Option open interest is a snapshot source - no free history exists anywhere -
so the series only accrues from the day recording starts. That is why this
ships BEFORE the redeploy: every day the EA is not running is a day of history
that cannot be recovered later.
Records one row per weekday after 21:00 UTC to gex_{CANONICAL}.csv: net/call/put
dollar GEX per 1% move, call and put OI, the three nearest expiries and the
front expiry code. Feeds NOTHING - wiring a feature that is missing across ~100%
of the training sample would waste input width and hand batch-norm a constant.
It becomes a screening candidate at ~250 rows, gated like every other feature.
Thesis: dealer gamma is a RANGE mechanism (long gamma -> hedging sells rallies
and buys dips, range compresses; short gamma amplifies both ways), and range is
this project's one proven channel.
Verified in situ against the live SPX chain before writing any MQL5: 29,362
contracts, 20,993 with nonzero gamma, 54 expiries, total +90.7 Bn/1% (calls
+305.7, puts -215.0), and 100% of net GEX inside 5% of spot. The CDN publishes
per-contract gamma directly, so no pricing model - and no model risk - enters
the recorded data. Also verified the CDN does NOT gate on User-Agent (the old
"CBOE is UA-gated" note in DESIGN.md was a different CBOE path), so plain
WebRequest reaches it.
Dropped a zero-gamma "flip level" field: the probe returned a crossing above
spot while total GEX was strongly positive, which is incoherent - a static
gamma snapshot cannot give a flip level without repricing. Recording a
plausible-looking wrong number is worse than recording nothing.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
EIA (user directive: "the NN might find patterns in it for both oil and regular
symbols"). Weekly Petroleum Status Report via the v2 API - crude stocks ex-SPR,
field production, refinery utilization - three features (1y percentile, 4w
change, utilization) on EVERY catalog symbol, not just oil. EIA screened NULL on
WTI's short 7y sample, so these ship as EXPLORATORY inputs: the deploy gate, not
the screen, decides whether a model trained on them trades. Publication stamp
observed+6d mirrors research/altdata/eia.py.
Symbol handling was hardcoded to three if-blocks; it is now a catalog of 24
instruments x alias lists covering The5ers/FTMO/AvaTrade/Dukascopy/OANDA/IC
Markets naming, with prefix matching for the broker suffix zoo (US500.cash,
XAUUSDm, EURUSD.r). Adding an instrument is one AddSpec row. COT caches are
named by CANONICAL so two brokers' names for one contract share a download.
Unrecognised symbol -> a chart dialog (Panel\AltDataMapDialog.mqh, CAppDialog +
dropdown) asks which instrument it is; the answer persists in symbol_map.cfg and
"No alternative data" is a recorded choice, not a nag. Non-blocking by design:
an unmapped symbol contributes 0 features and must never hold up a chart.
Also: UrlEncodePart now escapes '%' - SoQL like-predicates use it as the
wildcard and an unescaped one corrupts the query; docs/ gains the whitelist
URLs, an API-key backup, and the catalog reference.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
