GSM compared with RUM: revenue, margins and what each company keeps, and the suppliers and customers both name

GSMFerroglobe PLC

Mkt capRevenueRevenue

RUMRUM Group Inc.

Mkt capRevenueRevenue

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GSMFerroglobe PLC

RUMRUM Group Inc.

Price

Mkt cap

Revenue

Revenue flow Supply chain Price Co-movers Event sensitivity Earnings history

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Supply-chain overlap

News Findings Companies A–Z Pricing Methodology Sources Corrections About Terms

Not investment advice. Not a broker-dealer. Indices shown as ETF proxies. Supply-chain data CC BY 4.0; market data not redistributable.

Listed on One’s Vibe · live-checked · Oct ’26

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Supply-chain overlap

direct ties · both sidesSources ›

direct ties · both sides

Only GSM 2

—EDFunlistedsupplier

—Tennessee Valley Authorityunlistedsupplier

Shared 0

No shared counterparties.

Only RUM 2

—Cosmicunlistedsupplier

—Kosmik Developmentunlistedsupplier

Role chip = supplier or customer—= no ticker (unlisted)Source: SEC EDGAR

GSMFerroglobe PLC

3.86▼−3.74%· post 3.86

Mkt cap$284.7MRevenue$175MQ1 FY16Revenue$801MFY15

RUMRUM Group Inc.

5.34▼−4.56%· post 5.35

ClosedOct 30 '26

Mkt cap$1.5BRevenue$40MQ2 FY26Revenue$101MFY25

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ClosedOct 30 '26

GSMFerroglobe PLC

RUMRUM Group Inc.

3.86▼−3.74%post 3.86

Price

5.34▼−4.56%post 5.35

$284.7M

Mkt cap

$1.5B

Q1 FY16$175M

Revenue

$40MQ2 FY26

FY15$801M

Revenue

$101MFY25

GSM3.86▼−3.74%vsRUM5.34▼−4.56%ClosedOct 30 '26