RIO

-3.1%⚪ No clear catalyst

Rio Tinto plc · Basic Materials

$88.40Vol 17.5K · 1.0× normalMkt cap −$4.64Bpre · 2026-10-15 ET

What happened

Move

-3.1%

Price

$88.40

Volume

17.5K

1.0× normal

Market cap

$143.77B

−$4.64B today

Why it moved

No clear catalyst identified

No reliable news, earnings or analyst driver was found for this move. A move this size without an obvious driver is most likely flow/positioning-driven rather than a fundamentals story.

Verdict — was the move justified?

⚪ No clear catalyst

An unusually large move with no reliable catalyst identified — most likely flow/positioning-driven rather than news-driven.

How unusual is this move

σ score

2.4σ

vs own 20d volatility

Percentile

90th

of 1276 daily moves

Avg daily move

±1.4%

own 5y average

vs sector

-3.3%

beyond sector median

Today’s move is among the largest 10% of RIO’s daily moves over the last 5 years — while the sector moved +0.2% and the market +0.0%.

What happened after similar moves

132 similar down moves in RIO’s 5-year history:

After 5 days

-0.0%

49% higher

After 20 days

+1.6%

58% higher

Median of same-direction moves within ±35% magnitude band. Past patterns don’t predict outcomes — context, not signal.

Fundamental context

V 42G 0P 65H 68Q 20

Valuation context

P/E (TTM)

14.9

5y median 8.8

P/E percentile

92%

vs own 5y history

FCF yield

0.0%

Trading richer than 92% of its own historical valuation range.

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