The S&P 500 closed at 6,506.48 on Friday — below its 200-day moving average for the first time since May 2025. The Nasdaq fell 2.01% to 21,647. The Dow shed 443 points to close at 45,577. Most strikingly, the small-cap Russell 2000 slipped into formal correction territory — down more than 10% from its recent high. At their intraday lows, both the Dow and Nasdaq also briefly entered correction territory before clawing back to close just above the threshold.
The trigger was a week of escalating war headlines, a JPMorgan target cut, and a Federal Reserve that held rates steady while offering no comfort on inflation. After nearly three weeks of the US-Israel conflict with Iran, markets are asking the question they've been avoiding: has Wall Street fully priced in a prolonged war?
BELOW THE 200-DAY: WHY IT MATTERS
The 200-day moving average is the most widely watched technical level in equity markets. Fund managers, quant desks, and retail traders all treat it as a dividing line between a healthy bull market and a deteriorating one. The S&P 500 hadn't closed below it since May 2025 — a period covering nearly 10 months of steady grinding higher.
Thursday's close pushed the index under that line. Friday's session confirmed it. The RSI sat at 35.9 — approaching oversold territory — while MACD and momentum readings confirmed the downside bias. The ADX registered 24.75, just below the 25 threshold that would confirm an established downtrend, meaning the selloff has weight but hasn't yet shown full directional conviction. That gap leaves room for a sharp bounce if war headlines turn.
The key support ladder looks like this: the 200-day MA at approximately 6,601 has now been breached. The November 2025 closing low at 6,522–6,538 is the next line. Below that sit technical support zones at 6,445–6,450 and then 6,275–6,280. JPMorgan's strategists, in cutting their year-end target, identified 6,000–6,200 as the next real floor if selling extends — a further 5–7% decline from current levels.
JPMORGAN VS GOLDMAN: THE THESIS WAR
The most important split on Wall Street this week wasn't between bulls and bears in the abstract — it was between two specific banks with fundamentally different reads on whether the Iran war's damage is contained or systemic.
Goldman Sachs landed a research note arguing that the supply shock appears narrowly concentrated in the energy sector — a key distinction from the broad 2021–2022 inflation surge that hit every corner of the economy. The note gave markets enough cover to stage a 1% relief rally on March 16, the S&P 500's strongest single session in five weeks.
JPMorgan took the opposite view. Strategists cut their year-end S&P 500 estimate from 7,500 to 7,200, citing the Strait of Hormuz shutdown as a threat to both corporate earnings and GDP growth. The note landed on Friday, amplifying the session's losses. The gap between the two banks reflects the core uncertainty every investor is navigating right now: how long does this conflict last?
Surging oil prices driven by the closure of the Strait of Hormuz threaten to push inflation higher, reduce the probability of Federal Reserve rate cuts, and raise the risk of an economic slowdown — or worse, a recession. At $112 and rising, Brent crude is already forcing those calculations.
THE FED: HOLDING AND STUCK
The Federal Reserve held rates steady at 3.5–3.75% on March 18 — a decision markets priced at 99% certainty going into the meeting. But the hold is itself becoming a constraint. Rate-cut expectations have been pushed back to September 2026 at the earliest, a shift of roughly two quarters from where consensus sat at the start of the year.
The problem is structural: oil-driven inflation is exactly the kind the Fed cannot fight with rate cuts. Cutting into an oil shock risks fuelling price pressures further; holding into a slowing economy risks tipping growth into contraction. February CPI came in at 2.4% year-over-year — a manageable number. But March CPI, which will capture the full first month of oil above $100, is the reading analysts warn may be harder for markets to absorb.
If Brent holds above $100 through April and energy costs feed visibly into the March inflation print, the Fed could find itself in a classic stagflation bind: rising prices and slowing growth at the same time. That is the scenario Goldman is trying to argue away. It is also the scenario the JPMorgan target cut is beginning to price in.
SECTOR WINNERS AND LOSERS
Not all of Wall Street is in the red. Defense contractors have been a standout: Northrop Grumman has surged more than 8% year-to-date, with the broader defense sector climbing as demand for military hardware follows the conflict. Energy majors — Exxon, Chevron, ConocoPhillips — jumped on the first day of strikes and have remained elevated. Energy ETFs are the only major sector in positive territory for the month.
The worst pain has landed on travel and tech. United Airlines fell more than 6% on the war's first trading day. American and Delta each dropped over 5%. Software stocks — tracked by the iShares Tech-Software ETF (IGV) — are down more than 21% year-to-date and more than 29% from their recent high. Nvidia attempted a rally ahead of its GTC 2026 developer conference but could not hold gains against the macro headwind.
Morgan Stanley's equity strategists have identified Walmart (defensive consumer, pricing power), Delta Air Lines (recovery trade), and Northrop Grumman (direct war beneficiary) as their preferred names for this environment. The common thread is cash-rich companies with either pricing power or direct exposure to the conflict's economic winners.
HAS THE MARKET PRICED IN A PROLONGED WAR?
The honest answer is probably not. Markets have historically underpriced conflict duration. Three weeks in, the S&P 500 is down roughly 5% from its pre-war level of 6,881 — a decline that reflects an oil shock, not a sustained war premium. The 2022 Russia-Ukraine selloff stabilised relatively quickly. But Iran's control over the Strait of Hormuz presents a structurally different risk: a corridor that carries 20% of global oil supply does not reopen by diplomatic tweet.
The base case — de-escalation in April, Hormuz gradually reopening, Brent falling back toward the $70s by Q4, and the S&P recovering above 7,000 by year-end — is Goldman's preferred scenario and still the consensus. The bear case — a prolonged conflict through summer, oil above $150, the Fed paralysed between inflation and growth, and the S&P finding its next real floor somewhere in the 6,000–6,200 zone — is the scenario the JPMorgan cut has begun to put a number on.
Right now, the 200-day moving average is telling you one thing clearly: the market does not yet know which world it is in.