Rio Tinto (RIO) Latest Stock Analysis Report – Oct 15, 2026, 4:00 PM ET

Updated Oct 15, 2026, 4:00 PM ET

What changed since yesterday

Closed at $90.21, -1.14% vs the prior close of $91.25.
Volume 3.32M shares, 1.7x its 50-day average.
New SEC filings: 6-K (Oct 14, 2026).
No new insider buys or sales reported since the prior session.

RIO dips 1.1% to $90.21, a 1-month low, 4 down days in a row. Closed at $90.21, -1.14% vs the prior close of $91.25. Day range $88.67–$90.64, opened at $88.81.

Last close$90.21-1.14%

Day range88.67–90.64

Open88.81

Volume3.32M

52-week range67.39–112.58

Avg volume (20d)1.92M

RIO daily analysis — what happened

A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.

Oct 15, 2026 — RIO dips 1.1% to $90.21, a 1-month low, 4 down days in a row

Closed at $90.21, -1.14% vs the prior close of $91.25. Day range $88.67–$90.64, opened at $88.81.
Volume was 3.32M shares, 1.7x its 50-day average of 1.99M.
Price is -8.4% vs its 50-day average ($98.43) and -6.3% vs its 200-day average ($96.25).
52-week range $67.39–$112.58; today's close sits at 50% of that range, 19.9% below the 52-week high.
That makes 4 straight losses.

Oct 14, 2026 — RIO dips 1.9% to $91.25, a 1-month low, 3 down days in a row

Closed at $91.25, -1.94% vs the prior close of $93.06. Day range $90.67–$92.33, opened at $91.92.
Volume was 2.12M shares, 1.1x its 50-day average of 2.00M.
Price is -7.5% vs its 50-day average ($98.66) and -5.1% vs its 200-day average ($96.20).
52-week range $66.49–$112.58; today's close sits at 54% of that range, 18.9% below the 52-week high.
That makes 3 straight losses.
SEC filings that day: 6-K.

Oct 13, 2026 — RIO dips 1.3% to $93.06

Closed at $93.06, -1.31% vs the prior close of $94.30. Day range $92.79–$94.63, opened at $94.63.
Volume was 1.44M shares, 0.7x its 50-day average of 2.00M.
Price is -5.8% vs its 50-day average ($98.81) and -3.2% vs its 200-day average ($96.16).
52-week range $66.49–$112.58; today's close sits at 58% of that range, 17.3% below the 52-week high.

Oct 12, 2026 — RIO dips 0.5% to $94.30

Closed at $94.30, -0.51% vs the prior close of $94.78. Day range $94.14–$94.74, opened at $94.35.
Volume was 1.21M shares, 0.6x its 50-day average of 2.03M — lighter than usual.
Price is -4.6% vs its 50-day average ($98.87) and -1.9% vs its 200-day average ($96.10).
52-week range $65.35–$112.58; today's close sits at 61% of that range, 16.2% below the 52-week high.

Oct 9, 2026 — RIO rises 1.5% to $94.78

Closed at $94.78, +1.54% vs the prior close of $93.34. Day range $93.63–$94.78, opened at $94.25.
Volume was 1.36M shares, 0.7x its 50-day average of 2.07M.
Price is -4.2% vs its 50-day average ($98.92) and -1.3% vs its 200-day average ($96.03).
52-week range $65.35–$112.58; today's close sits at 62% of that range, 15.8% below the 52-week high.

Oct 8, 2026 — RIO ends flat (+0.2%) to $93.34

Closed at $93.34, +0.19% vs the prior close of $93.16. Day range $92.25–$93.51, opened at $92.33.
Volume was 1.49M shares, 0.7x its 50-day average of 2.13M.
Price is -5.7% vs its 50-day average ($98.97) and -2.7% vs its 200-day average ($95.96).
52-week range $65.35–$112.58; today's close sits at 59% of that range, 17.1% below the 52-week high.

Oct 7, 2026 — RIO dips 2.8% to $93.16

Closed at $93.16, -2.85% vs the prior close of $95.89. Day range $92.72–$93.60, opened at $93.47.
Volume was 2.25M shares, 1.0x its 50-day average of 2.14M.
Price is -5.9% vs its 50-day average ($98.97) and -2.8% vs its 200-day average ($95.88).
52-week range $65.35–$112.58; today's close sits at 59% of that range, 17.2% below the 52-week high.

Oct 6, 2026 — RIO ends flat (+0.3%) to $95.89, 3 up days in a row

Closed at $95.89, +0.25% vs the prior close of $95.65. Day range $94.27–$96.30, opened at $95.03.
Volume was 2.02M shares, 0.9x its 50-day average of 2.14M.
Price is -3.1% vs its 50-day average ($98.94) and +0.1% vs its 200-day average ($95.80).
52-week range $65.35–$112.58; today's close sits at 65% of that range, 14.8% below the 52-week high.
That makes 3 straight gains.

Oct 5, 2026 — RIO rises 1.5% to $95.65

Closed at $95.65, +1.53% vs the prior close of $94.21. Day range $94.11–$96.23, opened at $94.63.
Volume was 2.62M shares, 1.2x its 50-day average of 2.14M.
Price is -3.3% vs its 50-day average ($98.86) and -0.1% vs its 200-day average ($95.71).
52-week range $65.35–$112.58; today's close sits at 64% of that range, 15.0% below the 52-week high.

Oct 2, 2026 — RIO rises 1.4% to $94.21

Closed at $94.21, +1.44% vs the prior close of $92.87. Day range $93.16–$94.27, opened at $93.48.
Volume was 2.15M shares, 1.0x its 50-day average of 2.15M.
Price is -4.6% vs its 50-day average ($98.77) and -1.5% vs its 200-day average ($95.61).
52-week range $65.29–$112.58; today's close sits at 61% of that range, 16.3% below the 52-week high.

RIO latest news & SEC filings

Every SEC filing by or about RIO in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.

Oct 14, 2026 · Form 6-K — Report from a foreign company (6-K)