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a16z.news
Free
Newsletter
Entrepreneurship

State of Markets II

a16z's second annual State of Markets report by David George, released September 30, 2026, with 100+ charts covering equity markets and tech for the first half of 2026. The post highlights tech's rise as the dominant force in capital markets — contributing roughly 76% of S&P 500 earnings growth in 2026 — and the rotation from software to hardware, as the AI buildout drives demand for semiconductors, power, and networking, funded by hyperscaler profits and increasingly by debt. Free to read on a16z's Substack.

#venture capital#markets#AI investment#tech earnings#semiconductors#data charts#charts#2026#a16z
a16z.newsAdded Oct 4, 20261 opens
d3js.org
Free
Website
Technology & Ethics

D3.js by Observable

The JavaScript library for bespoke data visualization. Build custom, interactive charts and data stories directly in the browser.

From the site: The JavaScript library for bespoke data visualization

Why I recommend it: Open-source library maintained by Observable; free to use under the ISC license.

#data-visualization#javascript#charts#open-source#web-development
d3js.orgAdded Sep 19, 20260 opens
matplotlib.org
Free
Tool
AI & Assistive Tools

Matplotlib

The open-source Python library for static, animated and interactive charts, with free plot-type galleries, tutorials, cheat sheets and a full API reference.

Why I recommend it: If you are learning data work, start here: the example gallery lets you copy a chart that already looks like what you need and adapt it.

#matplotlib#python#data-visualization#data-science#charts#open-source#free-training#documentation#analytics#tech-careers
matplotlib.orgAdded Sep 16, 20260 opens