AWS Weekly Roundup: Claude Mythos Preview in Amazon Bedrock, AWS Agent Registry, and more (April 13, 2026)

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That’s why I was so excited to see the launch of Amazon Bedrock new support for cost allocation by IAM user and role this week... Whether you’re scaling agents across teams, tracking foundation model use by department, or running tools like Claude Code on Amazon Bedrock, this new feature is a game changer for tracking and managing your AI investments... Now, let’s get into this week’s AW...

How to build effective reward functions with AWS Lambda for Amazon Nova model customization

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Building effective reward functions can help you customize Amazon Nova models to your specific needs, with AWS Lambda providing the scalable, cost-effective foundation... At the heart of RFT lies the reward function—a scoring mechanism that guides the model toward better responses... This post demonstrates how Lambda enables scalable, cost-effective reward functions for Amazon Nova customizati...

Iran War May Widen 10-Year Yield’s Market Premium vs. Fair Value

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The inflation-driven spike in the market premium for the US 10-year yield in 2022-2023 has been gradually reversing over the last several years...A market premium over fair value has prevailed in recent years... During the height of the 2022-2023 inflation shock, the premium spiked to well over a full percentage point... Investor sentiment has been gradually unwinding that premium, but...

Book Bits: 11 April 2026

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By purchasing books through this site, you provide support for The Capital Spectator’s free content... What is the economy? Why should I care about it? A: I mean, first I have to give my favorite joke is that economists say economics is what economists do, because there is this way that it’s a little bit nebulous, and that’s what we’re referring to... But I think one answer is that the ec...

Momentum Factor Leads as Wall Street Bets on a Fragile Ceasefire

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The iShares MSCI USA Momentum Factor ETF (MTUM) is leading the field by a wide margin for performance since the war began...8% gain since the close on Feb... The biggest loser since the war began is low volatility (USMV), which has declined 3...6% since Feb... Markets will be keenly focused on the macroeconomic stakes, which are tied to control, stability, and predictability in the Strait of...

Microsoft named a Leader in The Forrester Wave™ for Sovereign Cloud Platforms

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Digital sovereignty is no longer a niche requirement... For organizations operating across borders, regulated industries, and complex supply chains, sovereignty is now table stakes for cloud strategy...That’s why we’re pleased that Microsoft has been named a Leader in The Forrester Wave TM: Sovereign Cloud Platforms, Q2 2026 – an evaluation that assessed the most significant sovereign cl...

Rapid game server iteration on Amazon GameLift Servers

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You can use the multi-build solution for Amazon GameLift Servers to do that... It’s a solution that configures an Amazon GameLift Servers containers fleet that automatically synchronizes multiple game server build versions from an Amazon Simple Storage Service (Amazon S3) bucket in real time and runs them inside a pre-created game server container... Overview The solution comes with a deploym...