How to Identify Unusual Options Activity Before Making a Trade

Learn how to identify unusual options activity using volume, open interest, premium, sweeps, blocks, strikes, expirations, and price action.

Odd patterns in options activity can be one of the most fascinating indications in the options market. If there is a sudden increase in contracts at a specific strike price, if there is an unusually big premium transaction, or if there are repeated trades in the same expiration month, traders will halt and look into the situation. Yet there is an important difference between noticing unusual options activity and actually understanding what it means. The importance of that distinction lies in the…

What makes option activity unusual?

Unusual options activity usually means options trading that is different from the typical activity for a given stock, ETF, strike, or expiration. Such activity may be considered unusual because of extremely high volume, an unusually high premium, several large transactions, substantial trading in a contract which is normally not very active, or because the volume is large in comparison with the existing open interest. There is no single figure which automatically renders an options trade 'unusua…

What is the reason that traders keep an eye on unusual options activity?

Traders keep an eye on unusual options activity since it can show where there is substantial market participation. Rather than randomly going through thousands of option contracts, a trader can direct their attention to the stocks, strikes, and expirations that show activity differing from normal patterns. It can be used to spot possible areas of interest relating to earnings, corporate announcements, economic events, important technical levels, or changes in volatility. Moreover, it might show…

How to Identify Unusual Options Activity

The most practical thing to do is to consider a number of pieces of information at the same time rather than depending on a single odd figure.

Check Unusual Options Volume

Begin by looking at the volume of unusual options. Compare the current volume of the contract with its normal level of activity and check if the increase is due to calls, puts, a specific expiration date, or a particular strike price. A spike in volume becomes worth looking into when it is considerably different from normal activity; for example, an option which usually involves a few hundred contracts but at some point suddenly involves several thousand should be investigated. It is still impor…

Compare Volume With Open Interest

For this, compare the volume with the available options of open interest . This can give useful insight into how active a contract has been in the past. If a contract has an open interest of 1,500 but sees 10,000 contracts traded today, then this high ratio may draw attention since the volume of trading today is several times greater than the previously outstanding open interest. It is a mistake to think that volume exceeding open interest means that all the contracts are new ones, since open in…

Examine Trade Size and Premium

Another important element when carrying out an analysis of options flow is trade size. Although neither a transaction involving 10 contracts nor one involving 10,000 contracts should be regarded as bullish or bearish, the two situations should not be given the same amount of attention. Premium is also a factor. A method that traders use for estimating the gross premium linked to a transaction is:

Contracts × option price × 100

For example, a total of 1,000 contracts, each traded at a premium of $2.50, amounts to about $250,000 in option premium. Although that figure can make a transaction appear important, the premium by itself is not sufficient. A large premium transaction might be included as part of a hedge, a spread, a closing transaction, or some other strategy. The dollar value informs you about the scale of the transaction but not necessarily about its directional intention.

Study the Strike and Expiration

The expiration date and the strike price can have a substantial effect on the meaning of an options transaction. An option that is short-dated may behave quite differently from one of a similar size but which is several months before it expires, since short-dated options have a high sensitivity to movements in the price of the underlying asset and to time decay, whereas longer-dated contracts have a different exposure. You should also look at the stock price itself. Is the strike price close to…

Identify Sweeps, Blocks, and Execution Location

Then find out if the transaction is similar to an options sweep , a block trade, or normal market activity. The position of the transaction with respect to the bid and the ask can also give hints as to whether the original order was more aggressive. If the transaction is close to the ask, this might show that there was aggressive buying pressure, while if it is near the bid, it might indicate aggressive selling pressure. Yet this relates to the execution and not to proof of the overall position…

Look for Repeated Activity and Price Confirmation

Finally, look for repetition. A single odd transaction might be of interest. If some related transactions take place at the same strike prices or at the same expiry date, this gives a better reason for investigating them. Additionally, the transaction flow can be compared with the price, volume, and implied volatility of the underlying stock, and the general market conditions. If, while the share price is breaking through a key resistance level with heavy trading volume, there are also unusually…

Key Signs of Unusual Options Activity

Several characteristics commonly attract attention when traders search for unusual activity: Options volume far above normal levels Volume substantially exceeding existing open interest Large options premium transactions Repeated large trades Aggressive options sweeps Large block trades Concentrated activity at particular strikes Unusual activity in short-dated contracts Significant changes in implied volatility Flow that coincides with notable underlying price movement None of these characteris…

Options Sweeps vs. Block Trades

Although sweeps and block trades are both important terms in the area of options flow, they should not be regarded as being the same. A sweep of options usually describes an order arrangement intended to carry out the execution swiftly by means of the available liquidity and possibly involving several exchanges in order to secure fills. The aim is to achieve speed and effective execution rather than merely producing a big visible transaction at a single trading venue. In contrast, a block trade…

How to Tell Whether Options Flow Is Bullish or Bearish

The basic error is to think that calls mean bullish and puts mean bearish . That shortcut is unreliable. A trader who buys calls might have a bullish outlook, but another trader could be selling calls in relation to a holding of the stock. In a similar way, a trader who buys puts may be showing a bearish attitude, while another investor may be buying puts simply as a form of portfolio insurance. To evaluate potential direction, traders commonly examine: Call versus put activity Whether the trans…

Example of Unusual Options Activity

Imagine a fictional stock called ABC Technologies , trading at $100. In a typical session, the $110 call option, which is expiring in 45 days, usually sees fewer than 300 contracts traded. One afternoon, however, a trader finds that 4,500 contracts have already been traded, even though the previous level of open interest was 900 contracts. The price of the options is currently hovering at $3.00, which results in a total gross option premium of about $1.35 million on 4,500 contracts. At first sig…

How an Options Flow Scanner Can Help

It is difficult to keep a manual eye on thousands of contracts during the trading session. A scanner for options flow can reduce the amount of work involved by selecting out market activity based on the criteria that are important to the trader. For example, a scanner tool used for options trading can help identify transactions according to various factors such as volume, premium, contract size, strike price, expiration, the number of calls versus puts, sweeps, blocks, and other flow characteris…

Common Mistakes When Reading Options Flow

A major error is to suppose that all large transactions are intended to have a direction. Large trades may in fact be hedges, spreads, closing positions, arbitrage positions, or components of complex portfolios. While size attracts attention, it does not automatically indicate the intention behind them. It is also wrong to regard calls as bullish and puts as bearish. Since options strategies can involve multiple contracts and positions, drawing a misleading conclusion by focusing on a single leg…

Unusual Options Activity Is a Starting Point, Not a Trade Signal

The best approach when considering unusual options activity is to use it as a basis for further research. The kind of activity shown in options flow can indicate that something warrants attention since it can point out unusual volume, large premium activity, concentrated strikes, or repeated transactions. However, the trader has to decide for himself whether the activity is in line with the overall market situation. It involves combining flow information with price action, options volume, open i…

Final Checklist Before Acting on Unusual Options Activity

Before considering any trade based partly on options flow, ask: ☐ Is the options volume genuinely unusual for this contract or underlying? ☐ How does volume compare with options open interest ? ☐ How large is the total option premium? ☐ Is the transaction a sweep, block, or another type of trade ? ☐ Where did the trade execute relative to the bid and ask? ☐ What is the strike price? ☐ How much time remains until expiration? ☐ Is the activity concentrated or repeated? ☐ What is the underlying sto…

Conclusion

The process of learning to spot unusual options activity is not so much a matter of relying on a single special sign as it is about learning to put together various pieces of market information. Traders can use unusual volume, large premium transactions, options sweeps, block trades, concentrated strikes, unusual expirations, and volume-to-open-interest relationships to spot activity that merits investigation. Yet none of these factors on its own shows that a stock is about to rise or fall. A be…