Should you buy a stock just before the Ex-Dividend date?

You might wonder if it’s possible to collect a dividend by simply buying a stock right before its ex-dividend date, then selling it shortly after.
This idea is often referred to as an ex-dividend investing strategy.

It sounds logical:
Buy the stock → collect the dividend → sell the stock.
But does it work?

What is the Ex-Dividend date?

The ex-dividend date is the first day a stock trades without the next dividend. To receive the dividend, you must own the stock before this date.

On the ex-dividend date, the stock price typically drops by roughly the same amount as the dividend. This is not a coincidence—it reflects the fact that the value of the upcoming dividend is no longer included in the share price.

The problem with the Ex-Dividend strategy

Here’s where things break down.

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Even though you receive the dividend, you may lose the same amount in the stock price—sometimes more. On top of that, you face:

Transaction costs (especially relevant for small investors)
Possible tax on dividends (HK dividends are mostly tax free)
Currency exchange costs
A bid-ask spread when selling

For most retail investors, these small costs add up quickly, erasing any short-term gain. That’s why this strategy often under-performs, especially when repeated over time.

When might the Ex-Dividend strategy Work?

There are situations where buying before the ex-dividend date could offer some benefit:

The stock is illiquid, and the price doesn’t fully adjust.
You were already planning to buy and hold the stock, and the timing simply works in your favor.
The stock is high-yielding and stable, and the price rebounds quickly after the ex-date.

But even in those cases, this is a tactic—not a strategy. And it’s not reliable.

A more reliable approach: Dividend Growth Investing (DGI)

Rather than chasing dividends for short-term gain, most successful long-term investors build portfolios that focus on:

Consistent dividend growth
Low risk of dividend cuts
Reasonable valuation

This approach allows income to compound over time, even through market volatility. It’s slower—but much more dependable.

That’s exactly what we focus on at HongKongDividendStocks.com.
Our 3-pillar framework helps you identify the strongest dividend opportunities in the Hong Kong market using real, up-to-date data.

Track upcoming Ex-Dividend dates in Hong Kong

If you still want to keep an eye on timing, we maintain a free, updated page listing all upcoming ex-dividend dates for HK-listed stocks. Here

For all HK Dividend Growth Stocks : View the calendar of ex-dividend dates here

We list both blue chip and dividend growth companies, so you can plan your portfolio with better insights, not guesswork.

Final Thought

Buying before the ex-dividend date might look like a shortcut to easy income, but in most cases, it’s not. The market adjusts. The price drops. And unless you’re an institutional investor with low fees and tax advantages, the costs usually outweigh the benefits.

A better way to build wealth is to own great companies that grow their dividends over time and let compounding do the work.