24/7 Trading Needs a Weekend Liquidity Backer, and Wall Street Hasn't Picked One

CME opened its cryptocurrency derivatives markets on weekends in May, yet settlement remains on a business-day schedule — a gap that captures the central unresolved question in Wall Street's push toward round-the-clock trading: who supplies the cash when the main wholesale payment systems are closed.

For an investor, weekend access means cutting a Bitcoin position on Saturday rather than waiting until Monday. For the companies behind that trade, it means managing obligations that cannot settle for two more days, and deciding how much new business they can absorb before replenishing cash or collateral.

Two recent episodes show what is actually at stake.

What happened when settlement slipped in June?

Two major DTCC subsidiaries postponed a day's securities settlement in June, leaving cash stranded in the central counterparty's account at the Federal Reserve and reducing the reserves available to banks. The mechanics matter. When banks send, say, $10 billion to a clearing firm and an operational problem holds up the return payment, bank reserves fall by $10 billion and the firm's Fed balance rises by the same amount. The cash still sits at the Fed, but in an account the banks cannot draw on to make payments.

DTC and NSCC invoked their market-disruption rules and obtained several extensions from the Federal Reserve while they tried to reverse the trades. They ran out of time at the final 8:30 p.m. deadline and carried the balances into June 30, when settlement for both days completed.

The Chicago Fed's November account of the disruption noted the reserve drain but gave no dollar figure. Cindy Hull, a Chicago Fed official, offered two possible reasons short-term rates held steady: companies trusted the payments would go through, and the banking system held enough reserves to absorb the temporary drop.

DTCC's July 9 follow-up allocated some of the cost. Companies still owed money received interest based on what DTCC earned on the cash overnight, while those owing money faced no financing charges. DTCC said it would consider claims case by case when losses tied directly to the delay materially exceeded the interest payment.

What does an extra day of trading cost?

Institutions that buy and sell through DTCC's clearing subsidiary NSCC can offset what they owe against what they are owed. NSCC stands between buyers and sellers in eligible trades and nets obligations across them. DTCC says this multilateral netting cuts equity payment obligations by an average of 98%.

NSCC has processed trades 24 hours a day, five days a week since June 28. CME's 24/7 schedule covers cryptocurrency futures and options, excluding spot-quoted futures, with at least two hours of weekly maintenance. Under its implementation notice, trades from Friday evening through Sunday evening are booked for the next business day, when clearing and settlement occur.

Nodal set out two approaches for selected Coinbase derivatives in a May 2025 filing:

• Members must keep additional weekend trading below half the customer's excess margin — collateral left after existing requirements are met.
• Alternatively, customers can use all of that excess margin, minus any losses on positions they still hold.

Gains count toward buying power only after margin recalculation post-weekend, and members supporting weekend contracts pay a surcharge into the guaranty fund. The design prevents customers from adding positions with money still in transit.

How big are the payments the weekend must cover?

Chicago Fed researcher David DeCarlo examined CME's quarterly disclosures from the third quarter of 2022 through the third quarter of 2025. The median largest payment any single participant owed over the prior year was $3.73 billion per quarter. Under severe but plausible conditions, the median estimate was $24.31 billion. Both figures cover business well beyond weekend crypto trading, and some payments offset when firms share a settlement bank — but they show why payment size can matter as much as network hours.

The Federal Reserve's approved expansion will add Sundays and weekday holidays to Fedwire Funds and the National Settlement Service no earlier than 2028, running Sunday through Friday with daily hours of 22 and 21.5 respectively. FedNow already operates through weekends, but its transaction limit rose to $10 million in November 2025 — well below what some clearing companies need to move.

Where do stablecoins and tokenized securities fit?

Stablecoins already in circulation move between wallets outside banking hours. Redemption is the bottleneck. Circle said in its October explanation of its redemption service that qualified platform customers and users of its payments network can redeem around the clock and receive money in near real time, versus up to two business days on standard routes. Circle keeps cash at partner banks to do this — cash that earns less than Treasuries would, a cost Circle absorbs to offer speed.

Tokenized securities move at any hour between registered wallets on the same blockchain once converted, but DTCC's launch plan keeps conversion on business-day hours, with digital cash and on-chain netting on an indicative later roadmap.

On Nov. 11, OKXICE — a joint venture between OKX and the owner of the New York Stock Exchange — announced a Nov. 23 launch for round-the-clock trading in more than 70 expected tokenized securities, including 59 Direxion ETFs. Eligible US customers would trade through permissioned liquidity pools on X Layer under a temporary SEC exemption. The announcement left open when related banking and redemption services would be available.

The CFTC's May 29 advisory on continuous trading sets expectations for staffing across operations and risk, disruption response, vendor accessibility and parallel-system upgrades. If a payment fails at 3 a.m. on Saturday, someone must have both the cash to cover what comes due next and the authority to release it before the usual payment systems reopen.