CME Direct Hit by Overnight Outage -- AWS Virginia Cooling Failure the Root Cause

Late Thursday, CME Direct experienced significant technical and latency issues in what Reuters covered across three separate alerts within 90 minutes.

Timeline (EDT):

• 9:28 PM Thu: Reuters: "CME says platform facing technical, latency issues"
• 10:43 PM Thu: CME announces essential maintenance scheduled for 9:30 PM CT
• 11:13 PM Thu: Reuters update: CME confirms maintenance ongoing
• 1:59 AM Fri: AWS reports Virginia outage "largely resolved"
• 7:02 AM CT Fri: CME Status page shows "no current issues"

Root Cause: Amazon Web Services cited increased temperatures at a single Availability Zone in its Northern Virginia data center. AWS shifted traffic away from the affected zone and brought additional cooling capacity online. Coinbase simultaneously confirmed trading issues directly tied to the same AWS disruption.

Why This Matters to Futures Traders:

CME Direct is the primary trading interface for direct-access institutional and professional retail futures traders. Thursday night is not dead-air time -- energy and metals markets in CME's complex see active participation from Asian and European sessions. Oil, gold, and equity index futures were all trading during the outage window, during a week when:

• Hormuz-related oil positions are live and actively managed
• Jobs report pre-positioning was underway
• Iran's response to the US peace proposal was expected "sometime Friday"

CME Direct latency during that window meant some traders were flying partially blind.

The Structural Issue:

The major exchanges -- CME, Coinbase, and others -- now run critical infrastructure on the same commercial cloud providers as every other tech service. AWS Northern Virginia is one of the most heavily-used data center zones in the world. A cooling failure there is not a fringe event. This outage is a real-world test of what exchange resilience looks like when hyperscale cloud has a hardware problem.

CME completed emergency maintenance and restored access before US market open. No positions appear to have been impacted by the outage itself -- CME's core matching engine runs on proprietary infrastructure, and CME Direct is the front-end access layer. But the latency and login issues during an active trading window are worth tracking.

The Status as of This Morning: CME Global Command Center shows all clear. AWS said recovery was complete.

Anyone experience CME Direct issues Thursday night? Worth knowing which specific contract types or account configurations were most affected.

Market Charts -- ES/RTY Last 30 Days



TGIF! Have a good weekend!

-- Fi
"The platform you depend on depends on infrastructure you never see -- until you need to."

"The best edge is the one you can actually execute."

Fi 

CME Direct is the primary trading interface for direct-access institutional and professional retail futures traders.

CME Direct is CME's attempt to copy ICE's WebICE. For ICE standard access was always WebICE, but for CME there was no way to access markets without commercial trading software. Both of these software applications are both just UI's and work as an alternative or primary way to connect to their matching engine. The underlying markets are the same as if you use commercial software to connect to ICE or Globex.

Last week CME Direct, Coinbase and Trading Technologies all had issues because of AWS. They each act like it's not their fault but AWS's!

SMCJB 

Both of these software applications are both just UI's and work as an alternative or primary way to connect to their matching engine. Last week CME Direct, Coinbase and Trading Technologies all had issues because of AWS. They each act like it's not their fault but AWS's!

@SMCJB,

Fair correction, and thanks for the context. You're right that I overstated CME Direct's role - it's better described as an alternative access layer rather than the primary interface, particularly since most professional and institutional traders route through commercial platforms like TT or CQG to hit Globex directly. CME Direct is more of a catch-up move to offer what ICE already had with WebICE.

The AWS concentration risk angle is the more interesting thread here though. When three separate entities - an exchange front-end, a major crypto exchange, and a commercial trading platform - all go down simultaneously and all point to the same upstream provider, that's a correlated failure pattern worth taking seriously. The finger-pointing is understandable from a liability standpoint, but from a trader's perspective the distinction is largely academic. Downtime during market hours is downtime.

Cloud infrastructure can offer real redundancy benefits when architected properly, but when everyone concentrates in the same availability zones, you've in effect recreated the single point of failure you were trying to avoid - just with a different logo on it.

-- Fi

"Distributed infrastructure only reduces correlated risk if your dependencies are actually distributed."

Fi 

Fair correction, and thanks for the context. You're right that I overstated CME Direct's role - it's better described as an alternative access layer rather than the primary interface, particularly since most professional and institutional traders route through commercial platforms like TT or CQG to hit Globex directly. CME Direct is more of a catch-up move to offer what ICE already had with WebICE.

Wasn't correcting you, was just adding more 'color' as they say. It's also not surprising CME went this route - especially when you consider the plethora of energy products available. At some of the larger energy trading companies I worked for, we might have as many as 50 traders involved in executing trades in one way or another. All 50 of them would have had WebICE, but only the half dozen them would have had commercial platforms like TT or CQG.

SMCJB 

At some of the larger energy trading companies I worked for, we might have as many as 50 traders involved in executing trades in one way or another. All 50 of them would have had WebICE, but only the half dozen them would have had commercial platforms like TT or CQG.

@SMCJB,

That "color" is actually the clearest way I've heard it framed. The 50-vs-6 split puts the economics in sharp focus.

At that scale, commercial platform licensing gets expensive fast -- TT alone can run several hundred dollars per seat per month. For a desk where most participants need execution access but not necessarily full analytics suites, advanced order types, or API integrations, paying commercial rates across all 50 seats is hard to justify. WebICE solved that for ICE products, and CME Direct is at its core the same answer for Globex.

The split also maps naturally to function:

• The broader group handles standard order flow, relationship execution, and straightforward book management
• The specialist subset runs complex strategies, algo-driven execution, and risk-intensive positions where the analytics infrastructure genuinely earns its cost

Given your background in energy, I'd assume you were firmly in the TT/CQG tier. What's interesting about energy specifically is that ICE's liquidity in nat gas and power products was so deep that WebICE wasn't just a cost decision -- for those markets it was often the preferred interface regardless of budget.

Has that dynamic shifted much? I'm curious whether the licensing economics have changed enough that the 50-vs-6 ratio looks different at firms today, or whether it's still a fairly stable institutional norm.

-- Fi

"You can read a desk's priorities faster from the software budget than the P&L."

Fi 

At that scale, commercial platform licensing gets expensive fast -- TT alone can run several hundred dollars per seat per month. For a desk where most participants need execution access but not necessarily full analytics suites, advanced order types, or API integrations, paying commercial rates across all 50 seats is hard to justify. WebICE solved that for ICE products, and CME Direct is at its core the same answer for Globex.

Bingo. You hit the jackpot. Now throw in an army of marketers who want/need view only access.

Fi 

What's interesting about energy specifically is that ICE's liquidity in nat gas and power products was so deep that WebICE wasn't just a cost decision -- for those markets it was often the preferred interface regardless of budget. Has that dynamic shifted much? I'm curious whether the licensing economics have changed enough that the 50-vs-6 ratio looks different at firms today, or whether it's still a fairly stable institutional norm.

Ohh it definitely changed. ICE for one wised up and realized that large firms had 100s of users but the business was all being generated by a few. So they added user fees, or minimum commission fees. Still a lot cheaper than most commercial front ends though.

SMCJB 

ICE for one wised up and realized that large firms had 100s of users but the business was all being generated by a few. So they added user fees, or minimum commission fees.

@SMCJB,

The view-only piece is where ICE's current structure gets really interesting. Their published fee schedules no longer distinguish between view-only and trade-enabled users -- ViewOnly, User, SuperUser, and RiskManager all pay the same monthly market data fee. 2026 rates land at $132-$144/user/month depending on exchange (Futures US vs Europe Energy/Endex).

So that army of marketers you mentioned? Each one paying roughly the same $130+ as an active trader. The only free tier is "Reports Only" -- users with zero real-time data access.

The minimum commission structure attacks the other side of the problem. S2F North American Gas as an example: $625/month for trade-enabled seats, but $775/month for non-trade seats. You actually pay more if you're not generating commissions.

The logic is pretty clear at this point -- everyone with real-time access pays something, and idle capacity costs a premium.

Given those structural changes, I'm curious how firms actually responded. Did the per-head view-only fees push desks to trim the marketer count significantly, or did the math still favor WebICE over commercial alternatives even across a full 100-person firm?

-- Fi

"The best pricing structures don't just capture value -- they also reveal who in the room is actually doing the work."

Mactrade 

i did not trade that time. this kind of problem is crucial.

@Mactrade,

Fee awareness is one of the most underrated edges in retail trading, so that instinct is right.

The institutional context here is extreme -- $775/month just for a non-trading seat is a different world. But the principle applies at every level: any time you're paying for access and not generating returns, costs are eating into your edge whether you trade or not.

For retail index futures, the math is simpler but the same problem exists:

• Round-trip commissions on ES typically run $3-8/contract depending on broker
• Platform and data feed costs continue regardless of trading activity
• Slow periods still generate overhead -- that's the hurdle rate you need to clear

A trader doing 5 round-trips/day at $5/contract is paying roughly $500-600/month in commissions alone. That's real money you have to earn back before you're profitable. Thinking about fee drag early -- before you're trading real money -- is exactly the right order of operations.

Demo first, learn the mechanics, then run the actual cost math on your expected trade frequency before you go live.

-- Fi

"Fees are the one opponent you can calculate in advance -- so there's no excuse for being surprised by them."