A friend forwarded us an email last night: an invitation to buy into Zipline at $20B.1 In January it was $7.6B.2
The private pack keeps climbing. Shield AI set $12.7B in March.3 Quantum-Systems, about $8B in July.4 Neros, $2.5B in August.5 Anduril's employee tender is priced at about $90B, and it's in talks to raise at north of $100B.6 Defense tech startups raised more in the first five months of 2026 than in all of record-setting 2025.7
The public side tells a different story. The drone ETFs sit 42% (DRNZ) and 49% (JEDI) below their highs.8 Even ARK's broader space and defense fund is 18% below its high. Red Cat sits 72% below its high. AeroVironment, 70%. Kratos, 68%. Ondas, 52%.
That's the divergence. Private marks climb a staircase. Public prices ride a roller coaster.
Should we be concerned? Not yet. The one lower round we found is Nuro's, and it reset a price set in November 2021, the month the Nasdaq Composite peaked. The Composite itself took until Feb 29, 2024 to set another record.9 That's gravity, not a crack.
History says gaps like this close. In seven episodes since 1845, the higher-priced side came down every time, 13 to 60 months later.10 Something always forced it.
And the window is wide open. SpaceX went public in June, the biggest IPO of all time, and it's building a base.1116 Anthropic filed its S-1 publicly on Monday.12 Anduril's employee tender closes Nov 9.6
We noticed a divergence. We're studying it. Here's what we found, and what we're watching.
Zipline's last closed round was $7.6B, in January. The $20B round is being raised now.1 Meanwhile, the registered fleet keeps growing: 3,079 aircraft on Oct 27.13
The whole pack tells the same story. Each line is one company's marks. Quantum-Systems and Neros have one mark each. Zipline's $20B is the round in progress. Anduril's $90B is its tender price.14
History says the higher-priced side moves when it must transact. Today, nothing is forcing the strongest private names to sell. They're raising, and their registered fleets are growing.17
Which side follows? Private follows public. In the dot-com bust, public stocks fell first and venture marks followed months later. Square and Instacart listed below their last private values. In seven episodes, the lower-priced side never rose to meet the higher.10 The force was always a transaction.
Three paths. Nobody knows which. Here's how you'll know.
There are a lot of forces at play. Nobody can call this. Every path leaves tracks, and the tracks show up before the price does.
1. Follow the money: the private side cools.
Private marks run on money coming in. Defense tech raised $14.6B in five months.7 If the flood slows, the marks follow. Big IPOs pull dollars too. SpaceX raised about $75B in June, and Anthropic is lining up next. Money that buys a listing isn't funding the next Series B.18 When invitations to buy in stop landing in inboxes, that's one signal.
Watch: rounds taking longer to close. Smaller Form D filings. Flat rounds below the leaders.
2. Respect the price: the public side catches up.
The drone funds have pulled back. The trend is the truth until it turns. A catalyst could turn it: the Part 108 rule, a big contract, another strong IPO. Public buyers put about $75B into SpaceX in June, the largest IPO on record.19
Watch: DRNZ and JEDI getting back above their August closes. Both sit about 20% below them today.15 Awards flowing to listed names.
3. Find the edge: the leaders decouple.
Maybe the private names are simply better companies, and the next 10 to 20 years prove it. The proof shows up in what they build, not what they're worth.
Watch: fleets, hiring and contracts. Zipline's registered fleet grew 4.2x in a year.13
The divergence is the thing to watch. The signals arrive first. That's what we track, every day.
Have questions? How can I help? Message me.
Research, not a recommendation or a prediction of returns. Drawdowns are our own readings.
Marble Institute of Technology.