Key Highlights

  • Zscaler (NASDAQ:ZS) rose 38.90% in a month to USD 262.38 after an October 6, 2026 investor day and fiscal 2027 revenue guidance of USD 3.908 billion to USD 3.938 billion.
  • MongoDB (NASDAQ:MDB) rebounded 27.32% to USD 396.40 after a drop of about 15% on September 28, when its chief executive left for Meta. HubSpot (NYSE:HUBS) rose 26.35% to USD 252.70 after a reorganization cutting nearly 660 jobs.
  • DocuSign (NASDAQ:DOCU) rose 26.32% to USD 83.23 on an expanded Salesforce partnership and a buyback. Elastic (NYSE:ESTC) rose 24.81% to USD 106.92 after launching two artificial intelligence tools in published market data.
  • A J.P. Morgan note dated October 8, 2026 said the software ETF had gained about 21% since June, so sector flows lifted all five, yet HubSpot is still down 36.67% and MongoDB down 6.18% in 2026.

Zscaler (NASDAQ:ZS): Up 38.90% After Investor Day

At its October 6, 2026 investor day Zscaler (NASDAQ:ZS) reaffirmed guidance and set out a long-term path toward USD 8 billion of annual recurring revenue, with a higher case tied to artificial intelligence adoption. TD Cowen raised its target to USD 230 from USD 200 afterward, and other firms also lifted targets. Fiscal 2026, which ended July 31, brought revenue of USD 3.35 billion, about 20% growth excluding the Red Canary acquisition, and an operating loss that narrowed to 0.4% of revenue in the fourth quarter. Guided growth slows to under 18%, so the market is paying for durability. Zscaler sells security delivered through its cloud, so growth depends on large customers adding seats and products such as data protection. The stock also rode a broad software recovery. The software ETF rose 2.81% on October 9, 2026 with Zscaler among the day's leaders at about 7.8%, and a J.P. Morgan note dated October 8 said the group had gained about 21% since June on estimate upgrades. On October 21 the shares rose 7.8% again as DA Davidson started coverage at Neutral with a USD 215 target.

MongoDB (NASDAQ:MDB): Up 27.32% After a CEO Exit Selloff

On September 28, 2026 MongoDB (NASDAQ:MDB) announced that Desai had resigned with immediate effect to become Meta's chief enterprise platform officer, and that Ittycheria would serve as interim chief executive while a search runs. The shares fell about 15%, their largest one-day drop since March, to a one-month low. Needham called the timing unfortunate but saw no sign of business weakness, while William Blair said the news created more questions than answers. The company said guidance was unchanged, and investors took comfort that a known leader was in charge. The founder-era chief executive returning on an interim basis also signals continuity to enterprise buyers, who sign multi-year commitments. The company held its investor day days later, and published coverage said it raised long-term targets and previewed Atlas Infinite, a deployment option that separates compute from storage, in public preview on AWS. Figures for the targets were not found. By October 6 the stock was up 7.34% for the week at USD 362.64, and by October 9 it closed at USD 379.79.

HubSpot (NYSE:HUBS): Up 26.35% After Job Cuts

Chief executive Yamini Rangan told staff the company's pivot toward artificial intelligence required difficult choices about how it is organized. She said the cuts were not driven by artificial intelligence efficiencies or simple cost cutting, and that the aim is a flatter structure with fewer management layers. HubSpot (NYSE:HUBS) expects the restructuring to cost about USD 65 million to USD 75 million, according to a company filing. Investors often welcome cost discipline at software companies, though layoffs can also signal slower growth than planned. The charge is small relative to revenue, but it shows management is still adjusting costs after earlier growth investment. HubSpot sells customer relationship software for small and mid-sized businesses. On October 1, 2026 the shares rose about 4% to USD 213.84 as beaten-down software names bounced. An October 8 industry note, as described in a secondary summary, cut the stock to Neutral with a USD 240 target, while UBS did so on October 27 with USD 310.

DocuSign (NASDAQ:DOCU): Up 26.32% on a Salesforce Link

On October 14, 2026 the company was reported to have expanded its partnership with Salesforce (NYSE:CRM). The deal places its Intelligent Agreement Management platform inside Salesforce, Agentforce and Slack, so DocuSign (NASDAQ:DOCU) gains distribution. The idea is that artificial intelligence agents working in sales and service can draft, send and track agreements without leaving those tools. The shares rose 4.04% that day. The commentary did not give contract values, so the revenue effect is unknown. It also reported a 90-day gain near 40.93%, which shows most of the recovery began before this item. Salesforce is a large distribution channel, so integration could raise sales if customers adopt it, though adoption takes time. Analyst consensus in published commentary was only Hold. DocuSign expanded its repurchase authorization by USD 2.0 billion on March 17, 2026, leaving about USD 2.6 billion of capacity, according to published commentary. Buybacks support per-share earnings but do not replace growth.

Elastic (NYSE:ESTC): Up 24.81% on New AI Tools

The two tools are designed to automate root cause analysis and incident response, tasks that site reliability engineers handle by hand. Nightshift AI SRE works inside the Observability product, while AlertZero is aimed at reducing noisy alerts in Security. Elastic (NYSE:ESTC) sells search, observability and security software, and its pitch is that its data platform lets artificial intelligence agents find and act on company data. The October 16 commentary, which did not give an exact one-day move, said the shares had gained 14.19% over one month and 57.88% over 90 days. Site reliability engineers manage uptime for applications, and automating their work is a large potential market for software vendors. Competition from larger vendors remains intense and pricing is contested. Elastic also benefited from a broad recovery in software. A J.P. Morgan note dated October 8 said infrastructure software had led the sector on earnings upgrades, and the software ETF rose 2.81% on October 9.

Where Things Stand

The answer is that a sector-wide recovery in software, helped by estimate upgrades, lifted all five, with company news adding to it. Zscaler (NASDAQ:ZS) had an investor day and MongoDB a leadership reset. HubSpot (NYSE:HUBS) cut costs, DocuSign announced a partnership and Elastic launched new tools. Two remain below their January levels, so the group is rebounding, not breaking out. The next quarterly reports will test whether growth supports the higher prices. The risks described above also apply to MongoDB (NASDAQ:MDB). The next company disclosures from MongoDB (NASDAQ:MDB) are the key test. Readers can check the latest company filings for DocuSign (NASDAQ:DOCU). This summary is not advice on DocuSign (NASDAQ:DOCU). Later reporting on Elastic (NYSE:ESTC) will add detail. The risks described above also apply to Elastic (NYSE:ESTC).