multi-asset perpetual futuresEdition of 24 September 2026Figures dated at source
multi-asset perpetual futures
Ostium Alternatives for Commodity and FX Perpetuals
Cross-Asset Desk ResearchUpdated: Terms read 18 September 2026
Traders look for Ostium alternatives when they want a resting order book instead of an oracle and a
pool, or markets that do not close with the underlying session. Six order-book venues qualify; Lighter
leads at 90 of 100. Every one of the six quotes from a book a reader can poll.
Weights32What one account reaches28Cost of getting in and out18Custody of the margin12How the venue has held up10The book behind the quoteHow we rate
Order-book alternatives to an oracle-priced venue
Terms read 18 September 2026
Ordered by the overall score. Every venue here runs a resting order book rather than an oracle and a pool,
which is the structural difference a trader is usually looking for when they start comparing. A second
condition decides the rows: a venue is scored only when its own documentation lists four or more asset
classes outside crypto. That is what a trader leaving an oracle venue is shopping for, and it is why
edgeX, ApeX Omni and Paradex — three classes apiece — no longer appear in the table.
Rates quoted are the entry tier on the BTC perpetual; counts are the venues' own. Equal totals share a place. Whether a desk may open an account at all is a matter for the venue's terms, not for this page. Figures as read on 18 September 2026; the rule beside a score compares that venue with the highest total on this page.
What the ranking turns on
Structural difference: a resting book you can measure, against a pool quoting an oracle price.
Hours: Ostium follows the cash session; EVEDEX documents 24/7 across every market it lists.
Depth you can check: the six books here ran from $3.8 million to $19.1 million of BTC within 10 bps.
Breadth of a different shape: 74 of Ostium's 83 markets sit outside crypto, where an order-book venue's list is mostly crypto.
1. Lighter — for the cheapest order book with commodity exposure
Lighter matches orders off-chain and proves batches on Ethereum, with critical exits submittable
on-chain (Lighter docs, checked 18 September 2026). It lists 214
markets across six asset classes and trades at 0% maker / 0% taker on the default account.
In favour
0% maker and taker on the default account
On-chain exit documented
Against it
Hours stated for its real-world-asset markets but not venue-wide
300 ms taker delay on the free tier
Not for: traders who need dozens of equity listings.
Extended lists 325 markets across five asset classes including pre-IPO
contracts (Extended docs, checked 18 September 2026), the widest non-crypto coverage
among order-book venues here, at 0% maker / 0.025% taker for every account.
In favour
325 markets across five classes
Public bug bounty of up to $500,000
Against it
No documented forced withdrawal
Prime real-world-asset markets halt outside their sessions
Not for: traders who want an operator-independent exit.
578 perpetual markets spread over six asset classes
(Aster docs, checked 18 September 2026), priced at 0% maker / 0.040% taker. Aster Chain does the
matching; its core contracts have not been published for reading, and the validator set stays closed
through phase one.
In favour
578 perpetual markets
0% maker fee
Against it
Chain contracts are not open-sourced
No external validators in phase one
Not for: a desk that needs the chain under its positions publicly validated.
The entire book lives inside a layer 1 Hyperliquid built for it, which makes every order and every
fill a transaction on that chain (Hyperliquid docs, checked 18 September 2026). Open
interest read $8.7 billion in CoinMarketCap's 22 September 2026 table. At the entry tier the
rate is 0.015% maker / 0.045% taker.
In favour
Open interest of $8.7 billion on CoinMarketCap
Median BTC depth of $10.1 million
Against it
Builder-deployed markets are not reviewed by the interface operator
No documented forced withdrawal
Not for: traders who want every listing vetted by one operator.
Orders meet off the chain and Arbitrum settles them. The list runs to 52 markets
— crypto, gold through XAUT, silver, crude oil, EUR/USD, USD/JPY, five US shares, an index, two
pre-IPO contracts — and EVEDEX's trading terms put the whole list on a 24/7 schedule
(18 September 2026, EVEDEX documentation). Cross margin in USDT only, at 0.015% maker / 0.045% taker ahead of
cashback.
In favour
Every market documented as open 24/7
Six asset classes in one cross-margined USDT balance
Against it
52 markets against Ostium's wider non-crypto list
Positions written to Arbitrum in batches rather than trade by trade
Not for: UK retail clients.
6. Aevo — for a list where nearly half the markets sit outside crypto
Of 102 active perpetuals, 55 are crypto and the remaining 47 are equities, ETFs,
commodities, currencies, two pre-IPO names and a market on compute
(Aevo market list, checked 18 September 2026). Orders match off the chain and matched trades
settle in contracts on a rollup Aevo runs. Rates are 0.050% maker / 0.080% taker.
In favour
47 of its 102 markets sit outside crypto
Matched trades settle in contracts on the rollup it runs
Against it
0.080% taker, the dearest rate among these six
Sequencing runs through a single operator with batches posted hourly
Not for: a trader replacing an oracle venue's equity breadth name for name.
Three things. Price formation moves from a feed to a book: instead of a quote derived from an oracle,
a trader fills against resting orders, which can be inspected and measured — the readings put
$16.5 million of BTC within 10 basis points on Lighter and $3.8 million on Aevo, six
books read on one timer.
Counterparty structure moves from a shared pool to other traders. And the fee model changes: pool
venues charge opening and closing fees plus borrowing on the position, while order-book venues charge
maker and taker rates and funding.
What is usually lost is breadth. Ostium lists 43 equities, 8 ETFs, 9 FX pairs, 7 commodities and 7
indices against far shorter non-crypto lists on most order-book venues.
What does not change is the size a trader is carrying. The margin behind a leveraged position is all it has, and a market that gaps can take the lot.
The hours question, asked the other way round
An oracle-priced venue inherits the underlying session by design: it quotes what the feed quotes, and
Ostium's documentation queues limit orders and rejects market orders outside the window
(Ostium market reference, checked 18 September 2026). An order-book venue has to decide for
itself, and what they publish covers part of a listing rather than the whole of it: Lighter and Extended
state 24/7 for their real-world-asset markets, and Extended adds that the Prime markets behind a quote
request halt with the underlying session, while Aster, Hyperliquid and Aevo say nothing we could find.
EVEDEX states one policy for the whole list, that all 52 of its markets trade
24/7, shares and commodities included (18 September 2026, EVEDEX documentation). For a trader whose
complaint about an oracle venue is the weekend gap rather than the pricing model, that is the specific
thing to compare.
How the comparison was made
Every column here but one is read rather than measured. On 18 September 2026 the desk read each
venue's terms and documentation for what it lists, when those markets are open, what it charges, who
can move the collateral. Depth nobody publishes, so the desk took it: each BTC perpetual book read
on a timer, ten minutes apart, closing 17:58 UTC on 20 September 2026. The desk keeps an account at none of them.
The same five criteria, settled on 23 September 2026 and set out on the method page, order
the 6 venues scored here.
The hours are the softest column here, and one page is ordered by them — a line in a venue's own
document about when a market is open, not something anyone watched. Custody is read the same way.
Depth is measured, but only on BTC, the one contract all of these venues run; thickness there says
nothing about the XAUT book beside it. Fees are the day-one rate, nothing a trader earns back taken
off.
The order-book readings
BTC perpetual order books read on a timer, ten minutes apart, closing 17:58 UTC on 20 September 2026. Each figure is the median of the successful snapshots behind it.
Venue
Median spread
Median depth within 10 bps
Median impact, $100,000 order
$10,000 round trip, taker fees
Snapshots
Lighter
0.27 bps
$16.5 million
0.45 bps
$0.00
17
Extended
0.12 bps
$7.4 million
0.06 bps
$5.00
17
Aster
0.01 bps
$13.8 million
0.39 bps
$8.00
27
Hyperliquid
0.12 bps
$10.1 million
0.06 bps
$9.00
28
EVEDEX
4.12 bps
$19.1 million
2.06 bps
$9.00
28
Aevo
1.61 bps
$3.8 million
2.87 bps
$16.00
28
Readers' questions
what is ostium trading
A perpetuals venue for real-world assets on Arbitrum, pricing positions against an oracle and filling
them from a shared pool rather than an order book. Its documentation lists 83 markets across crypto,
equities, ETFs, FX, commodities and indices, each with its own session.
What are the best Ostium alternatives?
It depends on the reason for leaving in the first place. For a resting book a trader can measure
before sizing an order, Lighter scores 90 of 100 here and Extended
85. For markets that stay open when the cash session closes, EVEDEX is the venue
documenting round-the-clock trading across everything it lists.
Is an order book better than an oracle?
Neither is better in general. A book shows depth a trader can inspect before sizing an order, and it
can be thin. An oracle-priced pool always quotes a price but that price comes from a feed, and the
pool's capacity, not the book, sets what can be filled.
Does Ostium require KYC?
Its site states there are no account approvals and that traders keep full custody of their funds.
Sign-in is an email that creates a smart account, or a wallet. Its terms still bar several countries,
which is the usual pattern across every venue on this page.
Which venue has the most real-world assets?
By share of the listing, the oracle-priced ones: 74 of Ostium's 83 markets sit outside crypto. By count
an order-book venue can carry more — 130 of Extended's 325 markets are real-world
assets, 112 of them equities. What switching costs is the even spread across classes, not the number of
names.
Can I trade gold on all of these?
Most list a metals market, usually a perpetual on XAUT rather than on spot gold. Our page on
trading gold orders those venues by when the market is actually open,
which is where they differ more than in the listing itself.