shares of regeneron pharmaceuticals inc regn dropped 077 to 64275 tuesday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 039 to 470090 and the dow jones industrial average djia rising 015 to 3614222 the stocks fall snapped a fourday winning streak regeneron pharmaceuticals inc closed 4387 short of its 52week high 68662 which the company achieved on september 3rd the stock demonstrated a mixed performance when compared to some of its competitors tuesday as johnson  johnson jnj fell 052 to 16267 novartis ag adr nvs fell 045 to 8191 and amgen inc amgn fell 097 to 20539 trading volume 625386 remained 152142 below its 50day average volume of 777528 editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use