Periods & dates

Every period-bound fact carries all three period representations:

"period": {
  "calendar": "2026Q1",
  "fiscal": "2026Q2",
  "end_date": "2026-03-28",
  "kind": "quarter"
}

kind is one of quarter, annual, ttm, ytd, instant, or forward (guidance). Quants join on calendar; models often join on fiscal.

Query parameters

Param	Notes
periods	Repeatable: periods=2026Q1&periods=2026Q2. Calendar by default.
period_basis	fiscal to switch the periods filter to fiscal periods.
start_date / end_date	ISO-8601 date bounds.
updated_after / updated_before	Delta-sync: only rows changed in a window.