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Compare · RIO vs SGML

RIO vs SGML

Side-by-side comparison of Rio Tinto Plc (RIO) and Sigma Lithium Corporation (SGML): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both RIO and SGML operate in Metal Mining (Basic Materials), so they compete in similar markets.
  • RIO is the larger of the two at $126.77B, about 85.9x SGML ($1.48B).
  • Over the past year, RIO is up 70.3% and SGML is up 137.1% - SGML leads by 66.8 points.
  • Both names hit the wire about 2 times in the past 4 weeks.
  • RIO has more recent analyst coverage (25 ratings vs 13 for SGML).
PerformanceRIO+70.28%SGML+137.10%
2025-06-09+0.00%2026-06-08
MetricRIOSGML
Company
Rio Tinto Plc
Sigma Lithium Corporation
Price
$100.94+0.26%
$13.23-0.23%
Market cap
$126.77B
$1.48B
1M return
-2.10%
-44.11%
1Y return
+70.28%
+137.10%
Sector
Basic Materials
Basic Materials
Industry
Metal Mining
Metal Mining
Exchange
NYSE
NASDAQ
IPO
2002
News (4w)
2
2
Recent ratings
25
13
RIO

Rio Tinto Plc

Rio Tinto Group engages in exploring, mining, and processing mineral resources worldwide. The company offers aluminum, copper, diamonds, gold, borates, titanium dioxide, salt, iron ore, and uranium. It also owns and operates open pit and underground mines, mills, refineries, smelters, power stations, and research and service facilities. The company was founded in 1873 and is headquartered in London, the United Kingdom.

Latest RIO

Latest SGML