NEXA · Nexa Resources S.A. · Stock research

Current Thesis

The commodity leg re-accelerated in the week after the last note while the equity's valuation frame stayed put. LME zinc was quoted at US$3,816.48/t on 2026-08-23 (metalcharts.org) against US$3,693.83/t on 2026-08-09; TradingEconomics dates the push above US$3,750/t as the highest since June 2022 and attributes it to Chinese production disruption and LME warehouse stocks at their lowest since December. The equity followed: it closed $14.18 on 2026-08-14 and $15.40 on 2026-08-21, 6.9% under the $16.55 52-week high, with RSI(14) at 69.5.

The $11–12 base flagged in the prior note never formed, and the re-pricing that did happen came from the metal rather than from any change in how the covering desks value the company. Below the 2026-08-21 close of $15.40. Bank of America's Lawson Winder reiterated Sell at US$14 on 2026-08-17, dated after both the beat and the move through $14.

The narrative is maturing. The confirming datapoints are dated and already in hand (2026-08-05 Q2 print; 2026-08-23 zinc quote). Flow is moderating in a measurable way — the aggregate target moved US$14.75 → US$14.88 (TradingView, referencing the 2026-08-18 close) while a desk reiterated Sell into strength. And no company-dated disclosure lands before the ~October Q3 sequence.

Bullish and bearish views on Nexa Resources S.A.

The model's bull view on Nexa Resources S.A. (NEXA), in brief: 2026-08-05 Q2 print: adjusted EBITDA US$286M (+78% YoY), net revenues US$908M (+28% YoY), net income US$98M against US$13M in Q2 2025, EBITDA margin 31.5%. The bear view: The stock trades through the consensus. The 2026-08-21 close of $15.40 sits above the US$14.88 average target and above every published target except RBC's US$16. A Sell was reiterated into strength. BofA's Lawson Winder, US$14, 2026-08-17. Two consecutive quarters of large… Both cases follow in full.

Bull Case

• 2026-08-05 Q2 print: adjusted EBITDA US$286M (+78% YoY), net revenues US$908M (+28% YoY), net income US$98M against US$13M in Q2 2025, EBITDA margin 31.5%.
• H1 in the 6-K (August 2026): six-month net income US$215.9M versus US$42.0M in H1 2025; H1 earnings per share US$1.19.
• Leverage keeps falling: net debt/LTM adjusted EBITDA 1.40x at 2026-06-30, from 1.59x in Q1 2026 and 2.28x in Q2 2025, with net debt broadly stable QoQ and -3% YoY.
• Aripuanã is delivering tonnes: Q2 zinc production 8,800t (+44% YoY) on treated ore of 399,000t (+33% YoY); fourth tailings filter commissioned in the quarter; utilization averaged 71% for Q2 and exceeded 86% in June.
• The metal is making new highs, not retracing them: US$3,816.48/t on 2026-08-23 versus US$3,693.83/t on 2026-08-09 and the ~US$3,622/t mark set on 2026-07-09. With roughly 60% of revenue in zinc, that transmits to EBITDA with little lag; the Q2 print is the demonstration.
• The published target set re-based upward. The same stockanalysis.com aggregation that showed an average of US$11.81 with a US$6 low earlier in August showed US$14.88 average, US$16 high and US$13.50 low on 2026-08-23. Dispersion collapsed from the bottom of the range.

Bear Case

• The stock trades through the consensus. The 2026-08-21 close of $15.40 sits above the US$14.88 average target and above every published target except RBC's US$16.
• A Sell was reiterated into strength. BofA's Lawson Winder, US$14, 2026-08-17.
• Two consecutive quarters of large EBITDA growth have produced zero upgrades to Buy. The split was 0/7/1 on 2026-08-23, unchanged in character from the July reading.
• The beats run through the commodity line, not the cost line. Q2 adjusted EPS US$0.64 against US$0.62 (MarketBeat) and US$0.61 (Benzinga) consensus prints; Q1 2026 adjusted EPS of US$0.67 missed US$0.68 on a revenue beat.
• Spot zinc is above published forecast paths. The World Bank models a US$3,400/t 2026 average easing to US$3,100/t in 2027; spot on 2026-08-23 is above both, so the EBITDA run-rate being capitalised assumes the forecasters are wrong.
• Nothing company-dated for roughly eight weeks. Between 2026-08-23 and the ~2026-10-20 production report there is no scheduled Nexa disclosure to refresh the story; the marginal input is the LME.
• Thin float amplifies both directions: roughly 64% Votorantim ownership against ~36% free float, the structure behind the 2026-04-15 circuit-breaker halt.

Setup & Price Structure

Reference close 2026-08-21: $15.40. The equity left the $12.32–13.01 July congestion after the 2026-08-05 print and has held above it; the August breakout shelf is the structure the current leg rests on. Distance from the $16.55 52-week high is -6.9%. RSI(14) reads 69.5 — extended, short of the classic 70 threshold, and reached without a company catalyst.

Crowding and positioning observables, stated as observables:

• Price above the 8-desk average target (US$14.88 on 2026-08-23) and above the second-highest target (US$14, BofA 2026-08-17 and Scotiabank 2026-08-07). Only RBC's US$16 sits above spot.
• The three-month price change read -3.5% at the 2026-08-14 close and +7.5% at the 2026-08-21 close — the trailing window flipped sign in five sessions.
• RSI(14) 69.5 at 2026-08-21, against a stock that was chopping $12.32–13.01 six weeks earlier.
• No earnings date inside 30 days, so the usual pre-print crowding pressure is absent; the flip side is that there is no scheduled event to resolve the extension either.
• The insider check is structurally unavailable: Nexa is a Luxembourg-domiciled foreign private issuer reporting on 6-K/20-F, so Section 16 Form 4 data does not exist for this name.
• No secondary offering or share issuance appears in the filings surfaced through 2026-08-23; the issuance-into-strength check is not flagged, but absence of a surfaced filing is weaker evidence than a filed negative.

Catalyst Calendar (next 30 days)

• No company-dated event falls inside the window to 2026-09-22. The 2026-08-05 Q2 release and the August Form 6-K interim statements are done; nothing is scheduled between them and the Q3 sequence.
• ~2026-10-20 (est.), outside the window: Q3 2026 production report. First clean sequential read on Aripuanã against the Q2 mark of 8,800t zinc and 71% average utilization, and on whether June's >86% carried into H2.
• ~2026-11-04 (est.), outside the window: Q3 2026 results, extrapolated from the 2026-05-06 and 2026-08-05 release dates. Tests whether smelting sales recover above the 134kt Q2 level and whether leverage extends below 1.40x.

Elapsed catalysts

• Ongoing, daily: LME zinc warehouse stock reports and the LME three-month settlement. With no company disclosure in the window, these are the only dated inputs that move the read — TradingEconomics flagged LME inventories at their lowest since December as of 2026-08-22. (passed 4d ago)

What Would Change Our Mind

The August advance was bought from the metal, so the structure that matters is the shelf left behind when the equity cleared the $12.32–13.01 July congestion after the 2026-08-05 print. Losing that shelf on a weekly close below $13 would mean the zinc bid stopped transmitting to the equity — the same failure pattern that produced the July divergence, in reverse. That is the gradeable break.

Three non-price conditions would independently reset the read:

1. LME zinc three-month sustaining under US$3,400/t — the World Bank's own 2026 average — would remove the input that carried the move from $14.18 to $15.40, given there is no company disclosure in the window to replace it.
2. The ~2026-10-20 production report showing Aripuanã zinc below 8,800t or plant utilization back under 71% would break the operational half of the case and leave the equity a pure commodity proxy at a price above consensus.
3. A full Q3 reporting cycle passing with the 0-buy/7-hold/1-sell split intact would date the absence of a re-rate at three consecutive quarters of EBITDA growth, which is the specific thing this narrative has not yet produced.

Conversely, the first Buy/Outperform initiation or upgrade from any of the eight covering desks would be new information — the desk group has not moved off Neutral through two large beats, and a break in that would change what the target set implies about the ceiling.

Correlation Notes

• LME zinc three-month is the dominant driver: roughly 60% of revenue, transmitted to EBITDA with little lag. Chinese smelter and mine-supply headlines drive the metal, so NEXA inherits China supply-side news it has no exposure to operationally.
• Silver matters more than it used to. The Cerro Lindo silver stream stepped from 65% to 25% in Q2 2026, permanently raising the equity's sensitivity to the silver price on by-product credits.
• BRL and PEN set unit costs — operating assets sit in Brazil and Peru, so FX moves hit margins independently of the zinc price.
• Peruvian political and community risk is idiosyncratic to the Andean base-metal complex: royalty or levy changes, rainfall and blockades hit Cerro Lindo/Atacocha volumes on their own schedule, as in the Q1 2026 period.
• Float structure decouples short-horizon price action from fundamentals: ~36% free float against ~64% Votorantim ownership makes headline-day moves larger than the underlying change, the mechanism behind the 2026-04-15 upside circuit-breaker halt.