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Amid the AI trade and ongoing geopolitical tensions, several US-listed stocks have come under pressure in 2026. Here are the top 10 stocks with market capitalisations above $5 billion that have fallen between 49% and 66% year to date, according to Vested Finance data.
AP
The Trade Desk has emerged as the biggest loser on this list, with shares plunging 65.75% in 2026, from $37.96 at the end of last year to $13.00. The digital advertising technology company now has a market capitalisation of $6.1 billion.
ETMarkets.com
3/11
Flutter Entertainment (FLUT)
Flutter Entertainment has fallen 62.76% in 2026, with shares plunging from $215.04 at the end of last year to $80.09. The global sports betting and gaming company now has a market capitalisation of $13.9 billion.
ETMarkets.com
Stellantis has shed 62.72% in 2026, with shares sliding from $10.89 at the end of last year to $4.06. The automaker, which owns brands such as Jeep, Fiat and Peugeot, now has a market capitalisation of $10.6 billion.
Reuters
AppLovin has plunged 61.38% in 2026, with shares tumbling from $673.82 at the end of last year to $260.25. The advertising technology company still commands a market capitalisation of $87.1 billion.
ETMarkets.com
6/11
Lululemon Athletica (LULU)
Lululemon Athletica has declined 52.36% in 2026, with shares falling from $207.81 at the end of last year to $99.01. The premium athletic apparel company now has a market capitalisation of $11 billion.
Reuters
7/11
Boston Scientific (BSX)
Boston Scientific has lost 52.08% in 2026, with shares dropping from $95.35 at the end of last year to $45.69. The medical device maker now has a market capitalisation of $66.2 billion.
Reuters
Fair Isaac has plunged 51.77% in 2026, with shares tumbling from $1,690.62 at the end of last year to $815.31. The company behind the widely used FICO credit scores now has a market capitalisation of $17.6 billion.
ETMarkets.com
Zillow Group has shed 51.66% in 2026, with shares falling from $68.22 at the end of last year to $32.98. The online real estate marketplace now has a market capitalisation of $7.5 billion.
ETMarkets.com
CoStar Group has declined 49.55% in 2026, with shares sliding from $67.24 at the end of last year to $33.92. The real estate information company now has a market capitalisation of $13.7 billion.
ETMarkets.com
11/11
AeroVironment (AVAV)
AeroVironment has fallen 49.05% in 2026, with shares dropping from $241.89 at the end of last year to $123.25. The defence technology company now has a market capitalisation of $6.3 billion.
Disclosure: This article has been written by Kumar Gaurav, who is not a Sebi-registered Research Analyst or an Investment Adviser. Gaurav and their ‘relative(s)’ (as defined under Section 2(77) of the Companies Act, 2013) do not hold any financial interest in the companies mentioned in this article as of the date of publication. The views/recommendations mentioned in this article, wherever applicable, are those of the respective Sebi-registered Research Analyst/brokerage and have been reproduced/reported with due attribution. They should not be construed as the views or recommendations of The Economic Times Digital or the journalist. Readers are advised to consider the original research report and make their investment decisions based on their own assessment. Brokerage disclaimers here
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