Investors looking for the biggest casualties amongst S&P/ASX 200 Index (ASX: XJO) shares in 2026 don't have to look far. WiseTech Global Ltd (ASX: WTC), Seek Ltd (ASX: SEK), and Xero Ltd (ASX: XRO) have all been smashed this year, down 49% or more and hovering near their 52-week lows.
Rising interest rates have punished growth stocks. Now fears that AI could gut traditional software moats are piling on.
But a collapsing share price doesn't automatically make a share cheap. Here's what's actually happening beneath the surface of each ASX 200 share.
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WiseTech is facing a slowdown in growth
WiseTech has delivered one of Australia's most spectacular tech share price reversals. The stock closed at $32.34 on Wednesday, down roughly 53% for the year.
The underlying business is still profitable, but investors are grappling with a sharp slowdown in expected growth – FY27 revenue growth is forecast at just 6% to 10%. That's forced the market to strip away the hefty premium valuation this global logistics software company used to command.
Still, a genuine value argument is emerging. Recent analysis puts WiseTech on a considerably lower earnings multiple than it has carried historically, and several brokers remain constructive on the long-term opportunity.
The bull case rests on a simple idea: the market may be underestimating just how durable and profitable CargoWise really is. Morgans currently has a price target of $62.50, almost a 100% rise from current levels.
Fewer jobs, less demand for Seek
Seek has also copped a serious rerating, down about 49% year to date to $11.91.
Unlike WiseTech, this ASX 200 share's fortunes are tied directly to the health of the employment market. When businesses hire fewer people, they typically advertise fewer jobs. As a result, that means less demand for Seek's core service.
The company is still generating solid revenue and earnings, but investors need real evidence that hiring conditions can support renewed growth before they're willing to pay up again.
Bell Potter recently retained its hold rating on the stock, trimming its price target to $13 from $13.80. That implies roughly 9% upside from here.
Xero: Major valuation reset
Xero has experienced a dramatic fall, too. The $10 billion ASX 200 share now sits at $58.20, 49% lower than where it sat 12 months ago.
Yet the business itself keeps growing rapidly. FY26 operating revenue rose 31% to NZ$2.75 billion, and Xero finished the year with 4.92 million customers. Management is targeting another roughly 30% increase in revenue for FY27.
That disconnect is what makes Xero so interesting. The growth engine hasn't slowed, but investors have dramatically slashed what they're willing to pay for it.
Broker targets currently average around $111.25 a share. Getting there would mean a 91% rise from today's price.
Foolish takeaway
The biggest ASX 200 fallers can be tempting hunting grounds, but investors shouldn't confuse 'down a lot' with 'undervalued'. WiseTech faces genuinely slower growth expectations, Seek remains hostage to the jobs market, and Xero is working through a major valuation reset despite still-strong underlying growth.
For investors willing to look past the share price chart, the real question isn't which stock has fallen the furthest — it's whether today's lowered expectations are already conservative enough, or whether there's still further to fall.
