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ARM vs ACHR — which is the better buy? — what our data shows

⚡ TradesZ research ·Updated July 23, 2026 ·~2 min read ·Grounded in SEC data

Both ARM and ACHR are riding big futuristic themes — one in AI chips, one in flying taxis — but the data we have on each tells a pretty different story. Let's break down what we actually know about them.

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What our data shows

Arm Holdings plc American Depositary Shares logo ARM Arm Holdings plc American Depositary Shares 🟢Bullish lean
Over 831 big professional investment funds — including famous names like Berkshire Hathaway — have reported owning this stock, which signals serious institutional confidence in its role powering AI technology.
🐋 13F · 831AI compute
Archer Aviation Inc. logo ACHR Archer Aviation Inc. ⚪Neutral
Our data links this company to the space and futuristic transport theme, but we don't see the same depth of major fund backing that ARM has, making it a thinner data picture for now.
Space

The takeaway

⚪Neutral

ARM comes with a lot more heavyweight investor backing showing up in our data, while ACHR is more of a pure bet on an exciting but early-stage idea — so it really comes down to how much uncertainty you're comfortable with.

But watch out
Smart-money signals lag the market (13F filings ~45 days) and never guarantee direction — always check the latest price and news yourself.
Sources → Smart-money hub
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Informational research, not personalized investment advice.