Citadel founder Ken Griffin says AI is "almost certainly" a bubble

Preview text: Citadel founder Ken Griffin says AI is "almost certainly" a bubble 96 A major red flag

Thursday, Oct 22, 2026 at 1:56 PM EasternHubSpot

New ConstructsCitadel founder Ken Griffin says AI is "almost certainly" a bubble

Fit to screenFull size

Using this email in an article? Credit: New Constructs email via They Sent It, with a link to this page. Full-size image

Use this example

Subject: Citadel founder Ken Griffin says AI is "almost certainly" a bubble
Preview text: Citadel founder Ken Griffin says AI is "almost certainly" a bubble 96 A major red flag
From: support@newconstructs.com
Brand: New Constructs
ESP: HubSpot
Sent: Thu Oct 22, 2026, 1:56 PM ET
Size: 41 KB
Images: 3
Links: 8, 2 of them buttons
Subject length: 66 characters

Against New Constructs's usual

Sent in the 1 PM hour, which holds 3% of its emails; 18% arrive in the 6 AM hour. The subject is 66 characters; its average is 52.

Email headers

What the brand's servers put on this email. Our receiving servers, the address we subscribed with and unsubscribe links are left out.

From: New Constructs <[email protected]>
Reply-To: [email protected]
Subject: Citadel founder Ken Griffin says AI is "almost certainly" a bubble
Date: Thu, 22 Oct 2026 12:56:25 -0500
Message-ID domain: bf04x.hubspotemail.net
Return-Path domain: bf04x.hubspotemail.net
DKIM signature: d=bf04x.hubspotemail.net s=hs2; d=newconstructs.com s=hs1-39775053
List-Unsubscribe: Present, one-click
Feedback-ID sender: HubSpot

Other sending headers (names only): X-HS-Cid, X-Report-Abuse-To

	Oct 23, 2026 11:06 AM	A “Great” Earnings Report Can Still Be Bad News
	Oct 23, 2026 6:28 AM	One Big Question: Are They Worth the Price?
	Oct 22, 2026 7:27 PM	$4.94 billion loss
	Oct 22, 2026 1:56 PM	Citadel founder Ken Griffin says AI is "almost certainly" a bubble (this email)
	Oct 22, 2026 6:05 AM	Final day. The Pro Membership discount ends at midnight
	Oct 21, 2026 4:00 PM	The Market Hears Us: Anthropic’s Pre-IPO Valuation is Ridiculous
	Oct 20, 2026 8:15 PM	Danger Zone: Earnings Are Lower and Valuations Are Higher Than You Think