Alnylam Pharmaceuticals, Inc. (ALNY) stock
ALNYNasdaqPharmaceutical PreparationsFiscal year ends December 31
$165.00−9.00 (-5.17%)
Close on Oct 30, 2026Market cap $22.08BP/E –Yield –
Price history
Alnylam Pharmaceuticals share prices for every month, newest first. Adjusted for stock splits, not for dividends.
Close, Oct 30, 2026
$165.00
-5.17% on the day
52-week range
$163.30 – $479.79
-65.6% from the high
Change over 52 weeks
-63.3%
From $449.56 on Oct 30, 2025
Average volume
1.87M
Shares a day, last 90 sessions
| Month | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 2026 | $248.21 | $251.71 | $163.30 | $165.00 | -33.13% | 47,058,608 |
| Sep 2026 | $242.40 | $272.08 | $236.00 | $246.74 | +2.51% | 31,160,903 |
| Aug 2026 | $208.04 | $244.03 | $208.04 | $240.69 | +17.11% | 38,926,715 |
| Jul 2026 | $304.54 | $380.00 | $197.81 | $205.52 | -31.73% | 45,414,680 |
| Jun 2026 | $299.51 | $310.53 | $273.11 | $301.03 | -0.31% | 26,688,637 |
| May 2026 | $308.76 | $311.88 | $284.28 | $301.98 | -2.43% | 20,112,250 |
| Apr 2026 | $332.69 | $343.36 | $287.00 | $309.49 | -6.46% | 23,230,796 |
| Mar 2026 | $329.41 | $334.42 | $299.62 | $330.87 | -0.62% | 25,990,787 |
| Feb 2026 | $337.42 | $355.49 | $298.00 | $332.92 | -1.52% | 29,136,667 |
| Jan 2026 | $399.34 | $427.05 | $336.39 | $338.06 | -14.99% | 29,939,536 |
| Dec 2025 | $450.00 | $479.79 | $387.03 | $397.65 | -11.87% | 35,862,957 |
| Nov 2025 | $454.58 | $469.11 | $417.00 | $451.23 | -1.05% | 18,492,385 |
| Oct 2025 | $456.00 | $495.55 | $436.51 | $456.04 | +0.01% | 26,405,864 |
| Sep 2025 | $445.84 | $484.21 | $441.50 | $456.00 | +2.13% | 23,909,049 |
| Aug 2025 | $388.68 | $469.81 | $382.19 | $446.51 | +13.84% | 25,597,773 |
| Jul 2025 | $324.77 | $402.43 | $309.57 | $392.24 | +20.29% | 23,214,951 |
| Jun 2025 | $303.10 | $327.21 | $295.82 | $326.09 | +7.07% | 16,609,550 |
| May 2025 | $257.14 | $306.00 | $245.96 | $304.56 | +15.70% | 23,646,225 |
| Apr 2025 | $272.52 | $273.61 | $205.87 | $263.24 | -2.51% | 22,510,250 |
| Mar 2025 | $246.18 | $300.90 | $230.79 | $270.02 | +9.43% | 18,842,095 |
| Feb 2025 | $270.78 | $279.24 | $236.50 | $246.75 | -9.05% | 14,785,593 |
| Jan 2025 | $237.92 | $287.22 | $231.00 | $271.31 | +15.30% | 13,759,990 |
| Dec 2024 | $252.37 | $258.12 | $233.00 | $235.31 | -7.02% | 12,085,184 |
| Nov 2024 | $267.05 | $286.58 | $229.86 | $253.07 | -5.07% | 18,415,531 |
| Oct 2024 | $274.88 | $304.39 | $263.65 | $266.59 | -3.07% | 18,421,091 |
| Sep 2024 | $260.44 | $279.85 | $244.88 | $275.03 | +4.70% | 13,916,273 |
| Aug 2024 | $250.00 | $287.55 | $245.17 | $262.69 | +10.62% | 23,473,648 |
| Jul 2024 | $240.00 | $263.73 | $231.01 | $237.46 | -2.28% | 19,175,739 |
| Jun 2024 | $149.20 | $252.87 | $147.25 | $243.00 | +63.71% | 32,910,639 |
| May 2024 | $144.21 | $155.49 | $143.96 | $148.43 | +3.11% | 12,133,353 |
| Apr 2024 | $148.57 | $159.34 | $141.98 | $143.95 | -3.68% | 10,753,858 |
| Mar 2024 | $150.90 | $155.91 | $143.66 | $149.45 | -1.09% | 12,898,923 |
| Feb 2024 | $173.54 | $176.35 | $143.52 | $151.09 | -12.62% | 27,971,078 |
| Jan 2024 | $189.88 | $199.38 | $172.37 | $172.91 | -9.67% | 12,192,539 |
| Dec 2023 | $167.93 | $198.00 | $166.02 | $191.41 | +13.77% | 11,634,315 |
| Nov 2023 | $151.94 | $174.00 | $148.73 | $168.25 | +10.84% | 12,745,222 |
| Oct 2023 | $177.31 | $180.99 | $148.10 | $151.80 | -14.29% | 15,471,222 |
| Sep 2023 | $199.14 | $212.08 | $168.65 | $177.10 | -10.47% | 14,231,264 |
| Aug 2023 | $193.40 | $200.77 | $178.64 | $197.82 | +1.24% | 10,622,506 |
| Jul 2023 | $188.43 | $218.88 | $187.65 | $195.40 | +2.87% | 10,404,250 |
| Jun 2023 | $185.81 | $205.25 | $184.07 | $189.94 | +2.66% | 11,713,951 |
| May 2023 | $198.87 | $212.47 | $183.00 | $185.01 | -7.12% | 13,253,757 |
| Apr 2023 | $198.60 | $211.27 | $192.38 | $199.20 | -0.56% | 15,714,452 |
| Mar 2023 | $191.45 | $205.14 | $179.19 | $200.32 | +4.63% | 19,322,896 |
| Feb 2023 | $228.15 | $234.70 | $187.52 | $191.45 | -15.44% | 16,243,988 |
| Jan 2023 | $238.00 | $242.39 | $212.64 | $226.40 | -4.73% | 15,311,013 |
| Dec 2022 | $220.35 | $242.97 | $215.28 | $237.65 | +7.73% | 15,516,378 |
| Nov 2022 | $209.46 | $222.59 | $197.22 | $220.59 | +6.43% | 15,902,710 |
| Oct 2022 | $205.10 | $209.97 | $181.65 | $207.26 | +3.55% | 22,511,061 |
| Sep 2022 | $206.73 | $228.05 | $197.20 | $200.16 | -3.15% | 23,539,921 |
| Aug 2022 | $141.82 | $236.80 | $138.18 | $206.67 | +45.50% | 30,043,545 |
| Jul 2022 | $145.00 | $154.00 | $135.46 | $142.04 | -2.61% | 12,451,132 |
| Jun 2022 | $126.01 | $148.25 | $120.43 | $145.85 | +15.94% | 20,656,681 |
| May 2022 | $131.59 | $144.98 | $117.58 | $125.80 | -5.72% | 17,522,942 |
| Apr 2022 | $166.41 | $180.35 | $132.45 | $133.43 | -18.29% | 18,763,820 |
| Mar 2022 | $158.88 | $169.87 | $149.00 | $163.29 | +3.45% | 17,862,559 |
| Feb 2022 | $138.14 | $158.30 | $138.09 | $157.85 | +14.72% | 15,005,131 |
| Jan 2022 | $171.06 | $174.66 | $125.00 | $137.60 | -18.86% | 16,207,327 |
| Dec 2021 | $183.19 | $199.88 | $159.11 | $169.58 | -7.74% | 20,935,485 |
| Nov 2021 | $160.94 | $195.00 | $160.13 | $183.80 | +15.19% | 14,259,756 |
| Oct 2021 | $188.42 | $212.00 | $154.82 | $159.56 | -15.49% | 11,747,641 |
| Sep 2021 | $200.72 | $202.77 | $174.39 | $188.81 | -6.27% | 12,090,823 |
| Aug 2021 | $178.30 | $209.73 | $174.15 | $201.43 | +12.57% | 15,421,468 |
| Jul 2021 | $169.70 | $184.83 | $166.16 | $178.94 | +5.56% | 11,542,515 |
| Jun 2021 | $142.23 | $177.53 | $140.39 | $169.52 | +19.39% | 17,821,012 |
| May 2021 | $140.48 | $144.72 | $125.08 | $141.99 | +0.96% | 9,570,979 |
| Apr 2021 | $143.17 | $147.98 | $131.75 | $140.64 | -0.39% | 9,784,678 |
| Mar 2021 | $149.36 | $153.25 | $130.28 | $141.19 | -4.67% | 12,611,182 |
| Feb 2021 | $154.65 | $172.82 | $143.34 | $148.10 | -1.58% | 12,859,129 |
| Jan 2021 | $130.69 | $178.41 | $124.00 | $150.48 | +15.78% | 18,451,060 |
| Dec 2020 | $130.78 | $142.61 | $121.98 | $129.97 | +0.05% | 9,947,098 |
| Nov 2020 | $124.36 | $144.63 | $120.83 | $129.91 | +5.64% | 12,437,040 |
| Oct 2020 | $146.70 | $148.76 | $119.29 | $122.97 | -15.54% | 9,396,632 |
| Sep 2020 | $133.31 | $147.00 | $119.67 | $145.60 | +9.77% | 11,282,670 |
| Aug 2020 | $146.79 | $154.16 | $128.27 | $132.64 | -9.00% | 8,918,949 |
| Jul 2020 | $148.53 | $167.33 | $143.61 | $145.76 | -1.59% | 13,702,839 |
| Jun 2020 | $135.12 | $158.37 | $120.05 | $148.11 | +9.49% | 21,062,566 |
| May 2020 | $130.45 | $151.84 | $124.95 | $135.27 | +2.71% | 16,857,297 |
| Apr 2020 | $105.14 | $147.41 | $98.01 | $131.70 | +20.99% | 16,966,125 |
| Mar 2020 | $118.89 | $134.26 | $84.97 | $108.85 | -7.49% | 20,996,576 |
| Feb 2020 | $115.92 | $134.51 | $106.28 | $117.66 | +2.50% | 14,198,167 |
| Jan 2020 | $115.57 | $122.42 | $111.53 | $114.79 | -0.33% | 13,521,231 |
| Dec 2019 | $118.01 | $125.72 | $113.50 | $115.17 | -1.68% | 14,018,613 |
| Nov 2019 | $87.04 | $120.00 | $86.50 | $117.14 | +35.05% | 17,003,829 |
| Oct 2019 | $80.07 | $91.59 | $73.32 | $86.74 | +7.86% | 14,351,925 |
| Sep 2019 | $82.50 | $88.00 | $78.02 | $80.42 | -0.33% | 14,479,213 |
| Aug 2019 | $77.45 | $84.48 | $69.11 | $80.69 | +4.00% | 16,801,728 |
| Jul 2019 | $73.69 | $79.09 | $69.52 | $77.59 | +6.93% | 14,658,866 |
| Jun 2019 | $67.68 | $74.85 | $65.95 | $72.56 | +7.46% | 13,974,542 |
| May 2019 | $91.89 | $92.85 | $65.81 | $67.52 | -24.42% | 32,225,732 |
| Apr 2019 | $94.36 | $96.08 | $79.79 | $89.34 | -4.40% | 15,072,016 |
| Mar 2019 | $85.71 | $93.95 | $81.30 | $93.45 | +9.94% | 15,446,184 |
| Feb 2019 | $83.12 | $86.45 | $74.29 | $85.00 | +1.76% | 14,108,443 |
| Jan 2019 | $71.30 | $90.70 | $70.29 | $83.53 | +14.57% | 20,039,671 |
| Dec 2018 | $82.38 | $85.55 | $60.27 | $72.91 | -10.17% | 17,330,659 |
| Nov 2018 | $80.74 | $90.00 | $63.57 | $81.16 | +0.91% | 20,108,494 |
| Oct 2018 | $89.50 | $89.60 | $71.85 | $80.43 | -8.10% | 17,967,669 |
| Sep 2018 | $121.26 | $122.62 | $86.95 | $87.52 | -28.65% | 17,571,887 |
| Aug 2018 | $94.87 | $124.22 | $88.16 | $122.67 | +29.13% | 26,550,647 |
| Jul 2018 | $98.19 | $108.98 | $94.98 | $95.00 | -3.54% | 12,841,346 |
| Jun 2018 | $99.81 | $109.41 | $94.06 | $98.49 | -0.99% | 13,777,704 |
| May 2018 | $94.25 | $106.83 | $87.35 | $99.47 | +5.23% | 20,924,271 |
| Apr 2018 | $118.41 | $118.71 | $93.01 | $94.53 | -20.63% | 27,024,093 |
| Mar 2018 | $120.00 | $153.99 | $117.40 | $119.10 | -0.88% | 20,580,890 |
| Feb 2018 | $129.04 | $131.47 | $108.13 | $120.16 | -7.56% | 13,224,228 |
| Jan 2018 | $128.32 | $139.63 | $122.63 | $129.98 | +2.31% | 19,718,712 |
| Dec 2017 | $134.53 | $139.90 | $119.55 | $127.05 | -5.57% | 19,262,849 |
| Nov 2017 | $123.44 | $147.63 | $120.08 | $134.54 | +10.42% | 33,815,903 |
| Oct 2017 | $122.31 | $126.16 | $111.25 | $121.84 | +3.70% | 22,575,710 |
| Sep 2017 | $85.95 | $119.02 | $70.76 | $117.49 | +37.05% | 48,439,273 |
| Aug 2017 | $83.39 | $87.10 | $74.14 | $85.73 | +3.61% | 15,404,709 |
| Jul 2017 | $80.93 | $86.73 | $76.02 | $82.74 | +3.74% | 16,056,217 |
| Jun 2017 | $66.15 | $86.92 | $66.15 | $79.76 | +21.85% | 22,378,711 |
| May 2017 | $53.70 | $75.83 | $52.03 | $65.46 | +22.13% | 31,372,782 |
| Apr 2017 | $51.29 | $54.31 | $46.90 | $53.60 | +4.59% | 12,405,463 |
| Mar 2017 | $52.79 | $60.41 | $49.00 | $51.25 | -0.76% | 26,254,726 |
| Feb 2017 | $40.07 | $53.94 | $39.01 | $51.64 | +29.13% | 17,694,984 |
| Jan 2017 | $38.15 | $45.64 | $35.98 | $39.99 | +6.81% | 18,934,767 |
| Dec 2016 | $44.13 | $45.07 | $37.05 | $37.44 | -14.66% | 27,495,490 |
| Nov 2016 | $35.76 | $52.85 | $31.38 | $43.87 | +23.23% | 36,477,674 |
| Oct 2016 | $67.65 | $71.67 | $33.16 | $35.60 | -47.48% | 52,300,216 |
| Sep 2016 | $69.80 | $80.11 | $67.06 | $67.78 | -2.96% | 11,301,500 |
| Aug 2016 | $68.47 | $79.79 | $67.49 | $69.85 | +2.60% | 12,693,300 |
| Jul 2016 | $55.00 | $69.22 | $53.56 | $68.08 | +22.69% | 18,449,100 |
| Jun 2016 | $71.02 | $74.20 | $50.13 | $55.49 | -22.63% | 21,518,900 |
| May 2016 | $67.47 | $73.68 | $49.96 | $71.72 | +6.98% | 22,723,200 |
| Apr 2016 | $62.29 | $75.08 | $61.18 | $67.04 | +6.80% | 16,706,600 |
| Mar 2016 | $59.49 | $66.62 | $56.00 | $62.77 | +7.17% | 23,934,300 |
| Feb 2016 | $68.04 | $72.38 | $51.51 | $58.57 | -15.04% | 25,247,200 |
| Jan 2016 | $92.18 | $98.00 | $63.63 | $68.94 | -26.77% | 19,823,400 |
| Dec 2015 | $105.11 | $109.10 | $84.69 | $94.14 | -9.53% | 17,756,400 |
| Nov 2015 | $86.83 | $110.75 | $82.33 | $104.06 | +21.07% | 15,048,700 |
| Oct 2015 | $80.30 | $91.97 | $71.14 | $85.95 | +6.96% | 24,117,600 |
| Sep 2015 | $100.14 | $110.00 | $76.46 | $80.36 | -21.91% | 19,874,400 |
| Aug 2015 | $127.50 | $130.00 | $88.00 | $102.91 | -19.24% | 18,099,200 |
| Jul 2015 | $121.29 | $137.89 | $112.56 | $127.43 | +6.31% | 13,259,600 |
| Jun 2015 | $132.35 | $140.00 | $113.94 | $119.87 | -8.56% | 17,855,300 |
| May 2015 | $101.77 | $133.96 | $101.52 | $131.09 | +28.68% | 18,113,500 |
| Apr 2015 | $103.76 | $132.99 | $98.63 | $101.87 | -2.44% | 14,854,500 |
| Mar 2015 | $102.51 | $121.93 | $97.20 | $104.42 | +2.85% | 15,269,500 |
| Feb 2015 | $94.75 | $107.80 | $82.06 | $101.53 | +8.21% | 11,088,100 |
| Jan 2015 | $97.97 | $108.87 | $85.03 | $93.83 | -3.27% | 20,207,500 |
| Dec 2014 | $100.23 | $111.49 | $90.30 | $97.00 | -3.53% | 12,321,400 |
| Nov 2014 | $92.00 | $103.36 | $86.75 | $100.55 | +8.42% | 11,352,300 |
| Oct 2014 | $78.43 | $99.24 | $72.80 | $92.74 | +18.75% | 21,995,900 |
| Sep 2014 | $69.77 | $79.88 | $63.48 | $78.10 | +12.10% | 13,397,800 |
| Aug 2014 | $54.16 | $70.08 | $52.35 | $69.67 | +28.73% | 11,331,700 |
| Jul 2014 | $63.18 | $67.08 | $51.93 | $54.12 | -14.33% | 11,641,200 |
| Jun 2014 | $59.61 | $71.40 | $54.48 | $63.17 | +6.54% | 22,080,300 |
| May 2014 | $49.50 | $65.31 | $47.42 | $59.29 | +19.71% | 21,329,400 |
| Apr 2014 | $66.80 | $68.96 | $47.03 | $49.53 | -26.23% | 19,777,800 |
| Mar 2014 | $80.11 | $83.69 | $60.28 | $67.14 | -17.36% | 16,465,000 |
| Feb 2014 | $83.67 | $92.45 | $73.01 | $81.24 | -2.89% | 12,748,900 |
| Jan 2014 | $64.25 | $112.57 | $60.24 | $83.66 | +30.11% | 16,581,900 |
| Dec 2013 | $61.25 | $67.97 | $56.65 | $64.30 | +5.07% | 11,619,900 |
| Nov 2013 | $57.51 | $62.23 | $48.16 | $61.20 | +6.23% | 15,944,200 |
| Oct 2013 | $64.03 | $66.17 | $52.57 | $57.61 | -10.00% | 20,455,600 |
| Sep 2013 | $52.74 | $65.83 | $51.70 | $64.01 | +23.57% | 11,952,300 |
| Aug 2013 | $46.64 | $55.32 | $45.80 | $51.80 | +12.19% | 11,694,100 |
| Jul 2013 | $32.00 | $51.00 | $31.75 | $46.17 | +48.94% | 20,764,000 |
| Jun 2013 | $30.63 | $31.79 | $27.98 | $31.00 | +1.21% | 9,752,700 |
| May 2013 | $23.84 | $30.98 | $22.54 | $30.63 | +27.89% | 10,874,800 |
| Apr 2013 | $24.25 | $24.44 | $21.60 | $23.95 | -1.72% | 6,932,200 |
| Mar 2013 | $23.52 | $25.80 | $22.99 | $24.37 | +2.87% | 8,437,400 |
| Feb 2013 | $24.26 | $25.77 | $22.76 | $23.69 | -1.82% | 10,238,500 |
| Jan 2013 | $18.95 | $25.01 | $18.61 | $24.13 | +32.22% | 15,298,600 |
| Dec 2012 | $17.04 | $19.48 | $16.14 | $18.25 | +7.54% | 4,570,000 |
| Nov 2012 | $16.13 | $17.30 | $14.88 | $16.97 | +4.95% | 6,022,800 |
| Oct 2012 | $18.81 | $19.32 | $15.93 | $16.17 | -13.94% | 3,855,400 |
| Sep 2012 | $18.32 | $21.38 | $17.68 | $18.79 | +2.73% | 7,955,000 |
| Aug 2012 | $18.81 | $19.11 | $16.80 | $18.29 | -2.14% | 8,621,100 |
| Jul 2012 | $11.64 | $20.63 | $11.64 | $18.69 | +60.43% | 22,206,000 |
| Jun 2012 | $9.99 | $12.05 | $9.94 | $11.65 | +13.77% | 5,718,500 |
| May 2012 | $11.34 | $11.53 | $9.51 | $10.24 | -10.10% | 7,049,600 |
| Apr 2012 | $11.05 | $11.92 | $9.84 | $11.39 | +2.89% | 6,983,200 |
| Mar 2012 | $13.38 | $13.73 | $11.00 | $11.07 | -17.02% | 7,990,100 |
| Feb 2012 | $11.64 | $13.75 | $10.97 | $13.34 | +15.40% | 15,922,800 |
| Jan 2012 | $8.33 | $11.70 | $8.33 | $11.56 | +41.84% | 7,222,100 |
| Dec 2011 | $7.06 | $8.42 | $6.75 | $8.15 | +14.79% | 5,331,200 |
| Nov 2011 | $7.93 | $8.28 | $6.50 | $7.10 | -12.56% | 6,678,800 |
| Oct 2011 | $6.50 | $8.62 | $5.88 | $8.12 | +23.59% | 5,360,700 |
| Sep 2011 | $7.00 | $7.50 | $6.28 | $6.57 | -5.87% | 6,442,400 |
| Aug 2011 | $9.48 | $9.84 | $6.32 | $6.98 | -25.59% | 5,629,800 |
| Jul 2011 | $9.39 | $10.37 | $9.21 | $9.38 | +0.11% | 3,061,100 |
| Jun 2011 | $10.43 | $10.59 | $8.80 | $9.37 | -10.51% | 4,314,300 |
| May 2011 | $10.31 | $10.57 | $9.38 | $10.47 | +2.05% | 5,156,000 |
| Apr 2011 | $9.65 | $10.58 | $9.25 | $10.26 | +7.32% | 3,554,500 |
| Mar 2011 | $11.00 | $11.09 | $9.03 | $9.56 | -12.93% | 6,562,200 |
| Feb 2011 | $10.34 | $12.34 | $9.65 | $10.98 | +6.29% | 5,683,700 |
| Jan 2011 | $9.91 | $11.16 | $9.82 | $10.33 | +4.77% | 5,680,700 |
| Dec 2010 | $9.24 | $10.53 | $8.79 | $9.86 | +7.76% | 8,321,200 |
| Nov 2010 | $13.16 | $13.64 | $9.10 | $9.15 | -30.37% | 7,169,200 |
| Oct 2010 | $12.28 | $13.98 | $12.07 | $13.14 | +7.09% | 4,102,500 |
| Sep 2010 | $13.90 | $15.19 | $12.24 | $12.27 | -10.24% | 5,086,000 |
| Aug 2010 | $15.59 | $15.74 | $13.51 | $13.67 | -10.94% | 4,767,500 |
| Jul 2010 | $15.03 | $16.36 | $14.76 | $15.35 | +2.20% | 2,867,900 |
| Jun 2010 | $15.61 | $16.33 | $14.91 | $15.02 | -4.94% | 6,151,100 |
| May 2010 | $17.09 | $17.36 | $14.88 | $15.80 | -6.84% | 4,846,300 |
| Apr 2010 | $17.17 | $17.59 | $16.80 | $16.96 | -0.35% | 3,365,900 |
| Mar 2010 | $17.46 | $18.85 | $17.00 | $17.02 | -2.30% | 3,481,900 |
| Feb 2010 | $16.95 | $18.18 | $16.41 | $17.42 | +3.08% | 2,941,700 |
| Jan 2010 | $17.84 | $19.29 | $16.81 | $16.90 | -4.09% | 3,197,600 |
| Dec 2009 | $16.89 | $18.70 | $16.35 | $17.62 | +4.82% | 6,301,300 |
| Nov 2009 | $17.23 | $18.04 | $15.45 | $16.81 | -1.35% | 7,025,400 |
| Oct 2009 | $22.64 | $22.87 | $16.98 | $17.04 | -24.87% | 4,544,800 |
| Sep 2009 | $22.08 | $24.05 | $21.20 | $22.68 | +1.70% | 3,406,300 |
| Aug 2009 | $23.39 | $24.75 | $20.54 | $22.30 | -4.17% | 5,731,700 |
| Jul 2009 | $22.49 | $24.11 | $19.00 | $23.27 | +4.49% | 4,249,100 |
| Jun 2009 | $20.45 | $23.10 | $20.16 | $22.27 | +9.38% | 6,041,500 |
| May 2009 | $18.38 | $22.00 | $17.75 | $20.36 | +11.01% | 7,695,500 |
| Apr 2009 | $18.75 | $20.98 | $16.29 | $18.34 | -3.68% | 5,331,000 |
| Mar 2009 | $18.05 | $20.00 | $14.82 | $19.04 | +3.25% | 10,503,700 |
| Feb 2009 | $20.63 | $23.43 | $18.43 | $18.44 | -12.57% | 5,130,000 |
| Jan 2009 | $24.77 | $26.36 | $20.29 | $21.09 | -14.72% | 4,823,200 |
| Dec 2008 | $17.93 | $25.10 | $16.58 | $24.73 | +35.66% | 8,188,400 |
| Nov 2008 | $22.98 | $27.80 | $16.37 | $18.23 | -20.74% | 8,667,100 |
| Oct 2008 | $28.82 | $28.95 | $18.04 | $23.00 | -20.55% | 11,823,800 |
| Sep 2008 | $29.95 | $32.78 | $25.07 | $28.95 | -2.36% | 10,571,100 |
| Aug 2008 | $35.09 | $36.37 | $28.49 | $29.65 | -14.75% | 11,833,200 |
| Jul 2008 | $26.33 | $35.30 | $25.97 | $34.78 | +30.12% | 13,065,100 |
| Jun 2008 | $28.80 | $29.17 | $25.00 | $26.73 | -7.44% | 8,895,100 |
| May 2008 | $25.01 | $30.74 | $24.56 | $28.88 | +15.15% | 11,007,800 |
| Apr 2008 | $24.56 | $26.45 | $22.55 | $25.08 | +2.79% | 10,690,900 |
| Mar 2008 | $26.50 | $28.15 | $22.25 | $24.40 | -14.08% | 17,861,600 |
| Feb 2008 | $30.39 | $35.19 | $26.61 | $28.40 | -5.46% | 11,636,100 |
| Jan 2008 | $29.00 | $33.75 | $28.59 | $30.04 | +3.30% | 9,938,300 |
| Dec 2007 | $32.29 | $33.75 | $26.84 | $29.08 | -10.85% | 8,379,400 |
| Nov 2007 | $31.03 | $35.15 | $29.26 | $32.62 | +3.29% | 10,954,000 |
| Oct 2007 | $32.58 | $37.35 | $30.60 | $31.58 | -3.63% | 8,174,100 |
| Sep 2007 | $23.35 | $34.85 | $22.87 | $32.77 | +40.22% | 11,153,500 |
| Aug 2007 | $24.27 | $27.20 | $21.98 | $23.37 | -3.07% | 9,520,300 |
| Jul 2007 | $15.29 | $26.24 | $14.87 | $24.11 | +58.72% | 20,181,800 |
| Jun 2007 | $16.51 | $16.90 | $15.06 | $15.19 | -7.38% | 7,681,600 |
| May 2007 | $18.74 | $19.59 | $15.29 | $16.40 | -12.63% | 8,031,100 |
| Apr 2007 | $18.18 | $20.68 | $17.27 | $18.77 | +4.28% | 5,119,800 |
| Mar 2007 | $18.72 | $18.72 | $16.66 | $18.00 | -4.26% | 7,657,500 |
| Feb 2007 | $21.28 | $22.25 | $18.73 | $18.80 | -11.49% | 5,658,600 |
| Jan 2007 | $21.80 | $22.94 | $20.26 | $21.24 | -0.75% | 7,180,600 |
| Dec 2006 | $21.33 | $24.46 | $20.76 | $21.40 | -0.33% | 7,552,800 |
| Nov 2006 | $19.60 | $22.31 | $17.71 | $21.47 | +8.87% | 7,635,100 |
| Oct 2006 | $14.65 | $21.49 | $13.77 | $19.72 | +36.85% | 9,521,600 |
| Sep 2006 | $13.07 | $15.38 | $12.89 | $14.41 | +10.68% | 4,505,300 |
| Aug 2006 | $12.73 | $13.60 | $11.52 | $13.02 | +1.96% | 3,534,600 |
| Jul 2006 | $15.32 | $15.52 | $11.29 | $12.77 | -15.32% | 5,195,900 |
| Jun 2006 | $14.82 | $15.76 | $12.82 | $15.08 | +1.96% | 8,513,600 |
| May 2006 | $15.39 | $17.13 | $13.10 | $14.79 | -3.84% | 6,350,500 |
| Apr 2006 | $17.61 | $17.63 | $14.08 | $15.38 | -12.56% | 5,128,900 |
| Mar 2006 | $16.28 | $18.39 | $15.12 | $17.59 | +9.39% | 7,079,100 |
| Feb 2006 | $13.30 | $16.32 | $11.48 | $16.08 | +19.64% | 11,001,000 |
| Jan 2006 | $13.39 | $15.43 | $12.38 | $13.44 | +0.90% | 3,809,600 |
| Dec 2005 | $12.60 | $14.85 | $12.50 | $13.32 | +6.05% | 3,282,600 |
| Nov 2005 | $9.84 | $13.07 | $9.61 | $12.56 | +30.70% | 2,928,900 |
| Oct 2005 | $11.14 | $12.39 | $9.06 | $9.61 | -14.96% | 3,700,400 |
| Sep 2005 | $9.57 | $15.22 | $9.46 | $11.30 | +18.95% | 13,414,700 |
| Aug 2005 | $9.94 | $10.48 | $8.50 | $9.50 | -2.56% | 2,692,100 |
| Jul 2005 | $7.15 | $10.32 | $6.90 | $9.75 | +33.56% | 2,478,200 |
| Jun 2005 | $7.45 | $7.85 | $6.90 | $7.30 | -2.14% | 611,700 |
| May 2005 | $7.75 | $8.20 | $7.22 | $7.46 | -4.11% | 747,600 |
| Apr 2005 | $7.23 | $9.00 | $7.23 | $7.78 | +6.14% | 1,434,700 |
| Mar 2005 | $7.09 | $8.15 | $6.80 | $7.33 | +2.52% | 1,720,400 |
| Feb 2005 | $7.30 | $8.38 | $6.85 | $7.15 | +2.14% | 2,420,800 |
| Jan 2005 | $7.67 | $11.00 | $6.76 | $7.00 | -6.29% | 5,181,700 |
| Dec 2004 | $8.24 | $8.35 | $6.40 | $7.47 | -6.63% | 2,362,100 |
| Nov 2004 | $5.00 | $8.60 | $5.00 | $8.00 | +52.38% | 2,124,600 |
| Oct 2004 | $5.55 | $6.25 | $5.00 | $5.25 | -8.85% | 555,600 |
| Sep 2004 | $5.75 | $6.09 | $5.01 | $5.76 | +4.73% | 269,300 |
| Aug 2004 | $5.90 | $6.50 | $3.65 | $5.50 | +6.80% | 678,300 |
| Jul 2004 | $7.50 | $8.00 | $5.06 | $5.15 | -31.88% | 588,200 |
| Jun 2004 | $6.10 | $9.50 | $5.26 | $7.56 | – | 2,584,200 |
Seasonality
ALNY return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | 0.6% | 0.0% | 1.2% | -3.1% | 1.0% | 14.6% | -0.2% | 12.9% | 0.7% | -7.5% | 8.7% | -2.5% |
| Months up | 5 of 10 | 4 of 10 | 4 of 10 | 2 of 10 | 6 of 10 | 8 of 10 | 5 of 10 | 9 of 10 | 5 of 10 | 4 of 10 | 7 of 9 | 3 of 9 |
| 2026 | -15.0% | -1.5% | -0.6% | -6.5% | -2.4% | -0.3% | -31.7% | 17.1% | 2.5% | -33.1% | ||
| 2025 | 15.3% | -9.1% | 9.4% | -2.5% | 15.7% | 7.1% | 20.3% | 13.8% | 2.1% | 0.0% | -1.1% | -11.9% |
| 2024 | -9.7% | -12.6% | -1.1% | -3.7% | 3.1% | 63.7% | -2.3% | 10.6% | 4.7% | -3.1% | -5.1% | -7.0% |
| 2023 | -4.7% | -15.4% | 4.6% | -0.6% | -7.1% | 2.7% | 2.9% | 1.2% | -10.5% | -14.3% | 10.8% | 13.8% |
| 2022 | -18.9% | 14.7% | 3.4% | -18.3% | -5.7% | 15.9% | -2.6% | 45.5% | -3.1% | 3.5% | 6.4% | 7.7% |
| 2021 | 15.8% | -1.6% | -4.7% | -0.4% | 1.0% | 19.4% | 5.6% | 12.6% | -6.3% | -15.5% | 15.2% | -7.7% |
| 2020 | -0.3% | 2.5% | -7.5% | 21.0% | 2.7% | 9.5% | -1.6% | -9.0% | 9.8% | -15.5% | 5.6% | 0.0% |
| 2019 | 14.6% | 1.8% | 9.9% | -4.4% | -24.4% | 7.5% | 6.9% | 4.0% | -0.3% | 7.9% | 35.0% | -1.7% |
| 2018 | 2.3% | -7.6% | -0.9% | -20.6% | 5.2% | -1.0% | -3.5% | 29.1% | -28.7% | -8.1% | 0.9% | -10.2% |
| 2017 | 6.8% | 29.1% | -0.8% | 4.6% | 22.1% | 21.8% | 3.7% | 3.6% | 37.0% | 3.7% | 10.4% | -5.6% |