Palantir Technologies Inc. closed at USD 173.31, up 3.64%.

Displayed block activity showed a dominant bearish tilt, with a $1.23 million net debit put spread standing as the largest trade and a $1.03 million short call following closely. The flows point toward downside positioning and capped upside expectations rather than aggressive bullish conviction.

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Options Indicators

PLTR’s implied volatility is 51.00%, while its IV percentile is just 15.54%, indicating that although the absolute IV level is not low, it sits near the lower end of its own historical range. With the IV/HV ratio at 1.02, implied volatility is roughly in line with realized volatility, suggesting options are currently priced on the cheap side rather than at a meaningful premium. The Call/Put volume ratio is 2.00.

Large Trades

A put spread package with a net debit of $1.23 million was the largest displayed trade, structured as a three-leg downside position expiring on 2026-09-18: long 170.0 puts twice and short 157.5 puts in triple size. With PLTR referenced at 173.31, both strikes were out of the money at execution, and the combination is best read as a bearish put spread variant established for a net debit rather than outright premium selling. Strategically, this expresses a directional downside bet into September 2026 while partially offsetting the cost of the long 170 puts through the short 157.5 puts, suggesting the trader is targeting weakness down toward the lower strike rather than positioning for an unlimited collapse.

A single-leg call sale worth $1.03 million was the other displayed large trade, involving the sale of 175.0 calls expiring on 2026-10-16. Since the 175.0 strike sits just above the 173.31 reference price, the calls were out of the money when traded, and the short-call structure carries a moderately bearish to capped-upside view. In strategic terms, this kind of trade typically reflects premium collection or a view that PLTR will struggle to break materially above 175 by expiration, reinforcing a restrained outlook rather than aggressive bullish positioning.

Overall, the large-trade flow leans bearish on PLTR. The dominant themes are downside-oriented put structures and upside premium selling, which together imply that larger traders are either positioning for weakness or expecting the stock to remain capped over the relevant expirations. The tone is not one of panic, since the biggest put package was a defined-risk spread rather than an outright crash bet, but the balance of block activity still points to cautious-to-negative institutional sentiment.

Strategy Reference

For a low assignment probability on the short side, sellers may consider the 160.00 put strike for nearer-dated expirations, while traders seeking defined risk without posting excessive margin can replicate the observed sentiment with a bear put spread such as long 170.00 put versus short 157.50 put.