Companies: 10,795·Total market cap: $144.5T
Rio Tinto Group

Rio Tinto Group

RIONYSEBasic Materials● Active
$100.93
+$0.24(+0.24%)
Market Cap$163.9B
P/E Ratio
52W High$112.58
52W Low$55.64

Rio Tinto Group (RIO) Stock Splits

Forward and reverse split history, cumulative multiple, latest ratio, and share calculator on this tab.

FMP · RIO · as of Jun 8, 2026

Key split metrics

Total Splits1Since IPO (Jun 28, 1990)
Most Recent SplitApr 30, 2010Forward · 4-for-1
Cumulative Multiple×41 share (1990) → 4 shares today

Latest Split Event

Forward Split
Apr 30, 2010
BEFORE SPLIT$215.88Closing price · Apr 29, 2010
4-for-1
AFTER SPLIT$52.37Opening price · Apr 30, 2010
Each shareholder received 4 shares for every 1 share held.·Total market cap unchanged.·Source: FMP · Historical EOD

Stock Split History

RIO · 1 records
DateRatioTypeMultipleCumulative
Apr 30, 20104-for-1Forward×4×4
1 splits since IPO · Jun 28, 1990Data: Financial Modeling Prep · Updated daily

Stock Split Calculator

If you bought 100 shares purchased of RIO on Jan 1, 2020 — how many shares would you hold today after all splits?

ORIGINAL SHARES100
SHARES TODAY100
Splits Applied0
Total Multiplier×1.00
Split Period
Splits applied:No splits occurred after this date
Based on purchase date Jan 1, 2020Share count only · excludes price / dividendsSource: FMP

This calculator shows how stock splits affected share count only. It does not reflect current market value, dividend payments, or transaction costs. Past splits do not guarantee future performance.

About stock split history & investor guide

Rio Tinto Group (RIO) has split its stock 1 times since its IPO, with a cumulative multiplier of ×4. The most recent split was a 4-for-1 forward split on Apr 30, 2010.

Frequently asked questions

Rio Tinto Group (RIO) has split its stock 1 times. All splits were forward splits. The cumulative multiplier is ×4, meaning 1 share at IPO would equal 4 shares today.

RIO stock split historyhow many times has RIO splitRIO cumulative stock splitforward stock split record
Data: Financial Modeling Prep · Updated daily · For informational purposes only, not investment advice.