Wall Street Pushes Back on Tough Margin Rule for Zero-Day Options

Wall Street brokers and dealers are pushing back on a new margin rule that the world’s largest derivatives-clearing house has proposed to address the risk from the boom in zero-day options even after some revisions.

Options Clearing Corp. should consider rolling out a new add-on charge — one that’s designed to mitigate spillovers in the event of market turmoil — in phases before sunsetting it within two years, the Securities Industry and Financial Markets Association, or SIFMA, wrote in a letter Thursday.

The clearing house also shied away from addressing other industry concerns, such as whether OCC has plans to establish functionality that would allow member firms to better understand which of their clients are generating the highest intraday risk exposures, according to SIFMA. With OCC scheduled to switch to a new clearing and settlement system later this year, there is also question of whether a more-tailored, risk-sensitive intraday margin approach would be available, the industry group said.

“We continue to remain extremely concerned that OCC will never update or change the Intraday Risk Charge once it has been implemented even when it has the capability to do so, despite the blunt nature of the charge in its current form or its potential impact on the listed options market,” Ellen Green, managing director of equities and options market structure at SIFMA, and Joseph Corcoran, associate general counsel for the group, wrote in the letter.

The comments come weeks after OCC dialed back some harsh elements in a revised proposal on the intraday margin rule and gave member firms more time to adjust to the changes. The clearing house’s initial plan was criticized by firms including Matrix Executions LLC and Optiver, who said the new rules raise unwarranted burdens for the industry and hurt competition.

The back and forth highlights the struggle to reach consensus on securing market stability amid the frenzy for trading option contracts that expire within 24 hours. While derivatives with zero days to expire, known as 0DTE, now make up half of the S&P 500’s total options trading, the risk associated with them has yet to be captured by OCC’s existing model. Currently, the margin calculation is based on positions at the end of the day, when those contracts would have been exercised or expire.

An OCC spokesperson didn’t respond to an email seeking comment about SIFMA’s latest letter.