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Trade Alert: Claude Still Needs A Lab

Citrini’s drug-design experiment put Twist Bioscience to work.

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Portfolio Armor
Oct 21, 2026
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Illustration of scientists working in a biotechnology laboratory, with a protein model on a computer and large windows behind them.

The Bill Came From A Lab

The latest AI-biotech demonstration came with a laboratory bill. That’s the part of the story we like as investors.

On October 20th, investment-research firm Citrini Research published its three-month experiment with an internal Anthropic model: could a group of nonexperts use Claude to help design a potential scorpion antivenom? Twist Bioscience (TWST), a provider of synthetic DNA and protein services, helped turn the computer’s designs into material scientists could test.

Citrini’s Eva Roytburg introduces the experiment in this video:

X avatar for @eva_roytburg
Eva Roytburg@eva_roytburg
Breaking news—I’ve joined @citrini as its short form video monkey!! Watch our first one on this morning’s nuts paper
X avatar for @citrini
Citrini @citrini
What is AI really capable of in bio? To separate hype from reality, we spent 3 months working firsthand with @AnthropicAI's internal research model to see if it could create an experimental scorpion antivenom. Introducing Citrini Therapeutics. https://t.co/VAUBSi7sNy
3:47 PM · Oct 20, 2026 · 131K Views

58 Replies · 33 Reposts · 1.01K Likes

Promising Designs Need Physical Proof

Anthropic’s research report describes 17 qualifying binders among 211 designs tested. A binder is a protein that attaches to a target. The researchers hadn’t tested whether these designs actually neutralize a toxin in cells or protect a living animal. That distinction separates a promising design result from a treatment.

Nathan C. Frey, Anthropic’s head of drug-discovery and development research, lays out both the achievement and the work still ahead:

X avatar for @nc_frey
Nathan C. Frey@nc_frey
Where do you go next after reporting from the Strait of Hormuz? For the past three months, Citrini Research, an independent research firm, has been working with our team and an internal research model to see if they could use AI to create a new drug. What follows is an…
X avatar for @citrini
Citrini @citrini
What is AI really capable of in bio? To separate hype from reality, we spent 3 months working firsthand with @AnthropicAI's internal research model to see if it could create an experimental scorpion antivenom. Introducing Citrini Therapeutics. https://t.co/VAUBSi7sNy
5:07 PM · Oct 20, 2026 · 815K Views

76 Replies · 161 Reposts · 3.54K Likes

The lab work was substantial. Citrini reports a combined bill of just under $150,000 paid to Twist and Adaptyv Bio for synthesis, protein production and testing.

More Ideas Can Mean More Lab Work

The investment question is who earns revenue as researchers generate and test more ideas. Twist already performed physical work in this experiment. Our thesis is that cheaper molecular design can expand demand for the synthesis and testing needed to find out which designs work.

Novartis CEO Vas Narasimhan made the underlying distinction in his October 20th essay: AI can reduce information and operational delays, while experiments and clinical development still impose biological constraints. Generating more candidates also raises the value of choosing and testing them well.

Investor Kevin Mak read the same evidence as a reason the market’s biotech-disruption trade could reverse. We’re focused on the supplier side: AI’s progress can create customers for laboratory services while drug developers continue the difficult work of proving safety and efficacy.

For Twist shareholders, the evidence to watch is commercial: AI-related order growth, repeat customers and the margins those orders produce.

Two Profitable Trades In Twist

We’ve already traded Twist Bioscience profitably. Our two most recent entries were on February 27th and July 15th, and both have since closed. Here’s the original February 27th entry:

Historical Twist Bioscience entry, February 27, 2026: four-leg hybrid combo offered at a maximum $2.45 net debit, with $745 maximum loss.

Our actual fill was $2.25, putting the original maximum risk at $725. After the staged exits, the trade finished on July 6th with a 104.1% return on that risk:

Twist Bioscience hybrid combo entered February 27, 2026 at $2.25 net debit; put spread exited June 4 at $0.20 net debit, call diagonal July 6 at $10 net credit. Return104.1% on original maximum risk;336% on premium paid, before fees.

We returned to the name with this July 15th entry:

Historical Twist Bioscience entry, July 15, 2026: four-leg hybrid combo offered at a maximum $4.50 net debit, with $950 maximum loss.

The trade filled at $4.50 and finished on October 6th with a 132.1% return on its original $950 maximum risk:

Twist Bioscience hybrid combo entered July 15, 2026 at $4.50 net debit; call diagonal exited September 23 at $17.25 net credit, put spread October 6 at $0.20 net debit. Return132.1% on original maximum risk;279% on premium paid, before fees.

Our Next Trade

Twist Bioscience ranked fourth among Portfolio Armor’s Top Names at the October 20th close. We’re returning to the name today with a different options structure.

The thesis is that more AI-designed molecules will generate paid orders for physical synthesis and testing. Below, we lay out the trade and our exit plan.

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Our Next AI-Biology Trade

Keep up with our AI-related research and trades. Paid subscribers get our actionable trade alerts before we enter our trades.

To see how our stock selection and options approach fit together, start here:

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Today’s Top Names Trade

Theme: AI-designed molecules drive synthesis demand.

RSI: 44; Chartmill Technical Rating: 8; Setup Rating: 5; Fundamental Rating: 4.

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