zoom video communications inc has struggled to maintain its momentum from early in the pandemic and now citi sees additional obstacles in the company’s way citi research analyst tyler radke downgraded zoom’s stock zm to sell from neutral tuesday warning of stiff competition from microsoft corp msft as well as possible spending constraints among smaller customers “zoom’s postcovid growth trajectory has always been more challenging given pullforward dynamics but we see new hurdles to sustaining growth” he wrote those challenges include heightened competition from microsoft’s teams product macroeconomic pressures on smaller businesses and margin impacts stemming from the company’s business evolution as well as its hiring trajectory zoom shares are down more than 4 in tuesday trading they’re off more than 80 from their october 2020 closing high of 56834 radke wrote that it will be “tough to offset” the headwinds that are “beginning to pile up” for zoom notably tech budgets are starting to reflect a “significant deprioritization” of collaboration software and other socalled unified communicationsasaservice technology further competition from teams is “more of a factor this year” according to radke his conversations at an industry conference earlier this year highlighted “broadbased momentum” for teams when it came to collaboration tools and even replacements for traditional phones radke also worries about margin impacts related to the shifting nature of zoom’s customer mix he said the company benefitted earlier in the pandemic by signing on smaller businesses that had lower customeracquisition costs because they were able to sign themselves up for the service however radke is now concerned that some of these “online” businesses could “churn” or leave zoom which could increase the company’s mix of enterprise business he added that zoom “continues to hire aggressively” across sales and marketing and research and development roles “we continue to see strong job posting activity…which to us suggests there could be downside risk to street margin estimates should slower revenue growth play out” radke wrote radke lowered his price target on zoom shares to 91 from 99 the company is due to report fiscal secondquarter results monday afternoon morgan stanley’s meta marshall wrote tuesday that zoom has a “tricky setup” headed into the upcoming report though she maintained an overweight rating on zoom shares while saying that “operating margin expectations remain too conservative”