Noteworthy Tuesday Option Activity: HAE, AIP, MSTR

Arteris Inc. (AIP) and MicroStrategy Inc. (MSTR) both experienced exceptionally high options trading volumes today, significantly exceeding their average daily share trading volumes. AIP's options volume reached 167.7% of its average daily share trading volume, with notable activity concentrated in its August 2025 $10 strike put options. Concurrently, MSTR's options volume was 146.1% of its average, driven by substantial interest in its August 2025 $400 strike call options. This elevated and concentrated options activity suggests significant directional positioning or hedging by market participants, indicating a potential bearish sentiment or protective interest around the $10 level for AIP, and a bullish outlook or speculative interest around the $400 level for MSTR.

Analysis

Arteris Inc. (AIP) and MicroStrategy Inc. (MSTR) both experienced a significant surge in options trading activity, with total contract volumes representing 167.7% and 146.1% of their respective average daily share volumes. The activity in Arteris was notably concentrated in the August 15, 2025, $10 strike put options, where 1,594 contracts were traded. This concentration in long-dated puts suggests a defined bearish sentiment or a significant hedging operation, with market participants positioning for a potential decline in AIP's stock below the $10 level over the next year. Conversely, MicroStrategy saw its heightened options volume driven by the August 08, 2025, $400 strike call options, with 6,127 contracts changing hands. This specific interest in long-dated, out-of-the-money calls points towards strong bullish speculation, indicating that a segment of investors anticipates a substantial appreciation in MSTR's share price above $400 by the expiration date. The data highlights targeted, high-conviction directional bets being placed through the derivatives market on these two specific equities, rather than a broad market trend.

Key Decisions for Investors

• Investors holding Arteris (AIP) should recognize the significant put volume at the $10 strike as a key risk indicator, suggesting a need to evaluate downside protection for long positions.
• The substantial call option activity in MicroStrategy (MSTR) at the $400 strike signals strong speculative interest and could be interpreted as a bullish indicator, though investors should be mindful of the high volatility implied by such large derivative bets.
• Traders should monitor the open interest for these specific AIP put and MSTR call contracts in subsequent sessions to confirm whether this volume translated into new positions, which would reinforce the bearish and bullish theses for the respective stocks.