Positions and accounting

An account can hold YES and NO contracts in the same market simultaneously.

• presentation=dual returns yes_qty and no_qty separately, plus yes_reserved and no_reserved locked by active limit orders.
• presentation=net returns signed qty = yes_qty - no_qty; positive is YES, negative is NO. This is the default.

Use dual for balances and available-quantity calculations. POST /trading/accounts/{account_id}/merge converts equal YES and NO quantities back into cash. Setting auto_merge: true on an order requests automatic merging when both token balances accumulate after a fill.

/accounting delivers atomic accounting updates containing cash, margin-release, and position deltas. ref_id and client_ref_id correlate updates with orders or merge commands. Settlement and void are delivered as accounting_payout; GET .../payouts provides payout records for reconciliation.

Critical: /accounting is the authoritative incremental feed, and the public API does not provide deep replay beyond the one-hour WebSocket window. REST positions and payouts do not reconstruct every missed accounting delta. If /accounting returns resume_too_old, do not reconnect without since and assume the ledger is complete; stop automatic accounting application and follow the agreed operational reconciliation process.