The Australian share market is buzzing with new investors and evolving trading practices in 2025. But with all the focus on ETFs, micro-investing, and fractional shares, one old-school concept is quietly resurfacing: the ‘odd lot’. What exactly is an odd lot, and why should modern investors care? Let’s break it down.
Traditionally, shares on the ASX (Australian Securities Exchange) are traded in standard batches called ‘marketable parcels’—typically multiples of 100 shares. An odd lot refers to any parcel that’s smaller than this standard unit. For example, if you own 37 shares of a company, that’s an odd lot. These can result from dividend reinvestment plans, share splits, or even the sale of part of your holding.
While online brokers and micro-investing apps have made it easier to buy fractions of shares, odd lots remain a distinctive category—especially when it comes to how trades are executed and priced.
With the ASX embracing digital innovation and a new generation of investors entering the market, odd lots are no longer just an administrative quirk. Recent updates in 2025 have made odd-lot trading more visible and, in some cases, more costly or advantageous, depending on your approach:
For example, in early 2025, Telstra ran an odd lot buyback to help small shareholders cash out their holdings without brokerage fees. This proved popular among investors who had accumulated small parcels through dividend reinvestment over the years.
If you find yourself holding an odd lot, here’s how to navigate your options in 2025:
It’s also worth noting that with the rise of fractional investing platforms like Stake and Superhero, the lines between odd lots and fractional holdings are blurring. However, on the ASX, odd lots are still treated differently to standard parcels—especially during corporate actions and off-market trades.
Odd lots may sound like a relic from a bygone era, but in 2025, they’re back in focus for Australian investors. Whether you’re managing a legacy holding, participating in a buyback, or using a micro-investing app, it pays to understand how odd lots work, what they cost, and the options available to you. Smart management of odd lots can help you minimise fees and make the most of your share portfolio—no matter how small.