

ARCH CAPITAL
8.3K posts

@top_sach
Investing in world changing companies and founders.




Jane Street just filed a monster position in $IREN. One of the sharpest trading firms on the planet now holds: • 15.8M Calls → ~$543M • 12M Puts • 2.85M Common shares Net “heavily bullish” bias with calls dwarfing the rest. Total notional exposure over $1 Billion. This is the same smart money heavily in CoreWeave… but they’re clearly rotating into listed operators with real power + execution like $IREN as NVIDIA’s AI Factory buildout accelerates. I’m already positioned and added on the recent dip. These are exactly the asymmetric institutional flows that have moved my portfolio the most on this £0 → £450k journey. What do you make of this 13F? Bullish or just hedging?



🇺🇸 Dozens of Waymo self-driving robotaxis flooded a quiet Atlanta neighborhood circling a cul-de-sac for hours with no passengers. Neighbors in Buckhead are fed up with the traffic jam and noise. They put toys in the road to stop them 😂










New in Claude Code: agent view. One list of all your sessions, available today as a research preview.