Cathie Wood's Ark ETF sees 91% of holdings tumble in tech rout

Cathie Wood’s Ark Innovation ETF plunged to a six-month low, with all but five of its 58 holdings retreating in a broad tech selloff.

The ARKK exchange-traded fund that makes concentrated bets on tech companies aiming to disrupt industries fell 5.2% Monday, double the loss in the Nasdaq 100 Index. It’s now down more than 30% from its February peak.

Hardest hit in the portfolio listed in the fund’s May 7 holdings disclosure were two biotech stocks. Twist Bioscience Corp. was the fund’s biggest laggard, plunging more than 17% on Monday, its worst one-day performance since Feb. 5. NanoString Technologies Inc. sank