Top Thai Stocks Ranked by Volume Surge Ratio

The Volume Surge Ratio (often used synonymously with Relative Volume) is a technical analysis metric that measures how much the current trading volume of a financial asset deviates from its historical average. A ratio of 2.0, for example, indicates that double the average amount of shares or contracts is being traded whether in the positive or negative territory.

This ranking includes SET, MAI, and DR stocks — giving investors a unified view of Thai‑listed companies and global DRs.

Data as of 14 Jul 2026:

SET

DR

MAI

📊 What VSR Measures — And Why It Matters

It is typically calculated using the following basic formula:

Volume Surge Ratio = Current Period Volume / Average Volume over X periods

Here are details about how it is used by traders and investors:

• Confirmation of Price Action: A volume surge on a breakout—where prices break above a key resistance or below a support level—signals strong conviction from institutional or retail investors.

• Spotting Reversals: Conversely, if prices are rising but the volume surge ratio is declining, it can indicate a trend is losing steam. A massive volume spike on a down day might indicate capitulation or panic selling.

• Spotting Accumulation: Indicators that measure volume over weeks or months (such as an up/down volume ratio) help identify if big investors are steadily accumulating the stock.

• Red Flag Detection: A volume surge after a massive, multi-year run-up can indicate “climax” buying or institutional selling, signaling it might be time to take profits.

Thresholds: A ratio of 1.5 to 2.0 denotes notable activity, while ratios of 3.0 to 5.0 or higher frequently signal major material events like earnings surprises, FDA announcements, or acquisitions.

While many users utilize this metric to identify high-probability breakouts, some investors warn against relying solely on volume surges, as institutions often break up large orders.

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👤 Who Benefits Most from VSR-Based Rankings

This ranking is particularly useful for:

• Short-term investors — who uses it for confirmation of price breakout or trend direction with volume.

• Long‑term investors — who uses it for trend confirmation or major institutional accumulation/distribution over longer periods.

• Fundamental analysts — who uses it to spot Institutional Accumulation/distribution and timing entry/exit points.

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🔍 Explore more!

Learn the importance of Trading Volume and more at ThaiStockHub Learn Center.

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