Alcoa stock closed Friday at $41.45, bull $41.80, bear…

The earnings rally in Alcoa did not survive the official close. Alcoa stock finished Friday, 16 October 2026, at $41.45, up $1.03, or 2.55 percent, from Thursday’s $40.42, with a year-end bull of $41.80 and a bear of $24.09. The same Nasdaq bar has a high of $44.348, 9.72 percent above Thursday, and a low of $41.08. The close is $0.20 under the $41.65 open. A 6.3 percent intraday claim was in circulation. From $40.42 that is $42.97, inside the range, and it is not the close.

The missing fact is that the beat is against the street, not against the second quarter. Adjusted earnings were $1.82. Rich Smith at The Motley Fool had the estimate near $1.54. MarketBeat had $1.51. Those pages are not averaged here. Adjusted net income was $485 million, down from $562 million in the second quarter. MarketBeat’s $62.17 average target is a third number, and it is not this bull.

What just happened, and why the obvious reading is wrong

The obvious reading is that a profit beat produced a rally, and that the rally is the new price. From Thursday’s $40.42 the shares opened at $41.65, traded as high as $44.348, and closed at $41.45. The close is up 2.55 percent. The high is up 9.72 percent. Most of the spike did not get to the bell.

Patrick Martin at Schaeffer’s wrote, at 9:51 a.m. Eastern on 16 October, that the stock was “1.9% higher to trade at $41.27 this morning.” That print is $0.18 under the close and $3.08 under the high. The morning was not the high, and the high was not the close.

The close-to-close log-return, the natural log of $41.45 over $40.42, is 0.02516. Sample sigma is 0.03058, so Friday’s close was 0.82 of one standard deviation.

The week does not rescue it. The 9 October close was $42.20, so Friday is down $0.75, or 1.78 percent. From the 31 December 2025 close of $53.14 the stock is down 22.00 percent. From the 2 June 2026 close of $83.79 it is down 50.53 percent.

Adjusted earnings of $1.82 cleared Smith’s about $1.54 and MarketBeat’s $1.51, and they were $2.12 in the second quarter. Adjusted net income fell $77 million, or 13.7 percent, from $562 million. Adjusted EBITDA excluding special items fell $112 million, or 12.4 percent, from $901 million. GAAP net income rose from $407 million to $483 million. The release ties that GAAP rise to mark-to-market gains on energy contracts and Ma’aden shares, against lower aluminum prices and shipments.

Who is exposed

Equity holders are first. Smith’s piece, next to the 4:00 p.m. Eastern print of $41.45, puts market cap at $10.94 billion. Divided by the close, that is about 264 million shares. The 8-K passages used here do not restate shares outstanding, so the count stays his.

The September notes are the new debt. Alcoa sold $1.5 billion of 6.625 percent notes due 2034 and $1.1 billion of 6.875 percent notes due 2036, then ended the bridge. Proceeds plus cash on hand are meant for the about $3.1 billion AliGroup check and the fees. Cash of $4.4 billion includes the $2.6 billion raised, so the rest is about $1.8 billion.

Alumina third-party revenue rose 7 percent sequentially to $680 million. Aluminum third-party revenue was $3 billion, down 9 percent, on lower prices and on shipments that normalized after the second quarter. Molly Beerman, executive vice president and chief financial officer, told Carlos de Alba on the call that about 30,000 metric tons of repositioned inventory did not repeat.

The April note on talks to sell Massena East to NYDIG is not this filing. That piece reported talks and a hoped-for middle-of-2026 close. Exhibit 99.1 now reports definitive agreements for portions of the site, up to $315 million, with $50 million to $65 million at closing and as long as seven years to commission. Beerman said the data-center permit starts at 180 megawatts, with steps of 300 and 200, so the site could reach 635. The October release does not name NYDIG.

What the tape and the 15 October release show

The file and Exhibit 99.1 separate the close, the high, and the quarter. A beat against the street is not a rise against the second quarter, and a high is not a close.

Output rose while adjusted profit fell. Alumina production increased 11 percent sequentially to 2.5 million metric tons, which the release ties to Pinjarra. Aluminum production rose 2 percent to 649,000 metric tons, a sixth straight quarterly gain, with the Alumar restart completed. Alumina shipments rose 2 percent. Aluminum shipments fell 5 percent.

Guides were reaffirmed, not raised: alumina production 9.5 million to 9.6 million metric tons and shipments 11.5 million to 11.6 million, aluminum production 2.4 million to 2.6 million and shipments 2.6 million to 2.8 million. Fourth-quarter alumina adjusted EBITDA is expected flat. Aluminum faces about $30 million from raw materials and maintenance and about $30 million from alumina costs. Other income is expected up about $20 million on interest on the deal cash. Full-year interest expense is now about $185 million. Fourth-quarter operational tax is about $65 million to $75 million.

What Oplinger and Beerman have said

William F. Oplinger, president and chief executive, is quoted in Exhibit 99.1. “During the third quarter, we advanced the AliGroup acquisition, delivered improved refinery performance, and increased production across our smelting portfolio,” he said. “As we look ahead, we remain focused on strengthening safety performance, sustaining operational stability, and building on this momentum as we work toward closing the AliGroup acquisition in the first half of 2027.”

On the 15 October call, in the Motley Fool transcript, he addressed a fatality on 16 September at Alumar in Brazil: “There is no production target, financial result or business objective that is more important than ensuring every employee and contractor returns home safely every day.”

Beerman said: “On an adjusted basis, net income attributable to Alcoa remained strong at $485 million compared with $562 million in the second quarter.” She put GAAP net income at $483 million, or $1.81, against $407 million, and revenue at $3.7 billion, “with the sequential change primarily reflecting lower metal prices.” “Remained strong” describes a sequential drop.

Prepared alumina comments put the price index near $370 a metric ton, with tightening outside China. In the questions he put a live level near $387, still short of a contract strike. He expects about 1.5 million metric tons of Indonesian smelting capacity in 2027 on a market of about 75 million tons, and he thinks that market can absorb it. The fuller view, he said, is a January conversation.

The transcript also has the mine sentence. “The mining approvals are taking longer than expected. Several steps remain, including the appeals process and final ministerial decisions, and we now expect the process to extend into 2027.” The company has added six months of mining in current areas. That does not explain a Friday close of $41.45.

Smith wrote: “Heading into the report, analysts had Alcoa pegged for a $1.54 per share profit, but the aluminum giant actually earned $1.82 per share (adjusted for one-time items).” Finsee posted on 15 October: “Alcoa’s smelters ran better than ever, but a lower aluminum price took back more than the plants delivered.” That account is a cashtag recap, not a target.

The tariff, the strait, and the mine plan

Timna Tanners of Wells Fargo asked about a Canadian aluminum-tariff carve-out. Oplinger said the company does not know the talks and has offered data to both governments. “What really matters is whether the U.S. will remain short,” he said. If Canada were carved out or paid a lower tariff, “we believe that still the marginal ton will come from outside of North America,” and the Midwest premium should stay strong. He called it speculation.

Canada’s counter-tariffs took effect at 12:01 a.m. on 8 September 2026, at 15, 25 and 50 percent, on C$27.6 billion of U.S. goods. That is the other direction of the border. It is not his answer, and it is not Friday’s print.

On Hormuz he said: “I think the world has changed when it comes to aluminum within the Strait of Hormuz.” Flows will take time to normalize, and “we’re still sitting at close to $3,000 a ton.” Brent near $104 on 15 October is the oil tape from the same strait. It is not an aluminum settlement and not an input to these scenarios. The release also refuses to reconcile forward-looking adjusted profit to GAAP, because mark-to-market items are too variable. This quarter’s GAAP beat is that kind of item.

Bull, base, and bear into 31 December

The title prices are distribution maths on Alcoa’s closes. They are not the $62.17 average, the $80 high, the $50 low, or 6.3 times $6.81. The 2 June high of $84.38 is a traded price, not this bull.

The last 90 log-returns use closes from 9 June 2026 at $72.41 through 16 October at $41.45, which is 91 closes. The 2 June peak is outside that window. Mu is -0.00619841. Sigma, sample standard deviation with 89 in the divisor, is 0.03057861.

N is 52, Monday 19 October through Thursday 31 December 2026, weekends out. The full closures skipped are Thanksgiving on 26 November and Christmas on 25 December. Early closes on 27 November and 24 December count. The split is 10, 20 and 22 sessions.

The square root of 52 is 7.21110. Fifty-two times mu is -0.322317. One and a half sigma times that root is 0.330758. One sigma times it is 0.220505. Drift nearly matches the upside shock, so the bull only clears a falling spot. This is not financial advice.

Base is $41.45 times e to the power of -0.322317, or times 0.724468, which is $30.03, down $11.42, or 27.55 percent. Bull is $41.45 times e to the power of -0.322317 plus 0.330758, or times 1.008477, which is $41.80, up $0.35, or 0.84 percent. Bear is $41.45 times e to the power of -0.322317 minus 0.220505, or times 0.581106, which is $24.09, down $17.36, or 41.88 percent.

The bull stayed above the spot, so the drift stayed in. The no-drift rule applies only when the bull would print below the spot. $41.80 is under Friday’s $44.348 high, under the 6 October close of $43.17, and $20.37 under the $62.17 average. The bear is under the 21 November 2025 low of $35.12.

What happens next

Monday 19 October is the first session that can confirm Friday, and the file has no Monday price. One sample deviation is about 3.1 percent, roughly $1.27. That is an ordinary day here, not a forecast that Monday moves $1.27. Friday closed under the open after printing $44.348. If Monday cannot hold $41.45, the spike was one session. A move through $44.348 would be a new bar, not a repaired Friday.

Fourth-quarter alumina adjusted EBITDA is described as flat, with about $60 million of unfavorable aluminum items against about $20 million of extra other income. If the metal price does not cover that gap, profit can soften while $30.03 is still only the drift. Oplinger said the next conversation is in January, including Indonesia’s 2027 tons. That call is after 31 December, so it is outside N. AliGroup closes in the first half of 2027. He said about a dozen approvals are outstanding, some are done, he sees no red flags, and China approval is not required. The bull does not assume the $3.1 billion is paid. The bear does not assume the deal breaks.

Frequently asked questions

Did the earnings rally hold?

No. The Nasdaq file for 16 October 2026 shows a close of $41.45, up $1.03, or 2.55 percent, from Thursday’s $40.42. The same bar’s high is $44.348, 9.72 percent above Thursday, and the close is $0.20 under the $41.65 open. A 6.3 percent rise from $40.42 would be $42.97, inside the range, and it is not the close. The close-to-close move was 0.82 of one sample standard deviation.

Where do the year-end bull and bear sit?

The bull is $41.80 and the bear is $24.09. The base is $30.03. All three use Friday’s $41.45, the last 90 daily log-returns, and 52 sessions through 31 December 2026. Mu is -0.00619841 and sample sigma is 0.03057861. They are not MarketBeat’s $62.17 average, and they are not 6.3 times a $6.81 earnings figure.

Did Alcoa beat profit estimates and miss on sales?

Yes, on the pages saved here, and the estimates are not blended. Adjusted earnings were $1.82 in Exhibit 99.1. Smith wrote that analysts had been near $1.54. MarketBeat wrote a $1.51 consensus and a $0.31 beat. Filing revenue was $3,704 million, up 23.7 percent from $2,995 million. Smith called sales short of about $3.8 billion. MarketBeat called them short of $3.77 billion.

Why is the bull only $0.35 above the close?

Because the last 90 sessions were a decline. The mean daily log-return is -0.00619841. Over 52 sessions that drift alone takes $41.45 to $30.03. Adding 1.5 standard deviations lifts the path only to $41.80, still under Friday’s high of $44.348. The drift stays in because the bull did not print below the spot.

What did the chief executive actually say?

In Exhibit 99.1, William F. Oplinger said the quarter advanced AliGroup, improved the refineries and raised smelting output, with the focus on safety, stability and a first-half 2027 close. On the call he said Western Australia mine approvals now run into 2027, and that a Canadian tariff carve-out would still leave the marginal U.S. ton coming from outside North America. Those lines are not a target.

Is MarketBeat’s $62.17 the base case?

No. That figure is the average of 13 analyst targets on a 16 October 2026 page, beside a $41.46 screen, a high of $80 and a low of $50. The base here is $30.03, only the recent daily drift carried to 31 December. The methods differ. The $50 low is still $8.55 above Friday’s official close, and neither figure is a Monday promise.