Aster vs Ostium

Split decision: Aster leads on Most tradable markets on a perp DEX, live count per venue (596 vs 83) and Perp DEX asset breadth (124 vs 74); Ostium leads on Perp DEX capital efficiency (19 vs 0.769) and Perp DEX volume to open interest (0.085x vs 0.515x). Data as of 2026-10-11 UTC.

Read methodology Last measured Window: rolling 24h5 shared benchmarks, 4 measured on both sides
Aster logo
Aster

Aster is a decentralized perps exchange (ex-ApolloX, backed by YZi Labs) on BNB Chain and other EVM networks, with a Binance-compatible API and 8 hour funding periods.

Ostium logo
Ostium

Arbitrum-based perp DEX specialized in RWA exposure including FX, commodities and indices.

Side by side measurements

Perp DEX asset breadth: non-crypto markets live, stocks + indices + forex + commodities

Trading

Aster

Leads

124

p99
124
rank
#3
samples
2,880

Ostium

Trails

74

p99
74
rank
#7
samples
2,880
Non-crypto markets
Astern/aOstiumn/a

Counts reflect each venue's live market catalog at query time, mainnet only. The asset class comes from the venue's own metadata where it publishes one; Hyperliquid HIP-3 dexes and dYdX publish none, so their symbols are matched against the crypto markets the other venues list and a fixed table of forex, commodity and index names. Tokenized gold (PAXG, XAUT) is a crypto token and is not counted. A market counts once whether it trades 24/7 or only during exchange hours.

Rolling 24h · Non-crypto marketsRaw JSON

Perp DEX capital efficiency: active markets per $M TVL, live

Trading

Aster

Trails

0.769

p99
0.769
rank
#9
samples
2,880

Ostium

Leads

19

p99
19
rank
#2
samples
2,880
Markets per $M TVL
Astern/aOstiumn/a

TVL from DefiLlama /protocol/{slug} currentChainTvls, excluding staking and pool2 categories. Market count from each venue's native API (same source as the perp-active-markets bench). The ratio reflects architectural choices, not absolute liquidity: a high ratio means the venue can list many markets cheaply, not that each market has deep liquidity. Compare with perp-volume-share for the liquidity angle.

Rolling 24h · Markets per $M TVLRaw JSON

Perp DEX price to fees: what the market pays per dollar of trading fees

Trading
ProviderFees 30dOpen interestFees / OI
Aster$5.01M$1.34B0.045x
Ostium$138.9K$8.60M0.197x
View
Astern/aOstiumn/a

P/F = circulating market cap (CoinGecko) / annualized fees (DeFiLlama dailyFees, trailing 30d x 365/30), on the DeFiLlama parent the token accrues from. Fees include the share paid to liquidity providers; P/S uses protocol revenue only. Low-float tokens show a much higher FDV/F than P/F. Pre-TGE venues are listed unranked with fees and OI, no ratio. A low multiple is not a recommendation.

Perp DEX volume to open interest: 24h turnover per dollar of OI, live

Trading

Aster

Trails

0.515x

p99
0.786x
rank
#7
samples
2,880

Ostium

Leads

0.085x

p99
0.187x
rank
#1
samples
2,880
Volume / OI (24h)
Astern/aOstiumn/a

The ratio is a screen, not a verdict. Both terms are the venue's own figures (24h volume and open interest as each API reports them, in USD), so a venue that counts both legs of a fill moves its ratio without changing anything real. A very low ratio (Ostium, 0.2x) means positions held for days on thin daily volume; a very high one (Kalshi, above 40x) means a day of trading dwarfs what stays open. The bands in the methodology say what each range usually means.

Rolling 24h · Volume / OI (24h)Raw JSON

Frequently asked questions

Aster vs Ostium: which one is better?

Aster and Ostium are compared on 5 shared OpenChainBench benchmarks. Aster leads on Most tradable markets on a perp DEX, live count per venue. Ostium leads on Perp DEX capital efficiency. See the live table on this page for every metric.

Which has the higher active markets, Aster or Ostium?

On the Most tradable markets on a perp DEX, live count per venue benchmark, Aster leads at 596 versus Ostium at 83. Live measurement is updated continuously by the OpenChainBench harness.

Which has the higher markets per $m tvl, Aster or Ostium?

On the Perp DEX capital efficiency benchmark, Ostium leads at 19 versus Aster at 0.769. Live measurement is updated continuously by the OpenChainBench harness.

How is the Aster vs Ostium comparison measured?

Every benchmark on this page uses the same open methodology, published at https://openchainbench.com/methodology. Data is CC-BY-4.0. Measurement harnesses are MIT-licensed.

Related comparisons

How this pair was selected

Auto-generated pairs require: both providers in the same benchmark for seven consecutive days, at least 1000 samples per provider, observable third-party search demand, and a public /products/[slug] page on OCB. Editorially curated pairs (like this one) may publish early when search demand is high and data is accruing; panels with fewer than 100 samples are shown as provisional. The full pair ledger is versioned in the public repo.

Live data refreshes via ISR within 60 seconds of a new run. Sources are the same Prometheus queries surfaced on the parent benchmark pages.