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

Options expiring today: $S&P 500 Index (.SPX.US)$ Option trading volume distribution: There is a divergence between call and put distributions, with the peak of put options at 6650 points and the peak of call options at 6800 points.

Options expiring today: $NASDAQ 100 Index (.NDX.US)$ Option trading volume distribution: The peak of call options is 25,200, while the peak of put options is at 24,700 points.

2. US Stock Options Trading Leaders
1、 $NVIDIA (NVDA.US)$ The previous trading day saw a decline of 3.81%, with the put/call ratio decreasing from the prior day and trading volume rising slightly.

Observe the PUT options expiring this Friday, with several doubling in value.

Observing unusual large option trades, major investors leaned bearish just before the market close.

2、 $Tesla (TSLA.US)$ The previous trading day saw a decline of 4.62%, with the put/call ratio increasing from the prior day and trading volume rising.

Observe the PUT options expiring this Friday, with multiple contracts doubling in value.

Observing unusual large option trades, major investors leaned bearish just before the market close.

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 Factors
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 mispricing, 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.
Editor/Lee