what stocks dropped the most this week: guide

Stocks That Dropped the Most This Week

This guide answers a common and timely question for investors and market watchers: what stocks dropped the most this week, and how should you interpret those moves? In the paragraphs that follow you will find clear definitions, the ranking methods used by mainstream trackers, the usual market drivers behind large weekly falls, recommended screen settings, and practical cautions for research and trading. The article also points to reliable data providers and shows how to set up live weekly‑losers screens. As of January 15, 2026, according to Yahoo Finance and other market reporters, earnings season and sector rotation were prominent influences on this week’s individual-stock volatility.

Note: this page explains methods and sources and points readers to live pages for ticker-by-ticker data rather than embedding ephemeral lists. For real‑time execution, consider using Bitget’s tools and Bitget Wallet when tracking tokenized or token-linked products.

Definition and scope

When readers ask "what stocks dropped the most this week," they typically mean a list of equities that registered the largest declines across a defined one‑week window. Definitions and scope vary across providers; here are the accepted options you will see and why they matter.

• Typical time window: most providers use the most recent five trading days (a market week, often Monday through Friday). Alternatives include a rolling 7‑calendar‑day view to include weekend or holiday effects. When you search for what stocks dropped the most this week, check the provider’s time window—differences can change rankings.

• Ranking basis: the dominant measure is percentage decline (close‑to‑close % change). Other rankings include absolute dollar decline (useful for high‑price large caps) and market‑cap–weighted impact (useful to measure index‑level effects). A stock down 50% from $1 to $0.50 differs materially from a $50 drop in a $1,000 stock; percentage vs. absolute‑dollar ranking reflects those different stories.

• Geographic and listing scope: some screens restrict to U.S. exchanges (NYSE/NASDAQ/AMEX). Others include global listings (LSE, HKEX, TSE, etc.). Many weekly losers lists exclude OTC/penny stocks by default to reduce noise, while specialized trackers include them for completeness.

• Inclusion/exclusion of ETFs and funds: mainstream "top losers" lists may include ETFs. If you want pure equity moves, filter out ETFs and funds. If you want market‑breadth or sector signals, include them.

Common metrics and ranking methods

Providers use several principal metrics to build weekly losers lists. Understanding these makes the results interpretable.

• Percentage change (close‑to‑close): the most common metric for "what stocks dropped the most this week." It equals (closing price end of window / closing price start of window) − 1, expressed as a percent. It normalizes across prices and highlights relative moves.

• Absolute dollar change: shows the raw price movement (end price − start price). This highlights index- or portfolio‑level pain when large‑cap stocks move.

• Market‑cap–weighted contribution: calculates how much a single stock moved the overall index or market cap during the week. This is critical for gauging index impact: a 5% drop in a mega‑cap can move an index more than a 25% drop in a microcap.

• Intraday vs. close‑to‑close: weekly lists usually use close prices for consistency. Intraday peak-to-trough measures capture realized volatility during the week but are noisier for ranking purposes.

• Adjustments for corporate actions: splits, reverse splits, dividends (cash and special), mergers, and delistings must be normalized. Proper panels use split‑adjusted historical prices; otherwise a post‑split price jump could appear as a giant percentage move.

• Treatment of halted or delisted securities: many screens exclude securities under extended trading halts or already delisted names. Others document them separately because these events often explain extreme weekly drops.

• Equal‑weighted vs. cap‑weighted lists: equal‑weighted lists treat each ticker equally (helpful for retail idea generation). Cap‑weighted or contribution lists emphasize systemic or index risk.

Primary data sources and trackers

Reliable trackers and data providers publish weekly biggest‑losers lists or live "top losers" screens. Each has different coverage, update frequency, and default filters. Common sources include:

• MarketBeat — weekly biggest stock losers and percentage decliners, often with U.S. exchange focus and editorial context.
• StockAnalysis — "Top Stock Losers In The Past Week" with screens and data export options.
• TradingView — real‑time screener, user‑configurable filters and community comments.
• Investing.com — global coverage with ETF and commodity losers included by default unless filtered.
• Morningstar — fundamental focus, often excluding OTC names by default.
• Yahoo Finance — quick lists and market commentary; frequently cited for earnings‑linked moves. As of January 15, 2026, Yahoo Finance coverage noted bank and airline earnings causing moves across major names.
• The Motley Fool — editorially framed lists highlighting notable weekly losers and long‑form caveats.
• Barron’s / major news outlets — qualitative coverage for index‑moving or newsworthy declines.

Each provider aims to be factual; differences in universe (U.S. only vs global), time window (5 trading days vs 7 calendar days), and minimum volume or market‑cap filters will change which tickers appear. When you investigate what stocks dropped the most this week, cross‑check at least two sources for clarity.

Typical market drivers of large weekly declines

A steep one‑week drop usually has an identifiable driver. The same company can fall for many different reasons. Common drivers include:

• Earnings misses and guidance cuts: quarterly results that fall short of expectations, or downward guidance for revenues or margins, commonly cause double‑digit weekly declines in small and mid caps and notable drops even in large caps.

• Regulatory or legal developments: fines, enforcement actions, or industry regulation can abruptly reduce valuations. For example, sector rulings affecting crypto or banking can move many companies in the same week.

• Macro shocks and rate expectations: central bank commentary, inflation prints, or interest‑rate shifts often trigger sector rotation; banks, growth tech, and REITs can have outsized responses.

• Geopolitical events and commodity shocks: supply disruptions or political instability can pressure oil, mining, or defense names and create spillover volatility for broader markets.

• Sector rotation and thematic fatigue: investors moving away from momentum themes (for example, AI or high‑growth software) into value or cyclical sectors can make high‑beta names fall sharply in a week.

• Liquidity and trading halts: thinly traded small caps can gap down on low volume, escalate short‑interest squeezes, or move violently after a halt is lifted.

• Fraud, restatements, or delisting risk: a forensic accounting issue, material misstatement, or delisting notice can produce a near‑total loss for shareholders in the shortest time frames.

• Corporate events: debt covenant breaches, credit downgrades, or large insider selling announcements can show up as large weekly declines.

As of January 15, 2026, earnings commentary from Yahoo Finance and industry reporters indicated bank earnings and certain airline and chipmaker reports were a central theme driving several notable weekly moves. For example, bank stocks reacted to regulatory and policy news even as many reported solid underlying earnings; airline and chip names moved on mixed earnings‑and‑guidance outcomes.

Sector and capitalization patterns

Patterns emerge when you ask what stocks dropped the most this week by sector and market cap:

• Small‑caps and microcaps: these dominate percentage‑based weekly‑losers lists because smaller market caps are easier to move on limited flows. OTC and penny stocks often appear in headline lists unless filters exclude them.

• Biotech and early‑stage tech: these sectors respond sharply to binary news (trial results, FDA decisions, or funding announcements) and thus appear frequently among the week’s biggest percentage decliners.

• Large caps: less frequent in percentage‑ranked weekly loser lists, but when a large cap falls it can move indices markedly. Market‑cap‑weighted lists will therefore highlight a different set of names focused on index impact.

• Cyclical sectors: energy, materials, and industrials can show coordinated weekly moves from commodity price swings or macro data; they may appear among weekly losers during commodity selloffs or demand‑concern weeks.

Notable examples (this week)

This section summarizes themes and illustrative names reported by data trackers and market news outlets during the most recent reporting week. It references provider lists for readers to confirm live tickers: MarketBeat, StockAnalysis, TradingView, and Yahoo Finance.

• Bank names saw mixed reactions: despite generally strong fourth‑quarter results across major banks, certain banking stocks sold off amid policy concerns and headline risk. As of January 14–15, 2026, Yahoo Finance reported that some bank shares fell mid‑single digits after a mix of earnings and news headlines; cross‑check with MarketBeat for weekly percentage rankings.

• Airlines and logistics: Delta reported Q4 numbers with mixed cues, and shares moved in reaction — an example of how forecast or partnership comments can lead to weekly declines even after earnings beats.

• Chip and AI supply chain: while TSMC’s upbeat outlook supported chip gear names overall, some tech stocks still registered mid‑week pullbacks as investors rotated; TradingView and StockAnalysis trackers highlighted individual chip‑supplier or software names among weekly decliners depending on guidance changes.

• Small‑cap and biotech names: several small biotech and micro‑cap tickers appeared across StockAnalysis and MarketBeat weekly lists with double‑digit drops tied to study results or funding announcements.

These examples are illustrative rather than exhaustive. For the exact tickers and numeric declines for what stocks dropped the most this week, consult the live pages of MarketBeat, TradingView, StockAnalysis, and Yahoo Finance for up‑to‑the‑minute figures.

Methodology for compiling a weekly‑losers list

A robust and reproducible weekly‑losers methodology clarifies what you are measuring and why. Below are the usual choices and their implications.

Time window selection

• Market week (Mon–Fri): most common and aligns with trading sessions and close prices. This avoids weekend news and premarket noise but can miss late Friday after‑hours moves.

• Trailing 7 calendar days: captures weekend events and 24/7 asset classes (crypto) but mixes trading and non‑trading periods for listed equities.

• Choice implications: use Mon–Fri if you want standard equity comparisons; use 7‑day if you track tokenized stocks or cross‑asset spillovers that occur outside market hours.

Price basis and corporate actions

• Close‑to‑close prices: reliable, consistent, and the default for most weekly lists.

• Split and dividend adjustments: always use split‑adjusted prices; large splits or reverse splits materially change percentage calculations if not handled.

• Halted or delisted securities: decide whether to include names that halted during the week or were delisted; many datasets mark them separately to explain extreme moves.

Universe selection and filters

• Exchange filters: choose NYSE/NASDAQ/AMEX for core U.S. equity focus; add other exchanges for global coverage.

• Minimum average daily volume: set a minimum (for example 100k–300k shares) to avoid illiquid, manipulated moves.

• Market‑cap cutoffs: exclude microcaps under a dollar market cap threshold if you want to avoid penny stock noise; include them if your interest is speculative microcap moves.

• Exclude/Include ETFs and ADRs: decide upfront whether funds should appear in the losers list.

• News tagging: add filters for earnings, regulatory filings, or press releases so that the weekly losers list includes explanatory context where possible.

How to use and interpret weekly‑losers lists

Weekly losers lists are tools — not final answers. Use them as follows:

• Idea generation and risk monitoring: lists help identify companies needing follow‑up research or names that are under pressure in your portfolio.

• Distinguish short‑term price action from fundamental distress: a one‑week drop can reflect transitory headlines; look for repeated negative signals (downgraded guidance, widening credit spreads, or sustained outflows) before concluding long‑term damage.

• Liquidity and manipulation risk: large percentage drops in thinly traded names may indicate manipulation risk or forced selling. Check volume, order book depth, and institutional ownership data.

• Follow‑up research steps: read the company’s press releases, SEC filings, short‑interest reports, and recent earnings commentary. Use primary sources to confirm causation rather than assuming it from the price move alone.

• Use Bitget tools for execution and tracking: if tracking tokenized exposures or crypto‑linked securities, use Bitget’s platform and Bitget Wallet for custody when available. (Bitget Wallet is recommended for web3 follow‑up and secure on‑chain tracking of tokenized instruments.)

Limitations and caveats

Weekly‑losers lists are subject to several important limitations you should understand before acting:

• Data latency: not all providers update at the same frequency. Some compile after market close; others update in near real time.

• Pre‑ and after‑market moves: many screens use official close prices and omit overnight or premarket moves unless explicitly included in the time window.

• Corporate events and survivorship bias: reverse splits, delistings, or bankruptcies can produce extreme percentage changes; some providers remove names that no longer trade, biasing historical lists.

• Illiquidity and penny‑stock noise: the largest percentage drops frequently appear in low‑priced, thinly traded names and may not reflect fundamental changes.

• Sample choice effects: equal‑weighted vs cap‑weighted lists show different pictures. A list of the five largest percentage losers will look nothing like a list of the five largest index contributions.

• No substitute for primary documents: daily headlines and screener results should lead to reading earnings releases, SEC filings, and regulator notices for confirmation.

Tools and practical examples

Where to get up‑to‑date weekly‑losers data and how to configure screens:

• TradingView: set timeframe to "1W" or choose a "1W change" metric in the screener, sort by % change ascending, and add filters such as minimum average volume and exchange. TradingView supports global exchanges and intraday data overlays.

• Investing.com: choose the "Top Losers" screen, set timeframe = 1 week (or 7 days), and apply exchange or ETF filters. Investing.com includes many international tickers by default.

• MarketBeat / StockAnalysis: use their weekly lists for quick reference; both provide editorial notes explaining large moves.

• Yahoo Finance: consult ticker pages and market news to confirm drivers; Yahoo’s live coverage often ties earnings events to price moves.

Practical screener settings to find what stocks dropped the most this week (Appendix A contains a sample): timeframe = 1 week (or last 5 trading days), sort by % change ascending, minimum average daily volume = 100k shares, market‑cap minimum = $50m (adjust per research tolerance), exclude ETFs and OTC if you want a tradable equity list.

As of January 15, 2026, reporters noted that bank earnings, policy headlines, and selected chip names shaped intraday and weekly moves; cross‑check any tickers you find in weekly‑losers tables with the corresponding company filings and earnings transcripts for that period.

Historical context and notable weekly collapses

Historically, some weekly collapses became landmarks for investors and policy makers:

• Index‑level episodes: weeks that included widespread macro shocks (currency crises, Federal Reserve surprises, or systemic banking stress) produced outsized index declines and long‑lasting market effects.

• Individual stocks: certain corporate fraud revelations, sudden debt covenant breaches, or failed clinical trials in biotech have produced near‑total shareholder losses within a week. These events reinforce the importance of filtering for liquidity and fundamentals.

Understanding how often and why these collapses occur helps temper interpretations of any single weekly list: many large weekly drops are idiosyncratic and not indicative of broad market collapse.

See also

• Daily top losers
• Sector rotation and thematic flows
• Volatility measures (VIX and intraday realized volatility)
• Market‑cap weighted vs equal‑weighted indexes
• Short interest lists and borrow availability
• Most active stocks and volume screens

References and further reading

• MarketBeat — weekly biggest stock losers and percentage decliners (live listings)
• StockAnalysis — top stock losers in the past week (screens and rank data)
• TradingView — real‑time screener and "biggest stock losers" communities
• Investing.com — global top losers and ETF breakdowns
• Morningstar — stock fundamentals and market movers
• Yahoo Finance — earnings, market coverage, and live updates (reported Jan 13–15, 2026)
• The Motley Fool — editorial analyses of significant weekly moves
• Barron’s and major news outlets — context for large‑cap index movers and sector stories

Readers should consult each provider’s live pages for the most recent ticker‑level declines rather than relying on static snapshots.

Appendix A: Sample screen settings

Recommended starter settings to find what stocks dropped the most this week with reasonable noise control:

• Timeframe: 5 trading days (Mon–Fri) or 7 calendar days if you want weekend coverage.
• Sort by: % change (ascending) to surface largest percentage losers.
• Minimum average daily volume: 100,000 shares (raise to 500k for institutional focus).
• Market‑cap minimum: $50 million (increase to $500m to restrict to mid/large caps).
• Exclude: ETFs (unless you want fund moves), OTC/penny listings (if you want to avoid manipulation risk).
• Add columns: volume change, news headlines (earnings/regulatory), short interest percentage, and market‑cap contribution if available.
• News filter: restrict to names with an earnings release or regulatory filing during the week for quicker causal checks.

Appendix B: Glossary

• Percentage decline: percent change in price between two points in time (commonly close‑to‑close).
• Absolute decline: raw dollar change in price.
• Market‑cap contribution: how much a single stock’s move changed the total market cap or index value.
• Stock split: corporate action that increases shares outstanding and divides price; historical prices are typically adjusted.
• Reverse split: corporate action that consolidates shares and raises nominal price; can distort short windows if not adjusted.
• Gap down: opening price significantly below prior close, often due to overnight news.
• Trading halt: temporary suspension of trading in a security; can precede large post‑halt price moves.

Notes on provenance and currency

This article explains methods and points to live data sources for up‑to‑the‑minute ticker‑level information rather than attempting to embed transient lists. As of January 15, 2026, market reporters (including Yahoo Finance and other listed providers) highlighted bank and earnings‑driven moves, while chipmaker and airline earnings influenced other notable weekly moves. For the latest figures on what stocks dropped the most this week, consult the real‑time screens at MarketBeat, TradingView, Investing.com, StockAnalysis, and Yahoo Finance.

Further exploration: if you want a tailored weekly losers list (for a specific exchange, market cap band, or ETF‑excluded universe), tell us your filters and we will provide a step‑by‑step screener configuration and a checklist for follow‑up verification using primary filings and Bitget tools.

Want to track weekly losers with secure custody and on‑chain tracking for tokenized exposures? Explore Bitget’s platform and consider Bitget Wallet for web3 custody and alerts.