---
title: "Trending | SNDK Plummets 5% on Monday, Some Put options Soar 1000%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/286852439.md"
description: "On May 18, Eastern Time, Sandisk options saw a total of 137994 contracts traded, with calls accounting for 49% and puts making up 50%."
datetime: "2026-05-19T04:18:13.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286852439.md)
  - [en](https://longbridge.com/en/news/286852439.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286852439.md)
---

# Trending | SNDK Plummets 5% on Monday, Some Put options Soar 1000%

On May 18, Eastern Time, Sandisk options saw a total of 137994 contracts traded, with calls accounting for 49% and puts making up 50%.

Sandisk has 599467 contracts outstanding, with calls accounting for 45% and puts making up 54%.

The top volume gainer was the 1500 dollars Call option expiring on May 22, 2026, with 3050 contracts traded.

On the news front, Based on recent key news:

1\. May 16, Sandisk's stock experienced a significant drop as analysts noted that its current price is much higher than the average estimate, which is about 25% lower. This discrepancy has raised concerns about overvaluation. Source: MarketBeat

2\. May 18, Sandisk announced its participation in several upcoming investor conferences, which could have influenced investor sentiment and contributed to the stock's volatility. Source: Businesswire

3\. May 19, the delay in a planned attack on Iran by President Trump led to a mixed response in the stock market, affecting tech stocks like Sandisk negatively. Source: MarketBeatAI sector remains volatile amid geopolitical tensions.

Please note: The chart below does not include options expiring within five days.

![image](https://assets.lbctrl.com/h5hub/optrank/images/2026-05-19/ST_US_SNDK_en.png)

### Related Stocks

- [SNDK.US](https://longbridge.com/en/quote/SNDK.US.md)

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