MIAX

InvestigatorHefty799

72 contracts of the IWM $265 put (0DTE) printed at $0.03 at 9:32:31 AM ET at MIAX I also solved the puzzle for OP, the quotes were stale from Friday close, no it was likely Schwab data not updating from previous close. Nothing special about these options either, no sure why OP was trying to hide it.

2fingers

Yes, I am sure of that. Here's examples of what that field streams along with the corresponding MM: * CES\_OPT\_F1\_J1 = Citadel Securities * DASH\_OPT\_F1\_J2 = DASH Financial Technologies * SIG\_OPT\_F1\_J1 = Susquehanna Securities * WOLF\_OPT\_F1\_J2 = Wolverine Trading * JANESTREET\_OPT\_F1\_J1 = Jane Street Capital The "F1\_J1" part will vary a bit. Complex orders I think should get route names for all legs but they'll always be the same. If the order fills, there's also the fill message (OrderFillCompleted) that carries "ExecutionInfo.Exchange", the exchange where the fill printed (CBOE, MIAX…), and also its own ExecutionInfo.RouteName. The fill tells you where it executed. For the market maker it was sent to, ExecutionRequested is the reliable source though, because it arrives even when the order never fills.

creemeeseason

MIAX Exchange Group reached a record year-to-date (YTD) average daily volume (ADV) of 11.0 million contracts through August 2026, a 25.5% increase from the same period in 2025 MIAX Exchange Group set a YTD market share record of 17.1% through August 2026, compared to 16.5% in the prior-year period. Giddy up. Continues to take share in a growing market.

TheWeebles

I used to work for a primes brokerage at an investment bank. they've been trying to get me back for about half a year now. I told them only if I can work from the Tokyo office and support US Equities/Derivatives. If this is successful it won't stop. Would go NYSE/CBOE then MEMX/MIAX in US and might get adopted worldwide. I would imagine weekend trading as well. That would take years however, but that is my guess

creemeeseason

Literally sold out of HWKN this morning to buy MRX...both unconnected to data centers. MRX does commodity trade clearing, basically they benefit for higher volatility in commodities... CHCI is a real estate company I own (with the founder of NVR on the board). Added to my position this morning. MIAX is another I own, they are an options market exchange, basically a toll booth on options trading. Still fairly cheap. ULH is a logistics company that's still cheap, though I do think half of the trucking story right now is data center construction. So not totally unconnected. KWY is running a great business and is fairly ignored in the market.....bio tech/diagnostics are huge beneficiaries of AI, but not related to data centers, but it's not as cheap as a few months ago. So yeah, plenty of great names not connected to data centers. I could go on.

creemeeseason

MIAX earnings: Net revenue, defined as revenues less cost of revenues, grew 35%, or $36.5 million, to a record $141.1 million, compared to $104.7 million in the prior-year period. The increase was primarily driven by strong options business performance, including increased industry volumes and higher non-transaction revenue. Total operating expenses were $113.3 million, compared to $77.4 million in the prior-year period. The increase was primarily due to a litigation settlement charge as well as planned investments in headcount and technology to support growth initiatives, and increased marketing spend. These were partially offset by lower regulatory costs, lower share-based compensation, and 2025 acquisition-related costs. Operating income was $27.8 million, compared to $27.3 million in the prior-year period. Realized an income tax benefit of $15.4 million, primarily driven by a discrete tax benefit of $22.4 million related to share-based compensation. GAAP net income was $44.2 million, compared to $23.5 million in the prior-year period. Adjusted earnings increased 41% to $53.3 million, compared to $37.8 million in the prior-year period. Adjusted EBITDA increased 57% to $76.8 million, compared to $49.1 million in the prior-year period, driven primarily by strong growth in net revenues. Adjusted EBITDA margin expanded to 54% from 47% in the prior-year period. Second Quarter 2026 Business Updates MIAX options exchanges reached average daily volume of 11.0 million contracts in the second quarter of 2026, a 25.3% year-over-year (YoY) increase. MIAX options exchanges achieved market share of 16.5% in the second quarter of 2026, compared to 16.7% in the prior year period. Successfully launched Tini™ B100 Index Futures, Tini B500 Index Futures and B500 Index Futures during the quarter.

Puzzleheaded-One-607

**Miami International Holdings (NYSE: MIAX)**reported record Q2 2026 net revenue of **$141.1 million**, up **35% year over year**, and GAAP diluted EPS of **$0.40**. Net income attributable to stockholders rose to **$44.2 million** from $23.5 million, while adjusted earnings reached **$53.3 million**. **Adjusted EBITDA** increased **57%** to **$76.8 million**, with adjusted EBITDA margin expanding to **54%** from 47%. Options net revenue grew **34%** to $124.4 million, supported by a 25.3% rise in average daily options volume to 11.0 million contracts. International net revenue rose **151%** to $5.7 million, largely from the TISE acquisition. Total operating expenses increased to **$113.3 million**, reflecting a **$30 million** litigation settlement and higher investments in staff, technology, and marketing. MIAX ended June 30, 2026 with **$660.5 million** in cash and cash equivalents and **$1.5 million** in total debt, and lowered its 2026 adjusted operating expense guidance to **$260–$270 million** while keeping capital expenditure guidance unchanged.