Cboe Adds Mini-Russell 2000 Binary Options to Its Prediction Markets Suite

Cboe's second family of yes-or-no index contracts takes its securities-law answer to event contracts into small caps. The release names no broker, and its fee schedule already lists two more indexes.

• Cboe Global Markets said on 9 November that binary options on the Mini-Russell 2000 Index (MRUT), ticker MRTBW, began trading that day as the latest addition to its prediction markets suite
• Each contract pays $100 or nothing depending on whether MRUT, one tenth the size of the Russell 2000, settles at or above a set level, with P.M.-settled expiries on the same and next trading day
• The contracts are SEC-regulated options cleared through the Options Clearing Corporation and sold through "select retail brokers", none of which the release names
• A Cboe Options fee filing effective 1 November also names binaries on the Dow Jones Industrial Average and the Cboe Magnificent 10 Index, and waives fees for market makers adding liquidity
• The KPI binary options the SEC approved in October are still not trading, and Cboe says earnings metrics will join the suite "soon"

Cboe Takes Its Yes-or-No Index Options to Small Caps

Cboe Global Markets announced the launch of mini-Russell 2000 Index binary options in a release issued on 9 November, saying the contracts began trading that day. MRUT is one tenth the size of the Russell 2000, the benchmark for US small-cap shares.

They pay $100 or $0. The release's example: a position that MRUT will close above 280 pays $100 if the index settles at 280 or higher and nothing if it settles below. Cboe will list P.M.-settled contracts expiring on the same and the next trading day, centrally cleared through the Options Clearing Corporation (OCC). The release says the products are available through select retail brokers and "leverage the protections of the U.S. registered securities trading environment". It does not name a broker or say who is eligible to trade.

Nor does the release name the venue. Cboe Exchange, Inc., which trades as Cboe Options, lists binaries on broad-based indexes under its Rule 4.16, and its fee filing defines MRUT binaries as listed on that exchange. FX News Group reported on 5 October that a Cboe Options notice had set an effective trade date of 26 October; the release gives 9 November as the first day of trading and does not address the earlier date.

JJ Kinahan, Cboe's head of retail expansion and alternative investment products, said the Russell 2000 is "traditionally more volatile than other broad measures", part of why demand for zero-days-to-expiry options on it has grown. Cboe says its traditional Russell 2000 Index options averaged 85 thousand contracts a day in the first three quarters.

The Index Contracts Are Live, the Earnings Contracts Are Not

Cboe introduced the suite, branded Cboe Predicts, on 23 June with binary options on the Mini-S&P 500 Index (XSP) under the tickers XSPBW and XSPBX. Interactive Brokers offered them at launch; that release said Charles Schwab would follow "in the coming months".

Cboe said it would not list the KPI binaries the SEC approved on 13 October until its clearing house, Cboe Clear U.S. (CCUS), was approved. On 3 November a Cboe Options circular told trading permit holders that CCUS had published the disclosure document broker-dealers must give each customer authorised to trade those contracts. The 9 November release says only that the suite "will soon include" certain SEC-regulated corporate earnings metrics.

Cboe Options' fee filing, effective 1 November, says the exchange is now, or shortly expects to be, listing binaries on additional indexes, and names MRUT, the Dow Jones Industrial Average (DJX) and the Cboe Magnificent 10 Index (MGTN) alongside XSP. It cuts the fee for market makers adding liquidity electronically in these binaries from $0.05 a contract to zero, to encourage them to "quote competitively".

The Small-Cap Binary Is a Zero-Day Option With a Simpler Payoff

Kinahan's case rests on zero-days-to-expiry demand, and that is what MRTBW is: a same-day or next-day index option with an all-or-nothing payoff. Calling it a prediction market is marketing as much as description. It does put a fixed maximum loss on short-dated small-cap exposure, which a broker can present as simpler than a spread.

Cboe Is Competing on the Wrapper, Not the Event

Distribution of CFTC-regulated event contracts is shifting fast, as Robinhood's move of most of its prediction flow to Rothera and OG.com shows. Cboe's pitch is different: listed options, OCC clearing and the broker-dealer rulebook, with the broker deciding who may trade. That keeps Cboe away from sports and the state enforcement fights over sports contracts, but it also ties its reach to brokers it has not named for this launch.

Liquidity, Not Approval, Is Now the Constraint

Cboe has not disclosed volume for its XSP binaries; the only figure in the new release is for traditional Russell options. A market-maker fee holiday across a four-index line points to an exchange still building depth. Paying market makers to quote is the usual way to seed a new options class; whether retail order flow follows depends on brokers Cboe has yet to name.

Cboe now offers short-dated yes-or-no contracts on both large and small caps under securities law. Whether that counts as a prediction market business will depend on volumes it has yet to publish.