Recently, I’ve found that many small retail investors around me are researching how to buy fractional shares, and I’ve also organized some practical takeaways that I’d like to share with everyone.

When it comes to fractional shares, they basically refer to those scattered stocks of fewer than 1,000 shares, with the minimum trading unit being 1 share. So why do fractional shares exist? Usually it’s because orders don’t get fully filled, or because they arise from a company’s share allotment. For investors who don’t have a deep enough wallet, fractional shares are indeed a good option—you can use less capital to test the waters with some popular stocks.

As for trading hours, reforms were introduced after 2020. Now you can trade fractional shares both during regular trading hours and during after-hours. During regular hours, trading runs from 9:00 AM to 1:30 PM, with matching occurring once every minute; you can only place orders electronically. If your order doesn’t get filled, you’ll need to wait until the after-hours session to try again. The after-hours session runs from 1:40 PM to 2:30 PM. During that time, you can place orders electronically or by phone, but there will only be a single call auction at 2:30 PM—after that, the orders are automatically canceled.

Regarding transaction fees, the way fees for buying and selling fractional shares are calculated is actually the same as for whole shares: it’s charged at 0.1425% of the trade value. However, the minimum fee and any discounted rates differ a lot from one brokerage to another. Some offer a discount of 1.8折, while others offer 6折, so when choosing a brokerage, you need to check carefully. I’ve calculated it myself: buying 200 shares of TSMC would likely cost a bit over NT$300 in fees, and with a 5折 discount, it would be just a little over NT$150.

When it comes to how to sell fractional shares more easily, this is a pain point for many people. Because fractional-share trading volume for less popular stocks is relatively low, sometimes you can’t even sell during the daytime session on the same day. Based on my experience, if you need to sell quickly, you can try a method often described as “turning small lots into whole lots”—first buy some fractional shares to accumulate them into a whole share, then sell the whole shares, since whole shares have much higher trading volume. Alternatively, during the after-hours session, you can simply place a sell order at the limit-down price. Under the maximum transaction principle, the chance of successfully selling is generally higher.

The advantage of trading fractional shares is the low barrier to entry—you can buy popular stocks with just a few thousand dollars, and you can also treat it as a way to invest with regular contributions. But the downsides are obvious too: liquidity is poor, transaction fees are relatively high, and the minimum fee for a single trade is usually 20 yuan. If you buy too few shares, the fee proportion becomes too high, and it’s not worth it. Also, fractional shares can only be sold, not submitted for buying—this is another limitation.

If you still feel that fractional shares are a bit troublesome, you can also consider an alternative approach like Contracts for Difference (CFD). With CFDs, you only need to post a small portion of margin to trade—for example, using 100 US dollars of margin, you can control a Google stock position worth 2000 US dollars, and the freed-up capital can be used for other investments. However, CFDs are more suitable for short-term trading. Holding positions overnight also requires paying overnight interest, which doesn’t quite match the logic of long-term holding with fractional shares.

Overall, in recent years, trading fractional shares has indeed become more and more convenient. For small retail investors, it’s a good way to get started. But to do it successfully, you still need to understand your own risk tolerance, learn basic investment analysis, and most importantly, stay rational—don’t let market sentiment lead you by the nose. If you plan to start selling fractional shares or trading fractional shares, it’s recommended that you first use a simulated account to get familiar with the process, so you can get the hang of it faster.