Amkor, Teradyne, and Kulicke and Soffa Shares Are Falling, What You Need To Know
CNBC reports chip stocks fell after the 30-year U.S. Treasury yield hit a 19-year high, oil stayed elevated, and a U.S.-Iran deal window closed. Deutsche Bank said investors priced longer Strait of Hormuz disruption and higher oil. Shares of AMKR (-11.8%), TER (-10.5%), and KLIC (-11.7%) dropped.
How this was made

The 30-second read
Why it matters
The newest concrete facts are the reported macro drivers (rates and oil) and the sector-level mechanism that higher yields compress chip valuations and raise financing costs. The article does not provide new company-specific fundamentals for AMKR, TER, or KLIC beyond their reported morning declines.
Market read
This is a macro-driven semiconductor tape read-through: higher yields and oil expectations are presented as the mechanism behind the morning declines in AMKR, TER, and KLIC.
What to watch
The text also cites AI demand signals (Anthropic revenue ramp) and memory supply policy, which could partially offset macro pressure for parts of the semiconductor complex.
Background
The selloff is linked to a closed window for a U.S.-Iran deal, with investors pricing longer Strait of Hormuz closure and higher oil, alongside a 19-year high in the 30-year Treasury yield.
Ticker impact
Amkor shares fell 11.8% as higher Treasury yields and elevated oil reduced chip valuation and financing assumptions.
Choppy to lower in the session following the macro shock; follow-through depends on rates/oil and any company-specific catalysts.
The article attributes the move to a macro window closing on a U.S.-Iran deal, pushing yields higher, which typically compresses semiconductor multiples and raises capex financing costs.
Teradyne dropped 10.5% alongside the same macro-driven risk-off move hitting chip stocks broadly.
Further weakness possible if yields remain elevated; mean reversion possible given the large intraday drop.
No Teradyne-specific news is disclosed; the move is explained by higher yields and oil tied to geopolitical deal uncertainty.
Kulicke and Soffa fell 11.7% in the morning session as higher yields and oil weighed on semiconductor sentiment.
Near-term downside risk until rates stabilize; magnitude suggests sensitivity to discount-rate changes.
The article frames the selloff as a sector-wide repricing from higher discount rates and financing costs, not a KLIC-specific catalyst.
Market effects
Higher long-end yields and oil costs are described as a double hit to chip stocks via discount rates and financing costs for data-center buildouts.
Primarily U.S.-rate and U.S.-geopolitical headlines driving a broad semiconductor risk repricing.
Strait of Hormuz deal uncertainty and higher oil feed into global cost of capital and risk appetite for cyclical tech hardware.
Counterpoint
The article argues big drops can create buying opportunities in high-quality names, implying potential mean reversion if yields stop rising.
Key entities
- companyAmkor
Semiconductor manufacturing company whose shares fell 11.8% in the morning session.
- companyTeradyne
Semiconductor/automation company whose shares fell 10.5% in the morning session.
- companyKulicke and Soffa
Semiconductor equipment company whose shares fell 11.7% in the morning session.
- macroU.S. 30-year Treasury yield
Hit a 19-year high, cited as a key driver of the risk-off move.
- geopoliticsU.S.-Iran deal
Window closed without breakthrough, cited as extending higher oil expectations.



