A cash account’s balance display does not answer every question about whether a new purchase has been paid for. The source and settlement of the money matter. The SEC’s investor bulletin provides examples that help separate a fully funded same-day transaction from a sale used to finance an otherwise unpaid purchase.
Follow the evidence
Trace how the event could reach markets, then inspect a competing explanation.
Compare explanations
Switch lenses to see what each account explains—and what remains uncertain.
Imagine an investor with an invented $2,400 of settled cash who buys securities costing $2,000. The cash source is already present. The fact that a sale occurs later that day does not by itself establish the unpaid-purchase problem described in the bulletin. A blanket statement that all same-day trading is prohibited would miss that distinction. Now imagine a separate account with no available cash that expects money from another securities sale. To understand a new purchase in that account, a reviewer needs the first sale’s settlement date and the timing of any subsequent sale of the new securities. Merely adding up purchases and sales cannot establish whether full payment preceded that later disposal. These are illustrative account scenarios, not findings about a named investor or broker. Their purpose is to show why a chronology needs both securities events and cash events. A display labelled buying power may be useful operationally, but a review of payment timing requires the underlying ledger and the account’s actual terms.
Imagine an investor with an invented $2,400 of settled cash who buys securities costing $2,000. The cash source is already present. The fact that a sale occurs later that day does not by itself establish the unpaid-purchase problem described in the bulletin. A blanket statement that all same-day trading is prohibited would miss that distinction. Now imagine a separate account with no available cash that expects money from another securities sale. To understand a new purchase in that account, a reviewer needs the first sale’s settlement date and the timing of any subsequent sale of the new securities. Merely adding up purchases and sales cannot establish whether full payment preceded that later disposal. These are illustrative account scenarios, not findings about a named investor or broker. Their purpose is to show why a chronology needs both securities events and cash events. A display labelled buying power may be useful operationally, but a review of payment timing requires the underlying ledger and the account’s actual terms.
Record the account type, trade dates, purchase amounts, deposits and relevant settlement dates. Distinguish cash already settled from anticipated proceeds. If a restriction is applied, obtain the broker’s explanation of the triggering sequence and the conditions for permitted activity during the restriction rather than interpreting a short interface message alone. Business days, the particular instrument and the applicable settlement arrangement need to be checked for the actual transaction. Do not infer a universal settlement date from an unrelated example. Keep statements, confirmations and funding records together so the chronology can be reproduced. This article explains the SEC bulletin as reviewed on 8 October 2026. It does not assess an individual account or equate cash-account payment rules with margin-account restrictions. The relevant question remains whether the particular purchase was fully paid under the applicable conditions.
The SEC describes payment and settlement conditions
The bulletin, originally published on 12 September 2017 and updated on 7 August 2026, says a cash-account investor must pay in full for purchased securities and cannot borrow from the broker to finance the account’s transactions. Its examples distinguish available cash from proceeds awaiting settlement. SEC Investor.gov — Trading in Cash Accounts, updated investor bulletin
The SEC explains that buying and selling a security before paying for it is freeriding, which is not permitted under Regulation T. This can require a 90-day account freeze. During that period, purchases remain possible when fully paid on the trade date. The bulletin also gives an example of a permitted same-day sale of a purchase funded with existing cash. SEC Investor.gov — Trading in Cash Accounts, updated investor bulletin
Follow the payment source, not just the trade count
Imagine an investor with an invented $2,400 of settled cash who buys securities costing $2,000. The cash source is already present. The fact that a sale occurs later that day does not by itself establish the unpaid-purchase problem described in the bulletin. A blanket statement that all same-day trading is prohibited would miss that distinction.
Now imagine a separate account with no available cash that expects money from another securities sale. To understand a new purchase in that account, a reviewer needs the first sale’s settlement date and the timing of any subsequent sale of the new securities. Merely adding up purchases and sales cannot establish whether full payment preceded that later disposal.
These are illustrative account scenarios, not findings about a named investor or broker. Their purpose is to show why a chronology needs both securities events and cash events. A display labelled buying power may be useful operationally, but a review of payment timing requires the underlying ledger and the account’s actual terms.
Build a transaction and settlement timeline
Record the account type, trade dates, purchase amounts, deposits and relevant settlement dates. Distinguish cash already settled from anticipated proceeds. If a restriction is applied, obtain the broker’s explanation of the triggering sequence and the conditions for permitted activity during the restriction rather than interpreting a short interface message alone.
Business days, the particular instrument and the applicable settlement arrangement need to be checked for the actual transaction. Do not infer a universal settlement date from an unrelated example. Keep statements, confirmations and funding records together so the chronology can be reproduced.
This article explains the SEC bulletin as reviewed on 8 October 2026. It does not assess an individual account or equate cash-account payment rules with margin-account restrictions. The relevant question remains whether the particular purchase was fully paid under the applicable conditions.