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Mark DX as not-on-databento (ICE product), add Yahoo fallback - #61
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DX (US Dollar Index) trades on ICE, not CME Globex, so databento's GLBX.MDP3 carries no series for it. But `databento` defaults to the internal symbol, so the producer queried `DX.n.0` on GLBX and got empty results across every paged window, leaving no ohlcv file and a hollow statistics manifest marker, and it would re-scan DX empty on every future run. Set `databento: null` so the databento producer skips DX (mirrors the ICE softs), and add `yahoo: DX-Y.NYB` (cash DXY) as the cross-platform fallback, since Yahoo has no working DX futures ticker (DX=F returns empty; DX-Y.NYB verified live). Norgate still serves DX for local research. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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DX (US Dollar Index) trades on ICE, not CME Globex, so databento's
GLBX.MDP3has no series for it. Becausedatabentodefaults to the internal symbol, the producer queriedDX.n.0on GLBX and got empty results across every paged window: no ohlcv file, a hollowDX.n.0:statisticsmanifest marker (last_dateadvanced,n_rows=None), and a re-scan-empty on every future run.Surfaced while checking the databento backfill (36/41 done): DX was the one "partial" symbol with statistics-but-no-ohlcv, both empty.
Fix:
databento: nullso the producer skips DX (same as the ICE softs SB/CT/CC/...).yahoo: DX-Y.NYB(cash DXY) as the cross-platform fallback.DX=Freturns empty on Yahoo;DX-Y.NYBverified live (last=2026-07-24, close 101.47).Verified: DX resolves
databento=None, and the databento target list drops 41 -> 40 with DX excluded.test_registry.pygreen (27).Independent of #40 (touches
registry.yamlonly, no overlap with the ingest paging).🤖 Generated with Claude Code