ICYMI: Short Seller Slams OSI Systems, Sell-Side Makes Some Notable Calls

In case you missed it, here are some of Benzinga's top stories from Wednesday, Dec. 6, 2017.

Short Sellers Keep Things Interesting

For the second day in a row, a noted short seller went on the attack as Muddy Waters Research founder Carson Block took aim at OSI Systems, Inc OSIS. This comes just one day after Citron Research’s Andrew Left took a swipe at HubSpot, Inc HUBS. Read Wayne Duggan’s break down of Block’s thesis here.

A Trio of Analyst Notes Get The Street Buzzing

In “Henry Schein, Patterson Companies Downgraded On Amazon Fears,” Shanthi Rexaline details the concerns that drove Morgan Stanley to turn bearish on dental equipment suppliers Henry Schein, Inc HSIC and Patterson Companies, Inc PDCO.

Related Link: ICYMI December 5th: A Rare Snap Upgrade, The Crypto Craze Continues, And Myomo CEO Talks About Scaling His Business

Much ado has been made about Cinemark Holdings, Inc CNK introducing a competing program to MoviePass - a company backed by Helios & Matheson Analytics Inc HMNY - which brings the Netflix, Inc NFLX model to the megaplex. In “MoviePass Has Little To Fear From Cinemark's Movie Club, Analyst Says,” Wayne Duggan digs into the sell-side’s reaction.

Finally, In “After Twilio's Rocky Year, Analyst Suggests Investors With High Risk Tolerance Revisit The Stock,” Jayson Derrick explains what’s got KeyBanc recommending investors that don’t mind a bit of volatility give Twilio Inc TWLO a second look.