Kalshi vs StandX

Kalshi leads on all 3 live benchmarks. Kalshi wins on Cheapest perp venue to hold a position, live funding normalized (2.54 bps vs 3.00 bps), Perp DEX volume share, live 24h notional ranked ($1.59B vs $375.42M), Most tradable markets on a perp DEX, live count per venue (20 vs 13).

Read methodology Last measured Wed, 23 Sep 2026 00:14:00 UTCWindow: rolling 24h4 shared benchmarks

Kalshi

CFTC-regulated US prediction market exchange. REST trade API (trade-api/v2) with documented per-tier rate limits; the market data WebSocket requires authentication.

StandX

Side by side measurements

Cheapest perp venue to hold a position, live funding normalized

Trading

Kalshi

Leads

2.54 bps

p99: 0 bps
rank: #5
samples: 630

StandX

Trails

3.00 bps

p99: 3.00 bps
rank: #10
samples: 630

Funding cost to hold a long 24h

Kalshin/aStandXn/a

Funding is signed. Positive means longs pay shorts, negative means longs get paid to hold. Venues settle on different native periods (1h for Hyperliquid and dYdX, 4h or 8h elsewhere); every figure is normalized from the venue's own quoted rate and interval before ranking. Funding is only the holding cost. Opening costs (taker fee, spread, impact) are the companion bench perp-fees.

Perp DEX volume share, live 24h notional ranked

Trading

Kalshi

Leads

$1.59B

p99: $1.62B
rank: #5
samples: 630

StandX

Trails

$375.42M

p99: $390.70M
rank: #10
samples: 630

24h perp volume

Kalshin/aStandXn/a

Perp DEX funding stability, 24h stddev of ETH funding ranked

Trading

Kalshi

Trails

0.013 %

p99: 0%
rank: #12
samples: 630

StandX

No data in window

24h ETH funding stddev

Kalshin/aStandXn/a

Ranked only with 24 hours of funding history (288 samples) and a stddev above zero: a young listing, or a venue whose rate has not moved since listing (Ondo Perps at launch, Polymarket in July), reads artificially stable and shows as Provisional, never as the leader. Stability is not directionality: a persistently positive but tight band ranks above a rate that flips every settlement.

Most tradable markets on a perp DEX, live count per venue

Trading

Kalshi

Leads

p99: 20
rank: #20
samples: 630

StandX

Trails

p99: 13
rank: #21
samples: 630

Active markets

Kalshin/aStandXn/a

Frequently asked questions

Kalshi vs StandX: which one is better?

Kalshi and StandX are compared on 4 shared OpenChainBench benchmarks. Kalshi leads on Cheapest perp venue to hold a position, live funding normalized. See the live table on this page for every metric.

Which is cheaper, Kalshi or StandX?

On the Cheapest perp venue to hold a position, live funding normalized benchmark, Kalshi leads at 2.54 bps versus StandX at 3.00 bps. Live measurement is updated continuously by the OpenChainBench harness.

How is the Kalshi vs StandX 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.

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.