Ever wonder why option premiums rise before binary events in the stock market?
It’s not uncommon for option prices to spike ahead of major announcements like:
- Earnings Reports
- Federal Reserve Meetings
- Key Economic Data Reports
For context, I like to describe option premium as the difference between the contract’s price and intrinsic value. It’s essentially what buyers pay for the “hope” that an option gains more value before it expires. Another way to think of it is the “extra value” of an option contract.
If you want more information about option premium, check out this article I wrote about the correlation between the Delta Greek and option premium.
More experienced traders typically understand why binary events drive up option premiums. However, newer ones might be completely unaware. Some even get sidelined or discouraged from trading if their lack of awareness or understanding leads to untimely losses.
In a nutshell, there are three main reasons why option premiums rise ahead of binary events:
- Increased Implied Volatility
- Risk Hedging By Market Makers
- Increased Demand For Options
I’ll explain what each of these binary events are, why they cause option premiums to rise, and list a few upcoming ones to put on your radar.
What Are Binary Events?
In a nutshell, a binary event is a specific, known future announcement or development that is expected to cause a significant, immediate, and dramatic movement in a stock price. They usually have two likely outcomes: A sharp rise or a decline in stock prices.
When defining binary events, it’s important to emphasize the “specific, known future announcements or developments” part in this definition. These are scheduled events that traders know about in advance—not abrupt or unexpected occurrences like black swan or geopolitical events.
There are three main types of binary events:
Company-Specific Events
These are major reports, announcements, or outcomes that pertain to a specific company.
They can include:
- Earnings Announcements
- Product Launches
- Company Milestones
- Mergers & Acquisitions
- Legal or Litigation Outcomes
These events directly impact a company’s fundamentals and can cause major shifts in option premiums as traders anticipate the outcomes. On select occasions, these events can affect option premiums in an entire sector or the broader market.
Regulatory & Policy Events
Option traders will closely monitor major decisions and events from government entities and regulators.
The can Include:
- FDA Approvals or Denials
- SEC Rulings
- New Regulations or Policy Changes
- Fed Rate Decisions
Regulatory or policy-related events can affect option premiums in entire industries or the broader market. The anticipation leading up to them creates uncertainty that can cause major volatility spikes across multiple stocks.
Economic Data Reports
Every month, the government releases reports, whose data reflects the state and health on specific aspects of the economy.
They can include:
- Inflation (CPI) Reports
- GDP
- Employment Numbers
- Nonfarm Payrolls
These economic reports influence market-wide trends, often moving indices, sectors, and derivative pricing. Many financial entities release projections for these reports ahead of time, during which option premiums react accordingly.
Now that I explained the key terms you need to know, let’s look at three of the biggest reasons why option premiums rise ahead of binary events.
Increased Implied Volatility
Before a binary event, traders face a high degree of uncertainty about which way a stock will move. Since the outcome can cause a sharp upward or downward price swing, the market anticipates larger-than-normal volatility.
This expectation is reflected in Implied Volatility (IV).
For those unfamiliar, Implied Volatility represents how much the market expects the price of an asset to fluctuate. It essentially reflects market sentiment regarding uncertainty or potential risk.
Higher IV indicates larger expected price moves and more expensive options, and vice versa for lower IV.
As IV rises, the cost of options increases—even if the stock price hasn’t moved. This happens because options are essentially insurance against potential large swings.
In other words, traders are willing to pay more for the right to buy or sell the stock, since the probability of a significant move—and potential profit—is higher.
This is why option premiums often spike in the days or hours leading up to a binary event.
Risk Hedging by Market Makers
Market makers are firms or individuals that provide liquidity to financial markets by continuously quoting both buy (bid) and sell (ask) prices. They aim to profit from the spread between these prices, while ensuring that traders can always enter or exit positions. They also help stabilize markets by managing risk and facilitating smooth trading, even during periods of high volatility.
Ahead of a binary event, market makers face the risk of sudden, large price swings that could result in significant losses. To protect themselves, they might adjust option prices upward, increasing premiums to account for this added risk.
Essentially, higher premiums act as a buffer for market makers. It compensates them for the possibility that an underlying stock could move sharply in either direction once the event occurs.
This hedging behavior ensures they can manage risk, while still facilitating trades. As a result, even before the binary event unfolds, traders see option prices rise—not because the stock has moved yet, but because the market is pricing in anticipated volatility and risk exposure.
Increased Demand for Options
To reiterate: Before a binary event, traders expect a stock could experience a significant price swing in either direction.
Because of this expectation, traders try positioning themselves to potentially profit from the anticipated upside—or get protected against downside risk. Since more traders are buying calls and puts ahead of the event, option premiums naturally rise, even before the outcome is known.
The increase in premiums reflects two things:
- The heightened demand for options
- The market’s acknowledgment that the underlying stock could move sharply once the event occurs
It’s essentially a fundamental law of economics being put into action: When demand for something goes up, its prices follow suit.
Traders are basically willing to pay extra for the opportunity to capture these potential gains. That’s why options often become more expensive leading up to binary events.
3 Upcoming Binary Events to Watch
Before we wrap things up, let’s look at three binary events to watch in the coming weeks. I’ll explain what each one is, how it could impact the market, and why you could see option premiums increase ahead of time.
Walmart Q4 2025 Earnings (February 19)
This is the scheduled quarterly earnings report from Walmart (WMT). It will reveal the company’s profits, revenue, guidance, and other key financial metrics for WMT’s performance in Q4 2025.
Potential Market Impact: Walmart is one of the world’s largest retailers and a component of major stock market indices. WMT’s Q4 earnings results can influence broader market sentiment. Strong numbers can lift retail and consumer-focused stocks. Weak results can be more detrimental.
Why Option Premiums Could Increase: Earnings reports have one of two outcomes: Beat or miss. As a result, market participants will more than likely expect to see increased volatility. As traders position themselves in anticipation of these large price swings, calls and puts for WMT could become more expensive leading up to their Q4 earnings report. Since Walmart is a major retail name, you could see option premiums increase in multiple retail and consumer discretionary stocks.
Personal Consumption Expenditures (PCE) Report (February 20)
The Personal Consumption Expenditures (PCE) Price Index is a monthly inflation report released by the U.S. Bureau of Economic Analysis that measures changes in prices consumers pay for goods and services. It includes the “core PCE” figure, which strips out volatile food and energy costs and is the Federal Reserve’s preferred gauge of underlying inflation.
Potential Market Impact: Markets pay close attention because this report influences Fed expectations on interest rates. Cooler-than-expected inflation may fuel hopes for rate cuts, lifting stocks. Hotter readings, on the other hand, can raise fears of tighter policy and trigger sell-offs across equities and risk assets. The S&P 500 and other broad indices have historically reacted sharply to PCE surprises, with traders bracing for big moves in either direction.
Why Option Premiums Could Increase: As the PCE report approaches, traders anticipate significant potential price swings. Because of this, the demand for options grows for both hedging and speculative positioning. That increase in demand, along with uncertainty over inflation outcomes, drives Implied Volatility higher—which in turn, could raise option premiums before the event.
Federal Reserve Interest Rate Decision (March 17-18, 2026, Expected)
The Federal Open Market Committee (FOMC) meets regularly. They decide whether to raise, lower, or keep interest rates unchanged, which directly impacts borrowing costs and overall financial conditions. The decision is announced publicly, often with a press conference explaining the rationale and future policy guidance.
Potential Market Impact: Fed rate decisions can move broad markets and individual sectors. A surprise hike can push equities lower as borrowing costs rise and risk appetite falls. On the other hand, a rate cut or dovish guidance can boost stocks by signaling more laid back monetary conditions and supporting economic growth.
Why Option Premiums Could Increase: Ahead of the decision, uncertainty about the outcome leads traders to position for anticipated moves in either direction. The heightened demand for options to hedge or speculate drives Implied Volatility higher. This in turn can lead to an increase in option premiums even before the announcement.
The Bottom Line
To bring everything full circle, option premiums rise ahead of binary events because the market is pricing in uncertainty, potential large moves, and the risks faced by market makers. Traders anticipate that events like earnings, economic reports, or Fed decisions could trigger dramatic price swings. As a result, they leverage options as speculative tools and hedges, which increases demand.
Understanding these dynamics is crucial for both new and experienced traders. It explains why options can become more expensive ahead of a binary event—even before the underlying stock moves.
By keeping an eye on upcoming binary events, you can anticipate shifts in option premiums with more clarity. They can help you make informed decisions, position yourself to manage risk, and potentially capture short-term opportunities.
