Abnormal Volume Stocks to Watch Wednesday: HPE, CBOE, GitLab, FRHC, and Marvell Lead

Abnormal volume can be an early signal of changing market conviction, whether driven by earnings, guidance, deal activity, analyst actions, index-related flows, or a broader shift in sector sentiment. For Wednesday's session, the most notable abnormal volume stocks from the prior trading day were led by Hewlett Packard Enterprise Co (HPE), followed by Cboe Global Markets Inc (CBOE), GitLab Inc (GTLB), Freedom Holding Corp (FRHC), and Marvell Technology Inc (MRVL).

To identify the standouts, closing trading data for Russell 1000 components was screened by comparing each stock's latest session volume against its average daily volume over the trailing three months. The result is a ranked list of names that traded well above their normal activity levels, a useful starting point for tracking momentum, news-driven repricing, and potential follow-through in the next session.

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Top Abnormal Volume Stocks From the Prior Session

Hewlett Packard Enterprise Co (HPE) topped the list with 7.4x normal volume. The stock traded 152.81 million shares in the prior session, compared with average volume of approximately 20.58 million shares.

Cboe Global Markets Inc (CBOE) ranked second, with 5.2x normal volume. The stock traded 5.00 million shares versus a typical 953,312 shares.

GitLab Inc (GTLB) placed third, with 4.3x normal volume, after roughly 25.68 million shares changed hands compared with calculated normal volume of 5.99 million shares.

Freedom Holding Corp (FRHC) ranked fourth, with 4.0x normal volume. About 397,000 shares traded, versus normal volume of 98,057 shares.

Marvell Technology Inc (MRVL) rounded out the top five, with 3.9x normal volume. The stock saw approximately 107.57 million shares trade, compared with normal volume of 27.74 million shares.

What Abnormal Volume Can Indicate

Abnormal volume matters because unusually heavy trading often reflects a meaningful shift in information, positioning, or liquidity demand. On its own, volume does not determine direction, but it can help distinguish routine price movement from a move the market is treating as significant.

• News absorption: Elevated volume often follows earnings releases, revised outlooks, management commentary, or merger-related developments.
• Stronger price discovery: When participation broadens, the market may be reassessing valuation more aggressively.
• Institutional activity: Large funds tend to leave a clearer footprint in volume than in price alone.
• Potential follow-through: Stocks that trade several times above normal volume frequently remain on traders' radar in the next session.

Context remains essential. A high volume multiple paired with a decisive price move may carry more analytical weight than volume alone. By contrast, elevated turnover without a clear directional outcome can suggest two-way positioning, event hedging, or temporary dislocation rather than a durable trend.

Why HPE and the Other Leaders Stand Out

Among the names screened, HPE was the clear outlier by volume multiple and by absolute share count. That combination is often associated with a material catalyst or a broad repricing event, since it indicates both unusual participation and deep liquidity. MRVL also stood out on an absolute basis, with more than 100 million shares traded, underscoring how abnormal volume in large-cap technology can reflect rapid changes in expectations around growth, margins, or end-market demand.

CBOE and FRHC are notable for a different reason: each posted a strong volume multiple despite much lower normal daily turnover than HPE or MRVL. In these cases, the ratio itself can be especially informative, because a relatively modest increase in absolute share count can still represent a substantial change in investor attention.

How to Read the List for Wednesday's Session

For market participants monitoring abnormal volume stocks, the next session typically centers on a few practical questions:

• Did the stock close near session highs or lows? That can offer clues about whether conviction strengthened or faded into the close.
• Was there a clear catalyst? A move tied to a defined event is often easier to evaluate than one driven primarily by flow.
• Is volume confirming the trend? Continued elevated turnover can support the case that the prior session was more than a one-day anomaly.
• How does the move compare with sector peers? Relative performance can help separate company-specific repricing from broader industry rotation.

In practice, abnormal volume screens are most effective when combined with price action, news flow, and a stock's recent trading range. A 4x or 5x spike in volume is notable, but its significance depends on whether the stock is breaking out, reversing, filling a gap, or simply reacting to a transitory event.

Relative Performance Over the Past 12 Months

The chart below compares trailing 12-month stock price performance for the leading abnormal volume names, with each ticker shown in a different color as labeled in the legend.

Full Top 10 Stocks by Degree Above Normal Volume

The full top 10 list of Russell 1000 stocks with the highest abnormal volume in the latest session appears below.

For more candidates tied to this theme, browse Investor Articles and compare the current list.