This weekly recap covers 16 to 22 March 2026. The previous week ended with the S&P 500 at its lowest close of 2026, Brent just above $100, and three consecutive weekly losses. This week was supposed to bring some clarity: the Fed meeting on Wednesday, Nvidia's GTC conference kicking off Monday, and maybe the first signs of de-escalation from Tehran.
None of it resolved anything. By Friday the S&P had logged its fourth straight weekly loss, closing at 6,506.48, its worst close since September. Brent finished at $112.19. The 10-year Treasury yield ended at 4.39%, its highest close since last July. The week that started with relief ended with Kuwait refineries on fire, Iraq's entire foreign-operated oil sector under force majeure, and the Fed chair telling a press conference that he did not know how to model the impact of an ongoing war.
Quick highlights
- Monday relief, quickly reversed: Treasury Secretary Bessent told CNBC that Iranian tankers were being allowed through the Strait. Oil fell nearly $4, equities opened up more than 1%. By Wednesday it was all gone.
- South Pars struck: On Wednesday, U.S. and Israeli forces hit Iran's South Pars gas field, the world's largest. Brent surged back above $110 immediately.
- Fed holds, dot plot unchanged: FOMC voted 11-1 to keep rates at 3.5%-3.75%. One cut projected for 2026, same as December. Powell: "We just don't know" how Iran plays out.
- Brent hits $119 intraday: Thursday saw the week's most volatile session. Qatar confirmed 17% LNG capacity loss from strikes on Ras Laffan. Netanyahu said the war "may end sooner than people think." Brent pulled back to close at $108.65.
- Iraq declares force majeure: Baghdad declared force majeure on all foreign-operated oilfields on Friday. Kuwait refineries hit by drones the same morning.
- S&P breaks 200-day average: Thursday's close below the 200-day moving average ended a 214-session streak above it. The first breach since May 2025.
- Nvidia GTC: Jensen Huang projected $1 trillion in revenue from Blackwell and Rubin chips through 2027. The stock finished the week down 3.17%.
- Meta layoff report: Reuters reported Meta is planning cuts of 20% of its workforce, roughly 16,000 people. Meta called it speculative. The stock went up 3% on Monday anyway.
- Atlassian cuts 10%: 1,600 jobs cut, citing AI reallocation. The same week as the Meta report, a pattern that is becoming hard to ignore.
- Quadruple witching Friday: The quarterly simultaneous expiry of four derivatives contract types amplified already ugly intraday swings on the worst possible day for it.
Numbers snapshot (16–22 Mar 2026)
- Mar 16 — S&P 500: 6,699.38 (+1.01%). Dow: 46,946.41 (+0.83%). Nasdaq: 22,374.18 (+1.22%). Oil falls on Bessent comments, WTI near $94.88.
- Mar 16 — Nvidia GTC opens. Jensen Huang projects $1T revenue from Blackwell and Rubin chips through 2027.
- Mar 16 — Meta: Reuters reports 20% workforce cut in planning. Meta denies. Shares +3%.
- Mar 17 — Atlassian: cuts 10% of workforce (1,600 people), citing AI reallocation of resources.
- Mar 18 — FOMC: holds at 3.5%-3.75%, 11-1 vote. SEP: one cut in 2026. Powell says the committee "just don't know" how to model the Iran scenario.
- Mar 18 — South Pars: U.S. and Israeli aircraft strike Iran's South Pars gas field. Iran publishes list of energy retaliation targets including Aramco's Samref refinery and UAE's Al Hosn gas field.
- Mar 18 — Brent: surges above $110 on South Pars news.
- Mar 19 — Brent: touches $119 intraday. Netanyahu says Israel is helping reopen the Strait, war "may end sooner than people think." Brent pulls back to close at $108.65.
- Mar 19 — S&P 500: closes below 200-day moving average for the first time since May 2025.
- Mar 20 — Iraq: force majeure declared on all foreign-operated oilfields.
- Mar 20 — Kuwait: drone strikes hit Mina Al-Ahmadi and Mina Abdullah refineries Friday morning.
- Mar 20 (Friday close) — S&P 500: 6,506.48 (-1.51%). Nasdaq: 21,647.61 (-2.01%). Dow: 45,577.47 (-0.96%).
- Mar 20 — Weekly: S&P -2%, Dow -2%, Nasdaq -2%. Fourth consecutive losing week.
- Mar 20 — Brent: $112.19. WTI: $98.32. 10-year yield: 4.39%.
- Mar 20 — Citi: raises near-term Brent target to $120, bull case $150. Base case: de-escalation in 4-6 weeks, Brent back to $70-80 by year-end.
1) The week that was supposed to be a pivot
Monday morning looked like it might finally break the losing streak. Bessent told CNBC the U.S. was allowing Iranian oil tankers to transit the Strait, which sent crude down nearly $4 and opened equities sharply higher. Nvidia was kicking off GTC in San Jose. For roughly 36 hours, markets tried to convince themselves the worst was over.
Wednesday ended that. U.S. and Israeli aircraft struck Iran's South Pars gas field, the massive offshore reservoir shared with Qatar that supplies roughly a fifth of global LNG. Striking energy infrastructure rather than military targets was a meaningful escalation. Iran responded by publishing a list of specific facilities it planned to hit: Aramco's Samref refinery, UAE's Al Hosn gas field, and others. Brent, which had pulled back toward $94 on Monday, was above $110 again by Wednesday evening.
Thursday was the most volatile session of the week. Brent touched $119 intraday. Qatar confirmed that Iranian missile strikes had damaged Ras Laffan industrial city and taken out 17% of its LNG export capacity. Then Netanyahu said in a statement that Iran had lost the ability to enrich uranium and produce ballistic missiles, that Israel was helping the U.S. reopen the Strait, and that the war "may end sooner than people think." Brent pulled back $10 from its intraday high and closed at $108.65. The session encapsulated the entire dynamic of this conflict: violent escalation, then a leadership statement, then a partial reversal, with nobody sure which direction is real.
Friday confirmed the escalation was real. Iraq declared force majeure on all foreign-operated oilfields. Drones hit two Kuwaiti refineries. The week that started with Bessent suggesting the Strait was reopening ended with Gulf energy infrastructure under direct attack from multiple directions.
2) The Fed: one cut, no conviction, and a subpoena
The FOMC voted 11-1 on Wednesday to hold rates at 3.5%-3.75%. Stephen Miran dissented in favour of a cut. The dot plot showed a median of one cut in 2026, identical to December. Seven of nineteen members now expect no cuts this year, up from six in December. The SEP revised GDP slightly higher to 2.4% but raised the core PCE inflation forecast to 2.7%.
None of that was the story. What traders focused on was Powell's press conference tone. When asked directly how the committee was thinking about the Iran conflict, he said: "If we were ever going to skip an SEP, this would be a good one because we just don't know." That is an unusual thing for a Fed chair to say in public. It read as an admission that the central bank's projections are essentially decorative at this point, produced because they have to be produced, not because anyone believes them.
There is also a political layer that is becoming harder to ignore. Trump has been publicly pushing for rate cuts for months. His Justice Department, through U.S. Attorney Jeanine Pirro, subpoenaed Powell over the Fed's headquarters renovation costs. A judge quashed the subpoenas, but Pirro said she would appeal. Powell, whose term as chair ends in May, said he would not resign before the investigation is concluded and would serve as chair pro tem if Kevin Warsh, Trump's nominee, is not confirmed in time. It is a genuinely strange situation for a central bank in the middle of an energy shock.
The bond market's reaction was the most important signal. The 10-year ended Friday at 4.39%, its highest close since July. Yields rising alongside falling equities is the same configuration that appeared in 2022 after Russia's Ukraine invasion. That period was brutal for balanced portfolios. It is present again now, and the Fed does not have an obvious exit.
3) Equities: fourth week lower, 200-day breaks
The technical deterioration was sharp. Thursday's close below the S&P 500's 200-day moving average ended a 214-session streak above it, the longest such streak since before the 2022 bear market. The 200-day is not a magic number, but it is one that systematic and quant funds use as an allocation trigger. A close below it, after four consecutive down weeks, changes positioning in ways that compound fundamental selling.
Friday made it worse. The S&P fell 1.51% to 6,506.48 amid quadruple witching, the simultaneous quarterly expiry of stock options, index options, stock futures, and index futures. These events reliably amplify intraday volatility. In a week where sentiment was already fragile, the combination produced some of the ugliest intraday moves of the year. The VIX closed at 26.78.
Sector rotation is telling a clear story. Energy is the only sector with meaningful positive returns since the conflict began. Tech, consumer discretionary, and financials have taken the worst of it. Nvidia finished the week down 3.17% despite the GTC headlines. Nike hit a 52-week low near $52. The Dow Transports logged one of their worst months in recent memory. That index prices the actual cost of moving goods. When airlines, freight logistics, and shipping companies all sell off together, the market is not just expressing macro fear. It is repricing the cost structure of the economy.
4) Nvidia GTC and AI in a heavy macro week
Nvidia's annual GTC conference ran through most of the week in San Jose. Jensen Huang's keynote on Monday projected $1 trillion in revenue from Blackwell and Rubin chips through 2027, doubling a prior estimate from last year. The conference also unveiled NemoClaw agent software and a Groq-based chip system. The room was full. The projections were large. The stock still ended the week down 3.17%.
That performance tells you where investor priorities are right now. The AI infrastructure narrative is intact, and the capex numbers from Microsoft, Google, Meta, and Amazon make that clear. But when oil is at $112 and the S&P is breaking its 200-day average, even genuinely bullish product news cannot hold a stock up. The macro is too loud.
The Meta layoff report came out Saturday and ran through most of the week. Reuters reported that top executives had told senior leaders to plan for cuts of 20% or more of the roughly 79,000-person workforce, which would be around 16,000 people. Meta called it speculative. Investors sent the stock up 3% on Monday anyway. The logic is straightforward: Meta is spending $115-135 billion in capex in 2026, nearly double last year's level, and cutting 16,000 salaries offsets a meaningful fraction of that. Atlassian cut 1,600 people the following day, also citing AI. Amazon cut 16,000 corporate roles in January. Block cut almost half its workforce in February. The pattern is consistent enough that calling it coincidental requires effort.
5) M&A: the one deal worth noting
The broader deal environment has slowed noticeably since the conflict began. Leveraged buyouts need financing, and financing costs have moved materially with yields. Strategic mergers need boards willing to price transformational transactions against an economic outlook that Powell himself admitted nobody can forecast with confidence. Neither condition is particularly friendly right now.
The one significant announcement this week came from Meta, which confirmed a $27 billion infrastructure deal with Nebius Group: $12 billion for dedicated AI compute capacity and $15 billion for supplementary access on Nvidia's next-generation Vera Rubin platform. It is not a traditional acquisition, but the scale of it illustrates how AI capex is reshaping what large corporate transactions look like. When you can lock in $27 billion of compute capacity in a single agreement, you do not need to buy a company.
According to Paul Weiss's monthly M&A tracker, February saw strong megadeal activity in strategic M&A, but sponsor-driven deals were already declining before the Iran shock. That trend has accelerated. The deal market will not recover meaningfully until either yields come down or the macro outlook stabilises, and right now neither is on a clear path.
6) What the week tells you
Three weeks ago this conflict looked like a sharp event-driven repricing that might resolve in days. Two weeks ago it started to look more durable. This week it widened. Energy infrastructure outside Iran is now being struck directly. Qatar lost LNG capacity. Kuwait lost refinery capacity. Iraq's entire foreign-operated oil sector is under force majeure. The question is no longer about the Strait of Hormuz. It is about the stability of Gulf energy infrastructure as a whole.
The one genuine wildcard heading into next week is the Netanyahu signal from Thursday. His statement that Israel is helping reopen the Strait and that the war may end sooner than expected moved Brent $10 lower from its intraday high. If that narrative develops with any real substance, the relief rally could be significant. Citi's base case, de-escalation in four to six weeks with Brent back to $70-80 by year-end, would imply a lot of room for equities to recover from here.
The risk is that this is another version of Trump's "very complete, pretty much" comment from three weeks ago: a statement that markets price briefly before the next escalation erases it. Four straight down weeks, a broken 200-day average, yields at multi-month highs, and a Fed that has essentially admitted it is flying blind. Absent a genuine ceasefire signal, the path of least resistance is lower.
Sources (primary / checkable)
- Federal Reserve, FOMC Statement and SEP, March 18, 2026: federalreserve.gov
- CNBC, Fed rate decision and Powell press conference live coverage (Mar 18, 2026): cnbc.com
- Yahoo Finance / Motley Fool, S&P 500 close March 20, 2026: finance.yahoo.com
- CNBC, Iraq force majeure and Kuwait refinery strikes (Mar 20, 2026): cnbc.com
- Fortune, Brent above $110 on South Pars strike (Mar 18, 2026): fortune.com
- CNBC, Brent $119 and Netanyahu comments (Mar 19, 2026): cnbc.com
- Reuters / CNBC, Meta 20% layoff report (Mar 15-16, 2026): reuters.com
- Sophic Capital, Weekly market summary March 21, 2026: sophiccapital.com
- BlackRock Investment Institute, Weekly commentary March 16, 2026: blackrock.com
- Citi, Oil forecast update March 20, 2026: cnbc.com
- Charles Schwab, Market update March 20, 2026: schwab.com