BOX Exchange Adds Tuesday Options Expirations for ETFs
Published Date: 9/29/2026
Notice
Summary
BOX Exchange is updating its Short Term Option Series Program to allow more flexible trading days for certain Exchange-Traded Funds (ETFs). Now, options can expire on Tuesdays and Thursdays, not just Mondays and Wednesdays, giving traders more chances to buy and sell. This change kicks in right away and could make trading these ETFs quicker and more convenient for investors.
Analyzed Economic Effects
5 provisions identified: 3 benefits, 1 costs, 1 mixed.
More Hedging Choice; Potential Lower Premiums
The Exchange states the expanded expirations provide investors and market participants more choice and flexibility to tailor investment and hedging decisions and could allow a reduced premium cost of buying portfolio protection. BOX intends these additional weekly expirations to help market participants better manage risk exposure.
Tier 1 ETFs: Tuesday & Thursday Options
For certain large Exchange-Traded Funds (Tier 1), BOX will allow up to two Tuesday expirations and up to two Thursday expirations beyond the current week in addition to existing Monday and Wednesday expirations. These Tier 1 expirations use the same strike intervals as SPY/QQQ/IWM, are P.M.-settled, and will not be listed to expire on a business day that is the same day as standard Monthly or Quarterly option expirations.
Tier 2 ETFs: Additional Mon/Wed Expirations
BOX will create a Tier 2 category of Exchange-Traded Funds that can list up to two Monday expirations and up to two Wednesday expirations beyond the current week, provided the ETF has AUM greater than $25 billion and monthly options volume (sides) greater than 5 million, a position limit of at least 250,000 contracts, and participates in the Penny Interval Program.
Clear Quarterly Eligibility Rules Published
BOX will apply qualifying criteria each calendar quarter using values measured on the last trading day of the prior calendar quarter (AUM/NAV and market cap) and OCC data for the last month of the prior quarter for volume; the Exchange will publish the list of Qualifying Securities by the close of business on the first trading day of each quarter. Tier 1 criteria for ETFs include AUM > $50 billion and monthly options volume (sides) > 10 million; Tier 2 criteria include AUM > $25 billion and monthly options volume (sides) > 5 million; both tiers require a position limit of at least 250,000 contracts and participation in the Penny Interval Program.
Hard Limits and Scheduling Constraints
The expansion is limited: BOX will continue to permit no more than two Short Term Option Daily Expirations beyond the current week for applicable days per symbol, and is subject to the existing limit of 30 series per expiration date per option class. In addition, BOX will skip listing an additional expiry in a given week if that expiry would fall on the same day as standard Monthly or Quarterly option expirations, and will not list expiries for individual stock Qualifying Securities on days with post-close earnings announcements.
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