CommonStock is a social investing platform acquired by Yahoo! in 2023. It enables users to share insights, track portfolios, and discuss stock ideas within a community. Founded in 2017 and based in San Francisco, the service integrates with brokerage accounts to provide real‑time performance data. The platform offers a web app and mobile apps for iOS and Android, focusing on collaborative investment research and education.
CommonStock is profiled on the APIs.io network. Tagged areas include Company.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) regime, so
Regulatory Posture carries 15 points of the composite.
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Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
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aid: commonstock
name: CommonStock
description: CommonStock is a social investing platform acquired by Yahoo! in 2023. It enables users to share insights, track
portfolios, and discuss stock ideas within a community. Founded in 2017 and based in San Francisco, the service integrates
with brokerage accounts to provide real‑time performance data. The platform offers a web app and mobile apps for iOS and
Android, focusing on collaborative investment research and education.
url: https://raw.githubusercontent.com/api-evangelist/commonstock/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-09 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-09'
modified: '2026-10-09'
tags:
- Company
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
common:
- type: Hosts
url: hosts/commonstock-hosts.yml
- type: DomainSecurity
url: security/commonstock-domain-security.yml
- type: Website
url: https://share.commonstock.com/
apis: []
x-coverage:
state: unreadable
reason: js-rendered-docs
detail: The share.commonstock.com site serves only HTML shells and requires rendering to access any API information.
evidence:
- url: https://share.commonstock.com/
status: 200
checked: '2026-10-09'
x-enrichment:
date: '2026-10-09'
status: enriched
artifacts_added: 5
pass: modular-v1
engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local
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