Ibovespa Drops 2.64% as Iran Strikes U.S. Tanker

B3 / Ibovespa Daily Report · March 6, 2026 · Covering March 5 Session

01 Session Data

02 Key Movers

03 Market Commentary

Thursday’s session destroyed the narrative of a sustainable recovery. The Ibovespa opened nearly flat at 185,365 — precisely at Wednesday’s close — then sold off relentlessly, closing at 180,463.84 for a loss of 4,903 points and a decline of 2.64%. At its nadir, the index touched 179,895, marking a 2.95% intraday drawdown. Only six of the 85 index constituents finished positive: Braskem, PRIO, Raízen, PetroReconcavo, Brava Energia, and Ultrapar — all oil or petrochemical plays. Volume surged to R$ 32.41 billion, confirming that the selling was conviction-driven, not illiquid drift.

The catalyst was unambiguous. On the sixth day of the conflict, Iran’s Revolutionary Guard hit a U.S. petroleum tanker in the northern Gulf and formally declared that Hormuz passage was under Islamic Republic control during wartime. The move escalated a crisis that markets had tentatively begun to discount on Wednesday; it also undercut any diplomatic optimism from the previous day’s reports of Iranian backchannel contact with the CIA. Brent crude surged 4.93% to $85.41 — its highest since mid-2024 — and the U.S. dollar strengthened broadly, with the DXY climbing to 99.23. The real gave back all of Wednesday’s gains, closing at R$ 5.2870, up 1.32% on the day.

The damage to Brazil’s rate-expectations complex was severe. DI futures jumped across the curve, with the January 2028 contract rising 19 basis points to 12.975% and the January 2035 tenor surging 24 bps to 13.68%. BCB Monetary Policy Director Nilton David, speaking at a Goldman Sachs event, cautioned that the Middle East conflict brings “relevant doubts” for the economic outlook, particularly through oil-to-inflation transmission. The market’s message was clear: Copom may still cut on March 17–18, but the size of the cut is no longer assured at 50 bps, and the tail risk of a pause is growing. XP Investimentos maintained its call for a 50 bps reduction but acknowledged the repricing risk.

Domestically, the unemployment data and trade surplus were overshadowed by geopolitics. IBGE reported that unemployment rose to 5.4% in the January trimester, slightly higher than the 5.1% in Q4 but stable versus the prior rolling period — still near historic lows. The February trade surplus came in at $4.208 billion, essentially matching the Reuters consensus of $4.228 billion. Under normal circumstances these would have been supportive prints; on Thursday they were footnotes. The post-close release of Petrobras’s 4T25 results — net income of R$ 15.6 billion reversing a year-ago loss, with R$ 8.1 billion in dividends beating the R$ 6.7 billion consensus — provides the only genuine positive catalyst heading into Friday’s session.

Wall Street mirrored the risk-off tone. The Dow plunged 785 points (−1.61%) to 47,954, having been down more than 1,100 at its worst. The S&P 500 fell 0.56% to 6,830.71, and the Nasdaq shed 0.26% to 22,748.99 — paring steeper losses in the afternoon. Goldman Sachs and Caterpillar, the Dow’s heaviest weights, each dropped over 3.5%. Europe’s Stoxx 600 fell 1.29% to 604.83 and Germany’s DAX lost 1.61%. Asia had rallied earlier in the day — the Nikkei gained 1.90% and the Hang Seng rose 0.28% — but those gains were achieved before the Gulf tanker incident hit newswires. The VIX surged 11.6% to 23.61, erasing Wednesday’s improvement and signaling that volatility is reaccelerating.

04 Technical Analysis

Daily (1D):

Thursday produced a devastating bearish engulfing candle. The session opened at the prior close of 185,365 — essentially the intraday high at 185,366 — and sold straight through every support level identified in Wednesday’s report, closing at 180,464 near the lower end of the range. The close sits just above the Bollinger midline at 180,241.80, which now becomes the critical line in the sand. A break below this level opens the path toward the 50-day moving average at 175,715.63 and the Ichimoku Senkou Span A at 174,487.19.

The MACD histogram deteriorated sharply to −1,615.46 (MACD line: 4,056.27; signal: 2,440.81), the most negative reading in months and a decisive deepening from Wednesday’s −1,233.83. The bearish momentum is accelerating, not consolidating. RSI collapsed to 44.53 from 63.70, crashing through the neutral 50 level for the first time since the December correction — a significant shift in momentum character. The Stochastic RSI component dropped to 44.53, confirming oversold conditions are approaching but not yet reached. The 200-day SMA at 151,433.54 remains structurally distant, confirming the secular uptrend’s survival even as the medium-term picture turns decidedly bearish.

05 Forward Look

U.S. Payroll — Friday, March 6:

The official February employment report is today’s marquee data release, with the Projeções Broadcast consensus at 55,000 jobs. Wednesday’s ADP beat (63,000 private-sector additions vs. 48,000 expected) raised the bar. A strong reading would reinforce the Fed’s higher-for-longer stance, push the dollar higher, and compound pressure on emerging-market assets. A soft print reopens the rate-cut narrative and could provide partial relief to rate-sensitive B3 sectors.

Petrobras 4T25 Teleconference — Friday, March 6:

Petrobras’s management discusses its R$ 15.6 billion quarterly profit and R$ 8.1 billion dividend package with analysts today. The teleconference will likely address the company’s perspective on the oil price environment created by the Iran conflict, its hedging posture, and implications for the 2026 capex plan. Given PETR4’s weight in the Ibovespa, any forward guidance surprise — particularly on dividends or production — has index-level significance.

Strait of Hormuz and the Oil Ceiling:

Brent at $85.41 is a threshold that changes inflation calculus for every central bank globally. President Trump pledged U.S. Navy escorts for tankers through Hormuz, but Iran’s attack on a U.S. vessel in the Gulf demonstrates the practical limits of that guarantee in an active combat zone. If Brent breaks above $90 and sustains, the repricing of global rate expectations would intensify dramatically, with direct consequences for the Copom’s March 17–18 meeting and the entire trajectory of Brazil’s easing cycle.

Copom March 17–18 — Repricing in Progress:

The DI curve’s aggressive repricing on Thursday signals the market no longer takes a 50 bps cut as a certainty. BCB Director Nilton David’s comments — emphasizing “serenity” amid “relevant doubts” — suggest the board is actively debating how to calibrate policy in an oil-shock environment. A 25 bps cut or even a pause would be hawkish surprises with significant negative implications for the rate-sensitive names that dominate the small- and mid-cap space.

Verdict

Thursday confirmed what Wednesday only hinted at: the Ibovespa is in a geopolitical correction, and the dip-buying playbook that worked for most of 2026 is on hold. The index has now shed roughly 12,160 points — 6.3% — from its February 25 all-time high of 192,624 to Thursday’s close. The 181,000–183,000 support zone that held on Wednesday was breached decisively, with the close at 180,464 resting just 222 points above the Bollinger midline. The breadth collapse — six of 85 stocks positive — is not a healthy correction; it is a capitulation-style sell-off driven by external shock.

The transmission mechanism from Hormuz to Copom is now live and priced. With Brent at $85, the BCB faces an impossible trilemma: an oil-driven inflation impulse, a domestic economy still running near full employment (5.4% unemployment), and a campaign commitment to begin easing. Director David’s language was carefully calibrated to keep all options open. The DI curve’s 20+ bps jump tells you the bond market is not waiting for the committee — it is pre-empting a more cautious outcome.

Friday’s payroll report adds another layer of binary risk. Petrobras’s above-consensus earnings and dividends are a genuine positive, but their index-level impact depends on whether the oil bid sustains or reverses — and that, in turn, depends entirely on headlines from the Gulf. The technical picture is deteriorating rapidly: RSI at 44.53 has broken below neutral, the MACD histogram is at its most negative in months, and the Bollinger midline is the last structural support before a 3,000-point air pocket to the 50-day MA at 175,716.

Bias: BEARISH — downgraded from Neutral. The 180,242 Bollinger midline is the line in the sand. A close below this level targets 175,716 (50-day MA) and 174,487 (Ichimoku cloud top). Only a close above 185,366 — Thursday’s open — would restore Neutral bias. Headline risk from Hormuz dominates all technical and fundamental considerations.

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