Even as market clouds clear, AI investment anxiety still gnaws: Mike Dolan
QQQ•ECB and Norway fund flag concentration risks
Researchers at the European Central Bank on Monday posted their rather ominous conclusions on how all this may end, saying the timing and extent of a stock reversal were inherently "unknowable" in advance but that a correction was coming regardless.
The ECB blog noted that the financial-stability concerns were not confined to America, as U.S. megacaps are widely held by European households, insurers and pension funds. It said a correction was an inevitable feature of such technological revolutions and investment booms, while exposure was amplified by the concentration in giant market valuations and index tracking. All involved needed to be prepared.
"Historical experience suggests that technological revolutions carry risks of a boom-bust cycle in asset prices, and this risk does not depend on today’s valuations being rational or irrational," they wrote, metaphorically fastening their safety belts.
The sort of over-concentration the ECB warned about was amply illustrated last week by the head of Norway's $2.3 trillion sovereign fund, who bemoaned the risks attached to just 10 companies representing some 20% of its overall value.




