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feat: GMX v2 funding rates via DataStore OI imbalance - #2153

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Flotapponnier merged 1 commit into
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feat/gmx-funding-rates
Aug 27, 2026
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feat: GMX v2 funding rates via DataStore OI imbalance#2153
Flotapponnier merged 1 commit into
devfrom
feat/gmx-funding-rates

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@Flotapponnier Flotapponnier commented Aug 27, 2026

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Summary

  • Fixes wrong DataStore address (0xFD70...D8588... → 0xFD70...D8017...)
  • Adds computeFundingFactorKey and computeOpenInterestKey helpers using keccak256(abi.encode(...)) pattern matching GMX Keys.sol
  • Populates fundingPerSecPerCoin in fetchGmxCarryRates() with: fundingFactor × |longsOI - shortsOI| / totalOI / 1e30
  • OI is summed across both collateral tokens per side (longToken + USDC)
  • Adds GMX_MARKET_LONG_TOKEN mapping for the 7 tracked markets
  • Adds scripts/test-gmx-funding.ts validation script

Validated rates (live from Arbitrum DataStore)

  • BTC: 2.132e-9/sec = 0.000767%/hr
  • ETH: 1.469e-9/sec = 0.000529%/hr
  • SOL: 5.979e-10/sec = 0.000215%/hr
  • ARB: 3.034e-9/sec = 0.001092%/hr
  • DOGE: 4.893e-10/sec = 0.000176%/hr
  • XRP: 2.977e-9/sec = 0.001072%/hr
  • LINK: fundingFactor=0 (GMX disabled funding for this market)

Test plan

  • Run npx ts-node --transpile-only scripts/test-gmx-funding.ts — all markets should print rates in range
  • Call /api/fee-compare?venueA=gmx-v2&venueB=hyperliquid — response should include non-empty fundingPerSecPerCoin for GMX
  • Confirm carry simulation for GMX positions now includes funding component

@Flotapponnier
Flotapponnier merged commit f983458 into dev Aug 27, 2026
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Flotapponnier added a commit that referenced this pull request Aug 27, 2026
@Flotapponnier
sync: merge dev into main (benches 246-249 + recent fixes) (#2167)
655b564 
* fix: restore chainstack findings, new key live on both regions

* fix: us-east only bench, drop us-west dimension and service

* feat: add eu-west + sgp regions, chainstack wins all 3

* feat: GMX v2 funding rates via DataStore OI imbalance (#2153)

* feat: bench #243 keyed-rpc-robinhood — 3-region live data (#2154)

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin robinhood bench queries to region=us-east

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin queries to region=us-east to ignore stale eu/sgp prom data

* fix: augment HL position reconstruction with clearinghouseState to bypass 2000-fill cap (#2159)

* feat(rpc): add Litecoin, Babylon, Acala, Interlay benches (#246-249) (#2166)
Flotapponnier added a commit that referenced this pull request Aug 28, 2026
@Flotapponnier
fix: shareable URL uses query params not broken path format (#2177)
655a762 
* fix(ci): smoke against deploy URL, not CDN-cached openchainbench.com

* fix: augment HL position reconstruction with clearinghouseState to bypass 2000-fill cap

* fix: restore chainstack findings, new key live on both regions

* fix: us-east only bench, drop us-west dimension and service

* feat: add eu-west + sgp regions, chainstack wins all 3

* feat: GMX v2 funding rates via DataStore OI imbalance (#2153)

* feat: bench #243 keyed-rpc-robinhood — 3-region live data (#2154)

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin robinhood bench queries to region=us-east

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin queries to region=us-east to ignore stale eu/sgp prom data

* fix(ci): add checkHost arg to smoke — sitemap from deploy URL, pages on prod

* fix(sitemap): filter removed benches, HL spec slugs, add zerion/routescan to removed products

* fix(sitemap): isHlBuilderSlug filter + exclude REMOVED_BENCH_SLUGS from categories

* sync: merge dev into main (benches 246-249 + recent fixes) (#2167)

* fix: restore chainstack findings, new key live on both regions

* fix: us-east only bench, drop us-west dimension and service

* feat: add eu-west + sgp regions, chainstack wins all 3

* feat: GMX v2 funding rates via DataStore OI imbalance (#2153)

* feat: bench #243 keyed-rpc-robinhood — 3-region live data (#2154)

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin robinhood bench queries to region=us-east

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin queries to region=us-east to ignore stale eu/sgp prom data

* fix: augment HL position reconstruction with clearinghouseState to bypass 2000-fill cap (#2159)

* feat(rpc): add Litecoin, Babylon, Acala, Interlay benches (#246-249) (#2166)

* fix(rpc): remove em dashes from acala/babylon/interlay seo_intro (#2170)

* fix(rpc): replace dead Acala/Interlay providers with live endpoints

* fix(rpc): remove em dashes from acala/babylon/interlay seo_intro

* fix(rpc): replace dead Acala/Interlay providers with live endpoints

* fix: use query params for shareable URL instead of broken path format
Flotapponnier added a commit that referenced this pull request Aug 28, 2026
@Flotapponnier
merge: dev → main (fee-compare improvements) (#2179)
0bb493f 
* fix: restore chainstack findings, new key live on both regions

* fix: us-east only bench, drop us-west dimension and service

* feat: add eu-west + sgp regions, chainstack wins all 3

* feat: GMX v2 funding rates via DataStore OI imbalance (#2153)

* feat: bench #243 keyed-rpc-robinhood — 3-region live data (#2154)

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin robinhood bench queries to region=us-east

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin queries to region=us-east to ignore stale eu/sgp prom data

* fix: augment HL position reconstruction with clearinghouseState to bypass 2000-fill cap (#2159)

* feat(rpc): add Litecoin, Babylon, Acala, Interlay benches (#246-249) (#2166)

* fix(rpc): remove em dashes from acala/babylon/interlay bench YAMLs (#2168)

* feat(rpc): add Litecoin, Babylon, Acala, Interlay benches (#246-249)

* fix(rpc): remove em dashes from seo_intro in acala/babylon/interlay YAMLs

* fix: direction-aware funding projection for all venues (#2163)

* fix(ci): smoke against deploy URL, not CDN-cached openchainbench.com

* fix: augment HL position reconstruction with clearinghouseState to bypass 2000-fill cap

* fix(ci): add checkHost arg to smoke — sitemap from deploy URL, pages on prod

* fix: direction-aware funding projection for all venues

* fix(rpc): replace dead Acala/Interlay providers with live endpoints

* fix: correct Robinhood Chain launch date and remove unverified provider claim (#2174)

* feat: pre-fill wallet from URL params on fee-compare (#2176)

* fix(rpc): replace dead Acala/Interlay providers with live endpoints

* feat: pre-fill wallet/venues from URL search params on fee-compare page

* fix: shareable URL uses query params not broken path format (#2177)

* fix(ci): smoke against deploy URL, not CDN-cached openchainbench.com

* fix: augment HL position reconstruction with clearinghouseState to bypass 2000-fill cap

* fix: restore chainstack findings, new key live on both regions

* fix: us-east only bench, drop us-west dimension and service

* feat: add eu-west + sgp regions, chainstack wins all 3

* feat: GMX v2 funding rates via DataStore OI imbalance (#2153)

* feat: bench #243 keyed-rpc-robinhood — 3-region live data (#2154)

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin robinhood bench queries to region=us-east

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin queries to region=us-east to ignore stale eu/sgp prom data

* fix(ci): add checkHost arg to smoke — sitemap from deploy URL, pages on prod

* fix(sitemap): filter removed benches, HL spec slugs, add zerion/routescan to removed products

* fix(sitemap): isHlBuilderSlug filter + exclude REMOVED_BENCH_SLUGS from categories

* sync: merge dev into main (benches 246-249 + recent fixes) (#2167)

* fix: restore chainstack findings, new key live on both regions

* fix: us-east only bench, drop us-west dimension and service

* feat: add eu-west + sgp regions, chainstack wins all 3

* feat: GMX v2 funding rates via DataStore OI imbalance (#2153)

* feat: bench #243 keyed-rpc-robinhood — 3-region live data (#2154)

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin robinhood bench queries to region=us-east

* remove non-functional eu/sgp Railway scrape targets from Railway Prom (VPS harnesses take over)

* bump cache keys v62/v29 for eu-west+sgp VPS harness data

* fix(keyed-rpc-robinhood): Alchemy leads global avg + eu-west/sgp, Chainstack wins us-east

* revert: us-east only, no dimensions, Chainstack leads

* fix: pin queries to region=us-east to ignore stale eu/sgp prom data

* fix: augment HL position reconstruction with clearinghouseState to bypass 2000-fill cap (#2159)

* feat(rpc): add Litecoin, Babylon, Acala, Interlay benches (#246-249) (#2166)

* fix(rpc): remove em dashes from acala/babylon/interlay seo_intro (#2170)

* fix(rpc): replace dead Acala/Interlay providers with live endpoints

* fix(rpc): remove em dashes from acala/babylon/interlay seo_intro

* fix(rpc): replace dead Acala/Interlay providers with live endpoints

* fix: use query params for shareable URL instead of broken path format

* fix: split Gains taker vs vault fee, add per-trade equiv fee column (#2178)
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@Flotapponnier