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OCX
Launch testnet

Trade futures.Trade options.Manage the risk.All on a real exchange.

Central limit order book. SPAN margining. Borrow and lend USDC on the same desk.

Launch testnetExplore the desk
  • SPXDec 20267,530.00-2.43%
  • SPXMar 20277,602.12-2.45%
  • NDXDec 202627,268.25-5.25%
  • RTYDec 20262,807.30-1.54%
  • AAPLDec 2026350.77-1.22%
  • AMDDec 2026423.34-14.58%
  • AMZNDec 2026258.95-3.99%
  • GOOGLDec 2026286.08-2.67%
  • METADec 2026600.08-5.13%
  • MSFTDec 2026543.28-2.11%
  • MUDec 2026700.27-15.00%
  • NVDADec 2026188.18-8.39%
  • TSLADec 2026350.72-10.39%
  • EUR/USDNov 20261.12270-0.14%
  • USD/JPYNov 2026157.90-0.37%
  • XAUTNov 20264,119.12+1.60%

The problem

A derivatives book shouldn’t live on five screens. Quotes in one app, Greeks in a spreadsheet, margin in an email, execution somewhere else. Every switch is a chance to miss the move.

OCX puts the whole book on one desk.

  • SPX 0DTE · 7845 C12.70 / 13.00
  • greeks_v7_FINAL.xlsxEdited 4 min ago
  • Margin call: action requiredPrime broker · 06:02
  • NDX ladderAnother tab, another login
  • “Filled 3 of 5 legs”Desk chat

SPX at-the-money implied volatility by expiry · live from OCX

The desk

One desk for the whole book.

Option chains, futures ladders, charts, positions and live Greeks, arranged the way you trade. Open two chains or five. Add a ladder. Resize everything.

OCX · Pro Trader
Option chain · SPX0DTE · ATM
SPX at-the-money options expiring Nov 5: bid, ask and implied volatility
StrikeTypeBidAskIVΔ
7,525Call34.8535.4044.00%0.54
7,525Put29.2529.7544.00%-0.46
7,550Call23.0023.5041.85%0.41
7,550Put42.0043.0041.85%-0.59
Order bookSPX Dec 2026
SPX Dec 2026 order book: best 0 asks and 1 bids
PriceSize
Spread—
7,522.001
Position cockpitExample
Δ total
+7.1
Γ per 1%
+9.5
Θ per day
-361
Vega
+11
Straddle
41.2
1σ move
±63

Illustrative figures.

  • Live chains

    Bid, ask, IV and delta for SPX and NDX.

  • Central limit order book

    Every future trades on a book you can see.

  • Risk next to the trade

    Greeks by market and expiry, as you trade.

In numbers

Real markets, live today.

  • 16

    futures markets live on testnet

  • 4

    asset classes: index, single-stock, FX and gold

  • 24

    SPX option expiries, from same-day to 2029

  • USDC

    quotes, margins and settles every market

  • 0.50

    USDC per futures lot, falling to 0.15 with volume

  • 1 order

    for every multi-leg option strategy: all legs fill, or none do

How it works

From wallet to settlement, one engine.

  1. 01

    Connect and fund

    Sign in with your wallet and deposit USDC.

  2. 02

    Match

    Each market runs a central limit order book with price-time priority. Post liquidity or take it.

  3. 03

    Structure

    Send multi-leg option strategies as one all-or-none order, or build futures ratios like SPX against NDX.

  4. 04

    Margin

    SPAN portfolio margin scans your futures and options together, so a hedge lowers what you post.

  5. 05

    Settle

    Positions settle at expiry. Withdraw USDC back to your wallet onchain.

Markets

Real markets. Real derivatives.

The indices and companies that move the world, plus FX and gold, as dated futures, with options on SPX and NDX. No perpetuals. No funding payments.

Index futures listed on OCX
MarketExpiryMark24h48-hour trendMultiplier
SPXUS large caps · Dec 2026Dec 20267,530.00-2.43%×5
SPXUS large caps · Mar 2027Mar 20277,602.12-2.45%—
NDXUS tech 100 · Dec 2026Dec 202627,268.25-5.25%×2
RTYUS small caps · Dec 2026Dec 20262,807.30-1.54%×5

  • USDC everywhere

    Every market is quoted, margined and settled in USDC.

  • Trade the spread

    Build futures ratios and pairs, like SPX against NDX or AMD against NVDA.

  • One order, every leg

    Multi-leg option strategies fill all-or-none.

  • Greeks by expiry

    Delta, gamma, theta and vega for each market and expiry, live.

Lend and borrow

Borrow and lend USDC at a fixed rate.

Borrow for 23 hours, a week or a month at a rate set on an order book. The cash counts as margin the moment the loan fills. Or lend idle USDC and earn the rate.

  • Three terms: 23 hours, 1 week and 1 month.
  • The rate is fixed for the term, with simple interest.
  • 1 bp fee to borrow. Nothing at settlement.
  • Loans settle every day at 20:15 UTC.

Funding books

Settles 20:15 UTC

Best rate to borrow and to lend USDC on each funding book, in percent a year
TermBorrowLend
23 hours16.25%No orders
1 week16.25%No orders
1 month16.25%16.15%

Best rate on each book now, per year. OCX testnet.

Risk Position

Your Greeks. Your whole book.

Risk Position rolls every option and future up by market and expiry: delta, gamma, theta, vega, ATM vol, straddle, 1σ move, P&L and margin, live.

  • No spreadsheet rebuild.
  • No separate Greeks terminal.
  • Risk next to the trade.
Risk Position · Example portfolio. Figures are illustrative.
BookΔ optΔ futΔ totalΓΘ / dayVegaStraddle1σ moveP&L
Equity index
SPX total-2.9+10.0+7.1+9.5-361+1141.2±63-83
NDX total—-1.0-1.0————±284+2
Single-stock futures
AAPL total—+10.0+10.0————±4.1+16
NVDA total—-25.0-25.0————±6.8+14

FAQ

Questions, answered.

Testnet live

The desk is open.

Futures, options and your whole risk book, live on testnet now.

Launch testnetTalk to the team