A beginner's guide to unusual options activity - what is options flow?

Learn what options flow is, how to read unusual options activity, and understand sweeps, block trades, volume, premium, and market sentiment with this beginner-friendly guide.

What Is Options Flow?

Suppose you are observing a stock that has been trading steadily over several days, and suddenly a large volume of options contracts are traded at a single strike, with the total premium involved being considerably higher than usual. The first thing you might ask yourself is "Who is carrying out these transactions and what information do they have?" This question forms the basis of options flow analysis. By options flow is meant the series of options trades that have been executed and the variou…

Options Flow vs. Normal Options Activity

Normal options activity takes place every trading day, and in the case of heavily traded stocks and indexes, thousands of contracts can be traded without anything particularly unusual occurring. In contrast, unusual options activity means trading that is distinct when compared to the usual behaviour of a stock, a contract, or a market. Present options-flow resources usually assess a number of factors, including relative volume, open interest, premium, execution characteristics, and order structu…

What Is Unusual Options Activity?

Unusual options activity , usually referred to as UOA, is that aspect of options trading which differs from the usual level of activity in a contract or in the underlying stock. A scanner might indicate a contract has become the subject of unusual activity because the volume is very high, or because the premium in question is considerable, or because the transaction in question is extremely large, or because the way in which it has been executed is similar to an aggressive sweep or a large block…

Why Do Traders Watch Options Flow?

The chief draw of options flow trading is that it provides traders with an additional means of observing what is happening in the market. Rather than relying solely on a stock chart, they can look at the way participants are trading options relating to that stock. From this, they can see where substantial premium is being traded, which strike prices are active, how far out traders are positioning, and whether the activity is concentrated in calls, puts, or in certain expirations. For a trader wh…

Key Things to Look for in Options Flow

It is much simpler to use the reading options when you know what each individual data point stands for. Although a flow scanner might show a large number of figures, new learners do not need to understand all of them at the same time. You should begin by looking at the trade size, the premium, the volume, the open interest, the strike price, the expiration date, whether the option is a call or a put, the execution price, and the implied volatility.

Trade Size, Premium, Volume, and Open Interest

The size of a trade shows you how many contracts have been dealt in. Although larger transactions tend to draw more attention, the size has to be assessed in relation to the usual level of activity in the underlying asset. For example, a trade of 5,000 contracts in a highly liquid index option would be normal, whereas the same volume in an illiquid small-cap option would be considered extraordinary. The premium price is the amount paid for an option. If traders refer to a large premium transacti…

Strike, Expiration, Calls, Puts, and Implied Volatility

The strike price is the price at which the holder of the option acquires the contractual right to buy or sell the underlying, according to whether it is a call or a put. It enables traders to see where option activity is concentrated in relation to the present stock price. The expiry date is just as important; an extensive options position which expires in a few days will have a completely different risk profile to a similar one expiring six months later. Options with a short time to expiry can…

What Are Options Sweeps?

An options sweep usually involves splitting an order across several exchanges or available sources of liquidity so that a large position may be filled quickly. The key feature is urgency: rather than waiting patiently for one exchange to supply the required amount, the order can actively access liquidity on a number of different markets. One reason why traders keep an eye on options sweeps is that a trader who values speed might be prepared to take less favorable prices in order to set up the po…

What Are Options Block Trades?

A block trade in options is a big transaction which is carried out as one large deal, usually as a result of negotiation. Such trades may involve huge quantities and are often linked with major participants, but the fact that a large block is involved does not necessarily show the participant's view as to the direction of the trade. There is a significant difference between block trades and sweeps. While a sweep places a priority on speed when dealing through a number of venues, a block involves…

The comparison between bullish and bearish options flow.

A question which is very common among beginners is this: "How can I tell whether the options flow is bullish or bearish?" The brief answer is that you need more information than just seeing a call or a put. A bullish inclination might result from buying a call aggressively near the ask price, while buying a put aggressively near the ask price might indicate a bearish inclination. However, these interpretations are merely the starting point. A call could have been sold as part of a covered-call s…

How to Read Options Flow Step by Step

When learning to read options flow , it is better to follow a repeatable process than to respond emotionally each time there is a large trade. Step 1: Identify the underlying stock. Start by understanding what company or index the option represents. Look at its current price, recent price action, liquidity, and major upcoming events. Step 2: Identify the call or put. Determine which type of contract is traded, but do not immediately label it bullish or bearish. Step 3: Check trade size and premi…

Example of Reading Options Flow

Let us imagine a company known as ABC Corp. Its stock is currently trading at $100 . You observe that a great many call options are being traded at a strike price of $105, with about 30 days before they expire. The volume is much higher than usual, and the total amount of premium involved is considerable. At first sight, the situation might appear to be bullish options flow. But a careful trader would hesitate before coming to a conclusion. The trader could look into whether the calls are being…

Can Options Flow Predict Stock Prices?

No, options flow cannot reliably predict future stock prices by itself. This might well be the most important lesson set out in the whole of this guide; while options flow can offer useful information regarding market activity, it cannot give a guaranteed prediction as to what will happen next. There are several reasons. One is that you usually can't see the full portfolio associated with a single options transaction. A big options position might be offset by a holding of stock, by futures, by a…

Options Flow vs. Options Volume

Options flow and options volume are related, but they are not the same thing. Imagining options volume as equivalent to counting the number of cars that pass over a highway, options flow is more like observing those cars and finding out where they are coming from, where they are going, how fast they are travelling, and whether a certain pattern is unusual. It is by no means uncommon to have a contract with a high volume of trade, since some highly liquid contracts see very large amounts traded e…

What Is an Options Flow Scanner?

An options flow scanner is a tool that helps traders to keep an eye on options transactions without having to manually check each and every contract in the market. Rather than scrolling through thousands of trades, they can make use of filters and alerts in order to concentrate on the transactions that meet the criteria that have been selected. A useful unusual options activity scanner may organize information such as: Large premium transactions Unusual volume Options sweeps Block trades Call an…

How Options Flow Can Support the Wheel Strategy

The Wheel strategy can also be given additional research input by means of options flow. Generally, the Wheel involves selling put options on stocks which a trader is willing to own and, if shares are assigned, possibly selling covered calls on those shares. When a trader is considering a cash-secured put, options flow would be one of the factors that he or she looks at. The trader may look at recent options activity, liquidity, the premium, implied volatility, the stock's fundamentals, the tech…

Common Mistakes When Reading Options Flow

A major error is to suppose that all large trades are made by institutional investors, since large transactions can be initiated by various kinds of market participants and the trade on its own doesn't give a full description of the individual or organisation involved. The error lies in the assumption that all calls are bullish and all puts are bearish; it fails to take into account selling strategies, hedges, spreads, rolls, and multi-leg positions. In order to interpret a call transaction corr…

Conclusion

Options flow is useful because it helps traders see where unusual activity is happening in the options market. But the real value does not come from simply spotting a giant call or put transaction. It comes from understanding the context surrounding that transaction. A large trade may be a directional bet, but it may also be a hedge, spread, covered call, roll, portfolio adjustment, or market-making response. That is why a good options flow analysis combines trade size and premium with volume, o…