Traders Purchased $41 Million in Sandisk Options

Investors placed large bets on short-dated call options amid a broader rally in the memory-stock sector.

Updated on Sept. 18, 2026 in Stock Markets

Isometric editorial illustration featuring stacks of silicon wafers and automated manufacturing equipment, representing semiconductor market activity. — Investors poured $41 million into Sandisk call options as part of a wider $90 million premium surge across the memory chip sector. AI Illustration. Upload story photo >

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Traders spent $41 million on October 2 call options for Sandisk, signaling high expectations for the stock. This activity is part of a larger $90 million premium surge across the memory industry.

Why it matters

The heavy volume indicates that market participants are positioning for a significant near-term price movement. These options are targeted at a $1,600 strike price, reflecting aggressive bullish sentiment.

The Tradr 2X Long SNDK Daily ETF rose 13.81% to $16.73 on September 18, fueled by a daily trading volume of 47.3 million shares. This follows a period where the fund fell for five consecutive sessions.

The players

Sandisk

This is a technology company specializing in data storage and memory solutions.

Tradr 2X Long SNDK Daily ETF

This exchange-traded fund is designed to provide daily investment results corresponding to 200% of the daily performance of Sandisk.

The details

The Tradr 2X Long SNDK Daily ETF uses swaps and options to track double the daily performance of Sandisk stock. Traders are utilizing these instruments to capitalize on volatility within the memory chip sector.

September 4, 2026: The SNXX ETF experienced a 23.38% increase.
September 14, 2026: The SNXX ETF declined by 10.09%.
September 16, 2026: The SNXX ETF ended a five-day period of consecutive losses.
September 17, 2026: The SNXX ETF rebounded 11.96% to close at $14.70.
September 18, 2026: The SNXX ETF climbed 13.81% to reach a closing price of $16.73.

Market Dynamics

The aggressive options activity follows a pattern set by traders seeking to exploit the anticipated volatility within the industry's specific catalyst window. This behavior mirrors historical trends where investors use leveraged vehicles to amplify exposure to semiconductor cycles.

Retail investors should be aware that leveraged ETFs utilize swaps and options to target double the daily performance of an underlying stock, which can lead to rapid value fluctuations. This activity highlights the increased risk associated with short-dated, high-strike call options in volatile sectors.

The takeaway

The massive influx of capital into short-dated call options underscores an intense speculative environment surrounding memory-stock volatility. Investors should exercise caution when tracking leveraged products that are heavily influenced by rapid, short-term price swings.