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Perps · RWA

Ostium

Perpetual exposure to FX, metals, energy and other markets.

Volume · 30d
—

Only a dated manual snapshot (2026-09-22) exists; current figures are in the market-position section.

Open interest
$8.84M

Fetched 08 Nov 2026 · 05:00 UTC

Source and scope

DefiLlama open-interest overview, defillamaId 4932 slug 'ostium'; total24h only; no per-protocol timestamp supplied · Open source ↗

User fees · 30d
$54.65K

Fetched 08 Nov 2026 · 05:00 UTC

Source and scope

DefiLlama fees overview (dataType=dailyFees), defillamaId 4932 slug 'ostium', total30d · Open source ↗

Attributed holder flow · 30d
—

No comparable observation

Observed token price
—

No comparable observation

Observed FDV
—

No comparable observation

TOKEN MARKET / DOCUMENTED VENUES

Where the token trades

No verified live protocol token is on file.

Token market not applicable in this edition · Research checked 2026-09-22. A dated listing notice does not confirm current pair availability or regional access; check the venue before trading.

Token rightsNo verified tokenStated terms, purchases and burns are separate evidence steps.Supply and unlocksNo verified tokenMarket cap, circulating and total supply, and unlock notes.Data gapsSource and coverage limitsUnknown stays unknown; a missing figure is never shown as zero.
MARKET POSITION · ALL PERP DEXS

#30 of 50 by open interest Declining

Open interest $8.71M (0.1% of tracked DEX open interest), 30-day OI change -39.6%, 30-day fee change -49.0%. Compare with all perp DEXs ↗

Directory OI capture: 08 Nov 2026 · 00:25 UTC. Source: DefiLlama open-interest overview.

KEY FACTS

Ostium at a glance

Launched
2024-10 source ↗
detailspublic mainnet Oct 2024 (private mainnet from Aug 2024)
Trading fees (base tier)
0.06% per trade source ↗
detailsno maker/taker model: one-time opening fee by pair, live 1-6 bps (crypto 6, stocks 3, ETFs 3, forex 2-5, commodities 2-5, indices 1-3) per the docs' live fee table; docs prose still says 3-10 bps. Plus $0.10 oracle fee (refunded on full close) and rollover; no closing fee except early-close fee (profitable close <15s, 40->0 bps)
Maximum leverage
200× source ↗
detailsmajor FX pairs (EUR/USD, GBP/USD, USD/CAD, USD/CHF); docs also list BTC/ETH and US500/US30 at 200x, but on-chain group caps show crypto and indices at 100x
Perp markets
About 82 · includes stocks, commodities or FX source ↗
details35 stocks, 8 ETFs, commodities, indices, FX, 9 crypto
Collateral
USDC (Arbitrum) source ↗
KYC
No KYC step in onboarding source ↗
detailsconnect via email login (Privy smart account) or Web3 wallet; no identity step described
Restricted regions
United States, United Kingdom, European Union, Philippines, US comprehensively sanctioned jurisdictions incl. Iran, Syria, Cuba, North Korea, Crimea, Donetsk, Luhansk source ↗
Audits
Zellic (Feb 2024, Nov 2025); Three Sigma (Feb-Mar 2024); Pashov Audit Group (Jan 2025, Apr 2025, Jan 2026) source ↗
Incidents
2026-07-15: LP (OLP) vault exploited for 23,752,746 USDC via compromised off-chain price-feed infrastructure; trader collateral unaffected; trading resumed 2026-07-23; recovery plan for OLP holders source ↗
Points program
Live source ↗
detailslast official points promotion seen 2026-07-14 ('2X points on BRENT, WTI, US500, XAU & USD/JPY'); app still has a 'Points & Rewards' page; status after the 2026-07-15 OLP exploit not restated in official posts
Referral program
Yes; no fixed benefit for the referred trader is confirmed source ↗

From Ostium’s own documentation, terms, API or official posts, checked 08 Oct 2026. Terms change; confirm on the venue before trading. “Not verified yet” means we could not confirm it from an official source.

TEAM AND TRACK RECORD

Who is behind Ostium

6 of 7 checks confirmed

Founders

Funding

Affiliation: Services provided by Ostium Foundation; software developed by Ostium Labs Co. (per Terms of Use) source ↗

A checklist of facts we could verify from official sources (investor announcements and, for funding only, labelled news reports). “–” means not verified, not “no”. It is not a safety rating and not investment advice: strong backers do not prevent losses, and anonymous teams are common in DeFi.

FROM THE TEAM

Latest from Ostium

No blog feed is published; follow the official channels below.

Headlines and links from the venue’s own blog feed, checked daily; channels verified as linked from the venue’s website. Beware of look-alike accounts.

IS IT GROWING?

Ostium trend: Declining

0 metric(s) up, 1 down, 0 without a material change. The label counts metric directions; it is not a score and not investment advice.

Rank by open interest: #30 now · #33 30 days ago (among venues reporting that day)

Metric30 days90 daysCoverageReading
Open interest-39.6%-88.1%100%Materially weakening (30d and 90d agree)
User fees-49.0%-86.3%97%Base too small for a reliable direction
Trading volume———Not enough daily history yet

Thresholds: open interest ±25%, fees ±30%, volume ±40% over 30 days; the 90-day move must agree at half the threshold. Incentive campaigns can lift activity temporarily.

HISTORY

Activity over time

Open interest · daily

DefiLlama daily open interest · 180 days · 11 May 2026 – 06 Nov 2026

$8.71M
$345.98M$0.002026-05-112026-11-062026-05-11 · $120.41M2026-05-12 · $127.12M2026-05-13 · $148.65M2026-05-14 · $108.63M2026-05-15 · $99.53M2026-05-16 · $98.46M2026-05-17 · $91.36M2026-05-18 · $91.69M2026-05-19 · $210.31M2026-05-20 · $183.50M2026-05-21 · $118.28M2026-05-22 · $94.47M2026-05-23 · $97.25M2026-05-24 · $91.85M2026-05-25 · $66.10M2026-05-26 · $84.86M2026-05-27 · $102.36M2026-05-28 · $137.73M2026-05-29 · $162.16M2026-05-30 · $161.95M2026-05-31 · $163.24M2026-06-01 · $210.03M2026-06-02 · $200.60M2026-06-03 · $146.36M2026-06-04 · $133.55M2026-06-05 · $151.14M2026-06-06 · $151.72M2026-06-07 · $150.92M2026-06-08 · $181.25M2026-06-09 · $142.39M2026-06-10 · $145.99M2026-06-11 · $223.06M2026-06-12 · $212.04M2026-06-13 · $212.35M2026-06-14 · $220.09M2026-06-15 · $245.27M2026-06-16 · $264.92M2026-06-17 · $220.76M2026-06-18 · $234.51M2026-06-19 · $235.81M2026-06-20 · $236.08M2026-06-21 · $233.92M2026-06-22 · $227.15M2026-06-23 · $228.24M2026-06-24 · $189.03M2026-06-25 · $154.29M2026-06-26 · $158.29M2026-06-27 · $158.30M2026-06-28 · $162.98M2026-06-29 · $162.51M2026-06-30 · $204.45M2026-07-01 · $163.86M2026-07-02 · $157.07M2026-07-03 · $164.80M2026-07-04 · $164.75M2026-07-05 · $164.23M2026-07-06 · $160.13M2026-07-07 · $152.80M2026-07-08 · $154.95M2026-07-09 · $320.91M2026-07-10 · $285.60M2026-07-11 · $285.59M2026-07-12 · $285.49M2026-07-13 · $316.69M2026-07-14 · $316.11M2026-07-15 · $269.60M2026-07-16 · $269.60M2026-07-17 · $269.60M2026-07-18 · $269.60M2026-07-19 · $269.60M2026-07-20 · $269.60M2026-07-21 · $269.60M2026-07-22 · $269.60M2026-07-23 · $53.11M2026-07-24 · $57.43M2026-07-25 · $56.47M2026-07-26 · $63.47M2026-07-27 · $44.82M2026-07-28 · $43.45M2026-07-29 · $46.26M2026-07-30 · $38.99M2026-07-31 · $38.50M2026-08-01 · $38.50M2026-08-02 · $38.78M2026-08-03 · $37.56M2026-08-04 · $38.84M2026-08-05 · $47.36M2026-08-06 · $38.08M2026-08-07 · $39.16M2026-08-08 · $39.16M2026-08-09 · $39.16M2026-08-10 · $40.61M2026-08-11 · $38.40M2026-08-12 · $38.55M2026-08-13 · $38.89M2026-08-14 · $37.65M2026-08-15 · $37.66M2026-08-16 · $37.67M2026-08-17 · $36.76M2026-08-18 · $36.88M2026-08-19 · $40.85M2026-08-20 · $50.31M2026-08-21 · $37.10M2026-08-22 · $52.94M2026-08-23 · $37.26M2026-08-24 · $35.49M2026-08-25 · $35.79M2026-08-26 · $34.54M2026-08-27 · $33.06M2026-08-28 · $32.74M2026-08-29 · $32.95M2026-08-30 · $32.45M2026-08-31 · $26.02M2026-09-01 · $25.75M2026-09-02 · $25.04M2026-09-03 · $24.24M2026-09-04 · $22.61M2026-09-05 · $22.61M2026-09-06 · $22.81M2026-09-07 · $22.92M2026-09-08 · $22.39M2026-09-09 · $19.30M2026-09-10 · $18.37M2026-09-11 · $20.90M2026-09-12 · $20.90M2026-09-13 · $21.09M2026-09-14 · $21.90M2026-09-15 · $17.89M2026-09-16 · $17.37M2026-09-17 · $15.79M2026-09-18 · $13.08M2026-09-19 · $13.05M2026-09-20 · $12.70M2026-09-21 · $12.90M2026-09-22 · $12.83M2026-09-23 · $13.72M2026-09-24 · $13.44M2026-09-25 · $12.67M2026-09-26 · $12.61M2026-09-27 · $12.65M2026-09-28 · $10.56M2026-09-29 · $10.40M2026-09-30 · $10.34M2026-10-01 · $10.30M2026-10-02 · $10.73M2026-10-03 · $10.78M2026-10-04 · $10.77M2026-10-05 · $9.73M2026-10-06 · $8.92M2026-10-07 · $8.85M2026-10-08 · $8.85M2026-10-09 · $8.59M2026-10-10 · $8.60M2026-10-11 · $8.59M2026-10-12 · $7.55M2026-10-13 · $9.53M2026-10-14 · $8.92M2026-10-15 · $8.73M2026-10-16 · $9.19M2026-10-17 · $9.22M2026-10-18 · $9.14M2026-10-19 · $8.75M2026-10-20 · $8.85M2026-10-21 · $9.15M2026-10-22 · $8.58M2026-10-23 · $7.96M2026-10-24 · $8.03M2026-10-25 · $8.01M2026-10-26 · $8.59M2026-10-27 · $8.50M2026-10-28 · $8.61M2026-10-29 · $8.47M2026-10-30 · $7.64M2026-10-31 · $7.66M2026-11-01 · $7.72M2026-11-02 · $9.10M2026-11-03 · $9.16M2026-11-04 · $8.65M2026-11-05 · $8.64M2026-11-06 · $8.71M

Gaps are not joined. The scale starts near the series minimum, not at zero.

Ostium: common questions

What is Ostium’s open interest?

Ostium had $8.71M of open interest according to DefiLlama on 08 Nov 2026 · 00:25 UTC, ranking #30 of 50 perp DEXs we track by open interest. That is 0.1% of the combined open interest of the tracked venues.

How much do traders pay in fees on Ostium?

Traders paid $58.74K in fees over the last 30 days according to DefiLlama, -49.0% compared with the previous 30 days.

Is Ostium growing?

Our current reading is “Declining”. Average open interest over the last 30 days changed -39.6% versus the prior 30 days. The reading updates daily and requires sufficient history and a minimum base.

Does Ostium have a token?

We have not verified a tradable Ostium token. Beware of look-alike tokens using the name.

What are Ostium’s trading fees?

0.06% per trade at the base tier, according to Ostium’s fee documentation. Higher-volume tiers and promotions can differ.

What is the maximum leverage on Ostium?

Up to 200× on some markets, according to Ostium’s documentation. Most markets allow less.

Does Ostium require KYC?

No kyc step in onboarding, based on Ostium’s terms and sign-up flow. Access rules can change by country.

Is there a Ostium airdrop or points program?

We have not found a confirmed Ostium token or airdrop in official sources. A points program is live according to Ostium’s documentation; points carry no guaranteed value or token claim. Beware of fake “claim” sites; use only links from the official website.

Is Ostium safe?

No exchange is risk-free. Ostium confirms 6 of our 7 track-record checks (named team, founder experience, funding, audit, incident history, time live, data history). Leverage can liquidate your collateral regardless of the venue. Read the audits and incidents above before depositing.

Has Ostium been audited?

Ostium lists audits by Zellic (Feb 2024, Nov 2025); Three Sigma (Feb-Mar 2024); Pashov Audit Group (Jan 2025, Apr 2025, Jan 2026), according to its documentation. An audit covers specific contracts at a point in time; it does not guarantee that funds are safe.

Has Ostium had security incidents?

2026-07-15: LP (OLP) vault exploited for 23,752,746 USDC via compromised off-chain price-feed infrastructure; trader collateral unaffected; trading resumed 2026-07-23; recovery plan for OLP holders (from Ostium’s own posts or docs).

Does Ostium have a referral program?

Yes; no fixed benefit for the referred trader is confirmed.

TOKEN MECHANISM / VERIFICATION

Follow the money

Documented: No verified token-holder distribution model is included in this edition.

Execution: A stated rule, a reported purchase and a completed burn or distribution are distinct evidence steps. This profile does not add them as separate holder benefits.

Documentation pending · Scope and timing must be reconciled with observed transactions.

SUPPLY / DILUTION EVIDENCE

Supply and unlocks

Circulating supply is labelled by source convention. Vesting is not selling.

No verified live token is on file. Market supply figures are not expected; any announced token terms remain separate from a traded token.

Market cap
—

No comparable observation

Observed FDV
—

No comparable observation

Circulating supply
—

No comparable observation

Total supply
—

No comparable observation

Unlocks and supply

The documentation reviewed does not establish a live protocol token or a verified unlock calendar. No token-price scenario is published.

Source ↗

DATA GAPS

What is still unknown

Unknown stays unknown; a missing figure is never shown as zero. This list is built from the figures and documented fields on this page; other limits are described in the sections around it and in the methodology.

Figures

  • Source time unknownVenue volume · 24h, Volume · 30d, Open interest, User fees · 30d, Protocol revenue · 30d
  • Stale source dataUser fees · 90d, Protocol revenue · 90d

Documentation and terms

  • ListingsSource pending
  • TokenNo verified live token on file; token market figures are not expected here
EVIDENCE BOUNDARY

What these numbers establish

Trading activity, fees and token-related flows use different sources and product scopes. One observation does not prove sustained growth; a fee-allocation rule is not proof of execution. Parent and child streams must not be added. Unknown values remain unknown, never zero.

Price and FDV above are market observations, not our estimate of what the token should cost.

Research library ↗
More activity and income metrics
Venue volume · 24h
—

Only a dated manual snapshot (2026-09-22) exists; current figures are in the market-position section.

TVL
$2.27M

Observed 08 Nov 2026 · 03:54 UTC

Source and scope

DefiLlama top-level protocol TVL; component methodology not supplied · Open source ↗

User fees · 90d
$980.57K

Stale source data · observed 06 Nov 2026 · 00:00 UTC; checked 07 Nov 2026 · 14:02 UTC

Source and scope

DefiLlama fees overview (dataType=dailyFees), defillamaId 4932 slug 'ostium', sum of 90 complete UTC daily values; provider chart reconciled to reported total30d · Open source ↗

Protocol revenue · 30d
$19.51K

Fetched 08 Nov 2026 · 05:00 UTC

Source and scope

DefiLlama fees overview (dataType=dailyRevenue), defillamaId 4932 slug 'ostium', total30d · Open source ↗

Protocol revenue · 90d
$596.98K

Stale source data · observed 06 Nov 2026 · 00:00 UTC; checked 07 Nov 2026 · 14:02 UTC

Source and scope

DefiLlama fees overview (dataType=dailyRevenue), defillamaId 4932 slug 'ostium', sum of 90 complete UTC daily values; provider chart reconciled to reported total30d · Open source ↗

Attributed holder flow · 90d
—

No comparable observation

Project context

Source review: 2026-09-22

Team

Ostium's company release names Kaledora Kiernan-Linn as co-founder and CEO, and describes Kaledora and Marco as Harvard classmates. This edition does not assign a subjective team score or infer further biographies.

Source ↗

Investors

Ostium reported a $20 million Series A led by General Catalyst and Jump Crypto. The announcement also describes a preceding $4 million strategic round, bringing total capital raised to $27.8 million. These are company financing amounts, not a protocol-token valuation.

Source ↗

Buybacks and burns

No verified token-holder distribution model is included in this edition.

Source pending

Token rights

The product offers synthetic exposure to real-world prices on Arbitrum. Positions are not redeemable claims on the referenced assets.

Source ↗

UNDERSTAND THE PROJECT

How Ostium works

Ostium’s product thesis is access to traditional-market price exposure through blockchain-based collateral.

Read full explanationClose explanation

Choose a protocol overview or a detailed introduction to the trading concepts behind it.

Ostium overview

Ostium’s product thesis is access to traditional-market price exposure through blockchain-based collateral. Its focus makes reference pricing, market calendars, collateral liquidity and the handling of sharp price gaps central to the analysis.

Product adoption, company financing and a potential protocol token are separate subjects. This edition evaluates documented platform activity without assigning a token price where a live protocol token has not been verified.

What it does
A trading platform focused on price exposure to stocks, currencies, metals and other markets, with trades settled on Arbitrum and directional exposure hedged offchain.
A simple example
An oil position follows a quoted oil price; it does not give you barrels of oil. The trade's result depends on the oracle, leverage and settlement rules.
What the token means
No live Ostium platform token has been verified for this edition. OLP does exist, but it is a share of the USDC liquidity-provider vault, not a protocol governance token. Points are neither of those.
Where the money comes from
Traders pay opening fees. Ostium says 30% currently flows to the OLP vault; that allocation can change. Company fundraising is separate from trading fees and vault earnings.
What to watch out for
Market closures, oracle prices, offchain hedging, smart contracts and withdrawal timing all matter. The OLP vault has a junior loss buffer but deposits are not insured.

Ostium explained, step by step

What you are actually trading

On Ostium, a position linked to oil or a currency pair is a contract whose result follows a reference price under the platform’s rules. It does not give you delivery of oil or ownership of a conventional brokerage asset. You supply collateral to support that contract.

This difference matters because the real-world reference market and the blockchain can follow different schedules. A blockchain being available on a weekend does not mean the underlying market is continuously producing executable prices.

A position, collateral and leverage

A position is an open trade whose value changes with a market. A long benefits from a price rise; a short benefits from a fall, before costs. Collateral is the money supporting the trade. It is different from the position’s notional value, which is the amount of market exposure.

Leverage expresses the relationship between exposure and collateral. It magnifies both gains and losses relative to the money supporting the position. A perpetual generally has no scheduled expiry, but this does not mean you can hold it indefinitely: ongoing costs, liquidation and the venue’s market rules still apply.

Follow one hypothetical trade from entry to exit

Imagine a dollar-settled, linear contract with $100 of collateral and $500 of exposure: 5× leverage. Suppose the reference asset costs $100 when a long position opens. The position represents five units. If you later close all five at $102, the gross gain is 5 × $2 = $10. If you close at $98 instead, the gross loss is $10. A 2% market move therefore changes the original collateral by 10%, before costs.

Now assume an illustrative 0.05% trading fee on each side. Entry costs $0.25; the profitable exit at a $510 position value costs $0.255. The $10 gross gain becomes $9.495 before funding, spread, slippage and network costs. These numbers teach the arithmetic; they are not this platform’s fee schedule or a suggested trade.

While the position remains open, the displayed profit or loss is unrealized and can change. Closing it realizes the trading result. A profitable price move can still produce a disappointing net result if the cost of entering, holding and exiting is high.

Why a position can close before you choose to exit

A venue requires a minimum amount of remaining equity to support a position. If equity falls below that maintenance requirement, liquidation can close the position automatically. This can happen before your collateral reaches zero. The price used for this test may differ from the last trade shown on a chart.

Where available, isolated margin separates collateral for a position; cross margin can share it across positions. A loss in one cross-margined trade can affect the rest of the account. Exact boundaries and liquidation rules differ by venue. A stop order is also different from liquidation: its execution and final price depend on its order type, available liquidity and market conditions.

The platform and its token are different decisions

No live Ostium platform token has been verified for this edition. OLP does exist, but it is a share of the USDC liquidity-provider vault, not a protocol governance token. Points are neither of those.

A points program, if offered, is governed by its own terms. It is not automatically a liquid token or a claim on the company. No verified live protocol token is assumed in this edition.

The costs that do not fit into the headline fee

The spread is the gap between quoted buying and selling prices. Slippage is the difference between an expected execution price and the price actually obtained. A market order seeks immediate execution; a limit order sets an acceptable price but might never fill. A large position in a thin market can be expensive to close even when the displayed trading fee is low.

Many perpetual markets also use funding: periodic transfers between long and short positions that help align the contract with its reference market. The paying side and rate can change. Other products use different financing or holding-cost mechanisms. Check the selected contract’s current rules, payment interval and full cost preview; do not assume the same formula applies everywhere.

How to use the research below

First identify the contract, accepted collateral, pricing method and exit conditions. Then distinguish product activity from token economics. Volume counts trading over a period; open interest measures positions still open at a point in time. Neither is the platform’s profit. Fees, protocol revenue and value reaching token holders describe different flows.

Our metrics and research below help compare those questions. Their timestamps and scope matter: a recently fetched value may not have a source observation time. The explanation here is a conceptual walkthrough, not evidence that we tested an account, a particular order or a withdrawal on your behalf.

What matters specifically on Ostium

Read how the chosen market handles sessions, closures, reopening gaps and reference prices. These rules can be more relevant to a particular trade than the platform’s aggregate volume.

Use the metrics below to assess the product over consistent periods. An investor funding round finances a business; it does not determine what a trader receives from a position.

Project facts: official documentation ↗. Trading concepts: margin, liquidation and funding explained in Hyperliquid’s documentation. These illustrate concepts; other venues have different rules. Reviewed 22 September 2026. The worked example is hypothetical.