//Understanding Open Interest vs Volume

Understanding Open Interest vs Volume

Volume, on the other hand, changes constantly as trades are executed throughout the day. Falling prices in a downtrend while open interest is on the decline indicates disgruntled holders forced to liquidate positions and is a bearish sign. Rising prices in an uptrend while open interest is on the rise indicates that new money is coming into the market (reflecting new buyers). Rising open interest usually means that there is new buying happening, which is a bullish trend.

To enter into a short call, you’d place an order to sell five calls to open, so you’re now short five calls. If you want to increase from 5 to 7, you’d place an order to sell two calls to open, and you’re now short seven calls. If you sell another 3 calls to open, you’d be short 10 calls.

Open interest, the total number of open contracts on a security, applies primarily to the futures market. Open interest is a concept all futures traders should understand because it is often used to confirm trends and trend reversals for futures and options contracts. Here we take a look at what information open interest holds for a trader and how traders can use that information to their advantage. The higher the trading volume, the more significant it is, and vice-versa. Price action increasing during an uptrend and rising open interest are interpreted as new money coming into the market. If the price action is rising and the open interest and volume are declining, short sellers covering their positions are causing the price rally.

Volume, when looked at in conjunction with price, can often act as a crystal ball of market sentiment. A sudden increase in volume with a significant price rise could indicate a bullish market sentiment. Open interest also has a special relationship with price movements. Let’s say the price of Techtron contracts is rising, and so is open interest.

  1. Additionally, it’s harder to get out of option positions at good prices when volume and open interest are low, which means losses may grow larger due to the inability to exit a position.
  2. Thus, analyzing volume and open interest in options trading are two ways that an investor can look at current options activity.
  3. As an example, let’s say that open interest for a particular option begins the day at 200.
  4. Technical analysts use open interest and other metrics to gauge the strength of a market trend.

The more options volume there is for a contract, the more liquidity exists. These contracts are much easier to enter and exit because more market participants are transacting in the contract. Open interest decreases when buyers and sellers close their existing positions. The closing orders offset and reduce the contract’s open interest because that contract no longer exists. Option open interest increases when traders create new contracts that did not previously exist.

” Let me attempt to answer these questions and more in this chapter. After reading this, you will be able to interpret OI data in conjunction with the Volumes to make better decisions while trading. Also, I would suggest you refresh your understanding on Volumes from here.

Options Trading for Beginners

Therefore, it is used as an indicator of the liquidity and market activity for a security. High or rising open interest indicates that there is a large number of buyers and sellers for that security. This implies that trading in that security will be easier and quicker since there is an influx of money flowing in the market. Trading volume is a measure of the number of shares or contracts traded in a given period. So, the day’s trading volume is the total number of shares or contracts traded that day. It quantifies the level of activity for a specific stock (in the equity market) or contract (in options and futures markets).

This metric is a significant indicator of the activity and liquidity of the options market for a particular security. It represents the contracts in the market that are not yet closed; it increases when new contracts are created or opened. The increased https://1investing.in/ number of open interests would mean that there are more buyers and sellers for a particular security. Open interest increases when new contracts are created and decreases when positions in an existing contract are closed by the buyer and seller.


Generally speaking, a high volume and high open interest both indicate a liquid market with many buyers and sellers for a particular option. Changes in open interest and volume can also be used to confirm market sentiment. The volume and open interest metrics provide information about the level of buying and selling underlying a potential price move.

What to Watch Out for When Using Open Interest and Volume

Volume is the total number of options contracts bought and sold during a specified period, usually a single trading day. It is normally updated throughout the trading day as trades are executed. Comparing open interest with volume (the total number of options and futures contracts that have traded on a given day) can provide insights into the strength or weakness of a price move. For example, increasing prices, along with increasing volume and open interest, can signal the start of a new uptrend.

Futures and options are forms of legally binding agreements, or contracts. They allow traders to buy or sell securities, such as stocks or commodities, at a predetermined price on or by a predetermined date. The value of these contracts is essentially determined by the value of the underlying assets. Generally, low open interest indicates that traders or investors aren’t taking active positions in a particular options contract. If you see low open interest increase, you’ll know traders are initiating new positions. That could mean growing interest and potentially a rising price (if they are buying rather than selling).

It’s like people coming and going at a party – lots of activity, but the net change in guests might not be large. Open interest and volume are two important indicators of market activity. Open interest represents the number of open contracts for a particular security or market. Volume, on the other hand, represents the number of units traded in a particular security or market. Another difference is that open interest is specific to a particular security while volume can be measured across all securities traded in a market.

Marketing Agent is independent and is not an
affiliate of tastytrade. Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and behavioral finance. Adam received his master’s in economics from The New School for Social Research and his Ph.D. from the University of Wisconsin-Madison in sociology. He is a CFA charterholder as well as holding FINRA Series 7, 55 & 63 licenses.

When open interest is high, it means that there are more contracts being traded, and this can lead to increased volatility. High open interest can also be an indicator of a trend change, so it is important to pay attention to open interest levels when trading. Volume begins at zero each day, and every trade counts toward volume. For instance, if you Buy 10 ABC May $100 calls and another trader sells 10 ABC May $100 calls, the volume is 10. The volume isn’t 20 because it took a buyer and a seller to complete the trade. Only 10 contracts traded, so that’s the volume for that trade.

The next day an investor buys 10 options contracts and another investor sells 10 options contracts. As a trader, you have to use every piece of information at your disposal open interest vs volume to ensure an accurate analysis of the market. Open Interest and Volume are both important resources for your market analysis if you’re trading options or futures.

No new money means no new open interest and so the OI stays the same, but there has been trading activity and so the volume increases by 1. Open interest and volume are both important indicators when it comes to identifying trading opportunities. Open interest is the number of contracts that are outstanding and not yet closed, while volume is the number of contracts that have been traded in a given period of time. Open interest is the number of outstanding contracts that have not yet been settled.