Sparse snapshot time-series for one underlier
Time-series of per-date snapshot projections between from_date and to_date (both inclusive). Sparse: dates without a snapshot are represented by a null entry in snapshots. The fields CSV parameter restricts the projection to a whitelist; default fields are underlier_price,underlier_iv_30d_atm,put_call_ratio_volume,total_call_volume,total_put_volume. Per-expiry aggregates come from the matching expiry block when ?expiry=YYYY-MM-DD is set; without the filter, volumes / OI sum across all fetched expiries and put-call ratios are recomputed from the aggregate totals (max-pain and DTE keep the front-expiry value). When ?expiry is set but the requested expiry is absent from a given day's snapshot, that day's entry is null (sparse) rather than a row with all-None fields. The window may not extend past the 90-day retention boundary nor into the future.
Path parameters
Underlier ticker.
Underlier ticker.
Query parameters
Inclusive history window start (YYYY-MM-DD).
Inclusive history window start (YYYY-MM-DD).
Inclusive history window end (YYYY-MM-DD).
Inclusive history window end (YYYY-MM-DD).
Optional expiry filter (YYYY-MM-DD). Per-expiry aggregates come from this expiry only.
Optional expiry filter (YYYY-MM-DD). Per-expiry aggregates come from this expiry only.
CSV of fields to project. Whitelist enforced. Default: underlier_price,underlier_iv_30d_atm,put_call_ratio_volume,total_call_volume,total_put_volume.
CSV of fields to project. Whitelist enforced. Default: underlier_price,underlier_iv_30d_atm,put_call_ratio_volume,total_call_volume,total_put_volume.
Response
Sparse snapshot history payload.
Example response
{
"meta": {
"endpoint": "/api/v1/fred/us/cpi",
"data_time": "2026-04-16T14:30:00Z",
"response_time": "2026-04-16T14:30:12Z",
"provider": "Sugra API v1.0.1",
"source": "sugra_crypto",
"attribution": "Short interest and Reg SHO daily short volume data is owned by and sourced from FINRA (Financial Industry Regulatory Authority).",
"fallback_chain": [
"sugra_crypto",
"sugra_finance"
]
}
}