Amazon.com Inc (NASDAQ: AMZN) closed Tuesday April 21 at $249.91, up 0.66 percent on the session, extending the momentum generated by Monday’s announcement that the company will invest up to $25 billion in AI startup Anthropic on top of its prior $8 billion commitment, with Anthropic simultaneously pledging to spend more than $100 billion on Amazon Web Services technologies over the next decade.

The stock traded in a range of $249.10 to $255.09 on the day and moved into overnight trading around $251.70, with the market capitalisation holding above $2.68 trillion heading into what is shaping up as one of the most closely watched Q1 earnings reports of the season, due April 29. Amazon’s custom Trainium chip business has doubled its annualised revenue run-rate to over $20 billion, and the Anthropic deal is being read by Truist Securities and others as confirmation that Trainium is gaining real momentum as an alternative to NVIDIA silicon in AI training workloads. The 52-week range of $178.85 to $258.60 frames a stock that is within a few percent of its all-time high and trading on consensus analyst price targets clustering around $282 to $284.

Palantir Technologies Inc (NASDAQ: PLTR) closed April 21 at approximately $146.96, having traded between $144.00 and $149.87 on the day on volume of around 44.8 million shares — below the 60 million daily average, suggesting the session was not especially eventful for the name despite the broader market’s Iran-related volatility. The stock sits roughly 30 percent below its 52-week high of $207.52 touched earlier in the year, though it has recovered meaningfully from the $89.31 52-week low that marked the war’s worst days for high-multiple growth names.

Palantir’s next earnings report is scheduled for May 4, with Q4 2025 adjusted EPS of $0.25 having beaten the $0.23 consensus, and Q1 2026 EPS is expected around $0.28. The company closed FY2026 with ending ARR of $5.25 billion up 24 percent year on year, and its Maven AI system was reported to have processed 1,000 Iran strike targets during Operation Epic Fury, a military contract story that has given bulls fresh ammunition even as the valuation debate — which Michael Burry reignited with public bearish commentary earlier this month — continues to make the stock a battlefield between two firmly held camps.

Rocket Lab Corporation (NASDAQ: RKLB) closed April 21 around $86.64, recovering from an intraday high of $92.16 and holding above its $86.27 session low as the space and defence sector navigated a day of competing narratives — AI infrastructure enthusiasm on one side, Iran ceasefire uncertainty on the other.

The stock is up approximately 370 percent over the past year from a 52-week low of $18.21, and Roth Capital has a $100 price target on the name after raising it from $90 in mid-April, citing strong launch services momentum and 20 percent annual Electron rocket programme growth. Revenue for the trailing twelve months stands at $601.8 million with a backlog of approximately $1.85 billion, and the company holds a stockholder special meeting on the same day that will draw attention from the retail community. Next earnings are on May 12. Rocket Lab is not yet profitable — net loss for the trailing period is approximately $198 million and the operating margin remains deeply negative — which means the investment thesis rests almost entirely on the revenue growth trajectory, the backlog depth and the longer-term Neutron medium-class rocket development programme that positions the company for a much larger addressable market than Electron alone can serve.

Walmart Inc (NYSE: WMT) closed April 21 at approximately $127.92, up around 1.31 percent on a day when the broader market was modestly lower, continuing the pattern of large-cap defensive consumer staples outperforming during periods of geopolitical anxiety. Walmart’s 52-week range of $90.54 to $134.69 places the stock near the upper end of its annual band, and the retailer has benefited throughout the Iran war period from its positioning as one of the clearest beneficiaries of elevated oil prices driving consumer interest in its value proposition over discretionary alternatives.

The company is on an active store remodel cycle, with over 650 locations being upgraded across the US in 2026 and approximately 20 new stores opening in 2026 to early 2027. Upcoming Q1 2026 earnings on May 21 are expected to show approximately 6.56 percent year-on-year EPS growth. One of the more interesting structural stories around Walmart is its ongoing contest with Amazon for grocery and everyday essentials market share — analysts at multiple firms have flagged Walmart’s move to use back-room store shelving as staging for e-commerce fulfilment as a meaningful logistics development that could narrow Amazon’s speed-to-door advantage in that segment.

BigBear.ai Holdings Inc (NYSE: BBAI) closed April 21 at approximately $3.88 to $3.89, having traded between $3.80 and $4.07 during the session on volume of around 20 million shares versus a daily average of 27.7 million.

The stock has been trying to rebuild above the $3.75 prior close after a difficult stretch that saw it fall from a 52-week high of $9.39 down to a low of $2.36 earlier in 2026 — a decline of roughly 75 percent from peak that reflects both revenue challenges and a broader repricing of small-cap AI names that could not sustain the valuation multiples the market assigned them during the initial AI hype wave. BigBear.ai reported a Q4 2025 EPS of negative $0.01, which beat the negative $0.07 estimate and improved dramatically from the negative $0.55 EPS posted in Q4 2024, suggesting the company’s cost restructuring is producing results even as full-year 2025 revenue fell 19 percent to $127.67 million.

The next earnings report is May 12 — the same date as Rocket Lab — and H.C. Wainwright has a $6 price target on the stock, implying approximately 55 percent upside from current levels, while the company’s focus on national security AI, defence contracting and its Ask Sage generative AI platform positions it to benefit from the accelerating US defence AI spending cycle that Palantir’s own contract wins have made more visible to the broader market.