KLAC vs ADI — Stock Comparison
Side-by-side on AltIndex’s AI Score and alternative-data signals — Reddit mentions, web traffic, hiring, sentiment — that move before price catches up.
Updated September 5, 2026
Verdict
KLAC and ADI are both leaders in Semiconductor. Over the past 12 months, KLAC has gained +96.1% while ADI has gained +42.7% in market cap. AltIndex’s AI Score gives KLAC the edge (74 vs 68) based on the 8 alternative-data signals below — signals that often move before price.
Price change (12 months)
Cumulative percentage change from 12 months ago, normalized to 0% at the start of the window.
KLAC leads with +96.1% growth in price change (12 months), vs ADI at +42.7%.
Reddit mentions
Monthly average of daily mention volume across the most popular stock subreddits. Retail attention surges often precede price moves.
KLAC posted +1,462.5% in reddit mentions over the window — ADI trailed at +525.0%.
Sentiment
Monthly average of the Stocktwits bull/bear sentiment ratio. Captures retail-trader mood shifts smoothed over each month.
KLAC outpaced ADI in sentiment (+0.1% vs +0.0%).
Web traffic
Estimated monthly visits to each company’s website. A forward-looking proxy for consumer demand.
Both pulled back in web traffic: KLAC at -2.1%, ADI worse at -11.4%.
Job postings
Monthly average of open job postings on LinkedIn. Hiring shifts before management acknowledges demand on earnings calls.
KLAC outpaced ADI in job postings (+78.2% vs +21.2%).
Headcount
Monthly average LinkedIn employee count. A slower-moving confirmation of corporate health.
Both ticked up in headcount: ADI at +8.6%, KLAC at +8.5%.
Instagram followers
Monthly average Instagram follower count. A brand-strength proxy for consumer-facing companies.
ADI gained +15.5% in instagram followers over the window. The other ticker doesn’t have enough data for a head-to-head read.
Employee business outlook
Monthly average business-outlook score. Employees feel demand shifts before management acknowledges them.
ADI grew +6.0% in employee business outlook while KLAC moved -3.7% — a divergent signal.
See 5 years of KLAC vs ADI signals & get impactful real-time alerts
The charts above cover the last 12 months. Sign up to see 5+ years of KLAC vs ADI alt-data history — and get real-time stock alerts the moment Reddit chatter spikes, web traffic breaks out, hiring accelerates or sentiment flips on either ticker. Be the first to know when one of these signals moves — before the price catches up.
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FAQ: KLAC vs ADI stock comparison
AltIndex’s AI Score gives KLAC a 74 vs ADI’s 68. That score blends 10,000+ alternative-data signals — Reddit mentions, web traffic, hiring activity, employee outlook, sentiment — with traditional financials. Higher isn’t a guarantee but it does flag which name our model sees as the stronger setup today.
AltIndex isn’t financial advice; the answer depends on your horizon, sector view and risk tolerance. The comparison above shows which name scores higher on alt-data signals; for long-term positions also weigh fundamentals, valuation, sector rotation and portfolio concentration. Many investors track both via our alert system.
Look at the price-change chart above for the 12-month track record and the Reddit mentions / web traffic charts as forward-looking demand proxies. Stocks with rising attention and traffic ahead of price typically have stronger growth runways. AltIndex’s AI Score weighs these forward signals, so the higher score (KLAC at 74 vs ADI at 68) is our model’s composite read on near-term growth setup.
Dividend strength is a fundamentals-side question rather than an alt-data signal. The signals above (Reddit mentions, hiring, web traffic) focus on demand and momentum. For dividend yield, payout ratio and dividend growth, check each name’s individual page: KLAC profile and ADI profile.
Retirement holdings usually favor stability, dividends and lower drawdown risk over momentum. Neither AI Score is a substitute for that thesis — treat the comparison above as one input among many. Consider sector concentration (you may not want two of the same), correlation with the rest of your portfolio, and dividend track records on each ticker’s profile page.
Reddit mentions (retail attention), web traffic (consumer demand), hiring activity (corporate confidence), employee business outlook (Glassdoor), Stocktwits sentiment, social-media follower growth. Each moves before traditional financials confirm a trend — which is why this comparison adds context price-only tools miss.
Daily. AI Score, alt-data signals, and price marks all refresh each morning so the comparison reflects yesterday’s close + the latest disclosed alt-data scrapes.
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