Library Setup:

library(quantmod)
## Loading required package: xts
## Loading required package: zoo
## 
## Attaching package: 'zoo'
## The following objects are masked from 'package:base':
## 
##     as.Date, as.Date.numeric
## Loading required package: TTR
## Version 0.4-0 included new data defaults. See ?getSymbols.
library(psych)

Stock and graph setup:

start=as.Date("2014-01-01")
end=as.Date("2018-08-10")
getSymbols("HMNY", src="yahoo", from=start, to=end)
## 'getSymbols' currently uses auto.assign=TRUE by default, but will
## use auto.assign=FALSE in 0.5-0. You will still be able to use
## 'loadSymbols' to automatically load data. getOption("getSymbols.env")
## and getOption("getSymbols.auto.assign") will still be checked for
## alternate defaults.
## 
## This message is shown once per session and may be disabled by setting 
## options("getSymbols.warning4.0"=FALSE). See ?getSymbols for details.
## 
## WARNING: There have been significant changes to Yahoo Finance data.
## Please see the Warning section of '?getSymbols.yahoo' for details.
## 
## This message is shown once per session and may be disabled by setting
## options("getSymbols.yahoo.warning"=FALSE).
## [1] "HMNY"
plot.ts(HMNY$HMNY.Close, main="Helios and Matheson Analytics Inc \nDaily Stock Prices from 1/1/14 to 8/10/18", ylab="$ / Share")

Various analyses:

str(HMNY) #structure
## An 'xts' object on 2014-01-02/2018-08-09 containing:
##   Data: num [1:1160, 1:6] 1425 1402 1400 1388 1450 ...
##  - attr(*, "dimnames")=List of 2
##   ..$ : NULL
##   ..$ : chr [1:6] "HMNY.Open" "HMNY.High" "HMNY.Low" "HMNY.Close" ...
##   Indexed by objects of class: [Date] TZ: UTC
##   xts Attributes:  
## List of 2
##  $ src    : chr "yahoo"
##  $ updated: POSIXct[1:1], format: "2018-08-13 00:00:55"
describe(HMNY) #common formulas applied to it
##               vars    n       mean          sd median trimmed    mad  min
## HMNY.Open        1 1160    1012.90      839.21 708.75  875.71 428.10 0.07
## HMNY.High        2 1160    1074.87      930.52 742.50  917.63 459.61 0.07
## HMNY.Low         3 1160     962.00      764.34 672.50  841.28 404.01 0.06
## HMNY.Close       4 1160    1009.21      827.13 705.00  875.66 435.51 0.06
## HMNY.Volume      5 1160 1299714.48 18969805.11   0.00 2467.89   0.00 0.00
## HMNY.Adjusted    6 1160    1008.70      826.83 705.00  875.02 435.51 0.06
##                       max        range  skew kurtosis        se
## HMNY.Open          8350.0      8349.93  2.45    10.39     24.64
## HMNY.High          9715.0      9714.93  2.67    12.44     27.32
## HMNY.Low           7052.5      7052.44  2.15     7.44     22.44
## HMNY.Close         8225.0      8224.94  2.38     9.88     24.29
## HMNY.Volume   473889400.0 473889400.00 19.03   408.59 556972.66
## HMNY.Adjusted      8225.0      8224.94  2.38     9.90     24.28
head(HMNY) #older data
##            HMNY.Open HMNY.High HMNY.Low HMNY.Close HMNY.Volume
## 2014-01-02    1425.0    1425.0   1417.5     1417.5           0
## 2014-01-03    1402.5    1402.5   1397.5     1397.5           0
## 2014-01-06    1400.0    1400.0   1387.5     1387.5           0
## 2014-01-07    1387.5    1470.0   1387.5     1450.0           0
## 2014-01-08    1450.0    1505.0   1450.0     1472.5           0
## 2014-01-09    1412.5    1485.0   1412.5     1485.0           0
##            HMNY.Adjusted
## 2014-01-02      1398.181
## 2014-01-03      1378.454
## 2014-01-06      1368.590
## 2014-01-07      1430.239
## 2014-01-08      1452.432
## 2014-01-09      1464.761
tail(HMNY) #newer data
##            HMNY.Open HMNY.High HMNY.Low HMNY.Close HMNY.Volume
## 2018-08-02      0.20      0.20     0.10       0.10    98048900
## 2018-08-03      0.11      0.14     0.06       0.07   155377100
## 2018-08-06      0.07      0.18     0.07       0.08   473889400
## 2018-08-07      0.10      0.12     0.07       0.07   313246200
## 2018-08-08      0.07      0.08     0.06       0.07   197437600
## 2018-08-09      0.07      0.07     0.06       0.06   136594900
##            HMNY.Adjusted
## 2018-08-02          0.10
## 2018-08-03          0.07
## 2018-08-06          0.08
## 2018-08-07          0.07
## 2018-08-08          0.07
## 2018-08-09          0.06

head(HMNY) tail(HMNY)