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The 🦴🦴🦴🦴🦴🦴🦴 Market
Shiny Thing$ 238, by Rally

Shiny Thing$ #238: 🦴🦴🦴🦴🦴🦴🦴
Rob Petrozzo, for Rally
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There’s another dinosaur coming to market - one with a VERY real chance at rewriting the record books.
In July, Sotheby’s will auction a Tyrannosaurus rex nicknamed “Gus” with an enormous pre-sale estimate of $20M–$30M - the highest estimate ever issued on a dinosaur fossil. The specimen is among the most complete T. rex skeletons ever discovered, stretching nearly 38 feet long and standing over 12 feet tall. It includes 183 fossil bone elements, a remarkably preserved skull (incredibly rare in a dino of this size), evidence of healed fractures from battle, and visible bite marks from what looks to have been a very bad day 67 million years ago.

Gus, the Tyrannosaurus rex. (📸: by Matthew Sherman / Sotheby’s)
That estimate, which would have been laughable 5 years ago, matters for a few reasons…
Not because auction estimates are always right (as a very smart man in the auction world once told me, “the estimate on great pieces is the floor, not the ceiling”) but because estimates are signals on their own. They tell you where the market believes the “minimum desire” now exists. And in the case of dinosaurs, the floor keeps moving up.
Just two years ago, Sotheby’s sold Apex, the Stegosaurus, for $44.6M after an estimate of only $4M to $6M. Before that, Stan the T. rex sold for $31.8M on an estimate of $8M. Last year, even a juvenile Ceratosaurus exploded past expectations at $30.5M.
The important thing here isn’t just that dinosaurs are expensive now. It’s that the conversational liquidity (my mom texts me a new dinosaur article on basically a weekly basis at this point) is now matched by the actual liquidity - from low end fossils to the highest end ofg the market.
Every day people understand them without any additional context necessary, while the richest individuals and institutions understand that their amongst the rarest assets on the planet.
You don’t need to explain why dinosaurs matter to either group. You don’t need to teach anyone about provenance, regional markets, artist significance, or historical nuance. Dinosaurs bypass all of that. They are instantly relatable apex objects - rare, unintentionally theatrical, emotional and charged with nostalgia from childhood, and completely impossible to ignore. They occupy the same psychological territory as the Hope Diamond, Michael Jordan highlights, and $100M+ Ferrari GTOs. You see one and immediately understand that it is not replaceable.
That matters enormously in modern collecting markets, because value today is increasingly downstream from attention. The objects that win are the ones people talk about. Its really that simple sometimes. The ones that become identity markers for the people wealthy enough to own them.
And there may be no category in collectibles right now with more momentum than natural history. Over the last year alone, dinosaurs have pretty quickly moved from niche scientific artifacts into full-fledged trophies. Hedge fund managers, tech founders, museums, sovereign wealth buyers, luxury auction houses - everyone suddenly wants exposure to the “category” (a crazy statement compared to 6 years ago when we were talking dinosaurs as investments, and the concept of a dino-category was met with “why not stick to cars?” from one of our investors). The market has gone from “interesting” to globally competitive almost overnight.
Which is why we’ll be watching the Gus sale very closely as we prepare to bring our own Stegosaurus to market.
”Steg” on Rally already represents one of the most important assets ever offered on the platform, with more than 1,000 individual investors collectively owning what may ultimately become one of the most valuable Stegosaurus specimens in existence. As the broader dinosaur market continues to establish new benchmarks, we expect meaningful conversations around potential exits very soon - whether through private sale, institutional placement, or public auction.
And this all ties into something much larger happening across collectibles as a whole. The best 1-of-1 assets are disappearing. The great cars. The historic game-worn jerseys. The iconic watches. The singular objects with real narrative gravity. The museum-grade everything... it’s all going.
They’re getting absorbed into permanent collections, sovereign entities, foundations, museums, and billionaire estates. And many of them may never meaningfully return to the market again.
That’s what happens when a market matures.
The world eventually realizes there were fewer truly important objects than anyone thought. Last chance.
Dinosaurs included.
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Until next week…