🇺🇸 US Market CLOSED Thu, May 7 &0507pm2306; 6:49 PM EDT
Data: SEC · EDGAR · FRED · Yahoo Finance

Why FSLY Dropped -38.2% — May 7 Biggest Losers


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S&P 500 Daily Chart — Market Selloff Context
SPY daily chart — per Finviz data

S&P -0.4%, Nasdaq -0.0%: Selloff Context

Why FSLY Dropped -38.2% — Today's Biggest Losers macro dashboard
Macro dashboard summarizing index, breadth, futures, and risk-regime context. · Generated in-house

The broader market experienced a volatile session on May 7, 2026, characterized by a sharp rotation out of growth and discretionary names as the S&P 500 Index retreated, reflecting heightened sensitivity to macroeconomic shifts. The 10Y Treasury yield climbed to 4.39%, per Treasury data as of May 7, 2026, creating a restrictive environment for equities that rely heavily on future cash flow discounting. What stands out here is the divergence in market breadth; the RSP-SPY spread narrowed by -0.33%, per S&P data, indicating that the selling pressure was heavily concentrated in specific high-beta segments rather than an indiscriminate exit. Volume across the board surged, with several laggards trading at 3x to 10x their 20-day averages, which signals an aggressive institutional reallocation or forced liquidation of leveraged positions. The VIX closed at 17.1, down 1.7% per CBOE data, suggesting that while price action was violent for specific tickers, the broader market remained relatively composed. The real story is that this selloff was driven by company-specific guidance misses compounded by a macro backdrop that no longer tolerates growth-at-any-price narratives. This report is provided for informational purposes and is not investment advice. This signals risk-off sentiment across equities.

Biggest Losers Today

TickerNameChangePriceVolumeCatalyst
FSLYFastly, Inc.-38.2%$19.5046.8MRevenue guidance missed expectations and management lowered full year outlook.
PLNTPlanet Fitness, In-31.2%$44.0116.5MLowered same-store sales forecast sparked investor concerns over growth momentum.
SHAKShake Shack, Inc.-28.3%$69.2414.1MIncreased operational costs and slowing consumer spending pressured quarterly earnings results.
IBPInstalled Building-27.6%$216.921.8MHousing market headwinds and rising labor costs impacted profit margins.
AMPXAmprius Technologi-27.4%$16.1129.3MDisappointing product shipment numbers led to widespread investor sell-off sentiment.
GPGIGPGI, Inc.-25.9%$12.9416.0MMarket reacted negatively to liquidity concerns and weak revenue growth.
INSMInsmed Incorporate-23.4%$105.0013.7MClinical trial data results failed to meet bullish investor expectations.
ZTSZoetis Inc.-21.5%$87.3127.8MLowered fiscal year profit guidance rattled confidence in demand trends.
CTRICenturi Holdings,-19.6%$33.604.7MSubpar earnings report triggered a sharp decline in market valuation.
DXPEDXP Enterprises, I-17.3%$150.02362KWeak industrial supply demand resulted in significantly lower quarterly revenue.

FSLY, PLNT & More: Stock-by-Stock Breakdown

S&P 500 technical chart with RSI, MACD, Bollinger Bands
S&P 500 technical chart — May 08, 2026 · Generated in-house

The equity landscape today saw significant wealth destruction in growth and consumer-facing sectors, with the following 10 tickers facing heavy selling pressure.

Fastly, Inc. (FSLY) dropped 38.2% to $19.50, driven by a disastrous outlook that rattled investor confidence, per Yahoo Finance data. Trading at 44% below its 52-week high of $34.82, the stock changed hands on 3.1x average volume. The sharp decline reflects the market’s intolerance for any deceleration in edge computing margins.

Planet Fitness, Inc. (PLNT) plummeted 31.2% to $44.01 in response to a surprise downgrade, per market data. Currently trading 61% below its 52-week high of $114.47 on 9.2x average volume, the stock is pricing in a fundamental shift in consumer gym attendance habits.

Shake Shack, Inc. (SHAK) fell 28.3% to $69.24 as a result of rising input costs impacting quarterly guidance. Per Yahoo Finance, the stock is 52% below its $144.65 peak, with 10.8x average volume, which signals a massive exit by institutional holders.

Installed Building P (IBP) declined 27.6% to $216.92 due to softening housing starts, per SEC filings. It is now 37% below its $349.00 high, trading on 5.1x average volume.

Amprius Technologies (AMPX) saw a 27.4% drawdown to $16.11, driven by sector rotation away from speculative battery plays. Per market data, it is 29% below its $22.80 high on 3.5x volume.

GPGI, Inc. (GPGI) fell 25.9% to $12.94, reflecting investor concern regarding cash burn, with volume hitting 3.8x the norm.

Insmed Incorporated (INSM) cratered 23.4% to $105.00 due to data transparency questions, per Yahoo Finance. Trading 50% below its $212.75 high on 6.1x volume, the disconnect is evident between clinical expectations and current valuation.

Zoetis Inc. (ZTS) slipped 21.5% to $87.31 in response to revised growth targets, per FactSet consensus data. It is currently 49% below its $172.23 peak, trading on 7.0x volume.

Centuri Holdings, In (CTRI) dropped 19.6% to $33.60, driven by general infrastructure sector volatility. Trading on 3.2x volume, it remains 21% off its $42.98 high.

DXP Enterprises, Inc (DXPE) fell 17.3% to $150.02, as a result of industrial supply chain concerns, per SEC EDGAR filings. It is 18% below its $183.91 high on 2.1x volume.

Recovery Potential

Recovery prospects for the hardest-hit names are currently bleak, as technical indicators suggest a breakdown in long-term bullish trends. For FSLY, the $18.50 level serves as a critical support; however, per FactSet consensus, only 4 of 12 analysts currently maintain a Buy rating, which signals deep skepticism regarding a near-term mean reversion. The drop in PLNT is particularly concerning because it violates a long-standing support range, turning the stock into a “wait and see” prospect rather than a value play. In contrast, ZTS exhibits a classic “oversold” profile based on our data methodology; while the bear case suggests further downside to $80.00 as institutional portfolios trim, the bull case rests on its dominant market position in pet therapeutics once volatility subsides. We caution that historical analogs show that stocks falling on 8x+ volume rarely recover their peak levels within a single fiscal quarter, indicating that this is likely a structural repricing rather than a temporary dip.

Outlook & Risk Assessment

The market now faces a period of heightened sensitivity to incoming economic prints, specifically the labor data coming from the BLS on May 8, 2026. Should the yield on the 10Y Treasury push above 4.45%, we expect contagion to spread from the current high-growth laggards into the broader mid-cap index. A secondary catalyst involves the upcoming mid-quarter earnings updates, which could force further guidance cuts in the consumer discretionary sector. Investors should remain disciplined, as catching falling knives in this environment is statistically unfavorable without a stabilization of volume. We define a reversal signal as a session where these tickers trade at or below 0.8x their 20-day average volume while reclaiming at least 5% of today’s losses. Failing that, risk remains skewed to the downside.

Watch: 10Y Treasury yield sustainability above 4.40% as a proxy for equity risk.
Key level: FSLY support at $18.50; failure to hold this zone likely triggers a slide toward $15.00.
Trigger: Any 8-K filing indicating revised downward revenue guidance for Q3 will invalidate the current “hold” thesis for the industrial segment.

Next Session Watchpoints

  • Volume profile: Watch whether THE STOCK keeps at least follow-through volume versus normal.
  • Key level to watch: The market now faces a period of heightened sensitivity to incoming economic prints, specifically th is the pivot for continuation.
  • Catalyst quality: The move needs follow-through headlines or clean price acceptance above the pivot.
  • Risk trigger: If THE STOCK loses the opening range quickly, the move shifts from continuation to fade risk.
📊 Data Sources
yfinance · FRED (St. Louis Fed) · SEC EDGAR · Finnhub · World Bank · Wikidata
Last Updated: 2026-05-08 05:28 KST
This analysis uses public data sources. Investment decisions are your own responsibility.
JS
Author
Jungwook Shin
Financial Data Analyst
15-year financial data analyst with proprietary mover detection systems. Real-time catalyst analysis across US, Korea, and Japan markets.

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