Recently, I’ve been pondering a question: do stock prices go up after the ex-dividend date? Actually, this is a very good question because it reflects the genuine confusion many novice investors have about high-dividend stocks.

Let’s start with the conclusion: do stock prices rise after the ex-dividend date? The answer is not necessarily. Many people think that stock prices must fall on the ex-dividend date, but based on historical data, this idea is actually too absolute. The key point is that stock price movements are influenced by multiple factors, not just the ex-dividend event.

First, let’s understand how the ex-dividend affects stock prices. Simply put, when a company pays cash dividends to shareholders, it’s equivalent to the company’s assets decreasing, so theoretically, the stock price should adjust downward. For example, suppose a company’s stock is priced at $35 per share, which includes $5 in cash reserves per share. If the company decides to distribute a special dividend of $4 per share, then on the ex-dividend date, the stock price should theoretically adjust from $35 to $31. This logic sounds reasonable, but in reality, will the stock price go up after the ex-dividend date? The situation is often more complex.

Looking at actual cases makes this clear. Coca-Cola, a long-established dividend-paying company, usually experiences a slight decline on the ex-dividend date, but sometimes it also rises slightly. Apple is even more interesting because tech stocks have been very popular lately; on some ex-dividend dates, Apple’s stock has surged significantly, with gains exceeding 6%. Industry leaders like Walmart and PepsiCo also often see stock price increases on the ex-dividend date. So, will the stock price rise after the ex-dividend date? It depends on market sentiment, company performance, dividend amount, and other factors.

So, how should you approach buying before and after the ex-dividend date? I think it depends on three aspects. First, look at the stock’s performance before the ex-dividend date. If the stock has already risen to a high level, many investors might take profits early, and entering at this point may not be very wise. Second, review the historical trend: generally, stocks tend to fall rather than rise after the ex-dividend date, making short-term trading riskier. But if the stock price drops to a technical support level and begins to stabilize, that could be a good buying opportunity.

Most importantly, consider the company’s fundamentals. For solid, industry-leading companies with strong fundamentals, will the stock price go up after the ex-dividend date? Actually, there’s no need to overthink this because the intrinsic value of the company doesn’t change. A price decline provides a cheaper entry point for long-term investors. The dividend payout in such cases is just a price adjustment, not a reduction in value. So, if you believe in a company’s long-term prospects, the ex-dividend date can be a good time to increase your holdings.

Another important concept is “right-filling” and “right-sticking.” Right-filling means that after the stock goes ex-dividend, its price gradually recovers to previous levels, indicating investors’ confidence in the company’s future. Right-sticking means the stock price remains depressed without recovery, often reflecting investor concerns about the company’s future performance. Judging whether a stock is filling or sticking can help you decide if the price will rise after the ex-dividend date.

Don’t forget the hidden costs. If you buy stocks in a regular taxable account, after the ex-dividend date, you face not only unrealized losses from the stock price decline but also taxes on the dividends received. For example, in Taiwan’s stock market, buying and selling stocks incurs a transaction fee (stock price multiplied by 0.1425%, then discounted), and selling also involves a transaction tax (0.3% for regular stocks, 0.1% for ETFs). These costs add up and can impact your actual returns.

So, does the stock price go up after the ex-dividend date? There’s no standard answer; it depends on the specific situation. For short-term traders, the risks are higher, but for long-term investors holding quality high-dividend stocks, the ex-dividend date can actually be a good opportunity to build positions. The key is to analyze the company’s fundamentals rationally rather than follow the crowd blindly.