PDF Solutions, Inc. (PDFS) Stock Price & Analysis

PDF Solutions, Inc. (PDFS) closed at USD 45.49 on Wednesday, October 28, 2026, up 2.85% on the day. The US market is currently closed; this is not a live price.

The prior close was USD 44.23; the Oct 28, 2026 session ranged USD 44.3–46.09 on volume of 624,845 shares. Market capitalization is $1.92B, with a 52-week range of USD 23.55–71.69 (NMS). Source: Nexqual, retrieved October 29, 2026 at 06:30 UTC.

Also available as compact Markdown for AI agents: nexqual.com/PDFS.md

Key facts (PDFS)

• Last four reported quarters (through Jun 30, 2026): revenue $241M, net income $10.3M (4.3% margin), free cash flow -$1.8M (SEC filings).
• Valuation: P/E 186.4x (avg 331.8x at the last 2 fiscal year-ends).
• Insider open-market sales, last ~7 months: 2 Form 4 filings, $228K; 2 not under a Rule 10b5-1 plan ($228K); 0 by opportunistic insiders, 0 by routine insiders (three-year test, Cohen, Malloy & Pomorski 2012).
• Analysts: Buy (mean 1.88 on a 1–5 scale) (8 analysts), mean target USD 60.75 (range 50–68).
• Total return with dividends: 1Y +55.7% vs S&P 500 +13.6%; 5Y +93.3% vs S&P 500 +79.8%.
• Next earnings: 2026-11-05, EPS estimate USD 0.33, revenue estimate $67.5M.

Financials (SEC 10-K; TTM = last four 10-Q/10-K quarters) (PDFS)

Fiscal years end Dec. EPS is split-adjusted.

Valuation (price ÷ last four quarters, through Jun 30, 2026) (PDFS)

P/E 186.4x · P/S 8.0x · P/B 5.2x · FCF yield -0.09% · Earnings yield 0.54%

P/E at fiscal year-ends: Dec 2024 260.6x, Dec 2023 403.0x.

Insider sales (SEC Form 4, open-market, last ~7 months) (PDFS)

0 of 2 under a Rule 10b5-1 trading plan (scheduled in advance). Unplanned sales were timed by the insider.

% of holdings sold = shares sold ÷ (shares sold + all holdings the insider reported on that Form 4, direct and through trusts).

Insider type follows Cohen, Malloy & Pomorski (Journal of Finance, 2012). An insider who traded the stock in the same calendar month in each of the past three years is a routine trader; one who traded in each of those years without such a pattern is an opportunistic trader. In their study, trades by opportunistic insiders predicted future returns and trades by routine insiders did not. Counts open-market purchases and sales only (SEC Form 4 codes P and S) by that insider in that company. Not investment advice.

Analysts (PDFS)

Consensus Buy (mean 1.88 on a 1–5 scale), 8 analysts; mean target USD 60.75 (low 50, high 68).

Rating changes, last 120 days:

Total return (dividends reinvested) (PDFS)

PDFS earnings history and stock reaction

EPS as reported against the analyst consensus before the release; surprise uses the cent-rounded figures shown (in dollars when EPS and consensus have opposite signs). Stock reaction = close before the results to close after (the first close following a release after the bell or before the open).

PDFS recent SEC filings (last 120 days)

Source: SEC EDGAR. Quotes are the opening words of each item as filed; each form links to the filing. Insider Form 4 filings are listed in the insider sections.

PDFS revenue by product line (quarter ended Jun 30, 2026)

As tagged by the company in its SEC 10-Q / 10-K filings (XBRL).

PDFS suppliers, customers and competitors (named in its 10-K)

Quoted from the company's 10-K filed Feb 24, 2026.

PDFS customer concentration

In the period ended Jun 30, 2026, 3 direct customers each accounted for at least 10% (22%, 19%, 10%) of revenue, per the company's 10-Q filed Aug 6, 2026. The company does not name them.

PDFS company outlook (results filed Aug 6, 2026)

• “Financial Outlook "In the second quarter of 2026, PDF Solutions continued on its growth trajectory, enabled by a broad product and services portfolio developed and curated to address the evolving needs of the semiconductor manufacturing industry," said John Kibarian, CEO and President of the Company.”

Quoted word-for-word from the SEC 8-K results press release.

PDFS analyst estimates and revisions

PDFS options: expected move

Options price a move of about ±17.9% (±$8.03) by Nov 20, 2026, which includes earnings on Nov 5, 2026. Over the last 8 reports the stock moved ±6.7% on average.

30-day implied volatility 79.3% vs 78.2% realized over the last 30 trading days. Put/call ratio (volume) 0.07. Cboe delayed quotes (15 min). Expected move = at-the-money straddle.

Key Statistics (as of October 29, 2026 at 06:30 UTC)

Technical Analysis (PDFS)

Nexqual's technical model rates PDFS "SELL" based on 1 bullish and 4 bearish signals across 127 daily candles, as of October 29, 2026 at 06:30 UTC.

Analyst Ratings (PDFS)

Wall Street analysts rate PDFS "Buy" based on 8 analysts, with a mean price target of USD 60.75 (range USD 50–68), per Nexqual as of October 29, 2026 at 06:30 UTC.

Earnings (PDFS)

Recent Earnings History

Source: Nexqual, October 29, 2026 at 06:30 UTC.

Financials & Fundamentals (PDFS)

Source: Nexqual, October 29, 2026 at 06:30 UTC.

Financial Health Score (PDFS)

Nexqual rates PDF Solutions, Inc.'s overall financial health "Solid" across five dimensions, as of October 29, 2026 at 06:30 UTC.

Ownership (PDFS)

Source: Nexqual, October 29, 2026 at 06:30 UTC.

Leadership (PDFS)

PDF Solutions, Inc. is led by John K. Kibarian, Co-Founder, President, CEO & Director, per Nexqual as of October 29, 2026 at 06:30 UTC.

Major Backers & Investors (PDFS)

Notable institutional backers of PDF Solutions, Inc. include Wasatch Advisors LP, Needham Investment Management, L.L.C., Needham Funds Inc-Needham Aggressive Growth Fund, according to Nexqual as of October 29, 2026 at 06:30 UTC.

Active Investors

Index Funds (Passive)

Source: Nexqual, October 29, 2026 at 06:30 UTC.

From PDF Solutions, Inc.'s Latest SEC 10-K Filing (filed 2026-02-24)

Key Strengths & Strategy (as disclosed to the SEC)

• Our business could suffer significantly if we fail to protect our proprietary technology.
• Our success is largely dependent upon our proprietary software.
• Our secureWISE system is architected to deliver secure, end-to-end remote connectivity to equipment over private networks to provide operator visibility into data to drive predictive analytics.
• Further, our IP includes proven methodologies that our implementation teams use as guidelines to drive our customers' use of our technology.

Legal & Regulatory Risks (Item 1A, quoted)

• We and our third-party service providers are exposed to risks related to information technology infrastructure, information management and protection, cybersecurity threats, and cyber incidents; if we or our third-party providers fail to protect confidential information and/or experience a cyber incident, there may be damage to our brand and reputation, material financial penalties, and legal liability.
• We and our customers are subject to laws and regulations concerning data privacy, data security, consumer protection, and advertising and these laws and regulations are continually evolving, which exposes us to potential material risks, including significant liability, negative publicity, and/or an erosion of trust, which could materially adversely affect our business, results of operations, and financial condition.
• Our technologies could infringe the IP rights of others, causing costly litigation and the loss of significant rights.
• Changes in tax laws, both within the United States and outside of the United States, could change our tax burden and adversely affect our business, financial condition and results of operations.

Source: SEC EDGAR 10-K, official filing. Curated by Nexqual.

Peers & Related Stocks

Data source: Nexqual — market data, technical indicators, analyst consensus, earnings, SEC EDGAR filings. Last updated: October 29, 2026 at 06:30 UTC. This page is informational and not investment advice.

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