Initial jobless claims
    • US National Debt and Real GDP
    • US Consumer Sentiment

    Financial markets:

    • Bitcoin price thresholds
    • Ethereum price thresholds
    • S&P 500 futures levels
    • Foreign exchange rates

    Climate:

    • Global and US temperature thresholds
    • Atmospheric CO2 levels
    • US electricity generation

    Politics (US residents only):

    • US House and Senate control (2026 midterms)
    • Presidential elections (2028 cycle)
    • Congressional races

    The platform now lists over 10,000 instruments per the Q4 2025 earnings call (Interactive Brokers Q4 2025 earnings, January 20, 2026), with weekly, monthly, quarterly, and annual contract durations.

    What ForecastEx doesn't have: Sports markets, entertainment/pop culture events, international elections beyond major US political questions. If you want NCAA basketball or Super Bowl markets, Kalshi or Polymarket are the better fit.

    How the Contracts Work

    Each ForecastEx forecast contract is a binary yes/no bet on a measurable outcome. Contracts settle at $1.00 if correct, $0.00 if wrong. Prices range from $0.02 to $0.99, directly reflecting probability — a contract at $0.75 implies a 75% chance of that outcome.

    Example: If you want to trade the June Fed decision, you might see a contract: "Will the Federal Reserve target rate exceed 4.5% at the June 2026 FOMC meeting?" priced at $0.38. If you buy Yes at $0.38 and the rate ends up above 4.5%, you receive $1.00 — a profit of $0.62 per contract.

    The trade executes when ForecastEx matches a Yes bid against a No bid. The combined cost equals $1.01: $1.00 payout + the $0.01 fee, split between both sides. (Source: ForecastEx.com)

    One important mechanic: you cannot short sell contracts outright. Instead, to exit a Yes position, you buy the opposing No contract.

    The Fee Structure: Genuinely Competitive

    This is where ForecastEx stands out sharply.

    ForecastEx contracts:

    • Commission: $0 (IBKR charges no commission)
    • Exchange fee: $0.01 per contract (built into the price, paid by both sides)
    • For a $100 equivalent payout (100 contracts): $1 total cost

    Comparison to alternatives (100-contract/$100 payout equivalent):

    PlatformCost per $100 payout
    Interactive Brokers (ForecastEx)$1.00
    Robinhood (via Kalshi)$2.00

    (Source: BrokerChooser fee comparison, February 2026)

    ForecastEx contracts are half the cost of Kalshi-based platforms for equivalent exposure. For high-volume traders or those making large bets on economic data releases, this adds up significantly.

    Additionally, IBKR also offers CME Group event contracts through the same platform — these have different specs ($100 payout, $1 price increments) and are useful for larger institutional-sized positions.

    The Feature No Other Prediction Market Offers: Daily Interest

    Here's the most underrated aspect of ForecastEx: you earn interest on your open positions.

    ForecastEx pays an incentive coupon that accrues daily and is paid monthly, currently at 3.14% APY based on the daily closing market value of your positions. (Source: ForecastTrader platform, forecasttrader.interactivebrokers.com)

    Think about what this means: if you buy a long-duration contract (say, predicting the 2026 Fed rate by year-end) and hold it for months, your position is earning yield the entire time — regardless of how the contract eventually resolves. It functions like a money market fund with a directional view baked in.

    This is especially powerful for longer-term economic contracts where you have conviction but the outcome is months away. No other major US prediction market platform offers this.

    Growth: From 15 Million to 286 Million Pairs in One Quarter

    ForecastEx was launched in August 2024 and spent its first year building infrastructure. The volume numbers from Q3 and Q4 2025 show a sudden inflection:

    • Q3 2025: 15 million contract pairs traded
    • Q4 2025: 286 million contract pairs traded — a 19x increase in a single quarter

    (Source: Interactive Brokers Q4 2025 Earnings Call, January 20, 2026 — per IR Director Nancy Stuebe and Chairman Thomas Peterffy)

    This isn't just retail growth. Q4 2025 saw multiple quoting members added to the exchange, improving liquidity depth. ForecastEx is evolving from a curiosity into a functioning marketplace.

    Meanwhile, IBKR itself added over 1 million net new accounts in 2025 (a company record), bringing total customer accounts to 4.40 million by the end of Q4 2025 — up 32% year-over-year. (Source: IBKR Q4 2025 Earnings Press Release, interactivebrokers.com) Each of those accounts has frictionless access to ForecastEx.

    ForecastEx as a Portfolio Hedging Tool

    Here's the differentiation that sets IBKR apart from every other prediction market: integration with a full brokerage.

    If you hold a technology portfolio and are worried about a surprise Fed rate hike, you could hedge that risk directly in the same account — no stablecoin wallets, no separate logins. Peterffy described this vision explicitly in a Reuters interview: "Our customers will be better informed when they see the forecast predictions, vis-a-vis subjects that are relevant to the companies and industries that they invest in." (Source: Reuters, January 14, 2026)

    This positions ForecastEx as a risk management product, not just a speculation tool. Businesses and professional traders can use it to hedge against CPI surprises, Fed pivots, or climate-driven volatility — all from their existing brokerage account.

    A March 2026 study published on IBKR Campus compared ForecastEx's weather forecast accuracy to the National Weather Service LAMP model across 23 cities over 7 days, finding ForecastEx roughly 20-40% more accurate in the hours leading up to peak temperatures. The author noted this as preliminary evidence that prediction markets may already outperform institutional models for short-term weather forecasting. (Source: IBKR Campus, March 19, 2026)

    The Regulatory Angle: Why "No Sports" Is Smart Strategy

    In March 2026, Kalshi faced criminal charges in Arizona (20 misdemeanor counts, Maricopa County) and a 14-day Temporary Restraining Order in Nevada (Jason Woodbury, First Judicial District Court, March 20, 2026) — both targeting sports, politics, and entertainment event contracts under state gaming law. The regulatory theory in both cases: state gaming frameworks take precedence over CFTC preemption for these categories.

    ForecastEx's deliberate avoidance of sports markets means it faces zero exposure to this attack vector. ForecastEx chairman Thomas Peterffy has been publicly optimistic even as state-level pressure mounts, noting to Reuters that "there doesn't seem to be any barrier" to market expansion and calling himself "incredibly bullish on this space, especially with elections coming this year." (Source: Reuters via whbl.com, January 14, 2026)

    ForecastEx's economic and climate focus keeps it in cleaner regulatory territory while competitors are fighting state AG offices.

    Tax Treatment: The 60/40 Advantage

    ForecastEx contracts are CFTC-regulated derivatives. Many tax professionals argue they qualify for the 60/40 rule under IRC Section 1256: 60% of gains taxed at long-term capital gains rates, 40% at short-term rates — regardless of holding period. (Source: BrokerChooser FAQ)

    Important caveat: The 60/40 treatment for event contracts is actively contested. The CFTC has characterized event contracts as "swaps" under Section 1a(47) of the CEA, which may trigger the Dodd-Frank exclusion under IRC Section 1256(b)(2)(B) and block the 60/40 treatment. The IRS has not issued specific guidance on event contracts. Do not assume 60/40 treatment without consulting a qualified tax advisor. File Form 8275 if taking this position.

    How to Get Started

    1. Open an IBKR account at interactivebrokers.com — no minimum deposit required (Source: tradersunion.com, March 2026)
    2. Enable futures/event contract permissions in account settings (required for ForecastEx trading)
    3. Navigate to ForecastTrader at forecasttrader.interactivebrokers.com, or find it under event contracts within TWS or IBKR Mobile
    4. New accounts receive a $3 credit to start trading forecast contracts immediately (Source: IBKR ForecastTrader)
    5. Trading is available 24 hours a day, six days a week

    Political contracts (US House/Senate, presidential race) are available to US residents only.

    Who ForecastEx Is Right For

    Strong fit:

    • Active traders who already use Interactive Brokers (zero onboarding friction)
    • Investors who want to hedge macro economic risks (Fed rates, inflation, GDP)
    • Anyone who wants to earn yield on directional macro views
    • Professionals who need to hedge economic outcomes for their portfolio or business

    Weaker fit:

    • Casual users who want sports betting-style markets
    • Anyone wanting Polymarket-style international political events
    • Users who prefer a simple mobile-first experience (IBKR's interface has a learning curve)
    • Those who want $5 minimum bets on viral topics (ForecastEx is more serious-minded)

    FAQ

    Is ForecastEx available in all states? ForecastEx operates under federal CFTC registration, not state licensing. Economic and climate contracts are generally available to US residents. Political contracts require US residency. Unlike sports-market platforms currently fighting state AG offices in Nevada and Arizona, ForecastEx has no sports markets and faces no equivalent state-level enforcement actions.

    How is ForecastEx different from Kalshi? Both are CFTC-regulated DCMs, but with different market focus. Kalshi is heavily sports-focused (sports represent approximately 90% of Kalshi's total volume per The Athletic/NYT, March 2026), while ForecastEx specializes in economics, climate, and elections. Fees are similar ($0.01/contract at ForecastEx; $0.02/contract total at Kalshi via Robinhood). ForecastEx's unique edge is the daily interest coupon and full brokerage integration.

    Can I use ForecastEx if I don't have an IBKR account? ForecastEx is technically open to other FCM members, but in practice, IBKR is the primary access point. You'll need an IBKR account.

    What happens to my money if a contract expires worthless? You receive $0 per contract. Your maximum loss equals what you paid. Unlike options, there are no margin calls or unlimited loss scenarios — your downside is capped at your entry cost.

    Are ForecastEx contracts available internationally? Economic and climate contracts can be accessed by eligible customers of Interactive Brokers LLC (US), Interactive Brokers Hong Kong, and Interactive Brokers Singapore. Political/election contracts are US residents only.

    Bottom Line

    Interactive Brokers ForecastEx is the prediction market for people who already trade. It's not trying to compete with Kalshi on sports volume or with Polymarket on crypto-native users. It's building something different: an economic intelligence layer embedded inside the world's largest automated broker.

    The Q4 2025 volume surge (15M → 286M pairs in one quarter) suggests the latent demand was real — it just needed the product to catch up. With 4.40 million IBKR customers who can access ForecastEx with zero additional signup friction, the distribution advantage is enormous.

    If you're an active investor looking to express macro views, hedge economic uncertainty, or simply want to earn 3%+ APY on positions you're holding anyway, ForecastEx is worth a serious look.

    Explore prediction markets at predictionmarkets.us — track ForecastEx alongside Kalshi, Polymarket, and every other US platform in one place.

    Sources & Verification

    Back to Articles

    Related Articles

    Education

    Prediction Market Platforms Beyond Kalshi and Polymarket: The Complete 2026 Guide

    There are 8+ federally regulated prediction market alternatives to Kalshi and Polymarket. Here's every platform US traders can use in 2026, with fees, state availability, and who each one is best for.

    9 minApr 15, 2026
    Education

    What Happens When a Player Gets Injured in a Prediction Market?

    Learn how Kalshi handles player injuries, DNP situations, and game cancellations — and why prediction markets don't void bets the way sportsbooks do.

    8 minApr 15, 2026
    Education

    Why Does My Kalshi Payout Change When I Buy More Contracts?

    Your Kalshi payout changes as you scale up due to order book slippage and the formula-based taker fee. Here's the exact math and how limit orders help you control it.

    9 minApr 14, 2026