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Citadel Securities

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11:15
2026-06-24
awealthofcommonsense.com
artificial-intelligence

Animal Spirits: Everything is Outperforming the S&P 500 This Year

A wave of stocks has seen triple-digit gains in 2026, with the S&P 500's return on equity boosted by the AI capex boom. Retail investors are pouring into U.S. stocks at a record pace, while consumer s…

11:21
2026-06-13
letsdatascience.com
artificial-intelligence

AI practitioners prioritize model triage to cut costs

AI practitioners are prioritizing model triage to cut costs, as running the same coding task through Claude Fable 5 costs $9 versus $1.50 for GPT-5.5, a 6x gap. Three signals reinforce cost pressure: …

14:02
2026-05-29
a16z.news
ai-chips

Charts of the Week: Retail to the Moon

Retail investors are driving record-breaking stock market activity, with May on pace to be the most active month for retail cash equity volume on record, according to Citadel Securities. Retail option…

00:00
2026-05-03
vivekhaldar.com
artificial-intelligence

A Tale of Two Job Markets

Software engineering job postings have surged since mid-2025, particularly in AI-exposed industries, according to a Citadel Securities report, while a Stanford study shows actual employment among juni…

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