Cerebras Systems' shares jumped 89% above the initial public offering price in their US market debut, giving the chip designer a valuation of $106.75 billion.
Source: Reuters
BLOODBATH IN SOUTH KOREA.
KOSPI hit a new ATH of 8,000 today and then crashed 8.4% in the same session, wiping ₩509 Trillion ($370 billion) in 6 hours. Samsung, which makes up 42% of the entire index, crashed 8.61% Source: Bull Theory
How does the sp500 perform when the US 10 year yield crosses key levels?
With the long bond over 5% and the 10yr dancing around 4.50%, maybe it is worth to have a look at it again... Kantro had nice look back at the median weekly stock returns versus yields - see chart below. Source: Kantro, RBC
Renaissance Technologies filed their Q4 2025 holdings with the SEC in February.
This is the fund built by Jim Simons, a mathematician who beat Wall Street for 40 years using pure math and zero emotion. Their Medallion Fund averaged 66% annual returns before fees for over 20 years. The best track record in the history of investing. Here's what they were holding at December 31, 2025, and what those positions are worth today. MU – held $859M worth at ~$186/share. Now ~$768. Up 312%. BE – held $22.6M worth at ~$87/share. Now ~$287. Up 230%. AMD – held $267M worth at ~$211/share. Now ~$455. Up 116%. Source: The Assembly
Breadth within sp500 is narrowing
Source: Barclays, RBC
The Roundhill Memory ETF $DRAM is up 98% since launching 5 weeks ago, easily the best perf ETF out of the gate (while also being the fastest growing ETF- at least to $6.5b).
Source: Bloomberg, Eric Balchunas
The only precedent for when the S&P 500 has been at record highs while fewer than 60% of stocks were above both their 50- and 200-day moving averages: December 1998-March 2000.
Source: Bespoke Invest
21Shares lnc. is going live TODAY 12th of May with their Hyperliquid #ETF Ticker $THYP US Fee 30bps.
Source: Bloomberg, Eric Balchunas
