The S&P 500 is wrapping up a tough month. Why April could be better

The S&P 500 is down more than 5% in March, pacing for its worst monthly slide since March 2025. Historically April is strong (average +1.4%) and often second-best month, but near-term risks — U.S.-Iran war spillover, rising oil prices and inflation concerns — plus midterm-election years (S&P April average -0.3%) create downside volatility. Almanac editor Jeffrey Hirsch expects choppy, range-bound action for several months with potential higher highs later in the year.

Analysis

Market participants who lean on calendar seasonality are implicitly short two outsized drivers today: geopolitical risk and policy uncertainty. A short-run April bounce, if it occurs, will likely be driven by technical and flow mechanics (month/quarter rebalancing, options expiries) rather than a durable de-risking of the Iran/Strait of Hormuz shock — meaning any gains could be transient and vulnerable to headline reversals within weeks. Rising energy prices create asymmetric payoff curves across sectors: energy producers and select industrials capture immediate cashflow upside, while consumer discretionary, airlines, and travel-exposed services face margin squeeze and demand elasticity that shows up inside a single reporting quarter.

Investor positioning is shallowly long equities but light on geopolitical hedges; realized vol has room to spike off tactical events even if the macro backdrop remains rangebound. Midterm-cycle policy uncertainty compounds this, shortening the investment horizon for cyclical names and amplifying the value of convex hedges (options, pairs) over naked directional exposure. The key catalysts to watch over the next 30–90 days are (1) any measurable disruption in tanker traffic or insurance rates through the Strait; (2) incremental US or allied military involvement; and (3) liquidity-driven rebalancing around index tracking dates — each can flip reward profiles quickly.

Consensus seasonal optimism is therefore a timing, not a directional, signal: flows that lift indices in April can invert as soon as geopolitical headlines deteriorate or as positioning squeezes unwind. That makes calendar-based longs most attractive when paired with explicit, low-cost downside protection or when implemented as short-dated, event-driven option structures. Conversely, durable multi-quarter themes — energy capex beneficiaries and defense contractors — deserve asymmetric exposure sized for binary outcomes rather than simple momentum chases.

Key Decisions for Investors

• Tactical pair (30–90 days): Long XLE / Short XLY equal-dollar. Rationale: captures oil-driven cashflow improvement vs consumer margin pressure; target +12–20% skew if oil rallies $5–10/bbl. Protect with a 4–6% stop on XLE leg or hedge with a cheap put on the pair; downside risk if rapid de-escalation, expect up to -8–10% drawdown without protection.
• Volatility hedge (0–60 days): Buy an April 1–2 month VIX call spread or long VXX weekly-leaning calls ahead of expected headline risk windows. Cost = small premium (<1–2% portfolio allocation); payoff = 3x–10x if realized vol doubles on a supply/strike event. Main risk: time decay if headlines calm — limit allocation to <2% of liquid portfolio.
• Exchange/Market-structure play (6–12 months): Overweight NDAQ stock or buy 9–12 month calls sized to 1–2% equity exposure. Rationale: elevated trading volumes, repricing of derivatives/clearing fees, and index rebalancing benefit exchange operators; upside 15–25% in persistent volatility regime, downside 10–15% in a broad liquidity/volume collapse.
• Defense/insurers (3–12 months): Long selective defense names (e.g., LMT/RTX) and specialty marine insurers/insurtech exposure via small-cap insurers or ETF sleeves. Rationale: durable contract and rate tailwinds if maritime risk premiums persist; target asymmetric 20%+ upside vs 10% downside on resolution. Size positions for binary event risk and use OTM puts to cap tail losses.