Adjustment of Open Orders: FINRA Rule 5330

Between the moment an order is placed and the moment it executes, the issuer can declare a dividend, split its stock, or reverse-split. Without an adjustment rule, an uncorrected open limit or stop order would fire at the wrong price when the stock opens ex-distribution. FINRA Rule 5330 is the adjustment rule. Series 6 reps encounter it most on closed-end fund and Exchange-Traded Fund (ETF) open orders.

What does FINRA Rule 5330 require when a corporate action affects an open order?

A member holding an open order from a customer or another broker-dealer (BD) must, prior to executing or permitting the order to be executed, reduce, increase, or adjust the price and/or number of shares to account for a corporate action on the day the security is quoted ex-dividend, ex-rights, ex-distribution, or ex-interest.

• Why the rule exists: an uncorrected open buy limit or stop order would fire erroneously once the stock opens at a post-adjustment price (typically lower by the dividend amount)
• De minimis exception: no adjustment required where a cash dividend or distribution is less than $0.01

Think of it this way: when a stock goes ex-dividend, the opening price typically drops by the dividend amount. A buy-limit order that was sitting $0.20 below the prior close would now be $0.20 above the new opening price and would immediately fire. Rule 5330 preserves the customer's original intent by moving the limit price down to maintain the same distance from the market.

How are open orders adjusted for cash dividends under Rule 5330?

For cash distributions, the rule draws a bright line between the two order types that benefit from a reduced price and the two that do not.

• Unless marked "Do Not Reduce" (DNR), open buy-limit and sell-stop orders are reduced by the dollar amount of the dividend, then rounded down to the next lower minimum quotation variation
• Sell limit and buy stop orders are not reduced (they sit above the market and benefit the holder if the stock trades at a higher adjusted price)
• DNR marking prevents reduction. The customer keeps the original price, often because the customer is targeting a specific technical level

Memory Aid: BLISS - Buy Limit / Sell Stop are the two order types the holder wants lower, so they get reduced to maintain the original market relationship. Sell limits and buy stops sit above the market and stay put.

Exam Tip: Gotchas

• Only buy LIMIT and sell STOP orders are reduced on ex-dividend. Sell limits and buy stops are NOT reduced. The two order types that are reduced sit below the current market price; the two that are not reduced sit above it.
• "Do Not Reduce" (DNR) prevents reduction of cash-dividend adjustments but does NOT prevent stock-split or stock-dividend adjustments. DNR applies only to cash distributions.

How are open orders adjusted for stock splits and stock dividends?

Stock-distribution adjustments work in the opposite direction from cash distributions.

• Stock dividend / stock split (forward): the number of shares on the open order is adjusted by the split ratio, and the price is adjusted by the inverse. The price adjustment rounds UP the dollar value of the stock dividend or split to the next higher minimum quotation variation
• Combined cash and stock: calculate the cash dividend portion first, then apply the stock portion
• Reverse stock split: open orders (buy or sell) are CANCELED, not adjusted

Exam Tip: Gotchas

• A reverse stock split CANCELS open orders. It does not adjust them. A forward split adjusts; a reverse split cancels. This asymmetry is a frequent exam trap.
• For stock distributions, round UP the stock-dividend value. For cash distributions, round DOWN the reduced price. The direction of the rounding depends on the distribution type.

What happens to an open order when a distribution's value cannot be determined?

Sometimes the value of a distribution is not yet determinable at the ex-date.

• If the value of the distribution cannot be determined, the member may not adjust, execute, or permit the order to be executed without reconfirming the order with the customer
• Reconfirmation re-establishes customer intent in light of the new corporate-action facts

When does Rule 5330 apply to Series 6 products?

Rule 5330 maps onto a narrow slice of Series 6 products.

• Rule 5330 is most commonly encountered on closed-end fund and ETF open orders (day or Good-Til-Cancelled (GTC) limit orders placed through an equity order channel)
• Open-end mutual funds execute at Net Asset Value (NAV) on forward pricing. There are typically no "open orders" sitting at a price awaiting a corporate action; however, fund-level distributions (income or capital-gain distributions) require the fund's NAV to drop by the distribution amount, which is handled by fund accounting, not by Rule 5330
• A Series 6 rep who maintains closed-end fund or ETF open orders must understand which orders are reduced (buy limit / sell stop) and which are not (sell limit / buy stop)

Exam Tip: Gotchas

• Rule 5330 applies to open orders on closed-end funds and ETFs, not to open-end mutual fund orders. Open-end fund orders are one-shot forward-priced orders, not limit orders sitting in a book. The rep should not expect to see Rule 5330 mechanics on a mutual-fund purchase.