ALNY: Alnylam Pharmaceuticals Inc.

As of Tuesday, October 20th, 2026

$ 230.71

-2.70 -1.16%

Open: 237.73
High: 238.96
Low: 229.54
Volume: 1,457,728
Previous Close on Monday, October 19th, 2026

$ 233.41

+1.58 +0.68%

Open: 232.65
High: 236.54
Low: 231.26
Volume: 1,344,109

Historical Data

Date Open High Low Close Volume Chg %Chg
2026-10-20 237.73 238.96 229.54 230.71 1,457,728 -2.70 -1.16
2026-10-19 232.65 236.54 231.26 233.41 1,344,109 +1.58 +0.68
2026-10-16 235.18 237.98 231.29 231.83 1,404,827 -2.20 -0.94
2026-10-15 228.17 234.30 228.12 234.03 1,257,377 +9.56 +4.26
2026-10-14 223.50 229.56 222.25 224.47 1,103,948 +0.65 +0.29
2026-10-13 228.93 229.53 221.56 223.82 1,119,042 -3.20 -1.41
2026-10-12 233.13 233.60 226.35 227.02 916,852 -5.66 -2.43
2026-10-09 224.74 232.94 222.71 232.68 859,802 +8.15 +3.63
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Metrics and Technicals

Period High Low Chg %Chg Max Drawdown SMA
Peak Trough %Loss
Period High Low Chg %Chg MDD SMA
5D 238.96
On 2026-10-20		 222.25
On 2026-10-14		 6.89 3.08 237.98
On 2026-10-16		 231.26
On 2026-10-19		 -2.83 230.89
10D 238.96
On 2026-10-20		 218.39
On 2026-10-08		 6.77 3.02 233.60
On 2026-10-12		 221.56
On 2026-10-13		 -5.15 228.69
20D 257.27
On 2026-09-29		 215.46
On 2026-10-05		 -20.94 -8.32 257.27
On 2026-09-29		 215.46
On 2026-10-05		 -16.25 234.49
WTD 238.96
On 2026-10-20		 229.54
On 2026-10-20		 -1.12 -0.48 236.54
On 2026-10-19		 236.54
On 2026-10-19		 0.00 232.06
MTD 251.71
On 2026-10-01		 215.46
On 2026-10-05		 -16.03 -6.50 251.71
On 2026-10-01		 215.46
On 2026-10-05		 -14.40 227.26
As of Tuesday, October 20th, 2026
 
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ALNY

Alnylam Pharmaceuticals Inc.

230.71 -2.70 -1.16 1,457,728