Key Highlights

  • MNTN, Inc. (NYSE:MNTN) was quoted 42.43% lower at USD 5.97 in premarket trading on November 5, 2026, after a third-quarter report with 15% Revenue growth and a lower fourth-quarter outlook. ThredUp Inc. (NASDAQ:TDUP) was quoted 25.11% lower at USD 1.64 despite record active buyers.
  • Fastly (NYSE:FSLY) was quoted 14.33% lower at USD 18.02 despite record third-quarter revenue of USD 190.2 million, up 20%.
  • Caris Life Sciences (NASDAQ:CAI) was quoted 14.12% lower at USD 28.53 after 27% revenue growth, with adjusted EBITDA of USD 44.4 million and free Cash Flow of negative USD 39.7 million.
  • HubSpot (NYSE:HUBS) was quoted 11% lower at USD 192.80 after published coverage said the fourth-quarter revenue guide fell short, even as the quarter beat estimates.

MNTN, Inc. (NYSE:MNTN): A Clean Quarter Overwhelmed by the Outlook

MNTN, Inc. (NYSE:MNTN) shows how a clean quarter can be overwhelmed by what comes next. Shares were quoted 42.43% lower at USD 5.97 in premarket trading on November 5, 2026, per the premarket quote, after the third-quarter report of November 4, 2026. Revenue rose 15% to USD 80.3 million with a 79% gross margin, Net Income was USD 7.7 million, and adjusted EBITDA was USD 19.9 million, a 25% margin. The outlook then turned: fourth-quarter revenue is guided to USD 75 million to USD 78 million, fourth-quarter adjusted EBITDA to USD 8 million to USD 10 million, and full-year adjusted EBITDA to USD 66 million to USD 68 million. Chief Financial Officer Patrick Pohlen pointed to execution problems in the go-to-market organization and a realignment of the sales team. Full-year growth is about 10% at the midpoint excluding the Maximum Effort divestiture and 8% on a GAAP basis. The same release named Tony Weisman President and CEO, succeeding Mark Douglas. Cash was USD 252.3 million with no borrowings. The risk sits on the top line, and a premarket move of this size can narrow or widen once regular trading opens.

ThredUp Inc. (NASDAQ:TDUP): Demand Records, Margin and Revenue Guide Lower

ThredUp Inc. (NASDAQ:TDUP) was quoted 25.11% lower at USD 1.64 in premarket trading on November 5, 2026, per the premarket quote, after third-quarter results on November 4, 2026. The demand data were strong: active buyers hit a record 1.82 million, up 16%, orders rose 17% to 1.89 million and revenue grew 7% to USD 88.2 million. Chief Executive James Reinhart, a co-founder, called it a record quarter for active buyers, orders and items sold. Underneath, gross margin eased to 78.2% from 79.4%, the net loss widened to USD 5.5 million, or USD 0.04 per share, and adjusted EBITDA margin was 4.0% against 4.6%. The outlook appears to be what sank the shares. Fourth-quarter revenue of USD 77.0 million to USD 79.0 million would fall about 2% from a year earlier at the midpoint, and adjusted EBITDA margin is guided to negative 4.0% to negative 2.0%. Full-year revenue guidance of USD 337.7 million to USD 339.7 million sits below a range of USD 344.4 million to USD 348.4 million cited in published coverage of an earlier reduction. Cash, restricted cash and marketable securities were USD 57.6 million. A small number of trades can move the price.

Fastly (NYSE:FSLY): Record Revenue, Unexplained Reaction

Fastly (NYSE:FSLY) was quoted 14.33% lower at USD 18.02 in premarket trading on November 5, 2026, per the premarket quote, after a third-quarter report on November 4, 2026 that looked strong on the filed numbers. Revenue was a record USD 190.2 million, up 20% from USD 158.2 million, and the GAAP net loss narrowed to USD 11.3 million, or USD 0.07 per share. Security revenue grew 32% to USD 44.7 million, adjusted EBITDA reached USD 43.5 million against USD 25.7 million, and free cash flow was USD 25.2 million. Net retention rose to 119% from 117%, and 74% of large customers used two or more product suites. Fourth-quarter guidance is revenue of USD 198.0 million to USD 202.0 million and non-GAAP EPS of USD 0.16 to USD 0.18, and full-year revenue is guided to USD 744.0 million to USD 748.0 million. Comparison with analyst consensus was not confirmed, so the reason for the decline is not established by the filing. One datapoint stands out: the top ten customers made up 39% of revenue, up from 32%, so a single large account can move results.

Caris Life Sciences (NASDAQ:CAI): Growth Beats, Margin and Cash Slip

Caris Life Sciences (NASDAQ:CAI) was quoted 14.12% lower at USD 28.53 in premarket trading on November 5, 2026, per the premarket quote, after third-quarter results on November 4, 2026. Revenue rose 27% to USD 275.4 million from USD 216.8 million, with molecular profiling revenue of USD 262.7 million and about 61,500 clinical cases, up about 21%. Full-year revenue guidance was raised to USD 1.04 billion to USD 1.05 billion. The pressure appears to come from profitability and cash. Gross margin was 66% against 68%, adjusted EBITDA fell to USD 44.4 million from USD 51.2 million, and free cash flow was negative USD 39.7 million. Net income was USD 15.3 million, or USD 0.05 per share. Over nine months revenue was USD 755.2 million against USD 519.1 million, so the longer trend is strongly positive. Cash, cash equivalents and restricted cash were USD 665.3 million against long-term indebtedness of USD 393.2 million, net. Laboratories bill payers after testing, so negative free cash flow can reflect timing, but it needs to reverse. Comparison with consensus was not verified.

HubSpot (NYSE:HUBS): A Beat Followed by a Soft Fourth-Quarter Guide

HubSpot (NYSE:HUBS) was quoted 11% lower at USD 192.80 in premarket trading on November 5, 2026, per the premarket quote, after results on November 4, 2026. The figures here come from published coverage of the release, not the company filing, and are approximate. That coverage cites third-quarter revenue of USD 947.6 million against a consensus estimate of USD 925.5 million, growth of about 17%, adjusted Earnings Per Share of USD 3.81 against USD 3.27, and GAAP earnings per share of USD 1.67. The full-year outlook was raised to revenue of USD 3.685 billion to USD 3.687 billion and adjusted earnings per share of USD 13.59 to USD 13.61. Yet published coverage says the fourth-quarter revenue guide missed expectations, and call commentary described an AI shift pressuring growth. Software shares are priced on expected growth, so a soft next quarter can outweigh a beat. Published coverage also notes a UBS downgrade to Neutral from Buy in late October 2026. The risks are AI tools reducing paid seats, pricing shifting toward usage and competition from larger platforms. Quoted moves can reverse.

Where Things Stand

Third-quarter reports sank these shares because the market punished outlooks, margins and cash more than the quarter itself, and the balance of evidence is that growth was intact in nearly every case. MNTN, Inc. (NYSE:MNTN) paired revenue growth with a lower fourth-quarter outlook and a new CEO. ThredUp Inc. (NASDAQ:TDUP) guided to a fourth-quarter revenue decline after record buyers. Fastly (NYSE:FSLY) fell despite record revenue, and the reason against consensus is not established. Caris Life Sciences (NASDAQ:CAI) raised guidance but showed lower margin and negative free cash flow. HubSpot (NYSE:HUBS) beat estimates, per published coverage, but guided the fourth quarter below expectations. The next catalysts are fourth-quarter reports, analyst estimate revisions and the filing details at HubSpot.