What an index, a sector or an asset class did, and why. The default for session coverage.
An easing oil slide reduced inflation worries even as crude itself ticked higher on the same Iran diplomacy story.
Gold gained as a slowdown in oil's decline eased inflation concerns, while oil itself edged up on hopes for U.S.-Iran talks and steady Saudi supply flows.
Tesla ran into resistance near $377-$381 and Alphabet's Class C shares tested $354 in the September 21 session.
The Nasdaq 100's relative strength index reached 81 at 30,788, a level traders generally treat as overbought, while the Dow Jones Industrial Average sat unmoved at 52,500.
Bitcoin traded toward $108,000 and Ethereum broke above $2,672 as falling bond yields lifted risk assets, with Strategy adding $75 million more bitcoin to its holdings.
Bitcoin pushed toward the $108,000 level and Ethereum broke above $2,672 in the September 21 session as easing Treasury yields boosted both crypto and tech stocks, while Strategy bought another $75 million of bitcoin.
A wave of short liquidations pushed bitcoin past $84,000 and then above $85,000, with the token now up 44% for the third quarter.
Bitcoin climbed to an eight-month high above $85,000 after roughly $300 million in short positions were liquidated, extending a third-quarter gain of 44%.
Sterling slipped against the dollar as oil prices and rate-hike bets combined to support the greenback.
The dollar gained against sterling as traders increased bets on further Federal Reserve tightening, according to Investing.com.
The STOXX 600 and FTSE 100 both gained as easing oil prices, tied partly to Iran diplomacy hopes, calmed investor nerves.
Europe's STOXX 600 climbed on a tech-sector rally while a retreat in oil prices, helped by hopes for Iran diplomacy, reduced pressure on the broader market, and London's FTSE 100 rose on the same oil relief.
Investors positioned for the meeting between the two leaders after months of tariff conflict gave way to a trade truce.
Asian equities climbed with technology shares leading gains as traders awaited the Trump-Xi summit, while the dollar ticked higher and Asia FX stayed muted.
Crude fell even as Houthi rebels claimed strikes near the Saudi capital, with traders instead focused on diplomatic signals from Washington and Beijing.
Oil extended its decline in the September 20 session on hopes for U.S.-Iran diplomacy, even as flames and smoke were reported near Riyadh's airport following claimed Houthi attacks.
Casey's General Stores, American Eagle and Chewy each posted results that topped some expectations, yet all three saw shares fall.
Casey's General Stores beat profit estimates but a soft sales number sent its stock tumbling, while American Eagle fell even after holding its forecast steady and Chewy dropped despite beating on profit.
CrowdStrike, Palo Alto Networks and SentinelOne gained through the week even as chipmakers slipped on fears that AI infrastructure spending is peaking.
CrowdStrike, Palo Alto Networks and SentinelOne rallied this week while AI chip stocks fell, as investors grew more worried about AI-powered cyberthreats and less certain about further chip demand growth.
Memory chipmaker's 44% net margin dwarfs AMD's profitability, but investors are paying up for AMD's growth story anyway.
SK Hynix posts a 44% net margin and trades at 5.8 times forward earnings, versus a 63 times multiple for AMD despite AMD's stronger growth profile, according to a same-day comparison of the two AI supply-chain stocks.
The bank lowered its year-end target to 7,700 just as separate data show valuations at levels last seen 26 years ago.
Wells Fargo cut its S&P 500 target to 7,700 and warned of 5%-10% near-term downside, adding to signs that stretched valuations are drawing scrutiny.
Investors are now weighing how much further the Federal Reserve can tighten before it chokes off growth, with long-term borrowing costs already near multi-year highs.
The Federal Reserve raised its policy rate, and commentary from the desk argues the move may not even bring inflation down while pushing borrowing costs higher across the economy.
Bond yields hit a level last seen only once in nearly 20 years, days after the Federal Reserve raised rates for the first time in more than three years.
The 10-year Treasury yield crossed 5% for only the second time in almost two decades, coinciding with a Federal Reserve rate hike and an inflation reading of 3.4%.
The People's Bank of China left its benchmark loan prime rates unchanged in September, extending a freeze that has now run over a year.
China's central bank kept benchmark lending rates unchanged for the 16th consecutive month in September, citing narrowing room for further monetary easing.
ARK trimmed two AI software winners while adding $3.35 million to a flying-taxi startup and defending Tesla and bitcoin against bearish calls.
ARK sold its Palantir and AMD positions and put $3.35 million into Archer Aviation, while Wood publicly pushed back on a 'dead cat' bitcoin warning and kept Ark's core Tesla stake despite Tesla trailing every other Magnificent Seven stock in 2026.
Bank of America issued a warning tied to the Federal Reserve's latest rate increase, even as commentary turned to its effect on consumer shopping.
Bank of America issued a warning about the Federal Reserve's rate-hike path, coming alongside separate reporting on how the increase could affect holiday shopping.
The purchase at $28.27 a share came through three corporations and pushed the director's total holding to 3.2 million shares.
Star Bulk Carriers director Pappas bought 74,400 shares for $2.1 million at $28.27 each, bringing her total stake to roughly 3.2 million shares worth nearly $99 million.
InvestingPro's fair-value tool flagged two opposite outcomes within the same reporting cycle, underscoring how differently the same valuation method can play out.
InvestingPro's Fair Value tool is being credited with correctly flagging GeoPark for a 67% gain while separately predicting a 40% decline for Sterling Infrastructure.
Commentary points to select cryptocurrencies recovering after the Federal Reserve's rate move and a stumble in the CLARITY Act process.
Analysts argue several leading cryptocurrencies have absorbed both a Fed rate hike and a setback in the CLARITY Act regulatory push without lasting damage.