Weekly Options
Weekly options are short-dated options contracts that expire every Friday (or Monday and Wednesday in some cases for major products like SPY and SPX), providing traders with access to shorter-term directional and income-generating strategies with a higher frequency than traditional monthly options.
The CBOE introduced weekly options in 2005 as an experiment in shorter-duration contracts, initially listing weeklies only on S&P 500-related products. Their popularity grew rapidly among both retail traders and institutional hedgers, and the CBOE expanded weekly listings to hundreds of individual equities, sector ETFs, and other indexes over the following decade. Today, products like SPY (SPDR S&P 500 ETF), QQQ (Invesco Nasdaq-100 ETF), AAPL, and TSLA have active weekly options markets with substantial daily volume and open interest.
Weekly options differ from standard monthly contracts in their time horizon. Where monthly options expire on the third Friday of each calendar month, weekly options expire on the remaining Fridays of the month (and sometimes on Mondays and Wednesdays for the most liquid products). This creates a continuous cycle of near-term expiration dates that traders can use to fine-tune the timing of positions.
The appeal of weekly options for income traders is the frequency of premium collection. A covered call writer who traditionally sold monthly calls once per month can instead sell four to five weekly calls over the same period, with the potential to collect premium more frequently and adjust the strategy based on evolving market conditions. However, weekly options have significantly less time value per contract than monthly options, and the theta decay is concentrated into a shorter window — making timing and active management more critical.
Zero-day-to-expiration (0DTE) options — which expire on the same day they are traded — have become an enormously popular subset of weekly options. Products like SPX and SPY now offer multiple expirations per week, and 0DTE volume has grown to represent a substantial fraction of total S&P 500 options volume. These ultra-short-dated contracts offer extreme theta decay and gamma sensitivity, making them attractive for day traders but also significantly riskier than longer-dated positions.
Regulators including the SEC and CBOE have monitored the growth of weekly and 0DTE options for systemic risk implications. The concentration of short-dated gamma can amplify intraday price swings in the underlying if large numbers of market makers must simultaneously hedge rapidly changing delta exposures. For individual traders, weekly options are powerful tools when used with a clear understanding of how accelerated time decay, elevated gamma near expiration, and pin risk all interact in the final hours before settlement.