What Is a Board Lot?

A board lot is a standardized number of shares defined by a stock exchange as a trading unit. In most cases, this means 100 s꧑hares.

A board lot is what the exchange determines to be a 澳洲幸运5官方开奖结果体彩网:round lot. The purpose of a board lot is to minimize trading "odd lots" and to facilitate easier trading. It's more difficult for a broker to find a buyer for, say, 17 shares, if everybody agrees to trade in 100 share lots. With the advent of efficient online trading and 澳洲幸运5官方开奖结果体彩网:fractional shares, however, odd 🌜lot trading is 🦩less of an issue than it has been in the past.

Understanding Board Lots

The size of a board lot will vary. A stock exchange might define one board lot as equaling 1,000 shares for stocks priced under $1, and 100 shares for shares valued at more than $1. The thinking is that 澳洲幸运5官方开奖结果体彩网:standardization increases 澳洲幸运5官方开奖结果体彩网:liquidity, thus low💫ering spreads and 🐓making the market more efficient for everybody.

Tighter spreads and more liquidity leads to lower transaction cost, which investors of all💙 varieties prefer. Although most securities bookkeeping today is done electronically, fractional ownership percentages still pose an administrative burden. As such, economies of scale prefer security lots to come in larger increments.

For certain hedging applications or other more advanced trading strategies, buying or selling in increments of 100 might be sub-optimal; in these instances, it might make sense 🥀for an investor to use a full-ser෴vice broker to dial in the right amount of securities—no more and no less than what is needed.

It is not uncommon for voice or 澳洲幸运5官方开奖结果体彩网:discount brokerages to limit users to round lots as part of their service agreements. O💮nline brokerages and electronic trading, however, have steadily reduced the inefficiency and cost associated with odd lots. As a result, the need for board lots has decreased drꦇamatically over the past decade.

Example of Board Lots

Unlike the U.S., where board lot sizes are typically standardized to 100 shares, 澳洲幸运5官方开奖结果体彩网:the Toronto𒆙 Stock Exchange (TSX/TMX) has variable board lot sizes that are dependent on the price of the security. They are defined in the 澳洲幸运5♎官方开奖结果体彩网:Universal Market Integrity Rules (UMIR) that govern trading practices in Canada.

The guidelines are as follows: If the trading price per unit is less than $0.10, the board lot size is 1,000 units. If the trading price per unit is $0.10 to $0.99, the board lot size is 500 units. When the trading price per unit is $1.00 or more, the board lot size is 100 units.