Where your options capital works as one
Portfolio state, historical chains, and mark-to-market replay in one calm operating surface.
Symbols with local chain history
Daily option snapshots
Tickets staged before commit
One route from chain to decision.
Cronos keeps contract selection, ticket review, portfolio marks, and replay-date state separated, but visually connected.
Choose market state
Pick symbol and date. Cronos anchors chains, quotes, and replay ledger to that historical snapshot.
Build contract exposure
Center strikes around spot, compare bid, ask, mid, and greeks, then stage one or many legs before committing.
Replay the ledger
Advance time. Marks, closes, expiration, assignment, and cash impact stay tied to one auditable trail.
Raw chain context
Historical bid, ask, last, volume, open interest, and delta stay visible while selecting strikes.
Replay accounting
Cash, marked option value, expirations, and assigned shares flow through one portfolio state.
Local research surface
Data is read from local snapshots, with explicit dates when markets or chains resolve backward.