OpenChainGraph Suite · ART-396 · Broker-Dealer Operations
15c3-3 Customer Reserve Formula Calculator
SEC Rule 15c3-3 Exhibit A customer reserve formula: credit items against allowable debit items (margin-account 1% haircut, 30-day failed-to-deliver aging exclusion) to a reserve requirement and deposit-sufficiency verdict. Simplified over a representative subset of Exhibit A line items — the receipt attests our computation over the inputs supplied, not an audit of those inputs or a determination of regulatory compliance.
17 CFR 240.15c3-3Exhibit A
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Credit Items
Category
Amount ($M)
Free credit balances
Margin credit balances
Payable from securities loaned
Debit Items
Category
Amount ($M)
Aging (days)
Margin account debits (1% haircut)
Aging days
Failed to deliver (30-day aging exclusion)
Aging (days) for the failed-to-deliver debit above