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I. Overview of U.S. Stock Index Options
The trading volume in the current US stock index options market has slightly increased, while the put/call ratio has declined.

Options expiring today: $S&P 500 Index (.SPX.US)$ Option trading volume distribution: Discrepancies exist between Call and Put distributions, with the Put peak at 6900 points and the Call peak at 6965 points.

Options expiring today: $NASDAQ 100 Index (.NDX.US)$ Option trading volume distribution: The Call peak is at 25800, while the Put peak is at 25260 points.

2. US Stock Options Trading Leaders
1、 $Tesla (TSLA.US)$ In the previous trading session, there was a 4.14% decline. The ratio of Puts to Calls rose on the prior day, along with an increase in trading volume.

Observing the PUT options expiring this Friday, multiple contracts have doubled in gains.

Monitoring abnormal large option trades, major accounts were predominantly bearish as the market approached the closing bell.

2、 $Micron Technology (MU.US)$ In the previous trading session, there was a 10.02% increase. The ratio of Puts to Calls fell on the prior day, while trading volume rose.

Observing the CALL options expiring this Friday, multiple contracts have surged by 11 times.

Monitoring abnormal large option trades, major accounts showed divergence as the market approached the closing bell.

Top 10 Most Actively Traded US Stock Options

Top 10 most volatile US stock options (underlying market cap > USD 10 billion and options trading volume > 100,000 contracts)

3. US ETF Options Trading Volume Rankings
Top 10 US ETF options by trading volume

Top 10 US Equity ETFs by Implied Volatility (Criteria: Market Cap > USD 10 billion)

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Risk Warning
An option is a contract that grants the holder the right, but not the obligation, to buy or sell an asset at a fixed price on a specific date or at any time before that date. The price of an option is influenced by various factors, including the current price of the underlying asset, the strike price, the time to expiration, andImplied volatility。
Implied volatilityIt reflects the market's expectation of volatility in options over a certain period. This data is derived inversely from the BS option pricing model and is generally regarded as an indicator of market sentiment. When investors anticipate greater volatility, they may be more willing to pay higher prices for options to hedge risks, thereby leading to a higherImplied volatility。
Traders and investors useImplied volatilityto evaluateoption pricethe attractiveness, identify potential mispricings, and manage risk exposure.
Disclaimer
This content does not constitute any offer, solicitation, recommendation, opinion, or guarantee regarding securities, financial products, or tools. The risk of loss in trading options can be substantial. Under certain circumstances, the losses you incur may exceed the initial margin amount deposited. Even if you set contingency orders, such as “stop-loss” or “limit” orders, they may not prevent losses. Market conditions may make it impossible to execute such orders. You may be required to deposit additional margin within a short period. If you fail to provide the required amount within the specified time, your open positions may be liquidated. Nevertheless, you will remain responsible for any shortfall in your account resulting from such liquidation. Therefore, before engaging in trading, you should thoroughly study and understand options and carefully consider whether such trading is suitable for you based on your financial situation and investment objectives. If you trade options, you should be familiar with the procedures for exercising options and the rights and obligations associated with exercising options and their expiration.
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