Mexican IPC Drops 3% in Worst BMV Session Since April on Iran Panic

BMV / S&P IPC Daily Report  ·  March 4, 2026  ·  Covering March 3 Session

01 Session Data

02 Key Movers

03 Market Commentary

Tuesday’s session delivered the BMV’s worst single-day loss since April 4, 2025, when the IPC fell 4.87%. The index opened at 70,241.89 and immediately came under heavy selling pressure, plunging as deep as 66,938.45 — a 3,303-point intraday range — before staging a partial recovery in the final hour after Trump’s tanker escort announcement. The close at 68,436.26 represented a loss of 2,148.49 points, or 3.04%. Combined with Monday’s 1.15% decline, the IPC has shed over 4% in two sessions.

The materials and mining sector was ground zero for the selloff. Grupo México, the index’s heaviest constituent by market cap, plunged 6.92% as global demand fears intensified — copper prices fell on recession anxiety despite the supply disruption narrative. Industrias Peñoles dropped 6.07% and Orbia Advance lost 5.58%, while Cemex — highly sensitive to U.S. construction activity — fell 4.02%. Megacable was the session’s worst performer among IPC constituents, losing 6.77%. Gabriela Siller of Banco Base noted that energy commodities continued to pressure markets higher, with natural gas gains particularly impacting European equity sentiment and feeding through to Latin American risk appetite.

The peso suffered its fourth consecutive session of losses. The Banxico FIX was set at 17.7228, reflecting a 2.92% depreciation from the prior session’s 17.2193. Spot touched 17.85 intraday before pulling back to close around 17.63–17.67 in the interbank market. Grupo Financiero Monex noted that the peso ranked among the five worst-performing EM currencies on the day, behind the Hungarian forint (−3.15%), the South Korean won (−2.69%), and the Chilean peso (−2.13%). The carry trade — which had supported the peso through much of 2025 — is unwinding as the VIX spikes and global risk appetite collapses.

Ramsé Gutiérrez of Franklin Templeton highlighted that the dominant investor read is that the conflict is increasing the geopolitical risk premium in a context where equity valuations were already stretched. Despite the YTD gain of 6.78%, according to Actinver’s Enrique Covarrubias, the index sits 5.1% below its February 12 all-time high of 72,111.41 and the risk-reward has deteriorated sharply. Wall Street’s own recovery — the S&P 500 clawed back from −2.5% to close just −0.94% — offered some late relief, but the damage to EM sentiment had already been done.

04 Technical Analysis

Tuesday’s massive bearish candle sliced through the Ichimoku Cloud, a dramatic technical breakdown. The close at 68,436.26 fell below the Tenkan-sen (68,279.59) and decisively through both the Senkou Span A (69,469.66) and Senkou Span B (69,524.93). This is the first close below the cloud since the index entered it in late December, and marks a significant deterioration in the medium-term trend structure. The Kijun-sen at 69,414.39 becomes immediate overhead resistance.

The MACD histogram flipped decisively negative at −369.00, with the MACD line at 923.87 and signal at 554.87. While the MACD line remains above zero and the signal, the histogram’s sharp plunge signals rapid momentum deterioration — a bearish crossover is likely within sessions if selling continues. The RSI dropped to 59.55 (fast) with the slow line at 40.66, indicating the index has exited overbought territory but is not yet oversold, leaving room for further downside.

The Bollinger Band midline at 67,286.24 was briefly violated intraday (low: 66,938.45) before the bounce. The lower band sits at approximately 61,991.79 — over 9% below — indicating the bands are wide and the index has room to compress further. The 200-day SMA is far below around 55,000, confirming the secular uptrend remains intact despite the near-term violence. The upper band at 69,524.93 aligns closely with the Ichimoku cloud top, creating a significant resistance zone between 69,400 and 69,525.

05 Forward Look

Iran and Oil Pass-Through:

Mexico is a net oil exporter but also a major refined product importer, making the Hormuz disruption a double-edged sword. Higher crude benefits Pemex revenues but pushes up gasoline and natural gas import costs, directly feeding into the IEPS-adjusted consumer price basket. If Brent sustains above $80, the inflation convergence path toward Banxico’s 3% target — projected for Q3 2026 — becomes increasingly unrealistic, reducing the probability of rate cuts this year.

Banxico March 26 Decision:

The central bank paused unanimously at 7.00% on February 5, and the oil shock has cemented expectations of an extended hold. Core inflation remains above 4% at 4.47%, and the peso‘s rapid depreciation adds imported price pressure. Natixis IM, HSBC, and Santander all project no rate cuts in 2026, while the broader consensus sees at most two 25 bps cuts to 6.50% — likely pushed well into H2.

T-MEC and Trade Policy:

Trump’s announcement cutting trade relations with Spain added a fresh layer of geopolitical anxiety. For Mexico, the T-MEC renegotiation — scheduled for 2026 — remains the existential trade risk. Any signal of U.S. protectionist escalation beyond the Iran conflict would compound the peso’s weakness and further pressure the BMV, particularly for export-dependent names like Cemex, Grupo México, and the auto-parts sector.

Verdict

The IPC’s break below the Ichimoku Cloud is the session’s most significant technical development. The index had been trading inside or above the cloud since late December, and Tuesday’s decisive close beneath both Senkou spans represents a structural shift from bullish to neutral. The MACD histogram’s sharp negative pivot and the RSI’s departure from overbought territory confirm the momentum reversal.

The peso’s vulnerability is the deeper concern. A sustained move above 18.00 in USD/MXN would trigger a self-reinforcing cycle — foreign investors liquidating MXN-denominated equities to hedge currency exposure, which weakens the peso further, which triggers more selling. The carry trade that supported Mexico through 2025 is now a liability as the VIX climbs and rate-cut expectations evaporate globally.

The structural bull case is not dead — the IPC’s 6.78% YTD gain reflects genuine nearshoring momentum, World Cup infrastructure spending, and a still-generous carry. But the near-term technical damage is severe, and the geopolitical overlay is worsening rather than stabilizing. The Bollinger midline at 67,286 is the immediate line in the sand; below that, the March 3 intraday low of 66,938 is the last stand before a much deeper correction toward the 64,000 zone.

Bias: BEARISH — downgraded from Neutral. Close below cloud, MACD histogram turning negative, and peso under severe pressure form a trifecta of warning signals. Need a reclaim of 69,525 (cloud top) to stabilize; below 67,286 opens 64,000.

This report is for informational purposes only and does not constitute investment advice. Past performance is not indicative of future results. All data sourced from BMV, TradingView, Trading Economics, Expansion.mx, El Financiero, Milenio, Infobae, Bloomberg Línea, Banco de México, CNBC. Chart: TradingView (riotimesonline). Report by The Rio Times. Verify all figures independently before making investment decisions.