An order or transaction for fewer shares than a round lot, conventionally 100 shares. An odd lot may be displayed and executed and its execution is reported to the consolidated tape, but standing alone it cannot create a protected quotation under Regulation NMS, which requires round-lot size.
Practice questions using Odd Lot
Original questions written against the published FINRA and NASAA exam content outlines — not actual exam questions. Every choice is explained.
A trade of 100 shares is a:
A.Block tradeA block refers to an unusually large transaction negotiated for size. One hundred shares is the ordinary trading unit, nowhere near the scale that earns the block label.
B.Round lotCorrect - 100 shares is a round lot.
C.Odd lotAn odd lot is any quantity below the standard trading unit, such as 40 or 75 shares. At exactly 100 the trade meets the unit rather than falling short of it.
D.BasketA basket describes a group of different securities bought or sold together, which is a matter of composition rather than size. This trade involves one security in the standard quantity of 100 shares.
Why: 100 shares is a round lot; fewer than 100 shares is an odd lot.
A retail customer enters a displayed limit order to buy 37 shares of an NMS stock at a price one cent better than the current national best bid. The exchange accepts and displays the order. What is the order's status under Regulation NMS?
A.Odd lots are neither displayed nor executed on an exchange, so the order will be rejected.Wrong. Odd-lot orders are routinely displayed and executed; they simply do not create protected quotations.
B.The order establishes a new protected bid, so every trading center must avoid trading through it.Wrong. Protected quotation status requires round-lot size, which 37 shares does not meet.
C.It cannot by itself establish a protected quotation because protected quotes must be round-lot sized, though it may be displayed and executed and the execution is reported to the consolidated tape.Correct. Valid and executable, but not protected, because it is smaller than a round lot.
D.Odd lots must be aggregated with other orders into round lots before any execution may occur.Wrong. No aggregation requirement exists; odd lots execute on their own.
Why: A protected quotation must be a round lot, conventionally 100 shares for most NMS stocks, and must be immediately accessible and automated. An odd lot standing alone therefore cannot create a protected bid or offer, so other trading centers have no obligation to route to it and may trade at inferior prices without violating the order protection rule. The order is nonetheless perfectly valid: it can be displayed and executed like any other, and odd-lot executions are reported to the consolidated tape so the public sees the print.
Finance Exam Pro is not affiliated with FINRA, NASAA, or any exam sponsor. Practice questions are original and are not actual exam questions. Rules change — confirm current requirements with the relevant regulator.