ARIS · Aris Mining Corporation

The thesis

Aris Mining Corporation still guides to first gold from Marmato's new carbon-in-pulp (CIP) plant in Q4 2026, but its 7 October 2026 production report moved 2026 output to the lower end of the 300,000–350,000 ounce range. The Q3 financial results, now confirmed for after the close on 4 November 2026, and a first pour by year-end settle whether the expansion case holds.

The shares closed at $17.03 on 21 October 2026 (adjusted U.S. closes), 24.9% below the 52-week high of $22.68 and up 16.2% over three months. The 14-day relative strength index (RSI) was 46.8, against 28.0 on 8 October 2026, so the heavy selling after the production report has eased. The narrative is maturing: the story is well known after the 9 September 2026 TSX30 recognition, and the next new information is the 4 November 2026 report.

Bullish and bearish views on Aris Mining Corporation

The bull case on Aris Mining Corporation (ARIS), in brief: Marmato timetable was reaffirmed. The bear case: Guidance now sits at the floor.

Bull case

• Marmato timetable was reaffirmed. The 7 October 2026 production release said Marmato's 5,000-tonne-per-day CIP plant "remains on track for first gold in Q4 2026". The third and final $42 million construction instalment from Wheaton Precious Metals was received in Q3.
• Nine-month output is still growing. Production for the nine months to 30 September 2026 was 217.3 thousand ounces, up 16% from the same period of 2025 (same release).
• The balance sheet is funded. Cash was $419 million at 30 September 2026, after $426 million at 30 June 2026, per the two company releases. Q2 gold revenue was $321 million at an average realized price of $4,450 per ounce (29 July 2026 results).
• That gives the first full look at margins since the lowered guidance.

Bear case

• Guidance now sits at the floor. The 7 October 2026 release said Aris remains on track to meet "the lower end" of the 300,000–350,000 ounce range. The 29 July 2026 results had reiterated the full range.
• Quarterly output fell. Q3 gold production was 69.3 thousand ounces, against 73.7 thousand in Q2. Segovia produced 63.4 thousand and Marmato 5.8 thousand (7 October 2026 release).
• Marmato lost a month of milling. Marmato produced 5.8 thousand ounces in Q3 against 9.3 thousand in Q2. The company attributed the drop to about four weeks of flotation plant downtime during the Cascabel 2 tailings transition.
• Cost and country exposure persist. First-half combined all-in sustaining cost was $1,974 per ounce (29 July 2026 results). Both mines are in Colombia, and Segovia alone produced 63.4 thousand of Q3's 69.3 thousand ounces.

Price setup

The adjusted U.S. close was $17.03 on 21 October 2026, against $16.76 on 8 October 2026 and $18.93 on 25 September 2025's equivalent mid-September high of the slide, recorded in the prior note as the 25 September 2026 close. The 52-week high is $22.68. The shares sit well below that high and have recovered part of the post-report drop.

The RSI of 46.8 is neutral. Retail-attention and insider-selling data were not available for this refresh, and no new SEC filings beyond the 7 October 2026 and 21 October 2026 company releases were found. The earnings date is 14 days after the latest close, so the shares carry event risk into early November.

Catalysts, next 30 days

• By 31 December 2026 (outside 30 days). Marmato first gold. A first pour confirms the schedule; none by year-end breaks the stated timetable.

Elapsed catalysts

• 4 November 2026, after the close. Q3 2026 financial results and a 5:00 pm Eastern call, per the company's 21 October 2026 announcement. A third-party calendar, Earnings Whispers, lists 5 November 2026, which conflicts with the company's date. The report shows margins, all-in sustaining cost, cash and any change to remaining Marmato capital. (passed 1d ago)

What would change the view

The case breaks if Marmato first gold moves into 2027, or if 2026 output guidance falls below 300,000 ounces at the Q3 report or a later update. A rise in remaining Marmato capital above the $118 million estimated as of 1 July 2026, or new financing, would also weaken it. A Colombian stoppage at Segovia would hit most of the company's output.

On price, a daily close below $15.00 would take the shares under the lows of the post-report slide and end the thesis. A report showing stable all-in sustaining cost and a dated first-pour window would strengthen it.

What it trades with

Aris trades with the gold price: the average realized price of $4,450 per ounce in Q2 2026 drives revenue. Peer gold producers with Latin American mines share the same bullion and country-risk drivers. Wheaton Precious Metals is a counterparty through its Marmato streaming agreement. The shares trade in Toronto and New York, so the Canadian dollar also affects the Toronto line.