Scrutinize the data and tweets to envisage if the closing price of $mrk will swell or contract at 2017-07-26. Please affirm either Rise or Fall.
Context: date,open,high,low,close,adj-close,inc-5,inc-10,inc-15,inc-20,inc-25,inc-30
2017-07-12,-0.2,0.6,-0.2,0.7,0.7,0.1,1.3,2.5,2.2,2.0,2.1
2017-07-13,-0.2,0.2,-1.0,0.2,0.2,-0.1,0.8,2.1,2.0,1.8,1.9
2017-07-14,-0.2,0.5,-0.3,0.3,0.3,-0.4,0.3,1.5,1.7,1.5,1.5
2017-07-17,0.9,1.1,-0.1,-0.7,-0.7,0.2,0.8,1.8,2.4,2.1,2.1
2017-07-18,0.1,0.4,-0.2,-0.3,-0.3,0.5,0.8,1.8,2.6,2.4,2.3
2017-07-19,-0.2,0.3,-0.3,0.3,0.3,0.2,0.3,1.1,2.1,2.0,1.9
2017-07-20,-0.0,0.5,-0.1,0.5,0.5,-0.3,-0.3,0.4,1.4,1.4,1.3
2017-07-21,0.3,0.6,-0.1,-0.5,-0.5,0.0,0.1,0.7,1.6,1.9,1.8
2017-07-24,-0.0,0.5,-0.1,-0.1,-0.1,0.1,0.2,0.6,1.4,2.0,1.9
2017-07-25,0.8,1.0,-0.2,-0.3,-0.3,0.4,0.5,0.8,1.5,2.2,2.1

2017-07-12: $mrk call sweepers showed up late, maybe be something up tomorrow, keep a eye on this one. |$rhhby to acquire $cytr?! $pfe $jnj $mrk $gsk $shpg  $dxtr $mrk $ceru $msdi $spex $clsn $dxtr $dcth |$rhhby 
2017-07-13: on watch $mrk |5 things for #pharma #marketers to know: thu., july 13 $azn $teva #fda $fold #diabetes $mrk #raredisease $agn¡­ |merck &amp; company $mrk given daily news sentiment score of 0.07 |5 dru
2017-07-14: rt AT_USER amgen receives fda approval for blincyto  $mrk $amgn |bollard group llc has $5.48 million position in merck &amp; company, inc. $mrk |$pfe $jnj $bmy $mrk investing with options: $pfe $jnj b
2017-07-15: $djia wkly best performing $msft $aapl $dd $v $ba $ge $intc $cat $dis worst $jpm $trv $mcd $pg $unh $mrk $nke $jnj¡­ | &lt;&lt; the best stock picking services reviewed! $vrx $agn $myl $mrk $ko |merck
2017-07-16: $mrk max pain is 63.00 for maturity 07/21/2017. prev close = 63.06.   |$gild currently offers a 18% fcf yield, way above other pharma stocks #valueinvesting #finance #trading $pfe $mrk¡­ | looks like 
2017-07-17: merck &amp; company, inc. $mrk downgraded by bidaskclub to ¡°sell¡± |deutsche bank ag increases merck &amp; company, inc. $mrk price target to $66.00 |AT_USER AT_USER AT_USER AT_USER AT_USER AT_USER A
2017-07-18: dow #stocks trend $msft $cat $intc $mrk $dd $ba $csco $aapl $ibm $mcd $jpm $dis $unh $v $hd $trv $mmm $axp $gs  @ |$bmy $mrk |rt AT_USER AT_USER thanks for follow! see vista partners #investingforlife
2017-07-19: here are the biggest factors weighing on the drugmakers targeting alzheimer's disease  $agn $biib $lly $mrk|$spy #healthcare 32 #millions more #uninsured means no money at these 'record highs' $xlv $i
2017-07-20: johnson &amp;amp; johnson stays healthy in 2q17  $jnj $xlv $pfe $mrk|merck &amp; company, inc. $mrk downgraded to ¡°strong sell¡± at bidaskclub |wouldn't be out of question in my opinion to see these 
2017-07-21: fda grants tentative approval for $mrk's lusduna nexvue |rt AT_USER merck reports #hbv #vaccine shortage¡ú via AT_USER AT_USER $mrk $gsk #hepb |rt AT_USER merck reports #hbv #vaccine shortage¡ú via AT
2017-07-22: commented on 3 things in biotech you should learn today: july 22, 2017  $cslly $incy $mrk|merck &amp; company, inc. $mrk rating lowered to strong sell at bidaskclub |cullen frost bankers inc. has $13.
2017-07-23: #allergan changes severance plan for senior management! $agn $myl $mrk $twtr $aapl $crm $msft $brk $iep $jazz $nflx¡­ |dr. promoting #botox for depression without AT_USER approval! $agn $ibm $pep $brk
2017-07-24: merck #immunotherapy drug fails key clinical trial in head-and-neck #cancer  via AT_USER $mrk|rt AT_USER let¡¯s all bookmark tonight¡¯s bio-twitter $mrk apologia for keytruda failure when the confirma
2017-07-25: rt AT_USER AT_USER AT_USER everybody in t-cell immunotherapies should be interested in $afmd for its nk-cell engagers imo - afm¡­|$mrk's keytruda misses in head and neck cancer |no apples &amp; in you
Answer:
Fall